Biliary rhabdomyosarcoma (BRMS) is an uncommon childhood malignancy which has been managed surgically. We present a case of a 3-year-old boy with BRMS, in whom endoscopic retrograde cholangiopancreatography (ERCP) was...Biliary rhabdomyosarcoma (BRMS) is an uncommon childhood malignancy which has been managed surgically. We present a case of a 3-year-old boy with BRMS, in whom endoscopic retrograde cholangiopancreatography (ERCP) was successfully used both diagnostically and therapeutically, thus obviating the need for surgery and its attendant risks of morbidity and mortality. We conclude that ERCP is an effective alternative to surgery for BRMS in some patients.展开更多
Objective: Real-time monitoring of cytokine secretion at the single immunocyte level,based on the concept of immune cells, sociology has been recently reported. However,the relationships between glioma-initiating cell...Objective: Real-time monitoring of cytokine secretion at the single immunocyte level,based on the concept of immune cells, sociology has been recently reported. However,the relationships between glioma-initiating cells(GICs) and host immune cells and their mutual interactions in the tumor microenvironment have not been directly observed and remain unclear. Methods: The dual fluorescence tracing technique was applied to label the co-cultured GICs and host macrophages(M?), and the interactions between the two types of cells were observed using a live cell imaging system. Fusion cells in the co-culture system were monocloned and proliferated in vitro and their social interactions were observed and recorded. Results: Using real-time dynamic observation of target cells, 6 types of intercellular conjunction microtubes were found to function in the transfer of intercellular information between GICs and M?; GICs and host M? can fuse into hybrid cells after several rounds of mutual interactions, and then these fusion cells fused with each other; Fusion cells generated offspring cells through symmetrical and asymmetrical division or underwent apoptosis. A "cell in cell" phenomenon was observed in the fusion cells, which was often followed by cell release, namely entosis. Conclusions: Preliminary studies revealed the patterns of cell conjunction via microtubes between GICs and host M? and the processes of cell fusion, division, and entosis. The results revealed malignant transformation of host M?, induced by GICs, suggesting complex social relationships among tumor-immune cells in gliomas.展开更多
Non-protein coding RNAs have emerged as a regulator of cell signaling and cancer progression through regulation of cell proliferation,metastatic burden,and cancer stem cell capacity.A subtype of non-protein coding RNA...Non-protein coding RNAs have emerged as a regulator of cell signaling and cancer progression through regulation of cell proliferation,metastatic burden,and cancer stem cell capacity.A subtype of non-protein coding RNA is long non-protein coding RNA(lncRNA).Besides their aforementioned roles in cancer cell biology,dysregulation of lncRNAs contribute to resistance to therapeutic treatments.A couple of important therapeutic classes are chemotherapy and targeted/hormone therapies.This review highlights the variety of malignancies affected by lncRNA dysregulation and the underlying mechanism causing therapeutic resistance.展开更多
文摘Biliary rhabdomyosarcoma (BRMS) is an uncommon childhood malignancy which has been managed surgically. We present a case of a 3-year-old boy with BRMS, in whom endoscopic retrograde cholangiopancreatography (ERCP) was successfully used both diagnostically and therapeutically, thus obviating the need for surgery and its attendant risks of morbidity and mortality. We conclude that ERCP is an effective alternative to surgery for BRMS in some patients.
基金Supported by the National Natural Science Foundation of China(Grant No.81472739)the Natural Science Foundation of Jiangsu Province(Grant No.BK20151214)
文摘Objective: Real-time monitoring of cytokine secretion at the single immunocyte level,based on the concept of immune cells, sociology has been recently reported. However,the relationships between glioma-initiating cells(GICs) and host immune cells and their mutual interactions in the tumor microenvironment have not been directly observed and remain unclear. Methods: The dual fluorescence tracing technique was applied to label the co-cultured GICs and host macrophages(M?), and the interactions between the two types of cells were observed using a live cell imaging system. Fusion cells in the co-culture system were monocloned and proliferated in vitro and their social interactions were observed and recorded. Results: Using real-time dynamic observation of target cells, 6 types of intercellular conjunction microtubes were found to function in the transfer of intercellular information between GICs and M?; GICs and host M? can fuse into hybrid cells after several rounds of mutual interactions, and then these fusion cells fused with each other; Fusion cells generated offspring cells through symmetrical and asymmetrical division or underwent apoptosis. A "cell in cell" phenomenon was observed in the fusion cells, which was often followed by cell release, namely entosis. Conclusions: Preliminary studies revealed the patterns of cell conjunction via microtubes between GICs and host M? and the processes of cell fusion, division, and entosis. The results revealed malignant transformation of host M?, induced by GICs, suggesting complex social relationships among tumor-immune cells in gliomas.
基金This work was supported by Baylor College of Medicine Comprehensive Cancer Training Program(CPRIT RP160283).
文摘Non-protein coding RNAs have emerged as a regulator of cell signaling and cancer progression through regulation of cell proliferation,metastatic burden,and cancer stem cell capacity.A subtype of non-protein coding RNA is long non-protein coding RNA(lncRNA).Besides their aforementioned roles in cancer cell biology,dysregulation of lncRNAs contribute to resistance to therapeutic treatments.A couple of important therapeutic classes are chemotherapy and targeted/hormone therapies.This review highlights the variety of malignancies affected by lncRNA dysregulation and the underlying mechanism causing therapeutic resistance.
