Immune research
VIP / Vasoactive Intestinal Peptide
Lyophilized immune-signaling research peptide for pathway review
VIP / Vasoactive Intestinal Peptide is a neuroimmune signaling peptide studied around VPAC receptors, smooth-muscle signaling, and epithelial models.
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Get catalog updates仅供实验室研究使用。不适用于人类或兽医用途。并非旨在诊断、治疗、治愈、减轻或预防疾病。
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研究背景
VIP / Vasoactive Intestinal Peptide 研究资料
Vasoactive intestinal peptide is a 28-amino-acid neuropeptide studied through the VPAC1 and VPAC2 receptors and cyclic-AMP signaling. Research spans smooth-muscle response, vascular signaling, epithelial and barrier function, neuroimmune communication, cytokine regulation, airway models, and gastrointestinal physiology. VIP is a short-lived signaling peptide, so stability, assay timing, receptor expression, and delivery conditions strongly influence experimental results. It is selected when a project requires a native VPAC-receptor ligand rather than a general immune or vascular peptide. Its broad physiological literature provides mechanism context but should not be converted into disease, treatment, or personal-use claims for a catalog material.
Molecular class
Native 28-residue neuropeptide
Sequence / composition
- H
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- D
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- V
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- D
- N
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- R
- L
- R
- K
- Q
- M
- A
- V
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- K
- Y
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- N
Defined amino-acid chain, shown in standard one-letter notation.
Research design note
Rapid enzymatic degradation and broad receptor distribution are central constraints in VIP experiments.
拟议机制
Binds VPAC1 and VPAC2 receptors, activating Gs and cyclic AMP. Depending on tissue, this can produce smooth-muscle relaxation, vasodilation, altered epithelial secretion, and modulation of immune-cell cytokine signaling.
研究中报告的作用
- Cell and animal studies report bronchodilatory, vasodilatory, epithelial, neuroprotective, and anti-inflammatory effects in selected models.
- Human physiology studies report vasodilation, changes in blood pressure or heart rate, flushing, and gastrointestinal or airway effects.
- VIP is rapidly degraded and has broad receptor distribution, making exposure, stability, and systemic effects difficult to control.
常见研究终点
VPAC1 and VPAC2 potency, cyclic AMP, vascular tone, airway or intestinal smooth muscle, epithelial secretion, cytokines, barrier function, blood pressure, heart rate, and peptide stability.
证据与局限
Physiology and receptor mechanisms are well characterized, but short half-life and broad systemic actions limit translation of model results.
External reading
Literature for context—not product proof.
Third-party sources describe their own research materials and methods. They do not validate a specific Azure catalog batch.
Support and documentation
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