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VIP

♢ Research use only Spéc. au niveau de la classe ; lots sélectionnés testés par Janoshik

✓ Janoshik Verified 99.142%VIP · Report #233643 ↗
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VIP de qualité recherche. Spécification au niveau de la classe ≥98% ; lots sélectionnés testés de manière indépendante. Poudre lyophilisée en flacon de verre scellé. Uniquement à des fins de recherche en laboratoire. Ne convient pas à la consommation humaine.

Description

Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide originally discovered in porcine intestine in 1970. The name describes the initial pharmacological observation — it is vasoactive and found in the gut — but underrepresents the peptide’s biology. VIP is now understood as a pleiotropic neuromodulator with roles in the immune system, circadian rhythm regulation, reproductive function, and multiple neural circuits. It is found throughout the nervous system and peripheral organs.

VIP signals through two GPCRs: VPAC1 and VPAC2 (previously VIP1R and VIP2R). VPAC1 is expressed broadly including in lymphocytes, lung, intestine, and liver. VPAC2 is more restricted, with prominent expression in T-cells, the suprachiasmatic nucleus (the circadian clock), and several brain regions. In research models, VPAC receptor activation elevates cAMP and is studied for the downstream effects characteristic of VIP signaling: smooth muscle relaxation (including bronchodilation and vasodilation), neurotrophin production, anti-inflammatory cytokine shifts, and inhibition of T-cell proliferation. VIP is one of the most potent endogenous anti-inflammatory peptides studied.

Research interest in VIP has focused on: inflammatory pathways (VIP shifts immunity toward anti-inflammatory Th2/Treg phenotypes in research models), pulmonary vascular biology (bronchodilation, vasodilation), and circadian biology (VIP neurons in the suprachiasmatic nucleus are required for circadian rhythm generation and synchronization).

Specifications

Parameter Value
Compound Vasoactive Intestinal Peptide (VIP), 28 amino acids
Pureté ≥98% (class-level specification)
Format Lyophilized powder
Reconstitution Sterile water or saline
Conservation -20°C; 2-8°C after reconstitution, protect from light

Conservation

Store at -20°C and protect from light. Refrigerate at 2-8°C after reconstitution and use within 14 days. VIP is a relatively fragile peptide — minimize handling time and exposure to elevated temperature after reconstitution.

What are VIP’s main anti-inflammatory mechanisms?

In research models, VIP inhibits innate and adaptive immune responses through multiple mechanisms. It reduces macrophage and dendritic cell production of pro-inflammatory cytokines (TNF-alpha, IL-6, IL-12) while increasing anti-inflammatory cytokines (IL-10). In T-cells, VIP inhibits Th1 and Th17 differentiation (pro-inflammatory phenotypes) and promotes Treg and Th2 differentiation (anti-inflammatory phenotypes). It also inhibits NK cell cytotoxicity and reduces neutrophil function. These broad anti-inflammatory effects make VIP one of the most immunomodulatory peptides studied and have driven research interest in VIP and its receptor pathways in autoimmune-disease models.

How does VIP regulate circadian rhythms?

VIP is the primary neurotransmitter of the suprachiasmatic nucleus (SCN), the brain’s master circadian clock. VIP neurons in the SCN synchronize individual cellular clocks within the nucleus and are essential for maintaining coherent circadian oscillations across the network of clock cells. VPAC2 receptors on SCN neurons receive VIP signals to synchronize their molecular clock cycles. VIP also helps the SCN respond to light signals that reset the clock daily. Mice lacking VIP or VPAC2 lose circadian behavioral rhythms, demonstrating VIP’s essential role in circadian timekeeping.

What biology is being studied with VIP in research?

VIP has been investigated in research on pulmonary vascular biology (where vasodilation and anti-proliferative effects on pulmonary vasculature are relevant), intestinal inflammation, and autoimmune-related immune pathways. Inhaled VIP has been examined in pulmonary models with mixed results. The short half-life of native VIP (minutes) is a challenge for systemic study, and modified longer-acting VIP analogues are being characterized. In research contexts, the immunological and circadian biology applications are particularly active areas.

VIP is supplied for research purposes only. Not for human consumption. Handle in compliance with institutional biosafety guidelines.

ParamètreValeur
ComposéPeptide intestinal vasoactif (VIP), 28 acides aminés
Pureté≥98% (spécification au niveau de la classe)
FormatPoudre lyophilisée
ReconstitutionEau stérile ou solution saline
Conservation-20°C ; 2-8°C après reconstitution, protéger de la lumière

VIP

VIP · Result: 99.142% · Measured content: 9.80 mg (98% of label) · Report Code: I7YDCQMYJIJ8 · Test Date: 2026-09-18 · Lab: Janoshik Analytical

View independent report #233643 ↗

Follow the storage conditions on the product label and its published documentation. Handle only in an appropriately equipped laboratory.

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Qui teste réellement ce produit ?

Les lots sélectionnés sont vérifiés de manière indépendante par Janoshik Analytical (République tchèque) et publiés sur le portail public de Janoshik. Les autres lots sont expédiés avec la spécification de lot du fournisseur. Consultez /coa pour le mur publié.

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D'où le produit est-il expédié ?

Roumanie (UE). Nous sommes CERTALAB SRL, CUI 54169956, immatriculée à la TVA. Sameday pour la Roumanie, GLS pour la plupart des destinations de l'UE, TCE Worldwide pour les autres marchés transfrontaliers de l'UE et hors UE (Royaume-Uni, Suisse). Livraison sous 1–15 jours ouvrés selon la destination — le délai exact est indiqué lors du passage à la caisse.

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Et en cas de problème ?

Vous disposez d'un droit de rétractation de 14 jours en vertu de l'OUG 34/2014 (droit de la consommation roumain/UE), avec possibilité de recours auprès de l'ANPC et de règlement extrajudiciaire des litiges (SAL). Contactez-nous à support@chinapeptideshop.com.

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Informations sur le produit

Ce produit est destiné uniquement à des fins de recherche et de développement scientifiques. Il s'agit d'une substance chimique qui ne doit pas être utilisée comme médicament, produit thérapeutique, substance active ou ingrédient dans un quelconque produit destiné à la consommation humaine ou animale. Les chercheurs doivent manipuler ce composé conformément aux directives de biosécurité de leur établissement. À utiliser uniquement dans des environnements de laboratoire correctement équipés, avec un équipement de protection individuelle approprié.

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