目的观察轻中型颅脑损伤继发轻度认知功能障碍(MCI)后血清中高迁移率族蛋白B1(highmobility group box-1,HMGB1)和Toll样受体2(toll like receptor-2,TLR2)的表达情况并探讨其临床意义。方法选择郑州大学第五附属医院神经外科自2016年1...目的观察轻中型颅脑损伤继发轻度认知功能障碍(MCI)后血清中高迁移率族蛋白B1(highmobility group box-1,HMGB1)和Toll样受体2(toll like receptor-2,TLR2)的表达情况并探讨其临床意义。方法选择郑州大学第五附属医院神经外科自2016年1月至2017年12月收治的格拉斯哥昏迷评分(GCS)9~15分的轻中型颅脑损伤患者115例为颅脑损伤组,同期于门诊体检的20例符合条件的健康者作为健康组。应用双抗体夹心酶联免疫吸附实验(ELISA)测定两组血清中HMGB1、TLR2水平;分析各组血清中HMGB1和TLR2的表达。结果 3个月后,轻型颅脑损伤组和中型颅脑损伤组与健康组比较,其血清HMGB1、TLR2明显增高(q=42.442,24.264;均P<0.05);中型颅脑损伤组血清HMGB1水平比轻型颅脑损伤组比明显增高(q=17.122,P<0.05),TLR2水平无明显差异(q=2.416,P>0.05)。多组间血清中HMGB1和TLR2水平比较有统计学意义(F=520.008,169.249;均P<0.05);进一步分析,轻型颅脑损伤不伴MCI组和中型颅脑损伤不伴MCI组比健康组血清中HMGB1和TLR2水平高(q=33.252,24.126;均P<0.05),轻型颅脑损伤不伴MCI组和中型颅脑损伤不伴MCI组之间HMGB1和TLR2水平无明显差异(q=2.422,P>0.05);轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比健康组血清中HMGB1和TLR2水平高(q=48.374,44.522;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比轻型颅脑损伤不伴MCI组血清中HMGB1和TLR2水平高(q=28.674,21.351;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比中型颅脑损伤不伴MCI组血清中HMGB1和TLR2水平高(q=19.974,16.465;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组之间HMGB1和TLR2水平无明显差异(q=3.584,P>0.05);颅脑损伤伴MCI患者血清中TLR2和HMGB1的水平呈正相关[Y=0.372X-0.408(r=0.874,P<0.01)];颅脑损伤不伴MCI患者血清中TLR2和HMGB1无明显相关性[Y=0.285X+0.038(r=0.459,P=0.064)]。结论轻中型颅脑损伤患者血清中高表达的HMGB1展开更多
Background:Sepsis is a common severe complication in major burn victims and is characterized by a dysregulated systemic response to inflammation.YTH domain family 2(YTHDF2),a wellstudied N6-methyladenosine(m6A)reader ...Background:Sepsis is a common severe complication in major burn victims and is characterized by a dysregulated systemic response to inflammation.YTH domain family 2(YTHDF2),a wellstudied N6-methyladenosine(m6A)reader that specifically recognizes and binds to m6A-modified transcripts to mediate their degradation,is connected to pathogenic and physiological processes in eukaryotes,but its effect on sepsis is still unknown.We aimed to discover the effects and mechanisms of YTHDF2 in sepsis.Methods:Quantitative reverse transcription-polymerase chain reaction(qRT-PCR)and western blot analyses were used to measure the expression of YTHDF2,the interleukin 6 receptor(IL-6R),high-mobility group box-1(HMGB1),Janus kinase 2(JAK2)and signal transducer and activator of transcription 1(STAT1)under different in vitro conditions.Enzyme-linked immunosorbent assays were utilized to evaluate the expression of HMGB1,IL-6,IL-1βand tumor necrosis factor-α.To confirm that YTHDF2 specifically targets IL-6R mRNA,RNA immunoprecipitation and dual-luciferase reporter assays were performed.Finally,we utilized a mouse model of lipopolysaccharide(LPS)-induced sepsis to verify the effects of YTHDF2 in vivo.Results:According to our findings,YTHDF2 was expressed at a low level in peripheral blood mononuclear cells from septic mice and patients as well as in LPS-induced RAW264.7 cells.Overexpression of YTHDF2 alleviated the inflammatory response by inhibiting HMGB1 release and JAK2/STAT1 signalling in LPS-stimulated cells.Mechanistically,YTHDF2 suppressed JAK2/STAT1 signalling by directly recognizing the m6A-modified site in IL-6R and decreasing the stability of IL-6R mRNA,thereby inhibiting HMGB1 release.In vivo experiments showed that YTHDF2 played a protective role in septic mice by suppressing the IL-6R/JAK2/STAT1/HMGB1 axis.Conclusions:In summary,these findings demonstrate that YTHDF2 plays an essential role as an inhibitor of inflammation to reduce the release of HMGB1 by inhibiting the IL-6R/JAK2/STAT1 pathway,indicating that YTHDF2 is a 展开更多
Objective Primary ovarian small cell carcinoma of pulmonary type(SCCOPT)is a rare ovarian tumor with a poor prognosis.The platinum-based chemotherapy is the standard treatment.However,there is little research on the c...Objective Primary ovarian small cell carcinoma of pulmonary type(SCCOPT)is a rare ovarian tumor with a poor prognosis.The platinum-based chemotherapy is the standard treatment.However,there is little research on the clinical characteristics of SCCOPT and the potential benefits of other treatments due to its low incidence.The study aims to investigate clinicopathological characteristics and treatment of SCCOPT.Methods We summarized the clinical,imaging,laboratorical and pathological characteristics of 37 SCCOPT cases,in which 6 cases were admitted to the Gansu Provincial Hospital from the year of 2008 to 2022 and 31 cases reported in 17 English and 3 Chinese literatures.Results The median age of the studied SCCOPT cases(n=37)was 56.00(range,22-80)years.Almost 80%of them had a stageⅢorⅣtumor.All patients underwent an operation and postoperative chemotherapy.Nevertheless,all cases had a poor prognosis,with a median overall survival time of 12 months.Immunohistochemical y,the SCCOPT of all patients showed positive expressions of epithelial markers,such as CD56 and sex-determining region of Y chromosome-related high-mobility-group box 2(SOX-2),and negative expressions of estrogen receptor,progesterone receptor,vimentin,Leu-7,and somatostatin receptor 2.The tumor of above 80%cases expressed synaptophysin.Only a few cases expressed neuron-specific enolase,chromogranin A,and thyroid transcription factor-1.Conclusions SCCOPT had a poor prognosis.SOX-2 could be a biomarker to be used to diagnose SCCOPT.展开更多
Objective: Exploring the clinical signification of high-mobility group box 1 protein(HMGB1) expression in infiltrating ductal carcinoma(IDC) breast tissue. Methods: The expression of HMGB1 protein in IDC breast tissue...Objective: Exploring the clinical signification of high-mobility group box 1 protein(HMGB1) expression in infiltrating ductal carcinoma(IDC) breast tissue. Methods: The expression of HMGB1 protein in IDC breast tissue was detected by immunohistochemistry, and the relations among size of tumour, lymph node metastasis, clinical staging, estrogen receptor(ER), progesterone receptor(PR) and human epidermal growth factor receptor 2(HER-2) were also analyzed. Results: Fortysix cases out of 60 cases of IDC breast tissue showed positive or strong positive HMGB1 expression(76.67%), statistical significance was observed between HMGB1 expression with clinical staging(P < 0.01), lymph node metastasis(P < 0.01), breast cancer ER(P < 0.05) and HER-2(P < 0.05), however same conclusion can not be drawn between HMGB1 with either size of tumour or PR expression(P > 0.05) in IDC breast tissue. Spearman analysis showed negative correlation between HMGB1 expression and ER, and positive correlation between HMGB1 expression and clinical staging, lymph node metastasis together with HER-2. Conclusion: It's promising that HMGB1 expression in IDC tissue can be one of biological indicators of poor prognosis.展开更多
Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources...Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources： The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were ＂SOX2,＂ ＂cancer,＂ ＂tumor＂ or ＂CSCs.＂ Study Selection： Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. Results： SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRV-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. Conclusions： Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology ofneoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, P13K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy.展开更多
【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中S...【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中Sox2的表达水平,采用SPSS13.0统计软件分析肿瘤组织Sox2与临床病理因素及患者总生存时间的关系。【结果】Sox2在人肾癌组织中的表达明显高于癌旁正常组织(P<0.05);随TNM分期的递增(P=0.027)、淋巴结转移的出现(P=0.010)以及Ki-67表达(P=0.037)的增加,Sox2表达水平逐渐升高,各组间有显著相关性;Sox2表达阳性的肾癌患者,术后五年生存率较低(P=0.017);Sox2的表达与患者性别、年龄、肿瘤直径及组织类型无显著相关性。【结论】Sox2的表达与临床病理因素及预后有一定关系,其高表达可能在肾癌发生、发展中起重要作用,并很可能成为潜在的治疗靶点及预测肾癌预后的有价值的分子标记物。展开更多
文摘目的观察轻中型颅脑损伤继发轻度认知功能障碍(MCI)后血清中高迁移率族蛋白B1(highmobility group box-1,HMGB1)和Toll样受体2(toll like receptor-2,TLR2)的表达情况并探讨其临床意义。方法选择郑州大学第五附属医院神经外科自2016年1月至2017年12月收治的格拉斯哥昏迷评分(GCS)9~15分的轻中型颅脑损伤患者115例为颅脑损伤组,同期于门诊体检的20例符合条件的健康者作为健康组。应用双抗体夹心酶联免疫吸附实验(ELISA)测定两组血清中HMGB1、TLR2水平;分析各组血清中HMGB1和TLR2的表达。结果 3个月后,轻型颅脑损伤组和中型颅脑损伤组与健康组比较,其血清HMGB1、TLR2明显增高(q=42.442,24.264;均P<0.05);中型颅脑损伤组血清HMGB1水平比轻型颅脑损伤组比明显增高(q=17.122,P<0.05),TLR2水平无明显差异(q=2.416,P>0.05)。多组间血清中HMGB1和TLR2水平比较有统计学意义(F=520.008,169.249;均P<0.05);进一步分析,轻型颅脑损伤不伴MCI组和中型颅脑损伤不伴MCI组比健康组血清中HMGB1和TLR2水平高(q=33.252,24.126;均P<0.05),轻型颅脑损伤不伴MCI组和中型颅脑损伤不伴MCI组之间HMGB1和TLR2水平无明显差异(q=2.422,P>0.05);轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比健康组血清中HMGB1和TLR2水平高(q=48.374,44.522;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比轻型颅脑损伤不伴MCI组血清中HMGB1和TLR2水平高(q=28.674,21.351;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组比中型颅脑损伤不伴MCI组血清中HMGB1和TLR2水平高(q=19.974,16.465;均P<0.05),轻型颅脑损伤伴MCI组和中型颅脑损伤伴MCI组之间HMGB1和TLR2水平无明显差异(q=3.584,P>0.05);颅脑损伤伴MCI患者血清中TLR2和HMGB1的水平呈正相关[Y=0.372X-0.408(r=0.874,P<0.01)];颅脑损伤不伴MCI患者血清中TLR2和HMGB1无明显相关性[Y=0.285X+0.038(r=0.459,P=0.064)]。结论轻中型颅脑损伤患者血清中高表达的HMGB1
基金The National Natural Science Foundation of China(82072171 and 81873935)provided funding for this work.
文摘Background:Sepsis is a common severe complication in major burn victims and is characterized by a dysregulated systemic response to inflammation.YTH domain family 2(YTHDF2),a wellstudied N6-methyladenosine(m6A)reader that specifically recognizes and binds to m6A-modified transcripts to mediate their degradation,is connected to pathogenic and physiological processes in eukaryotes,but its effect on sepsis is still unknown.We aimed to discover the effects and mechanisms of YTHDF2 in sepsis.Methods:Quantitative reverse transcription-polymerase chain reaction(qRT-PCR)and western blot analyses were used to measure the expression of YTHDF2,the interleukin 6 receptor(IL-6R),high-mobility group box-1(HMGB1),Janus kinase 2(JAK2)and signal transducer and activator of transcription 1(STAT1)under different in vitro conditions.Enzyme-linked immunosorbent assays were utilized to evaluate the expression of HMGB1,IL-6,IL-1βand tumor necrosis factor-α.To confirm that YTHDF2 specifically targets IL-6R mRNA,RNA immunoprecipitation and dual-luciferase reporter assays were performed.Finally,we utilized a mouse model of lipopolysaccharide(LPS)-induced sepsis to verify the effects of YTHDF2 in vivo.Results:According to our findings,YTHDF2 was expressed at a low level in peripheral blood mononuclear cells from septic mice and patients as well as in LPS-induced RAW264.7 cells.Overexpression of YTHDF2 alleviated the inflammatory response by inhibiting HMGB1 release and JAK2/STAT1 signalling in LPS-stimulated cells.Mechanistically,YTHDF2 suppressed JAK2/STAT1 signalling by directly recognizing the m6A-modified site in IL-6R and decreasing the stability of IL-6R mRNA,thereby inhibiting HMGB1 release.In vivo experiments showed that YTHDF2 played a protective role in septic mice by suppressing the IL-6R/JAK2/STAT1/HMGB1 axis.Conclusions:In summary,these findings demonstrate that YTHDF2 plays an essential role as an inhibitor of inflammation to reduce the release of HMGB1 by inhibiting the IL-6R/JAK2/STAT1 pathway,indicating that YTHDF2 is a
文摘Objective Primary ovarian small cell carcinoma of pulmonary type(SCCOPT)is a rare ovarian tumor with a poor prognosis.The platinum-based chemotherapy is the standard treatment.However,there is little research on the clinical characteristics of SCCOPT and the potential benefits of other treatments due to its low incidence.The study aims to investigate clinicopathological characteristics and treatment of SCCOPT.Methods We summarized the clinical,imaging,laboratorical and pathological characteristics of 37 SCCOPT cases,in which 6 cases were admitted to the Gansu Provincial Hospital from the year of 2008 to 2022 and 31 cases reported in 17 English and 3 Chinese literatures.Results The median age of the studied SCCOPT cases(n=37)was 56.00(range,22-80)years.Almost 80%of them had a stageⅢorⅣtumor.All patients underwent an operation and postoperative chemotherapy.Nevertheless,all cases had a poor prognosis,with a median overall survival time of 12 months.Immunohistochemical y,the SCCOPT of all patients showed positive expressions of epithelial markers,such as CD56 and sex-determining region of Y chromosome-related high-mobility-group box 2(SOX-2),and negative expressions of estrogen receptor,progesterone receptor,vimentin,Leu-7,and somatostatin receptor 2.The tumor of above 80%cases expressed synaptophysin.Only a few cases expressed neuron-specific enolase,chromogranin A,and thyroid transcription factor-1.Conclusions SCCOPT had a poor prognosis.SOX-2 could be a biomarker to be used to diagnose SCCOPT.
基金Supported by a grant from the Innovation Foundation of Excellent Intellectuals in Henan Province(No.2109901)
文摘Objective: Exploring the clinical signification of high-mobility group box 1 protein(HMGB1) expression in infiltrating ductal carcinoma(IDC) breast tissue. Methods: The expression of HMGB1 protein in IDC breast tissue was detected by immunohistochemistry, and the relations among size of tumour, lymph node metastasis, clinical staging, estrogen receptor(ER), progesterone receptor(PR) and human epidermal growth factor receptor 2(HER-2) were also analyzed. Results: Fortysix cases out of 60 cases of IDC breast tissue showed positive or strong positive HMGB1 expression(76.67%), statistical significance was observed between HMGB1 expression with clinical staging(P < 0.01), lymph node metastasis(P < 0.01), breast cancer ER(P < 0.05) and HER-2(P < 0.05), however same conclusion can not be drawn between HMGB1 with either size of tumour or PR expression(P > 0.05) in IDC breast tissue. Spearman analysis showed negative correlation between HMGB1 expression and ER, and positive correlation between HMGB1 expression and clinical staging, lymph node metastasis together with HER-2. Conclusion: It's promising that HMGB1 expression in IDC tissue can be one of biological indicators of poor prognosis.
基金This study was supported by grants from the National Natural Science Foundation of China （No. 81172234） and the Fundamental Research Funds for the Central Universities of China.
文摘Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources： The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were ＂SOX2,＂ ＂cancer,＂ ＂tumor＂ or ＂CSCs.＂ Study Selection： Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. Results： SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRV-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. Conclusions： Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology ofneoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, P13K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy.
文摘【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中Sox2的表达水平,采用SPSS13.0统计软件分析肿瘤组织Sox2与临床病理因素及患者总生存时间的关系。【结果】Sox2在人肾癌组织中的表达明显高于癌旁正常组织(P<0.05);随TNM分期的递增(P=0.027)、淋巴结转移的出现(P=0.010)以及Ki-67表达(P=0.037)的增加,Sox2表达水平逐渐升高,各组间有显著相关性;Sox2表达阳性的肾癌患者,术后五年生存率较低(P=0.017);Sox2的表达与患者性别、年龄、肿瘤直径及组织类型无显著相关性。【结论】Sox2的表达与临床病理因素及预后有一定关系,其高表达可能在肾癌发生、发展中起重要作用,并很可能成为潜在的治疗靶点及预测肾癌预后的有价值的分子标记物。
