defensin, a 1

Defensin HNP-1 human TFA，一种人中性粒细胞肽(HNPs)，在早期动脉粥样硬化发展中涉及内皮细胞功能障碍。该化合物展现出广泛的抗菌及抗利什曼原虫活性。

Beta-defensin 1, pig TFA 是一种在猪舌黏膜中主要发现的抗菌肽，对多种细菌如大肠杆菌、鼠伤寒沙门氏菌、单核细胞增生性李斯特菌、金黄色葡萄球菌、百日咳博德特氏菌和白色念珠菌等显示出抗菌活性。

Beta-defensin 103 isoform X1, pig 是一种抗菌肽、在多种生物体内被发现，参与了先天性免疫防线。

Human β-defensin-1 (HβD-1) is a cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by epithelial surfaces, circulatory cells, and cells of the reproductive tract. It exhibits antimicrobial activity against a wide range of sperm bacteria.

Beta-defensin 103 isoform X1, pig TFA 是一种抗菌肽、在多种生物体内被发现，参与了先天性免疫防线。

β-Defensin-1 is a peptide with antimicrobial properties that protects the skin and mucosal membranes of the respiratory, genitourinary, and gastrointestinal tracts.1It inhibits the growth ofB. adolescentis,L. acidophilus,B. breve,B. vulgatus,L. fermentum,B. longum, andS. thermophilusin an antimicrobial radial diffusion assay.2β-Defensin-1 also inhibits the growth of periodontopathogenic and cariogenic bacteria, includingP. gingivalisandS. salivarius, and of susceptibleM. tuberculosisH37Rv but not of resistantM. tuberculosisRM22 when used at a concentration of 128 μg/ml.3,4It blocks human and mouse Kv1.3 voltage-gated potassium channels (IC50s = 11.8 and 13.2 μM, respectively).5Overexpression of β-defensin-1 in the human oral squamous cell carcinoma (OSCC) cell lines HSC-3, UM-1, and SCC-9 increases migration and invasion but not proliferation.6 1.Lehrer, R.I.Primate defensinsNat. Rev. Microbiol.2(9)727-738(2004) 2.Schroeder, B.O., Ehmann, D., Precht, J.C., et al.Paneth cell α-defensin 6 (HD-6) is an antimicrobial peptideMucosal Immunol.8(3)661-671(2015) 3.Ouhara, K., Komatsuzawa, H., Yamada, S., et al.Susceptibilities of periodontopathogenic and cariogenic bacteria to antibacterial peptides, β-defensins and LL37, produced by human epithelial cellsJ. Antimicrob. Chemother.55(6)888-896(2005) 4.Fattorini, L., Gennaro, R., Zanetti, M., et al.In vitro activity of protegrin-1 and beta-defensin-1, alone and in combination with isoniazid, against Mycobacterium tuberculosisPeptides25(7)1075-1077(2004) 5.Feng, J., Xie, Z., Yang, W., et al.Human beta-defensin 1, a new animal toxin-like blocker of potassium channelToxicon113(2016) 6.Han, Q., Wang, R., Sun, C., et al.Human beta-defensin-1 suppresses tumor migration and invasion and is an independent predictor for survival of oral squamous cell carcinoma patientsPLoS One9(3)e91867(2014)

Defensin HNP-1 human is a Human neutrophil peptides (HNPs), involved in endothelial cell dysfunction at the time of early atherosclerotic development.Defensin HNP-1 human can regulate the growth of atherosclerosis.

Beta-defensin 1, pig 是一种在猪舌黏膜中主要发现的抗菌肽，对包括大肠杆菌、鼠伤寒沙门氏菌、单核细胞增生性李斯特菌、金黄色葡萄球菌、百日咳博德特氏菌和白色念珠菌在内的多种细菌显示出活性。

Defensin HNP-3 is a peptide secreted by human polymorphonuclear leukocytes (PMNs) that has antimicrobial properties. It induces lysis of mammalian cells when used at a concentration of 25 μg mL. It also inhibits growth of E. faecalis (ED50 = 100 nM) and clinical isolates of P. aeruginosa (MIC90 = 4 μM). HNP-3 binds to recombinant HIV-1 envelope glycoprotein (gp120) and human CD4 (Kds = 52.8 and 34.9 nM, respectively). It also binds to recombinant, immobilized human surfactant protein D (SP-D; Kd = 55.7 nM) and inhibits focus formation in Madin-Darby canine kidney (MDCK) cells infected with influenza A virus (IAV).

β-Defensin-2 is a peptide with antimicrobial properties that protects the skin and mucosal membranes of the respiratory, genitourinary, and gastrointestinal tracts.1It inhibits the growth of periodontopathogenic and cariogenic bacteria, includingP. gingivalisandS. salivarius.2β-Defensin-2 (30 μg/ml) stimulates gene expression and production of IL-6, IL-10, CXCL10, CCL2, MIP-3α, and RANTES by keratinocytes.3It also stimulates calcium mobilization, migration, and proliferation of keratinocytes when used at concentrations of 30, 10, and 40 μg/ml, respectively. β-Defensin-2 induces IL-31 production by human peripheral blood-derived mast cellsin vitrowhen used at a concentration of 10 μg/ml and by rat mast cellsin vivofollowing a 500 ng intradermal dose.4Expression of β-defensin-2 is increased in psoriatic skin and chronic wounds.5,6 1.Lehrer, R.I.Primate defensinsNat. Rev. Microbiol.2(9)727-738(2004) 2.Ouhara, K., Komatsuzawa, H., Yamada, S., et al.Susceptibilities of periodontopathogenic and cariogenic bacteria to antibacterial peptides, β-defensins and LL37, produced by human epithelial cellsJ. Antimicrob. Chemother.55(6)888-896(2005) 3.Niyonsaba, F., Ushio, H., Nakano, N., et al.Antimicrobial peptides human β-defensins stimulate epidermal keratinocyte migration, proliferation and production of proinflammatory cytokines and chemokinesJ. Invest. Dermatol.127(3)594-604(2007) 4.Niyonsaba, F., Ushio, H., Hara, M., et al.Antimicrobial peptides human β-defensins and cathelicidin LL-37 induce the secretion of a pruritogenic cytokine IL-31 by human mast cellsJ. Immunol.184(7)3526-3534(2010) 5.Huh, W.-K., Oono, T., Shirafuji, Y., et al.Dynamic alteration of human β-defensin 2 localization from cytoplasm to intercellular space in psoriatic skinJ. Mol. Med. (Berl.)80(10)678-684(2002) 6.Butmarc, J., Yufit, T., Carson, P., et al.Human β-defensin-2 expression is increased in chronic woundsWound Repair Regen.12(4)439-443(2004)

Defensin NP-3A (NP-3A; Corticostatin 1) 是一种人粒细胞肽，具有抗 ACTH 活性。防御素是一种具有杀伤活性的抗菌肽。

Human α-Defensin 6，含32个半胱氨酸残基的抗菌肽，能够阻止细菌入侵，促进粘膜免疫。该肽通过自组装形成有序的原纤维和纳米网，能随机结合细菌表面蛋白，进而围绕并缠绕细菌。此外，Human α-Defensin 6抑制C. albicans生物膜的形成。

Retrocyclin-1是一种θ防御素，具有识别并结合含碳水化合物表面分子的能力，能够保护细胞抵御HIV-1感染。该化合物对胎球蛋白、gp120（Kd=35.4 nM）、CD4（Kd=31 nM）以及半乳糖神经酰胺（Kd=24.1 nM）展现出高度亲和性。

Defensin HNP-3 human 是一种具有抑制金黄色葡萄球菌、铜绿假单胞菌和大肠杆菌活性的细胞毒性抗生素肽。该肽原先以94个氨基酸的preproHNP(1-94)形式合成，随后水解为proHNP(20-94)，最终通过去除阴离子前体转化为成熟形式的HNP(65-94)。

Brilacidin tetrahydrochloride (PMX 30063 tetrahydrochloride) is a defensin mimetic antibiotic compound, exhibiting potent anti-infective antimicrobial activity against a range of bacteria. It demonstrates MIC90 values of 1 μg mL and 8 μg mL against the Gram-positive bacteria Streptococcus pneumoniae and Streptococcus viridans, respectively. Additionally, it has a MIC90 value of 8 μg mL for the Gram-negative bacteria Haemophilus influenzae and a MIC90 value of 4 μg mL for Pseudomonas aeruginosa.

ROAD-1是一种α-防御素，源于恒河猴口腔粘膜。该化合物展现出对金黄色葡萄球菌、大肠杆菌和白色念珠菌的抗菌活性。