Peptídeos

This anti-microbial peptide (AMP) has been shown to cause lysis of several human cancer cell lines. Macropin-2 is most potent against CCRF-CEM T lymphoblastoid (human acute lymphoblastic leukemia) cells. At higher concentrations Macropin-2 also causes lysis of human umbilical vein endothelial cells (HUVEC), rat intestinal epithelial cells (IEC), human cervix carcinoma (HeLa) cells and human colon adenocarcinoma (SW480). Macropin-1 is also available in our catalogue.

Broad-spectrum antibacterial, active against multidrug-resistant Gram-negative bacteria. Acts though permeabilizing the bacterial membrane and also shows anti-inflammatory activity via a TLR4-mediated NF-KB signaling pathway. Significantly improves survival in a mouse sepsis model.

Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool

Vasoactive intestinal peptide (VIP) is a neuropeptide found throughout the body and the central nervous system (CNS). VIP is located within cell bodies and nerve endings of the enteric nervous system, brain and pancreas. VIP neurons in the peripheral system fire to regulate blood vessels, and the  CNS innervate cerebral vasculature. VIP  binds to G protein-coupled receptors VPAC1 and VPAC2. VIP and VPAC2 are detected in circular smooth muscle cells of cerebral arterioles. VIP and VPAC1 are also found in lymphatic tissue. VIP can block inflammation, modify the Th response favouring Th2 and induce regulatory T cells. Overexpression of each receptor has been linked to various cancers.VIP administration leads to pancreatic bicarbonate-rich fluid secretion but not to the same degree stimulated by secretin. VIP stimulates insulin secretion in a glucose-dependent manner and also stimulates glucagon secretion. Studies have found that in morbidly obese patients, VIP levels are lowered and work to slow gastric and duodenal motility but increase gastric emptying. Therefore, decreasing VIP levels in obese patients may increase weight gain by accelerating gastric emptying.VIP has been well studied in pancreatic acini. VIP is a full agonist of amylase secretion and increases cyclic AMP synchronised with an increase in intracellular Ca2+ triggered by stimuli that act through cholecystokinin (CCK) or cholinergic agonists. Most cAMP increases, and amylase secretion appear to be mediated via VPAC1.The discovery of VPAC antagonists can help to understand VIPs roles and may also provide new therapies in VIP dysregulated systems such as cancers. VIP (6-28) is a specific competitive inhibitor of the VIP receptor derived from VIP. VIP-induced vasodilatation was blocked by co-administration of the VIP receptor antagonist VIP (6-28). Using a VIP receptor antagonist has made VIP function easier to study during neuronal injury, inflammation, and heart innervation. The VIP receptor antagonist is being considered for osteoarthritis treatment, an area with no current treatments other than analgesics.

Peptide H-GLDWIGIMSPVDSDIR^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.

LL-37 is a member of the large cationic family of anti-microbial peptides called cathelicidins which have broad-spectrum anti-microbial activity and are expressed in many species. The only cathelicidin found in humans is LL-37, this is produced in epithelial cells, by proteolytic cleavage from the C-terminal of the hCAP-18 protein. LL-37 can be processed into different forms of anti-microbial peptides. As well as its anti-microbial properties LL-37 also regulates many aspects of the innate immune system and overexpression of LL-37 has been linked to autoimmune diseases such as asthma and psoriasis, making LL-37 the most studied form of the human cathelicidin peptides.More recently, studies have shown that LL-37 binds to SARS-CoV-2 S protein and inhibits binding to its receptor hACE2, which may inhibit viral entry into the cell. LL-37 is upregulated by vitamin D, therefore this may be one mode of action for the positive outcomes seen with vitamin D treatment for Covid-19.

Poly-L-Lysine Hydrobromide is a neurotrophic factor that is used to stimulate nerve growth in the peripheral nervous system. It has been shown to increase the production of nerve growth factor, which is important for neuronal development and regeneration. Poly-L-Lysine Hydrobromide also has biological properties against human erythrocytes, enabling it to bind to the erythrocyte membrane and subsequently cause hemolysis. This process is mediated by Toll-like receptors. The active form of this drug has been shown to have antiviral activity against HIV and other viruses in transfection experiments using cells from mice, as well as an ability to inhibit replication of herpes simplex virus type 1 (HSV-1) in a model system consisting of rat neurons grown on a polymer substrate. Poly-L-Lysine Hydrobromide can be cleaved into smaller pieces by enzymes such as DNase I or terminal transferases, forming polymers

Abz-Ala-Gly-Leu-Ala-p-Nitro-Benzyl-Amide is an enzyme inhibitor that is used to treat cancer. It is a potent and selective inhibitor of neutral endopeptidase, which is an enzyme involved in the process of inflammation. Abz-Ala-Gly-Leu-Ala-p-Nitro-Benzyl Amide can be used to inhibit the interaction between gram negative bacteria and human cells, and has been shown to have antimicrobial properties against Pseudomonas aeruginosa. This compound may also be able to modulate metalloendopeptidases, which are resistant to endopeptidases.