The endoplasmic reticulum plays an extremely important role in the process of cellular protein secretion.The cyclic AMP-responsive element-binding protein 3(CREB3)transcription factor family is closely associated with...The endoplasmic reticulum plays an extremely important role in the process of cellular protein secretion.The cyclic AMP-responsive element-binding protein 3(CREB3)transcription factor family is closely associated with the secretion and transport of proteins within the endoplasmic reticulum.As a member of the CREB3 transcription factor family,cyclic AMP-responsive element-binding protein 3-like protein 2(CREB3L2)stands out as a non-classical sensor within the endoplasmic reticulum.CREB3L2 can detect and regulate endoplasmic reticulum pressure,exert control over the processes of protein transport and secretion,participate in the development of tumor cells,and is also closely linked to the development of certain human tissues and organs.This article aims to review the role of CREB3L2 in tissue development and disease,shedding light on the related mechanisms of CREB3L2 in cancer development.The goal is to provide insights and directions for further analysis of CREB3L2.展开更多
目的探讨钾双孔域通道亚家族K成员1(potassium two pore domain channel subfamily K member 1,KCNK1)在肺癌中的功能及其作用机制。方法利用TCGA数据分析KCNK1在肺癌组织中的表达水平,在H1299和H1975中用克隆形成实验检测KCNK1基因敲...目的探讨钾双孔域通道亚家族K成员1(potassium two pore domain channel subfamily K member 1,KCNK1)在肺癌中的功能及其作用机制。方法利用TCGA数据分析KCNK1在肺癌组织中的表达水平,在H1299和H1975中用克隆形成实验检测KCNK1基因敲减后对肺腺癌细胞增殖的影响,探讨KCNK1在肺腺癌细胞增殖中的作用,并用CCK8等细胞增殖、转移实验进一步验证其功能;将KCNK1干扰后,用Western blot和qPCR实验检测下游通路基因以分析KCNK1基因可能的作用机制。结果KCNK1基因在肺癌组织与癌旁组织相比表达显著升高(P<0.05),且KCNK1敲减后抑制细胞增殖和转移;干扰KCNK1可以抑制CREB3及靶基因的表达水平。结论KCNK1基因在肺癌的恶性进展中起重要的作用,该作用通过调控环磷酸腺苷反应元件结合蛋白3(CREB3)机制进行,KCNK1基因是肺癌新的潜在分子诊断指标及靶点。展开更多
Introduction: Hyalinizing spindle cell tumor with giant rosettes (HSCT) is a very uncommon mesenchymal tumor that has similar morphological and biological features to the low-grade fibromyxoid sarcoma (LGFMS). Case Re...Introduction: Hyalinizing spindle cell tumor with giant rosettes (HSCT) is a very uncommon mesenchymal tumor that has similar morphological and biological features to the low-grade fibromyxoid sarcoma (LGFMS). Case Report: Reported herein is a case of primary tumour of buttock HSCT that had rare FUS-CREB3L1 fusion transcripts, a product of characteristic chromosomal abnormality t (7;16) (q33;p11) of HSCT and LGFMS. The patient was a 48-year-old man who had a large solitary mass in the buttock. Histologically, it was composed of bland spindle cells with variable cellularity deposited in a densely hyalinized stroma alternating with myxoid areas. Characteristic collagen rosettes were scattered in the cellular areas. Reverse transcription-polymerase chain reaction (RT-PCR) assay using formalin-fixed, paraffin-embedded tissue detected FUS-CREB3L1 fusion transcripts. In our knowledge is the second case may display a variant FUS/CREB3L1 fusion transcript in international literature. Conclusion: LGFMS and HSCT probably have a wider spectrum of morphologic features than previously thought, the awareness of which will help pathologists to avoid diagnostic pitfalls. Demonstration of the t (7;16) translocation will help to diagnose difficult cases with unusual histologic features.展开更多
This study was to determine the protective effect of ω-3 polyunsaturated fatty acids（ω-3PUFAs） on MK-801-induced cognitive impairment in schizophrenia（SZ） rats and the underlying mechanism. A rat model of schizo...This study was to determine the protective effect of ω-3 polyunsaturated fatty acids（ω-3PUFAs） on MK-801-induced cognitive impairment in schizophrenia（SZ） rats and the underlying mechanism. A rat model of schizophrenia was induced by MK-801. The cognitive function of rats was assessed using a Morris water maze. The number of hippocampal neurons was measured by Nissl staining. The expression of CREB, p-CREB, BDNF, TrkB, p-TrkB, AKT, p-AKT, ERK, and p-ERK in the hippocampus of rats was detected by Western blotting. The results showed that ω-3PUFAs attenuated MK-801-induced cognitive impairment and hippocampal neurons loss, reversed the injury of the CREB/BDNF/TrkB pathway induced by MK-801, and antagonized MK-801-induced down-regulation of p-AKT and p-ERK in the hippocampus of rats. In conclusion, ω-3PUFAs enhances the CREB/BDNF/TrkB pathway by activating ERK and AKT, thereby increasing the synaptic plasticity and decreasing neuron loss, and antagonizing MK-801-induced cognitive impairment in schizophrenic rats.展开更多
基金Hebei Province Medical Science Research Plan Project(20220282)Baoding Science and Technology Plan Project(2141ZF237)。
文摘The endoplasmic reticulum plays an extremely important role in the process of cellular protein secretion.The cyclic AMP-responsive element-binding protein 3(CREB3)transcription factor family is closely associated with the secretion and transport of proteins within the endoplasmic reticulum.As a member of the CREB3 transcription factor family,cyclic AMP-responsive element-binding protein 3-like protein 2(CREB3L2)stands out as a non-classical sensor within the endoplasmic reticulum.CREB3L2 can detect and regulate endoplasmic reticulum pressure,exert control over the processes of protein transport and secretion,participate in the development of tumor cells,and is also closely linked to the development of certain human tissues and organs.This article aims to review the role of CREB3L2 in tissue development and disease,shedding light on the related mechanisms of CREB3L2 in cancer development.The goal is to provide insights and directions for further analysis of CREB3L2.
文摘目的探讨钾双孔域通道亚家族K成员1(potassium two pore domain channel subfamily K member 1,KCNK1)在肺癌中的功能及其作用机制。方法利用TCGA数据分析KCNK1在肺癌组织中的表达水平,在H1299和H1975中用克隆形成实验检测KCNK1基因敲减后对肺腺癌细胞增殖的影响,探讨KCNK1在肺腺癌细胞增殖中的作用,并用CCK8等细胞增殖、转移实验进一步验证其功能;将KCNK1干扰后,用Western blot和qPCR实验检测下游通路基因以分析KCNK1基因可能的作用机制。结果KCNK1基因在肺癌组织与癌旁组织相比表达显著升高(P<0.05),且KCNK1敲减后抑制细胞增殖和转移;干扰KCNK1可以抑制CREB3及靶基因的表达水平。结论KCNK1基因在肺癌的恶性进展中起重要的作用,该作用通过调控环磷酸腺苷反应元件结合蛋白3(CREB3)机制进行,KCNK1基因是肺癌新的潜在分子诊断指标及靶点。
文摘Introduction: Hyalinizing spindle cell tumor with giant rosettes (HSCT) is a very uncommon mesenchymal tumor that has similar morphological and biological features to the low-grade fibromyxoid sarcoma (LGFMS). Case Report: Reported herein is a case of primary tumour of buttock HSCT that had rare FUS-CREB3L1 fusion transcripts, a product of characteristic chromosomal abnormality t (7;16) (q33;p11) of HSCT and LGFMS. The patient was a 48-year-old man who had a large solitary mass in the buttock. Histologically, it was composed of bland spindle cells with variable cellularity deposited in a densely hyalinized stroma alternating with myxoid areas. Characteristic collagen rosettes were scattered in the cellular areas. Reverse transcription-polymerase chain reaction (RT-PCR) assay using formalin-fixed, paraffin-embedded tissue detected FUS-CREB3L1 fusion transcripts. In our knowledge is the second case may display a variant FUS/CREB3L1 fusion transcript in international literature. Conclusion: LGFMS and HSCT probably have a wider spectrum of morphologic features than previously thought, the awareness of which will help pathologists to avoid diagnostic pitfalls. Demonstration of the t (7;16) translocation will help to diagnose difficult cases with unusual histologic features.
基金supported in parts by grants from the Hubei Province Key Technology R&D Program(No.2015BCE094)Wuhan Science and Technology Bureau Dawn Plan Project(No.201507040410216)+1 种基金Clinical Research Physician Program of Tongji Medical CollegeHUST and the Academic Frontier Youth Team Project of HUST
文摘This study was to determine the protective effect of ω-3 polyunsaturated fatty acids（ω-3PUFAs） on MK-801-induced cognitive impairment in schizophrenia（SZ） rats and the underlying mechanism. A rat model of schizophrenia was induced by MK-801. The cognitive function of rats was assessed using a Morris water maze. The number of hippocampal neurons was measured by Nissl staining. The expression of CREB, p-CREB, BDNF, TrkB, p-TrkB, AKT, p-AKT, ERK, and p-ERK in the hippocampus of rats was detected by Western blotting. The results showed that ω-3PUFAs attenuated MK-801-induced cognitive impairment and hippocampal neurons loss, reversed the injury of the CREB/BDNF/TrkB pathway induced by MK-801, and antagonized MK-801-induced down-regulation of p-AKT and p-ERK in the hippocampus of rats. In conclusion, ω-3PUFAs enhances the CREB/BDNF/TrkB pathway by activating ERK and AKT, thereby increasing the synaptic plasticity and decreasing neuron loss, and antagonizing MK-801-induced cognitive impairment in schizophrenic rats.
