BACKGROUND Chronic myelomonocytic leukemia(CMML),a rare clonal hematopoietic stem cell disorder characterized by myelodysplastic syndrome and myeloproliferative neoplasms,has a generally poor prognosis,and easily prog...BACKGROUND Chronic myelomonocytic leukemia(CMML),a rare clonal hematopoietic stem cell disorder characterized by myelodysplastic syndrome and myeloproliferative neoplasms,has a generally poor prognosis,and easily progresses to acute myeloid leukemia.The simultaneous incidence of hematologic malignancies and solid tumors is extremely low,and CMML coinciding with lung malignancies is even rarer.Here,we report a case of CMML,with ASXL1 and EZH2 gene mutations,combined with non-small cell lung cancer(lung squamous cell carcinoma).CASE SUMMARY A 63-year-old male,suffering from toothache accompanied by coughing,sputum,and bloody sputum for three months,was given a blood test after experiencing continuous bleeding resulting from a tooth extraction at a local hospital.Based on morphological results,the patient was diagnosed with CMML and bronchoscopy was performed in situ to confirm the diagnosis of squamous cell carcinoma in the lower lobe of the lung.After receiving azacitidine,programmed cell death protein 1,and platinum-based chemotherapy drugs,the patient developed severe myelosuppression and eventually fatal leukocyte stasis and dyspnea.CONCLUSION During the treatment and observation of CMML and be vigilant of the growth of multiple primary malignant tumors.展开更多
目的通过多个肿瘤综合数据库分析ASXL1基因突变对子宫内膜癌(EC)预后的影响及其作用机制。方法全面检索GEPIA、Kaplan-Meier plotter、the Human Protein Atlas、FireBrowse、STRING、UALCAN等数据库,分析其生存曲线、功能富集情况、基...目的通过多个肿瘤综合数据库分析ASXL1基因突变对子宫内膜癌(EC)预后的影响及其作用机制。方法全面检索GEPIA、Kaplan-Meier plotter、the Human Protein Atlas、FireBrowse、STRING、UALCAN等数据库,分析其生存曲线、功能富集情况、基因相关性及信号通路,并进行生物信息学预测。结果 ASXL1基因突变是EC不良预后因素,对总生存期及无复发生存期均产生影响(P<0.001)。相关性分析显示,ASXL1基因突变可能通过表观遗传学,JAK2/STAT3和PI3K/AKT/mTOR信号通路发挥作用;结合功能富集分析,ASXL1突变主要影响PI3K/AKT/mTOR信号通路。结论 ASXL1基因突变是EC患者的不良预后因素,可能通过PI3K/AKT/mTOR信号通路发挥作用,应进一步开展相关生物学研究,并探索PI3K/mTOR等信号通路抑制剂的临床价值。展开更多
附加性梳样结构(additional sex combs like,ASXL)1是ASXL家族(包括ASXL1、ASXL2、ASXL3)成员,参与表观遗传调控,在维持基因表达稳态中发挥重要作用。ASXL1基因突变广泛存在于多种髓系肿瘤中,其突变与预后不良相关,在正常造血系统中的...附加性梳样结构(additional sex combs like,ASXL)1是ASXL家族(包括ASXL1、ASXL2、ASXL3)成员,参与表观遗传调控,在维持基因表达稳态中发挥重要作用。ASXL1基因突变广泛存在于多种髓系肿瘤中,其突变与预后不良相关,在正常造血系统中的确切作用以及突变的ASXL1对造血系统恶性肿瘤发展的作用尚未完全阐明。展开更多
文摘BACKGROUND Chronic myelomonocytic leukemia(CMML),a rare clonal hematopoietic stem cell disorder characterized by myelodysplastic syndrome and myeloproliferative neoplasms,has a generally poor prognosis,and easily progresses to acute myeloid leukemia.The simultaneous incidence of hematologic malignancies and solid tumors is extremely low,and CMML coinciding with lung malignancies is even rarer.Here,we report a case of CMML,with ASXL1 and EZH2 gene mutations,combined with non-small cell lung cancer(lung squamous cell carcinoma).CASE SUMMARY A 63-year-old male,suffering from toothache accompanied by coughing,sputum,and bloody sputum for three months,was given a blood test after experiencing continuous bleeding resulting from a tooth extraction at a local hospital.Based on morphological results,the patient was diagnosed with CMML and bronchoscopy was performed in situ to confirm the diagnosis of squamous cell carcinoma in the lower lobe of the lung.After receiving azacitidine,programmed cell death protein 1,and platinum-based chemotherapy drugs,the patient developed severe myelosuppression and eventually fatal leukocyte stasis and dyspnea.CONCLUSION During the treatment and observation of CMML and be vigilant of the growth of multiple primary malignant tumors.
文摘目的通过多个肿瘤综合数据库分析ASXL1基因突变对子宫内膜癌(EC)预后的影响及其作用机制。方法全面检索GEPIA、Kaplan-Meier plotter、the Human Protein Atlas、FireBrowse、STRING、UALCAN等数据库,分析其生存曲线、功能富集情况、基因相关性及信号通路,并进行生物信息学预测。结果 ASXL1基因突变是EC不良预后因素,对总生存期及无复发生存期均产生影响(P<0.001)。相关性分析显示,ASXL1基因突变可能通过表观遗传学,JAK2/STAT3和PI3K/AKT/mTOR信号通路发挥作用;结合功能富集分析,ASXL1突变主要影响PI3K/AKT/mTOR信号通路。结论 ASXL1基因突变是EC患者的不良预后因素,可能通过PI3K/AKT/mTOR信号通路发挥作用,应进一步开展相关生物学研究,并探索PI3K/mTOR等信号通路抑制剂的临床价值。
文摘附加性梳样结构(additional sex combs like,ASXL)1是ASXL家族(包括ASXL1、ASXL2、ASXL3)成员,参与表观遗传调控,在维持基因表达稳态中发挥重要作用。ASXL1基因突变广泛存在于多种髓系肿瘤中,其突变与预后不良相关,在正常造血系统中的确切作用以及突变的ASXL1对造血系统恶性肿瘤发展的作用尚未完全阐明。