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VGF

VGF, or inducible, is a protein-coding located on 7q22.1 in humans that encodes a secreted polypeptide and precursor primarily expressed in neuroendocrine cells. First identified in the 1980s as an immediate-early rapidly induced by (NGF) in rat PC12 cells, VGF shares structural similarities with the secretogranin/chromogranin family of proteins and undergoes proteolytic processing to generate bioactive peptides. Although its precise physiological functions remain under investigation, VGF is implicated in key processes such as , glucose metabolism, insulin secretion, , and neuronal survival. The VGF gene spans approximately 6 kb of genomic DNA and consists of two exons, with the entire protein-coding sequence contained within the second exon, producing a 615-amino-acid precursor protein that is post-translationally modified and cleaved into multiple peptides. Expression of VGF is highly enriched in the , particularly in the (with an RPKM value of 14.2), as well as in and endocrine organs, where it responds to like NGF and (BDNF). Research has linked VGF-derived peptides to protective roles in neuronal degeneration, such as mitigating loss following crush injury, and to metabolic regulation, including the preservation of beta-cell mass and improvement of blood glucose levels in streptozotocin-induced diabetic mouse models. Emerging studies highlight VGF's potential as a and therapeutic target across various pathologies. In neurodegenerative diseases like Alzheimer's and Parkinson's, reduced VGF levels in correlate with disease progression, suggesting its utility in and . Similarly, in , VGF expression promotes chemoresistance and poor prognosis in lung cancers with neuroendocrine features, while in metabolic disorders, it influences stress responses and tissue repair, such as in renal tubular epithelial cells under ischemic or toxic conditions. As of 2025, recent studies have further validated decreased CSF VGF levels as a for Alzheimer's disease progression and identified roles in tumor progression in adrenocortical and pancreatic cancers. Ongoing research, including genetic overexpression models, continues to elucidate VGF's multifaceted roles, positioning it as a promising candidate for interventions in neurological, metabolic, and inflammatory conditions.

Discovery and Nomenclature

Discovery

The VGF gene was first identified in 1985 by et al. through the of a sequence from rat PC12 cells, where its expression was induced more than 50-fold within 5 hours of (NGF) treatment. This discovery highlighted VGF as one of the earliest and most strongly regulated genes in response to NGF, a key factor in neuronal development and differentiation. The identification utilized a differential hybridization screening approach to isolate mRNAs upregulated specifically by NGF, distinguishing VGF from other NGF-responsive transcripts. The initial partial cDNA clone predicted a polypeptide of 90 . Subsequent full-length sequencing revealed that the rat encodes a precursor polypeptide consisting of 617 , with a calculated molecular weight of approximately 70 . The sequence includes a hydrophobic N-terminal , indicating processing for secretion. Subsequent studies confirmed the inducibility of VGF through NGF signaling pathways, demonstrating rapid transcriptional activation mediated by receptors and downstream effectors such as cyclic AMP-responsive elements. Early investigations into VGF mRNA expression patterns revealed its selective presence in neuroendocrine cells, including those in the central and peripheral nervous systems, , and . These studies, building on the initial PC12 cell findings, used analysis to detect VGF transcripts in neuronal and endocrine tissues, underscoring its role as a marker of neuroendocrine differentiation. The protein's classification as a secretory product was further supported by the presence of paired basic residues suggestive of proteolytic processing in secretory granules, akin to other granin family members.

Nomenclature

The official symbol for the VGF gene is VGF, as approved by the (HGNC), with the full approved name VGF inducible. This symbol, while originally derived from its inducibility by (NGF), is now designated as non-acronymic to adhere to HGNC guidelines for stable and unique gene identifiers. Previous or alias symbols include SCG7 and SGVII, reflecting its classification within the granin family. The protein product of the VGF gene is formally named neurosecretory protein VGF, a secreted polypeptide expressed in neuroendocrine cells. It is also known as secretogranin VII, underscoring its membership in the granin family of acidic, heat-stable secretory proteins involved in the packaging and release of hormones and neuropeptides. Historically, the gene was first cloned in 1985 as a 2.7-kb cDNA fragment termed VGF8a, isolated from NGF-stimulated PC12 cells via differential hybridization screening. This nomenclature arose from the clone's identification in an NGF-responsive library, but subsequent standardization by HGNC established the current form. Notably, the acronym VGF for the gene and protein is distinct from unrelated medical usages, such as vein graft failure in coronary artery bypass grafting contexts.

Gene and Structure

Gene

The human VGF gene is located on chromosome 7q22.1 and spans approximately 6 kb of genomic DNA. It consists of two exons, with exon 1 containing only 5'-untranslated sequence and exon 2 encoding the entire protein, resulting in no introns within the coding sequence. The promoter region of the VGF gene includes a cAMP response element (CRE) that binds the transcription factor CREB to mediate NGF inducibility. The VGF gene exhibits high evolutionary conservation across vertebrates, including orthologs in mammals such as mice and rats. The encoded precursor protein comprises 615 in humans, compared to 617 in mice and rats.

Protein Structure

The VGF precursor protein in humans is a 615-amino acid polypeptide with a predicted of approximately 68 , functioning as a precursor in the regulated secretory pathway of neuroendocrine cells and neurons. It features a 22-amino acid N-terminal (residues 1-22) that directs the protein to the for secretion, followed by the propeptide region (residues 23-615) that undergoes post-translational processing. This signal sequence is cleaved during translocation, yielding the mature pro-VGF form stored in large dense-core vesicles. VGF contains multiple dibasic cleavage sites, primarily pairs of () and () residues, which serve as motifs for prohormone convertases such as PCSK1/3 and PCSK2. These sites, distributed throughout the propeptide, enable - and cell-specific proteolytic into smaller bioactive fragments, with at least 12 potential cleavage points identified in the human sequence. For instance, clusters of these dibasic pairs occur in the central and C-terminal regions, facilitating the generation of peptides like those in the TLQP family through endoproteolytic cleavage followed by carboxypeptidase trimming and, in some cases, C-terminal amidation. The protein exhibits granin-like properties due to its high content of acidic residues, including numerous glutamic acid (E) and aspartic acid (D) motifs, which contribute to a low isoelectric point (pI ≈ 4.5) and promote aggregation in acidic, calcium-rich environments of the trans-Golgi network and secretory granules. Potential N-linked glycosylation sites are present, supporting its glycoprotein nature and aiding in proper folding and vesicular sorting, though O-linked modifications have also been observed in processed forms. No high-resolution three-dimensional structure of full-length VGF has been experimentally resolved, but computational predictions indicate alpha-helical regions, particularly a helical loop in the C-terminal domain (residues ~556-615), which may contribute to peptide stability and interactions.

Expression and Regulation

Tissue Distribution

VGF exhibits predominant expression in neuroendocrine cells, particularly within the central and peripheral nervous systems, as well as endocrine organs. High levels of VGF mRNA and protein are found in the , including the anterior and posterior lobes, where it is localized to neuroendocrine and endocrine cell populations. In the , VGF is synthesized by chromaffin cells, contributing to its neuroendocrine profile. Within the , expression is enriched in hypothalamic neurons, especially in the arcuate and ventromedial nuclei, alongside notable presence in hippocampal and olfactory regions. In peripheral tissues, VGF is detected in endocrine cells of the and . In the , in situ hybridization reveals VGF mRNA in nearly all endocrine cells of rat and bovine islets, with immunohistochemical analysis confirming protein localization in these insulin- and glucagon-producing populations. Similarly, in the gut, VGF mRNA is identifiable in enteroendocrine cells of the esophagus, stomach, and intestine through , indicating a role in peripheral neuroendocrine signaling. The Human Protein Atlas shows cytoplasmic expression in neuronal and neuroendocrine cells, with detection in endocrine tissues including the and . Developmentally, VGF expression initiates embryonically around E11.5 in rat primordia of neural ganglia and expands to neuroendocrine sites by E15.5, but it peaks postnatally in brain regions implicated in energy regulation, such as the hypothalamus. This postnatal surge aligns with phases of axonal outgrowth and synaptogenesis in neuronal subsets, with sustained high levels in the arcuate nucleus by adulthood.

Regulation Mechanisms

VGF expression is primarily induced by nerve growth factor (NGF) through activation of the TrkA receptor, which triggers downstream Ras/MAPK/ERK signaling and culminates in phosphorylation of the transcription factor CREB at serine 133, thereby promoting VGF transcription via CREB-binding elements in the promoter region. This pathway is particularly prominent in neuronal cells, such as PC12 pheochromocytoma cells, where NGF rapidly upregulates VGF mRNA within hours of stimulation. Additional regulators modulate VGF expression in specific contexts. (BDNF) upregulates VGF via TrkB receptor signaling in hippocampal neurons, enhancing transcription and contributing to . Glucocorticoids, such as dexamethasone, can increase VGF expression, as observed following systemic or intratympanic administration in guinea pigs. In the , VGF exhibits circadian rhythmicity, with mRNA levels peaking in response to stimuli during subjective night in the , mediated by promoter elements and influenced by photoperiodic changes. Recent research indicates that VGF expression is also regulated by neuronal activity in parvalbumin-positive and increases during development in induced pluripotent stem cell-derived neurons. Post-translational modifications of the VGF protein further regulate its and bioactivity. Tyrosine sulfation occurs on specific residues in derived peptides, enhancing their stability and receptor interactions, while C-terminal amidation, facilitated by peptidylglycine alpha-amidating monooxygenase, is essential for the of peptides like TLQP-21, promoting their regulated release from neuroendocrine cells. These modifications occur in the secretory pathway and are critical for VGF-derived peptides' roles in cellular signaling.

Biological Functions

Energy Homeostasis

VGF plays a critical role in through its expression in the , where it contributes to signaling and the regulation of food intake and body weight. Hypothalamic VGF mRNA levels are upregulated in response to administration and agonists, while downregulates expression, indicating its integration into pathways that sense nutritional status and promote . Central administration of VGF-derived peptides, such as TLQP-21, acutely reduces food intake and body weight gain in , supporting VGF's role in modulating energy balance by enhancing and preventing excessive caloric consumption. Studies using VGF mice reveal that the protein is essential for normal energy regulation, as these animals display a characterized by reduced body weight (40-60% lower than wild-type by adulthood), increased energy expenditure, and with elevated oxygen consumption. Contrary to expectations for a satiety-related factor, VGF-deficient mice do not exhibit hyperphagia under feeding conditions; instead, their food intake normalized to body weight is comparable or slightly elevated, yet they resist diet-induced , high-fat diet-induced weight gain, and due to heightened metabolic rate and in . These mice also show impaired in certain contexts, such as reduced adaptive responses to cold, but overall maintain normal core body temperature through compensatory hyperactivity. VGF interacts with key hormonal pathways involved in , including those of and insulin, to fine-tune metabolic responses. signaling upregulates hypothalamic VGF expression, and VGF in leptin-deficient models attenuates and , suggesting VGF acts downstream or in parallel to mediate leptin's effects on energy balance. VGF-derived peptides further influence insulin sensitivity and glucose handling; for instance, TLQP-62 enhances insulin secretion from pancreatic β-cells and modulates (AMPK) activity, leading to improved glucose and reduced risk of development in preclinical models. These interactions highlight VGF's broader role in integrating peripheral signals with central metabolic control.

Neuronal Plasticity and Neurogenesis

VGF-derived peptides, particularly those from the C-terminal region, play a significant role in enhancing in the . Application of these s to cultured hippocampal neurons acutely increases synaptic charge transfer in a dose-dependent manner, mimicking aspects of (LTP) by facilitating excitatory postsynaptic potentials without altering presynaptic release. Furthermore, the VGF-derived peptide TLQP-62 promotes dendritic maturation, including increased branching and total length, in developing hippocampal neurons, while overexpression of VGF via vectors boosts spine formation and elevates dendritic spine density, favoring immature spine morphologies that support . VGF also contributes to adult neurogenesis in the hippocampal dentate gyrus, where it enhances the proliferation of neural progenitor cells. This process is activity-dependent and supports synaptic of new neurons. In conditional VGF knockout mice, where the is ablated specifically in adult excitatory neurons, there is a marked impairment in during contextual tasks, accompanied by reduced VGF expression in the . These knockouts exhibit deficits in formation without affecting or anxiety-like behaviors, underscoring VGF's necessity for neurogenesis-mediated consolidation. Notably, while basal LTP remains intact in global VGF knockouts, long-term depression () is disrupted, further linking VGF to fine-tuned hippocampal essential for learning. In models, VGF exhibits antidepressant-like effects, reducing immobility in the forced swim test following intrahippocampal infusion, an outcome comparable to traditional . These behavioral improvements correlate with VGF's promotion of hippocampal proliferation, increasing BrdU-labeled cells by approximately 50% and enhancing neuronal in vivo. Chronic treatment with , including the SSRI and the tricyclic , upregulates VGF expression in the , suggesting VGF acts downstream in antidepressant mechanisms to foster and mood regulation.

Derived Peptides

Major Cleavage Products

The VGF precursor protein undergoes proteolytic processing primarily by the prohormone convertases PC1/3 and PC2, which cleave at dibasic sites to generate more than 10 bioactive fragments stored in dense-core secretory granules. This processing yields a variety of peptides from both the N- and C-terminal regions of the 615-amino-acid proprotein. Among the major C-terminal cleavage products are TLQP-21, comprising 556–576, and the longer TLQP-62, spanning 556–615. An example of an N-terminal product is NAPP-129 (residues 485–615). Processing of VGF exhibits tissue-specific variations, with a higher abundance of TLQP peptides observed in the compared to peripheral tissues. For instance, in the and , these C-terminal fragments predominate, whereas peripheral endocrine tissues like the show relatively more intact or larger precursor forms.

Functional Roles of Peptides

VGF-derived exhibit diverse biological activities, primarily through interactions with specific receptors and signaling pathways in various tissues. These , generated via proteolytic processing of the VGF proprotein, contribute to metabolic regulation, immune modulation, and . Key examples include TLQP-21, TLQP-62, and LQEQ-19, each displaying distinct mechanisms of action. TLQP-21, a 21-amino-acid corresponding to residues 556-576 of the VGF protein, acts as an for the complement 3a receptor (C3aR1), a G-protein-coupled receptor expressed on adipocytes, , and other cell types. This activation enhances lipolysis in by amplifying β-adrenergic signaling and promoting hormone-sensitive phosphorylation via ERK pathways, thereby increasing energy expenditure and reducing fat mass in models of diet-induced . In the , TLQP-21 binding to C3aR1 on boosts cellular motility and phagocytic activity, supporting neuroinflammatory responses without directly altering neuronal excitability. Additionally, TLQP-21 influences stress-related behaviors; chronic administration exacerbates social avoidance in chronic social stress models, suggesting a role in modulating anxiety-like responses through central C3aR1 pathways. TLQP-62, encompassing residues 556-615, primarily targets pancreatic β-cells to regulate glucose . It potently stimulates both basal and glucose-induced insulin secretion in cell lines and isolated islets, acting via a mechanism independent of known receptors but involving enhanced of insulin granules. In adipocytes, TLQP-62 has been observed to influence lipid dynamics, though its effects are less pronounced than those of TLQP-21; acute exposure increases intracellular lipid accumulation in differentiated 3T3-L1 cells, potentially linking it to remodeling during metabolic stress. Other VGF-derived peptides, such as LQEQ-19 (residues 597–615), modulate inflammatory and nociceptive pathways by activating p38 (MAPK) in spinal . This activation occurs following peripheral or , where LQEQ-19 sensitizes nociceptors and contributes to hypersensitivity, highlighting its pro-nociceptive role in states. Similarly, AQEE-30 (residues 586–615) engages the same p38 pathway, amplifying microglial responses to promote underlying inflammatory pain without affecting acute . These actions underscore the peptides' contributions to , distinct from their metabolic functions. Recent studies (as of 2025) have also identified roles for AQEE-30 in stimulating osteoblastic activity and cortical formation, and for AQEE and GGEE peptides as potential biomarkers for differentiating subtypes.

Role in Pathology

Neurodegenerative Diseases

VGF levels are consistently decreased in the (CSF) and of patients with (AD) compared to healthy controls, with this reduction correlating negatively with cognitive performance and serving as a potential indicator of disease progression. Lower CSF VGF concentrations have been linked to accelerated cognitive decline, hippocampal atrophy, and reduced glucose metabolism in AD cohorts, independent of core AD biomarkers like amyloid-beta and . In preclinical AD models, such as 5xFAD mice, VGF overexpression partially rescues amyloid-beta-induced memory impairments and reduces neuropathological features including plaque burden and microglial activation, highlighting its neuroprotective potential. In (), VGF-derived peptides exhibit dysregulation, with plasma levels significantly reduced in drug-naïve patients relative to controls, positioning VGF as a promising for early-stage detection and monitoring disease duration or treatment response. This decrease aligns with broader granin family alterations in PD CSF, potentially reflecting impaired secretory pathways involving aggregation. Recent 2025 studies indicate that early dysfunction in overexpression models alters pro-VGF processing in and , further supporting its biomarker role. For (), VGF and its derived peptides, such as NERP-1 and AQEE-10, are reduced in CSF and blood of patients compared to controls, with levels correlating to disease stage and severity, indicating utility for diagnosis and progression tracking. These alterations precede symptom onset in SOD1-G93A mouse models and are more pronounced in advanced . VGF peptides like LQEQ-19 show neuroprotective effects against degeneration . Preservation of VGF expression has been proposed as a therapeutic strategy to slow progression, based on its associations with neuronal survival pathways, with 2025 research highlighting differential regulation of NERP-1 modifications in .

Psychiatric and Metabolic Disorders

VGF expression is significantly reduced in patients with (MDD), as evidenced by lower mRNA levels in leukocytes compared to healthy controls. This downregulation persists in preclinical models of and correlates with symptom severity, including increased risk in affected individuals. Reduced serum VGF levels are also observed in MDD. treatments, such as selective serotonin reuptake inhibitors, restore VGF levels, suggesting its role in therapeutic responses. Among VGF-derived peptides, TLQP-21 has emerged as a potential target due to its ability to ameliorate depression-like behaviors in models. Intracerebroventricular administration of TLQP-21 reduces immobility time in the forced swim test and enhances hippocampal , mimicking effects of established s. These actions are mediated through activation of neurotrophic signaling pathways, including BDNF, positioning TLQP-21 for further exploration in MDD . VGF modulates responses and is linked to dysregulated hypothalamic-pituitary-adrenal activity, with impairing to acute stressors like cold exposure. VGF is associated with metabolic disorders, including and , through alterations in peptide profiles observed in patient cohorts. Plasma levels of specific VGF fragments, such as TLQP-21 and AQEE-30, are decreased in obese individuals and those with , correlating with and . Human genetic studies further implicate VGF variants in (BMI) regulation, with polymorphisms at the 7q22.1 locus linked to increased risk and leanness phenotypes in population analyses. These findings underscore VGF's contribution to energy imbalance in metabolic pathologies, distinct from its broader role in .

References

  1. [1]
    Gene ResultVGF VGF nerve growth factor inducible [ (human)] - NCBI
    Sep 9, 2025 · Neuronal survival factor VGF promotes chemoresistance and predicts poor prognosis in lung cancers with neuroendocrine feature. Low VGF is ...
  2. [2]
    VGF as a biomarker and therapeutic target in neurodegenerative ...
    VGF was first identified as a nerve growth factor (NGF)-response gene by cloning of the nervous system-specific mRNA, VGF8a, from PC12 cells treated with NGF.
  3. [3]
    Review VGF: A prospective biomarker and therapeutic target for ...
    Neuroendocrine regulatory polypeptide VGF (nerve growth factor inducible) was firstly found in the rapid induction of nerve growth factor on PC12 cells.Missing: acronym | Show results with:acronym<|control11|><|separator|>
  4. [4]
    Entry - *602186 - VGF, NERVE GROWTH FACTOR-INDUCIBLE
    Canu et al. (1997) demonstrated that the single-copy human VGF gene spans 6 kb of genomic DNA and contains 2 exons. The entire VGF protein is encoded by ...<|control11|><|separator|>
  5. [5]
    VGF nerve growth factor inducible is involved in retinal ganglion ...
    Nov 6, 2018 · These findings indicate that VGF plays important roles in neuronal degeneration and has protective effects against the ONC on RGCs.
  6. [6]
    VGF nerve growth factor inducible has the potential to protect ...
    VGF-OE mice improved blood glucose levels and maintained β-cell mass compared to wild-type (WT) mice on STZ-induced diabetic model. In addition, VGF-OE mice ...
  7. [7]
    SOX9 promotes stress-responsive transcription of VGF nerve growth ...
    We find that Vgf nerve growth factor inducible gene up-regulation is a common transcriptional stress response in RTECs to ischemia-, cisplatin-, and ...
  8. [8]
  9. [9]
    Neurosecretory protein VGF - Rattus norvegicus (Rat) | UniProtKB
    Sequence · Length. 617 · Mass (Da). 68,179 · Last updated. 2009-05-26 v3 · MD5 Checksum. 5D81F9041765D60BD01DDF8A4BBF8288 ...
  10. [10]
  11. [11]
  12. [12]
    HGNC Guidelines | HUGO Gene Nomenclature Committee
    Every gene that we name is assigned a unique symbol, HGNC ID (in the format HGNC:#) and descriptive name. Symbols contain only uppercase Latin letters and ...
  13. [13]
    Gene: VGF (ENSG00000128564) - Summary - Ensembl
    Gene: VGF ENSG00000128564 ; Description. VGF nerve growth factor inducible [Source:HGNC Symbol;Acc:HGNC:12684] ; Gene Synonyms. SCG7, SGVII ; Location. Chromosome ...
  14. [14]
    Neurosecretory protein VGF - Homo sapiens (Human) | UniProtKB
    VGF and peptides derived from its processing play many roles in neurogenesis and neuroplasticity associated with learning, memory, depression and chronic pain.Missing: rat | Show results with:rat
  15. [15]
    Saphenous Vein Graft Failure after Coronary Artery Bypass Surgery
    Sep 26, 2014 · VGF was defined as ≥75% stenosis or occlusion detected at follow-up angiography 12–18 months after CABG or earlier angiography performed for ...
  16. [16]
    Cloning, structural organization analysis, and ... - PubMed
    The gene spans approximately 6 kb and contains two exons. The entire VGF protein is encoded by exon 2, while exon 1 contains only 5'-untranslated sequence. The ...
  17. [17]
    NGF induces the expression of the VGF gene through a cAMP ...
    Promoter fragments from the VGF gene that include the core CRE efficiently bind the inducible transcription factor CREB, while fragments bearing mutations that ...
  18. [18]
    Role of VGF-Derived Carboxy-Terminal Peptides in Energy Balance ...
    VGF proteins are conserved throughout vertebrate evolution (3), although the biological significance of small differences that exist in the sequences of several ...
  19. [19]
    Neuroendocrine Role for VGF - Frontiers
    Feb 1, 2015 · VGF peptides have been associated with a number of neuroendocrine roles, and in this review, we aim to describe these roles to highlight the ...
  20. [20]
    The vgf gene and its derived peptides. The VGF polypeptide is the...
    The VGF polypeptide is the precursor of several biologically active peptides, which are released and play a role in intercellular communication. The gene ...Missing: glycosylation | Show results with:glycosylation
  21. [21]
    Differential distribution of VGF-derived peptides in the adrenal ...
    Upon gel chromatography, bona fide VGF precursor, ~7.5 and ~3.5 kDa forms were revealed by C-terminus assays, HVLL peptides being limited to small fragments.Missing: length | Show results with:length
  22. [22]
    VGF as a biomarker and therapeutic target in neurodegenerative ...
    Full-length human VGF1–615 is predominantly synthesized in neurons and neuroendocrine cells.5,9 The human VGF gene comprising two exons totalling 2551 bp ...
  23. [23]
    The neuroendocrine protein VGF is sorted into dense-core granules ...
    VGF is rich in charged, acidic amino acid residues, has many proline and glutamic acid clusters, has a low isoelectric point [26], [27] and has a high heat ...Missing: like | Show results with:like
  24. [24]
    An atlas of O-linked glycosylation on peptide hormones reveals ...
    Aug 20, 2020 · We analyzed glycosite locations relative to protein topology and known functional features and found that the majority of sites were distributed ...
  25. [25]
    An N-terminal signal peptide-containing domain with the VGF C ...
    We used a number of independent algorithms to confi- dently and reproducibly predict the secondary structure of the VGF N- and C-terminal domains, which ...
  26. [26]
    Neuroendocrine Role for VGF - PMC - PubMed Central - NIH
    Feb 2, 2015 · Cho KO, Skarnes WC, Minsk B, Palmieri S, Jackson-Grusby L, Wagner JA ... The role of the vgf gene and VGF-derived peptides in nutrition and ...The Structure And Processing... · Physiological Roles Of Vgf... · Energy Balance
  27. [27]
    Developmental expression of VGF mRNA in the prenatal ... - PubMed
    VGF is a developmentally regulated, secretory peptide precursor that is expressed by neurons and neuroendocrine cells.Missing: energy | Show results with:energy
  28. [28]
    Regulatory elements in the promoter region of vgf, a nerve growth ...
    vgf, a gene coding for a protein secreted through the regulated pathway, is rapidly up-modulated by nerve growth factor in PC12 cells and is expressed in ...Missing: CREB introns
  29. [29]
    NERVE GROWTH FACTOR SIGNALING, NEUROPROTECTION ...
    CREB may also play an impor- tant role in transcriptional regulation of several NGF-specific delayed response genes, including the VGF gene. Mutation of the ...<|control11|><|separator|>
  30. [30]
    Structure of the gene encoding VGF, a nervous system-specific ...
    Opposite regulation of pro-opiomelanocortin gene transcription by glucocorticoids and CRH. ... Hypothalamic expression of a novel gene product, VGF ...
  31. [31]
    Brain-Derived Neurotrophic Factor-Induced Gene Expression ...
    Nov 26, 2003 · VGF protein was also upregulated by BDNF treatment and was expressed in a punctate manner in dissociated hippocampal neurons. Collectively, ...
  32. [32]
    Impact of Systemic versus Intratympanic Dexamethasone ... - PubMed
    Jul 22, 2021 · Glucocorticoids ... In both IP and IT dexamethasone groups, VGF nerve growth factor inducible was significantly upregulated compared to control.
  33. [33]
    Regulation of the VGF Gene in the Golden Hamster ... - PubMed - NIH
    Photic induction of vgf in the SCN occurs only at circadian times when light also causes a phase shift of the circadian system.
  34. [34]
    Photoperiodic Regulation of Histamine H3 Receptor and VGF ...
    The increase in VGF mRNA expression in SD suggests that the dmpARC is involved in the synthesis and release of a neuropeptide or transmitter, which may relay SD ...<|control11|><|separator|>
  35. [35]
    Structure of AQEE-30 of VGF Neuropeptide in Membrane-Mimicking ...
    Some VGF peptides have post-translational modifications such as phosphorylation, acetylation, sulfation, and amidation [5]. ... changes may help to bind ...
  36. [36]
    Differential Neuropeptidomes of Dense Core Secretory Vesicles ...
    Jun 21, 2021 · Proteolytic processing is accompanied by covalent post-translational modifications (PTMs) of neuropeptides comprising C-terminal amidation ...
  37. [37]
    Role of Hypothalamic VGF in Energy Balance and Metabolic ...
    Overexpressing BDNF or acute injection of BDNF protein to the hypothalamus up-regulated VGF, whereas suppressing BDNF signaling down-regulated VGF expression.Missing: circadian | Show results with:circadian
  38. [38]
    VGF-Derived Peptide, TLQP-21, Regulates Food Intake and Body ...
    In this study we have investigated the acute and chronic action of VGF on food intake, body weight, energy metabolism, and hypothalamic gene expression in the ...
  39. [39]
    Article Targeted Deletion of the Vgf Gene Indicates that the Encoded ...
    VGF mRNA and polypeptide are expressed at relatively high levels in the rat hypothalamus (50, 51, 45, 47), and previous studies have shown that VGF mRNA levels ...
  40. [40]
    The role of the vgf gene and VGF-derived peptides in nutrition and ...
    The vgf gene encodes a precursor protein of 615 (human) and 617 (rat, mice) amino acids [49, 75]. VGF precursor protein sequence is highly conserved among rats ...
  41. [41]
    Germline ablation of VGF increases lipolysis in white adipose tissue in
    Homozygous germline Vgf knockout mice are lean and hypermetabolic and resist developing obesity and diabetes when fed a high-fat diet (Hahm et al. 1999), ...
  42. [42]
    The VGF-derived peptide TLQP-62 modulates insulin secretion and ...
    The VGF-derived peptide TLQP-62 modulates insulin secretion and glucose homeostasis ... TLQP-62 induced a significant early decrease (2–5 min) in AMPK ...
  43. [43]
  44. [44]
  45. [45]
  46. [46]
    In vitro and in vivo pharmacological role of TLQP‐21, a VGF‐derived ...
    Jul 13, 2009 · The vgf gene encodes for VGF, a 617 amino acid precursor protein (Levi et al., ... The precursor protein in the rat is processed by the ...
  47. [47]
    The neuropeptide TLQP-21 opposes obesity via C3aR1-mediated ...
    TLQP-21 treatment decreases body weight and fat mass in diet induced obese mice by a mechanism involving β-adrenergic and C3a receptor activation without ...Missing: anxiolytic | Show results with:anxiolytic
  48. [48]
    VGF-derived peptide TLQP-21 modulates microglial function ...
    Jan 10, 2020 · The C-terminal peptide TLQP-21 (named by its four N-terminal amino acids and length) is processed from the 617 amino acid VGF precursor, is ...
  49. [49]
    Implication of the VGF-derived peptide TLQP-21 in mouse acute and ...
    TLQP-21 worsened the behavioral syndrome induced by chronic social stress, further exacerbating the social avoidance exhibited by stressed mice receiving ...Missing: anxiolytic | Show results with:anxiolytic
  50. [50]
    Investigation of the effects of VGF overexpression and VGF-derived ...
    Aug 18, 2023 · Here we show that treatment of 3T3-L1 adipocytes with TLQP-62 significantly increased cellular lipid content, whereas treatment with AQEE-30 and VGF ...
  51. [51]
    Proteomic Analysis Uncovers Novel Actions of the Neurosecretory ...
    Oct 21, 2009 · Our results demonstrate rapid upregulation of VGF in sensory neurons after nerve injury and inflammation and activation of microglial p38 by VGF peptides.
  52. [52]
    Cerebrospinal fluid VGF is associated with the onset and ...
    Mar 17, 2025 · Reduced CSF VGF was associated with cognitive decline, hippocampal atrophy, ventricle enlargement, and glucose hypometabolism at baseline, and it predicted a ...
  53. [53]
    Multiscale causal networks identify VGF as a key regulator ... - Nature
    Aug 7, 2020 · Overexpression of neuropeptide precursor VGF in 5xFAD mice partially rescued beta-amyloid-mediated memory impairment and neuropathology.
  54. [54]
    VGF peptides as novel biomarkers in Parkinson's disease
    Nov 12, 2019 · Plasma VGF levels may represent a useful biomarker, especially in the early stages of PD.
  55. [55]
    Cerebrospinal fluid proteomics implicates the granin family ... - Nature
    Feb 12, 2020 · Our study identifies several novel protein changes in Parkinson's disease cerebrospinal fluid that may be exploited for understanding etiology of disease and ...<|separator|>
  56. [56]
    VGF and Its Derived Peptides in Amyotrophic Lateral Sclerosis - PMC
    Mar 22, 2025 · In conclusion, it seems that the VGF precursor and the peptides it produces could have a role in the pathophysiology of ALS, and the VGF peptide ...
  57. [57]
    VGF Protein and Its C-Terminal Derived Peptides in Amyotrophic ...
    VGF mRNA is widely expressed in areas of the nervous system known to degenerate in Amyotrophic Lateral Sclerosis (ALS), including cerebral cortex, brainstem ...
  58. [58]
    Could VGF and/or its derived peptide act as biomarkers ... - Frontiers
    Dec 21, 2022 · The vgf gene produces a polypeptide of 615 amino acids in humans and 617 amino acids in rats and mice, with a secretory leader sequence of ...
  59. [59]
    The Expression of VGF is Reduced in Leukocytes of Depressed ...
    Mar 17, 2010 · The data of our study show that the expression of VGF is reduced in rodents under a condition that may enhance the susceptibility to depression ...
  60. [60]
    Reduced serum VGF levels are linked with suicide risk in Chinese ...
    May 12, 2020 · Reduced serum VGF levels are linked with suicide risk in Chinese Han patients with major depressive disorder ... expression in patients ...
  61. [61]
    VGF has Roles in the Pathogenesis of Major Depressive Disorder ...
    Apr 29, 2019 · In clinical studies, changes in the expression of VGF have been reported in patients with major depressive disorder and schizophrenia (Cattaneo ...
  62. [62]
    VGF‐Derived TLQP‐21 Ameliorates Tumor Progression, Pain, and ...
    Jul 14, 2025 · TLQP-21 ameliorates tumor progression, pain, and depression-like behaviors in an orthotopic mouse model of pancreatic ductal adenocarcinoma.<|control11|><|separator|>
  63. [63]
    N-Acetylcysteine-Capped TLQP21-Containing Au Nanocages ...
    The consumption of NAC further released TLQP21 from AuNCs to activate BDNF-VGF signaling, rectifying neurotrophic factor disorder in MDD. Our results suggested ...
  64. [64]
    Behavioral abnormalities with disruption of brain structure in mice ...
    Jul 5, 2017 · VGF may play roles in the regulation of synaptic plasticity, neurogenesis, and neurite growth in the brain. Patients with depression and bipolar ...Missing: postnatal | Show results with:postnatal<|control11|><|separator|>
  65. [65]
    Analysis of knockout mice suggests a role for VGF in the control of ...
    Oct 28, 2009 · We propose that VGF and/or VGF-derived peptides modulate sympathetic outflow pathways to regulate fat storage and energy expenditure.Vgf-/vgf- Mice Have Altered... · Vgf Immunoreactivity Can Be... · Vgf Knockout Mice Are...
  66. [66]
    VGF Peptide Profiles in Type 2 Diabetic Patients' Plasma ... - PubMed
    Nov 12, 2015 · To address the possible involvement of VGF peptides in obesity and diabetes, we studied type 2 diabetes (T2D) and obese patients, and high-fat diet induced ...Missing: polymorphisms cohorts<|separator|>
  67. [67]
    Identification and Evolutionary Analysis of Potential Candidate ...
    We conclude that some of the already identified variants in VGF from human polymorphism studies may contribute to eating disorders and obesity. ... VGF protein, ...