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NRP1

神經(jīng)纖毛蛋白(Neuropilin-1,簡(jiǎn)稱NRP1)是一種單次跨膜、非酪氨酸激酶表面糖蛋白。NRP1最初被發(fā)現(xiàn)作為正常胚胎發(fā)育、軸突引導(dǎo)和血管形成所必需的神經(jīng)元和內(nèi)皮細(xì)胞受體,也在參與關(guān)鍵免疫功能的多種免疫細(xì)胞類型中表達(dá)?,F(xiàn)有的研究表明,NRP1在癌癥患者的調(diào)節(jié)性T細(xì)胞中升高,提示其可能是癌癥免疫治療的靶點(diǎn)。在COVID-19研究中,人們發(fā)現(xiàn)NRP1能夠與S蛋白結(jié)合增強(qiáng)新冠病毒的感染能力。通過(guò)單抗對(duì)NRP1進(jìn)行阻斷,實(shí)驗(yàn)結(jié)果證明,新冠病毒的感染性得到明顯下降。另外,NRP1能夠與廣泛的配體結(jié)合,如信號(hào)素3A(Sema3A)、生長(zhǎng)因子VEGF1、轉(zhuǎn)化生長(zhǎng)因子β、血小板衍生生長(zhǎng)因子C和D、和C-Met等等。越來(lái)越多的文獻(xiàn)表明,NRP1是癌癥免疫治療中一種獨(dú)特的免疫調(diào)節(jié)劑。在TME中,NRP1內(nèi)在地調(diào)節(jié)Treg細(xì)胞和CD8+T細(xì)胞功能,共同阻礙抗腫瘤免疫。因此,NRP1在腫瘤中作為一個(gè)關(guān)鍵的免疫調(diào)節(jié)劑具有誘人的開(kāi)發(fā)前景。

Recombinant Human NRP1 活性蛋白實(shí)驗(yàn)驗(yàn)證數(shù)據(jù)

High Purity Validated by SDS-PAGE

(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

Excellent Bioactivity Validated by Functional ELISA

Measured by its binding ability in a functional ELISA. Immobilized human VEGF165 (CSB-MP025833HU(F4)) at 2 μg/ml can bind human NRP1, the EC50 is 22.68-34.55 ng/ml.

NRP1 Antibodies

NRP1 for Homo sapiens (Human)

NRP1 Proteins

NRP1 Proteins for Gallus gallus (Chicken)

NRP1 Proteins for Mus musculus (Mouse)

NRP1 Proteins for Xenopus laevis (African clawed frog)

NRP1 Proteins for Homo sapiens (Human)

NRP1 Proteins for Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)

NRP1 Proteins for Rattus norvegicus (Rat)