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PVR

脊髓灰質(zhì)炎病毒受體(poliovirus receptor,PVR)也稱CD155或Necl-5,是一種細(xì)胞黏附分子,屬于連接蛋白樣分子家族。CD155可在活化的NK細(xì)胞、CD4+和CD8+T細(xì)胞以及T-reg細(xì)胞上表達(dá)。在功能上,CD155與Nectin-3共同位于細(xì)胞連接處,兩者相互作用,共同調(diào)控細(xì)胞粘附和遷移。此外,CD155與T細(xì)胞或NK細(xì)胞表面共刺激分子CD226結(jié)合后,激活這些免疫細(xì)胞,可提高細(xì)胞因子分泌及對腫瘤細(xì)胞的殺傷能力。然而,當(dāng)腫瘤表面高表達(dá)的CD155一旦與NK和T細(xì)胞表面的TIGIT結(jié)合,它們對腫瘤細(xì)胞的殺傷作用就會被抑制。CD155在正常組織表達(dá)較少,但在多種惡性腫瘤組織中高表達(dá),包括結(jié)腸癌、肺癌、黑色素瘤、胰腺癌及膠質(zhì)母細(xì)胞瘤等等。大量研究表明,CD155可作為反映腫瘤進(jìn)展及預(yù)后的生物標(biāo)記分子。

Recombinant Human PVR 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.

Activity Validated by FACS assay

FACS assay shows that Human PVR can bind to HEK293F cell overexpressing human TIGIT.

PVR Antibodies

PVR for Homo sapiens (Human)

PVR Proteins

PVR Proteins for Homo sapiens (Human)

PVR Proteins for Chlorocebus aethiops (Green monkey) (Cercopithecus aethiops)

PVR ELISA Kit

PVR ELISA Kit for Homo sapiens (Human)