AIM: To research the two homologous predicted proline -rich protein genes, Mus musculus predicted gene 4736 (MP4) and proline-rich protein BstNI subfamily 1 (Prb1) which were significantly upregulated in cultured corn...AIM: To research the two homologous predicted proline -rich protein genes, Mus musculus predicted gene 4736 (MP4) and proline-rich protein BstNI subfamily 1 (Prb1) which were significantly upregulated in cultured corneal organs when encountering fungal pathogen preparations. This study was to confirm the expression and potential functions of these two genes in ocular surface. METHODS: A Pseudomonas aeruginosa keratitis model was established in Balb/c mice. One day post infection, mRNA level of MP4 was measured using real-time polymerase chain reaction (PCR), and MP4 protein detected by immunohistochemistry (IHC) or Western blot using a customized polyclonal anti -MP4 antibody preparation. Lacrimal glands from normal mice were also subjected to IHC staining for MP4. An online bioinformatics program, BioGPS, was utilized to screen public data to determine other potential locations of MP4. RESULTS: One day after keratitis induction, MP4 was upregulated in the corneas at both mRNA level as measured using real -time PCR and protein levels as measured using Western blot and IHC. BioGPS analysis of public data suggested that the MP4 gene was most abundantly expressed in the lacrimal glands, and IHC revealed that normal murine lacrimal glands were positive for MP4 staining. CONCLUSION: MP4 and Prb1 are closely related with the physiology and pathological processes of the ocular surface. Considering the significance of ocular surface abnormalities like dry eye, we propose that MP4 and Prb1 contribute to homeostasis of ocular surface, and deserve more extensive functional and disease correlation studies.展开更多
目的:采用嵌合抗原受体(CAR)T细胞技术将肿瘤免疫检查点抑制剂序列(MEDI4736)整合至CART细胞,构建一种新的抗PD-L1的CART(αPDL1-CART)细胞,并探索αPDL1-CART细胞的作用机制。方法:共培养结合实验检测αPDL1-CAR的结合性,流式细胞术分...目的:采用嵌合抗原受体(CAR)T细胞技术将肿瘤免疫检查点抑制剂序列(MEDI4736)整合至CART细胞,构建一种新的抗PD-L1的CART(αPDL1-CART)细胞,并探索αPDL1-CART细胞的作用机制。方法:共培养结合实验检测αPDL1-CAR的结合性,流式细胞术分析αPDL1-CART细胞表达,细胞毒性实验检测αPDL1-CART细胞杀伤性。结果:αPDL1-K562细胞可特异性结合PDL1-K562细胞,阳性表达率为(48.9±13.9)%;与T vs K562组、T vs PDL1-K562组和αPDL1-CART vs K562组相比,αPDL1-CART vs PDL1-K562组αPDL1-CART细胞可显著减少PDL1-K562细胞数[(2 136.9±766.1)个,P<0.05]。结论:αPDL1-CART细胞可特异性结合和杀伤PDL1-K562细胞,将进一步促进CART细胞与免疫检测点结合研究。展开更多
基金Supported by National Natural Science Foundation of China(No.81271050)
文摘AIM: To research the two homologous predicted proline -rich protein genes, Mus musculus predicted gene 4736 (MP4) and proline-rich protein BstNI subfamily 1 (Prb1) which were significantly upregulated in cultured corneal organs when encountering fungal pathogen preparations. This study was to confirm the expression and potential functions of these two genes in ocular surface. METHODS: A Pseudomonas aeruginosa keratitis model was established in Balb/c mice. One day post infection, mRNA level of MP4 was measured using real-time polymerase chain reaction (PCR), and MP4 protein detected by immunohistochemistry (IHC) or Western blot using a customized polyclonal anti -MP4 antibody preparation. Lacrimal glands from normal mice were also subjected to IHC staining for MP4. An online bioinformatics program, BioGPS, was utilized to screen public data to determine other potential locations of MP4. RESULTS: One day after keratitis induction, MP4 was upregulated in the corneas at both mRNA level as measured using real -time PCR and protein levels as measured using Western blot and IHC. BioGPS analysis of public data suggested that the MP4 gene was most abundantly expressed in the lacrimal glands, and IHC revealed that normal murine lacrimal glands were positive for MP4 staining. CONCLUSION: MP4 and Prb1 are closely related with the physiology and pathological processes of the ocular surface. Considering the significance of ocular surface abnormalities like dry eye, we propose that MP4 and Prb1 contribute to homeostasis of ocular surface, and deserve more extensive functional and disease correlation studies.
文摘目的:采用嵌合抗原受体(CAR)T细胞技术将肿瘤免疫检查点抑制剂序列(MEDI4736)整合至CART细胞,构建一种新的抗PD-L1的CART(αPDL1-CART)细胞,并探索αPDL1-CART细胞的作用机制。方法:共培养结合实验检测αPDL1-CAR的结合性,流式细胞术分析αPDL1-CART细胞表达,细胞毒性实验检测αPDL1-CART细胞杀伤性。结果:αPDL1-K562细胞可特异性结合PDL1-K562细胞,阳性表达率为(48.9±13.9)%;与T vs K562组、T vs PDL1-K562组和αPDL1-CART vs K562组相比,αPDL1-CART vs PDL1-K562组αPDL1-CART细胞可显著减少PDL1-K562细胞数[(2 136.9±766.1)个,P<0.05]。结论:αPDL1-CART细胞可特异性结合和杀伤PDL1-K562细胞,将进一步促进CART细胞与免疫检测点结合研究。
