淋巴水肿中的脂肪组织:病理学的核心特征及药物治疗靶点

Adipose Tissue in Lymphedema: A Central Feature of Pathology and Target for Pharmacologic Therapy.

作者信息

Burton Jackson S, Sletten Arthur C, Marsh Evan, Wood Matthew D, Sacks Justin M

机构信息

Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.

出版信息

Lymphat Res Biol. 2023 Feb;21(1):2-7. doi: 10.1089/lrb.2022.0003. Epub 2022 May 20.

Abstract

Lymphedema is a chronic condition of impaired lymphatic flow that results in limb swelling and debilitation. The pathophysiology of lymphedema is characterized by lymphatic stasis that triggers inflammation, fibrosis, and adipose tissue deposition in the extremities. Most often, this condition occurs in cancer survivors in the years after treatment with combinations of surgery, radiation, or chemotherapy, with the major risk factor being lymph node dissection. Interestingly, obesity and body mass index are independent risk factors for development of lymphedema, suggesting interactions between adipose and lymphatic tissue biology. Currently, treatment of lymphedema involves palliative approaches, including compression garments and physical therapy, and surgical approaches, including liposuction, lymphovenous bypass, and vascularized lymph node transfer. Emerging lymphedema therapies that focus on weight loss or reducing inflammation have been tested in recent clinical trials, yielding mixed results with no effect on limb volumes or changes in bioimpedance measurements. These studies highlight the need for novel therapeutic strategies that target the driving forces of lymphedema. In this light, animal models of lymphedema demonstrate a role of adipose tissue in the progression of lymphedema and suggest these processes may be targeted in the treatment of lymphedema. Herein, we review both conventional and experimental therapies for lymphedema as well as the defining characteristics of its pathophysiology. We place emphasis on the aberrant fibroadipose tissue accumulation in lymphedema and propose a new approach to experimental treatment at the level of adipocyte metabolism.

摘要

淋巴水肿是一种慢性疾病,淋巴管流动受损,导致肢体肿胀和虚弱。淋巴水肿的病理生理学特征是淋巴淤滞,引发炎症、纤维化以及四肢脂肪组织沉积。这种情况最常发生在接受手术、放疗或化疗联合治疗后的癌症幸存者中,主要危险因素是淋巴结清扫。有趣的是,肥胖和体重指数是淋巴水肿发展的独立危险因素,这表明脂肪组织和淋巴组织生物学之间存在相互作用。目前,淋巴水肿的治疗包括姑息治疗方法,如压力衣和物理治疗,以及手术方法,如抽脂、淋巴静脉搭桥和带血管蒂淋巴结转移。最近的临床试验对专注于减肥或减轻炎症的新兴淋巴水肿疗法进行了测试,结果喜忧参半,对肢体体积或生物阻抗测量变化没有影响。这些研究凸显了针对淋巴水肿驱动因素的新型治疗策略的必要性。有鉴于此,淋巴水肿动物模型证明了脂肪组织在淋巴水肿进展中的作用,并表明这些过程可能是淋巴水肿治疗的靶点。在此,我们综述了淋巴水肿的传统疗法和实验疗法及其病理生理学的特征。我们强调淋巴水肿中异常的纤维脂肪组织积累,并提出一种在脂肪细胞代谢水平上进行实验性治疗的新方法。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索