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Emerging roles of podoplanin in vascular development and homeostasis
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 421-430 doi: 10.1007/s11684-015-0424-9
Podoplanin (PDPN) is a mucin-type O-glycoprotein expressed in diverse cell types, such as lymphatic endothelial cells (LECs) in the vascular system and fibroblastic reticular cells (FRCs) in lymph nodes. PDPN on LECs or FRCs activates CLEC-2 in platelets, triggering platelet activation and/or aggregation through downstream signaling events, including activation of Syk kinase. This mechanism is required to initiate and maintain separation of blood and lymphatic vessels and to stabilize high endothelial venule integrity within lymph nodes. In the vascular system, normal expression of PDPN at the LEC surface requires transcriptional activation of Pdpn by Prox1 and modification of PDPN with core 1-derived O-glycans. This review provides a comprehensive overview of the roles of PDPN in vascular development and lymphoid organ maintenance and discusses the mechanisms that regulate PDPN expression related to its function.
关键词: podoplanin CLEC-2 Prox1 O-glycosylation lymphatic vascular development and maintenance lymphoid organ homeostasis
Paradoxical role of Id proteins in regulating tumorigenic potential of lymphoid cells
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《医学前沿(英文)》 2018年 第12卷 第4期 页码 374-386 doi: 10.1007/s11684-018-0652-x
A family of transcription factors known as Id proteins, or inhibitor of DNA binding and differentiation, is capable of regulating cell proliferation, survival and differentiation, and is often upregulated in multiple types of tumors. Due to their ability to promote self-renewal, Id proteins have been considered as oncogenes, and potential therapeutic targets in cancer models. On the contrary, certain Id proteins are reported to act as tumor suppressors in the development of Burkitt’s lymphoma in humans, and hepatosplenic and innate-like T cell lymphomas in mice. The contexts and mechanisms by which Id proteins can serve in such contradictory roles to determine tumor outcomes are still not well understood. In this review, we explore the roles of Id proteins in lymphocyte development and tumorigenesis, particularly with respect to inhibition of their canonical DNA binding partners known as E proteins. Transcriptional regulation by E proteins, and their antagonism by Id proteins, act as gatekeepers to ensure appropriate lymphocyte development at key checkpoints. We re-examine the derailment of these regulatory mechanisms in lymphocytes that facilitate tumor development. These mechanistic insights can allow better appreciation of the context-dependent roles of Id proteins in cancers and improve considerations for therapy.
关键词: Id proteins lymphoma leukemia T cells B cells tumor suppressor oncogene
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 468-477 doi: 10.1007/s11684-015-0419-6
Mature T-cell lymphoid malignancies comprise a group of heterogeneous diseases that vary in clinicopathological features, biological behavior, treatment response, and prognosis. Bone marrow (BM) infiltration is more commonly present in mature T-cell lymphoid malignancies compared with their B-cell counterparts and hence important for differential diagnosis. In this study, clinical characteristics and prognostic factors were analyzed in 225 patients with mature T-cell lymphoid malignancies treated in a single institution. These included 29 cases of T-cell lymphoproliferative disorders (T-LPD, all with BM infiltration) and 196 cases of T-/natural-killer-cell lymphoma (T/NKCL, 56 with BM infiltration and 140 without BM infiltration). The estimated 5-year overall survival (OS) rates of T-LPD and T/NKCL were 96.6% and 37.3%, respectively. T-LPD patients were less likely to exhibit poor performance status, advanced disease stage, presence of B symptoms, or abnormal level of serum β-2 microglobulin. With similar pathological characteristics, T/NKCL patients with BM infiltration showed significantly lower response rates and shorter OS than those without BM infiltration (P = 0.0264 and P<0.0001, respectively). Multivariate analysis indicated that poor performance status, advanced disease stage, elevated serum lactate dehydrogenase level, and BM involvement were independent unfavorable prognostic factors. The Glasgow Prognostic Score may be more efficient than the International Prognostic Index in predicting disease outcome in T/NKCL. In conclusion, clinical characteristics may be useful in more effectively stratifying patients with mature T-cell lymphoid malignancies.
关键词: mature T-cell lymphoid malignancies clonal T-cell population bone marrow infiltration prognostic factors
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《医学前沿(英文)》 2015年 第9卷 第3期 页码 288-303 doi: 10.1007/s11684-015-0412-0
Toll-like receptors (TLRs), which are found in innate immune cells, are essential mediators of rapid inflammatory responses and appropriate T-cell activation in response to infection and tissue damage. Accumulating evidence suggests that TLR signaling is involved in normal hematopoiesis and specific hematologic pathologies. Particular TLRs and their downstream signaling mediators are expressed not only in terminally differentiated innate immune cells but also in early hematopoietic progenitors. Sterile activation of TLR signaling is required to generate early embryonic hematopoietic progenitor cells. In adult animals, TLR signaling directly or indirectly promotes differentiation of myeloid cells at the expense of that of lymphoid cells and the self-renewal of hematopoietic stem cells during infection and tissue damage. Activating mutations of the MyD88 gene, which codes for a key adaptor involved in TLR signaling, are commonly detected in B-cell lymphomas and other B-cell hematopathologies. Dysregulated TLR signaling contributes to the pathogenesis of many hematopoietic disorders, including bone marrow failure, myelodysplastic syndrome, and acute myeloid leukemia. Complete elucidation of the molecular mechanisms by which TLR signaling mediates the regulation of both normal and pathogenic hematopoiesis will prove valuable to the development of targeted therapies and strategies for improved treatment of hematopoietic disorders.
关键词: TLR MyD88 hematopoiesis bone marrow failure leukemia myelodysplastic syndrome
Zinc homeostasis in the metabolic syndrome and diabetes
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《医学前沿(英文)》 2013年 第7卷 第1期 页码 31-52 doi: 10.1007/s11684-013-0251-9
Zinc (Zn) is an essential mineral that is required for various cellular functions. Zn dyshomeostasis always is related to certain disorders such as metabolic syndrome, diabetes and diabetic complications. The associations of Zn with metabolic syndrome, diabetes and diabetic complications, thus, stem from the multiple roles of Zn: (1) a constructive component of many important enzymes or proteins, (2) a requirement for insulin storage and secretion, (3) a direct or indirect antioxidant action, and (4) an insulin-like action. However, whether there is a clear cause-and-effect relationship of Zn with metabolic syndrome, diabetes, or diabetic complications remains unclear. In fact, it is known that Zn deficiency is a common phenomenon in diabetic patients. Chronic low intake of Zn was associated with the increased risk of diabetes and diabetes also impairs Zn metabolism. Theoretically Zn supplementation should prevent the metabolic syndrome, diabetes, and diabetic complications; however, limited available data are not always supportive of the above notion. Therefore, this review has tried to summarize these pieces of available information, possible mechanisms by which Zn prevents the metabolic syndrome, diabetes, and diabetic complications. In the final part, what are the current issues for Zn supplementation were also discussed.
关键词: zinc zinc transporters metallothionein diabetes diabetic complications insulin resistance antioxidant
Ling Wang, Lining Wang, Xing Fan, Wei Tang, Jiong Hu
《医学前沿(英文)》 2021年 第15卷 第1期 页码 108-115 doi: 10.1007/s11684-019-0730-8
关键词: post-transplantation cyclophosphamide allogeneic hematopoietic stem cell transplantation lymphoid malignancies
《医学前沿(英文)》 2021年 第15卷 第3期 页码 460-471 doi: 10.1007/s11684-021-0861-6
关键词: low-carbohydrate diet obesity nonalcoholic fatty liver disease continuous glucose monitoring mean sensor glucose
《医学前沿(英文)》 doi: 10.1007/s11684-023-0983-0
关键词: mitochondrial fission Ca Berberine alleviates myocardial murine model HFpEF
Zfyve16 regulates the proliferation of B-lymphoid cells
Xuemei Zhao, Donghe Li, Qingsong Qiu, Bo Jiao, Ruihong Zhang, Ping Liu, Ruibao Ren
《医学前沿(英文)》 2018年 第12卷 第5期 页码 559-565 doi: 10.1007/s11684-017-0562-3
Zfyve16 (a.k.a. endofin or endosome-associated FYVE-domain protein), a member of the FYVE-domain protein family, is involved in endosomal trafficking and in TGF-β, BMP, and EGFR signaling. The FYVE protein SARA regulates the TGF-β signaling pathway by recruiting Smad2/3 and accelerating their phosphorylation, thereby altering their susceptibility to TGF-β-mediated T cell suppression. Zfyve16 binds to Smad4 and their binding affects the formation of Smad2/3-Smad4 complex in TGF-β signaling. However, the in vivo function of Zfyve16 remains unknown. In this study, we generated a Zfyve16 knockout mouse strain (Zfyve16KO) and examined its hematopoietic phenotypes and hematopoietic reconstruction ability. The proportion of T cells in the peripheral blood of Zfyve16KO mice increases compared with that in wild-type mice. This finding is consistent with the role of Zfyve16 in facilitating TGF-β signaling. Unpredictably, B cell proliferation is inhibited in Zfyve16KO mice. The proliferation potential of Zfyve16KO B-lymphoid cells also significantly decreases in vitro. These results suggest that Zfyve16 inhibits the proliferation of T cells, possibly through the TGF-β signaling, but upregulates the proliferation of B-lymphoid cells.
Planetary Homeostasis of Reactive Nitrogen Through Anaerobic Ammonium Oxidation
Guibing Zhu,Bangrui Lan,Shuci Liu,Cameron M. Callbeck,Shanyun Wang,Liping Jiang,Asheesh Kumar Yadav,Jan Vymazal,Mike S. M. Jetten,Ganlin Zhang,Yongguan Zhu,
《工程(英文)》 doi: 10.1016/j.eng.2023.09.013
关键词: biogeochemical N-cycle oxic–anoxic interface nature-based solution biogeoengineering nitrogen sustainable development
用于器官芯片的工程化血管系统 Review
Abdellah Aazmi, 周竑钊, 李雨亭, 俞梦飞, 许晓斌, 吴钰桐, 马梁, 张斌, 杨华勇
《工程(英文)》 2022年 第9卷 第2期 页码 131-147 doi: 10.1016/j.eng.2021.06.020
器官芯片技术是一种很有前途的三维(3D)动态培养方法,可确保准确高效的细胞培养,在临床前试验中具有替代动物模型的巨大潜力。血管系统是人体内最丰富的器官,在氧气交换和物质传递中起着至关重要的作用,是组织器官生存的决定性因素。因此,必须将血管系统集成到器官芯片中,以重建组织和器官微环境及其生理功能。本文讨论了血管与新兴器官芯片技术之间的协同作用,为复现生理学和疾病特征提供了更好的可能性。此外,回顾了血管化的器官芯片制造过程的不同步骤,包括使用不同生物制造策略的结构制造和组织构建。最后,概述了这项技术在器官和肿瘤培养这个有极具吸引力且快速发展的领域的适用性。
A literature review of perishable medical resource management
《工程管理前沿(英文)》 页码 710-726 doi: 10.1007/s42524-023-0278-9
关键词: perishable medical resources organ transplant healthcare products decision analytics operations management
ECRG4: a new potential target in precision medicine
Xin Qin, Ping Zhang
《医学前沿(英文)》 2019年 第13卷 第5期 页码 540-546 doi: 10.1007/s11684-018-0637-9
关键词: ECRG4 tumor suppressor gene sentinel molecule precision medicine cell senescence epithelium homeostasis
Piezoelectric pump with flexible venous valves for active cell transmission
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0712-4
关键词: venous valve flexible venous valve cell transmission organ-on-a-chip system piezoelectric device
The relevance of James Lovelock’s research and philosophy to environmental science and academia
《环境科学与工程前沿(英文)》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1639-7
关键词: Academic independence Climate change Electron capture detector Environmental equilibrium Global warming Homeostasis
标题 作者 时间 类型 操作
Clinical characteristics and prognostic factors of patients with mature T-cell lymphoid malignancies:
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期刊论文
Toll-like receptor signaling in hematopoietic homeostasis and the pathogenesis of hematologic diseases
null
期刊论文
post-transplantation cyclophosphamide for allogeneic peripheral stem cell transplantation for adult patients with lymphoid
Ling Wang, Lining Wang, Xing Fan, Wei Tang, Jiong Hu
期刊论文
Low-carbohydrate diets lead to greater weight loss and better glucose homeostasis than exercise: a randomized
期刊论文
alleviates myocardial diastolic dysfunction by modulating Drp1-mediated mitochondrial fission and Ca homeostasis
期刊论文
Zfyve16 regulates the proliferation of B-lymphoid cells
Xuemei Zhao, Donghe Li, Qingsong Qiu, Bo Jiao, Ruihong Zhang, Ping Liu, Ruibao Ren
期刊论文
Planetary Homeostasis of Reactive Nitrogen Through Anaerobic Ammonium Oxidation
Guibing Zhu,Bangrui Lan,Shuci Liu,Cameron M. Callbeck,Shanyun Wang,Liping Jiang,Asheesh Kumar Yadav,Jan Vymazal,Mike S. M. Jetten,Ganlin Zhang,Yongguan Zhu,
期刊论文