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NRP1

神經纖毛蛋白(Neuropilin-1,簡稱NRP1)是一種單次跨膜、非酪氨酸激酶表面糖蛋白。NRP1最初被發現作為正常胚胎發育、軸突引導和血管形成所必需的神經元和內皮細胞受體,也在參與關鍵免疫功能的多種免疫細胞類型中表達。現有的研究表明,NRP1在癌癥患者的調節性T細胞中升高,提示其可能是癌癥免疫治療的靶點。在COVID-19研究中,人們發現NRP1能夠與S蛋白結合增強新冠病毒的感染能力。通過單抗對NRP1進行阻斷,實驗結果證明,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合,如信號素3A(Sema3A)、生長因子VEGF1、轉化生長因子β、血小板衍生生長因子C和D、和C-Met等等。越來越多的文獻表明,NRP1是癌癥免疫治療中一種獨特的免疫調節劑。在TME中,NRP1內在地調節Treg細胞和CD8+T細胞功能,共同阻礙抗腫瘤免疫。因此,NRP1在腫瘤中作為一個關鍵的免疫調節劑具有誘人的開發前景。

Recombinant Human NRP1 活性蛋白實驗驗證數據

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)