The SHP-1 protein encoded by the Ptpn6 gene has been extensively studied in hematopoietic cells in the context of inflammation.A point mutation in this gene(Ptpn6spin)causes spontaneous inflammation in mice,which has ...The SHP-1 protein encoded by the Ptpn6 gene has been extensively studied in hematopoietic cells in the context of inflammation.A point mutation in this gene(Ptpn6spin)causes spontaneous inflammation in mice,which has a striking similarity to neutrophilic dermatoses in humans.Recent findings highlighted the role of signaling adapters and kinases in promoting inflammation in Ptpn6spin mice;however,the underlying transcriptional regulation is poorly understood.Here,we report that SYK is important for driving neutrophil infiltration and initiating wound healing responses in Ptpn6spin mice.Moreover,we found that deletion of the transcription factor Ets2 in myeloid cells ameliorates cutaneous inflammatory disease in Ptpn6spin mice through transcriptional regulation of its target inflammatory genes.Furthermore,Ets-2 drives IL-1α-mediated inflammatory signaling in neutrophils of Ptpn6spin mice.Overall,in addition to its well-known role in driving inflammation in cancer,Ets-2 plays a major role in regulating IL-1α-driven Ptpn6spin-mediated neutrophilic dermatoses.展开更多
目的:探讨非受体型蛋白酪氨酸磷酸酶6(non-receptor protein tyrosine phosphatase 6,PTPN6)基因在不同食管鳞状细胞癌细胞株中的表达及其对Eca109、Yes-2细胞恶性生物学行为的影响。方法:应用qPCR法检测不同食管鳞癌细胞株(TE1、Eca109...目的:探讨非受体型蛋白酪氨酸磷酸酶6(non-receptor protein tyrosine phosphatase 6,PTPN6)基因在不同食管鳞状细胞癌细胞株中的表达及其对Eca109、Yes-2细胞恶性生物学行为的影响。方法:应用qPCR法检测不同食管鳞癌细胞株(TE1、Eca109、Kyse150、Kyse170、Yes-2)中PTPN6 m RNA的表达水平,以pcDNA3.1-PTPN6质粒分别瞬时转染食管鳞癌细胞株Eca109和Yes-2,应用qPCR和Wb法检测PTPN6 m RNA和蛋白的表达水平,并应用MTS、克隆形成实验、划痕实验和Transwell法检测过表达PTPN6基因对食管鳞癌细胞恶性生物学行为的影响。结果:PTPN6基因在5种食管鳞癌细胞侏中表达均明显下调(均P<0.05)。与转染空载体的对照组相比,经pcDNA3.1-PTPN6转染后,Eca109和Yes-2细胞均高水平表达PTPN6(P<0.05或P<0.01);过表达PTPN6基因后,Eca109和Yes-2细胞的增殖、迁移和侵袭能力均明显被抑制(均P<0.05)。结论:PTPN6基因高表达能抑制食管鳞癌细胞的增殖、迁移和侵袭,其可能是影响食管鳞癌细胞生物学特性的一个重要因素。展开更多
基金supported by the K22 NIAID Career Transition Award Al 127836 to P.G.,the National Institutes of Health grants CAI 63507,AR056296,Al 124346 and AI101935 and by the American Lebanese Syrian Associated Charities to T.-D.K。
文摘The SHP-1 protein encoded by the Ptpn6 gene has been extensively studied in hematopoietic cells in the context of inflammation.A point mutation in this gene(Ptpn6spin)causes spontaneous inflammation in mice,which has a striking similarity to neutrophilic dermatoses in humans.Recent findings highlighted the role of signaling adapters and kinases in promoting inflammation in Ptpn6spin mice;however,the underlying transcriptional regulation is poorly understood.Here,we report that SYK is important for driving neutrophil infiltration and initiating wound healing responses in Ptpn6spin mice.Moreover,we found that deletion of the transcription factor Ets2 in myeloid cells ameliorates cutaneous inflammatory disease in Ptpn6spin mice through transcriptional regulation of its target inflammatory genes.Furthermore,Ets-2 drives IL-1α-mediated inflammatory signaling in neutrophils of Ptpn6spin mice.Overall,in addition to its well-known role in driving inflammation in cancer,Ets-2 plays a major role in regulating IL-1α-driven Ptpn6spin-mediated neutrophilic dermatoses.
文摘目的:探讨非受体型蛋白酪氨酸磷酸酶6(non-receptor protein tyrosine phosphatase 6,PTPN6)基因在不同食管鳞状细胞癌细胞株中的表达及其对Eca109、Yes-2细胞恶性生物学行为的影响。方法:应用qPCR法检测不同食管鳞癌细胞株(TE1、Eca109、Kyse150、Kyse170、Yes-2)中PTPN6 m RNA的表达水平,以pcDNA3.1-PTPN6质粒分别瞬时转染食管鳞癌细胞株Eca109和Yes-2,应用qPCR和Wb法检测PTPN6 m RNA和蛋白的表达水平,并应用MTS、克隆形成实验、划痕实验和Transwell法检测过表达PTPN6基因对食管鳞癌细胞恶性生物学行为的影响。结果:PTPN6基因在5种食管鳞癌细胞侏中表达均明显下调(均P<0.05)。与转染空载体的对照组相比,经pcDNA3.1-PTPN6转染后,Eca109和Yes-2细胞均高水平表达PTPN6(P<0.05或P<0.01);过表达PTPN6基因后,Eca109和Yes-2细胞的增殖、迁移和侵袭能力均明显被抑制(均P<0.05)。结论:PTPN6基因高表达能抑制食管鳞癌细胞的增殖、迁移和侵袭,其可能是影响食管鳞癌细胞生物学特性的一个重要因素。
