Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Acta Haematol. 2020;143(2):112-117. doi: 10.1159/000500315. Epub 2019 Jul 9.
In addition to intrinsic factors, leukemia cell growth is influenced by the surrounding nonhematopoietic cells in the leukemic microenvironment, including fibroblasts, mesenchymal stem cells, vascular cells, and various immune cells. Despite the fact that macrophages are an important component of human innate immunity, tumor-associated macrophages (TAMs) have long been considered as an accomplice promoting tumor growth and metastasis. TAMs are activated by an abnormal malignant microenvironment, polarizing into a specific phenotype and participating in tumor progression. TAMs that exist in the microenvironment of different types of leukemia are called leukemia-associated macrophages (LAMs), which are reported to be associated with the progression of leukemia. This review describes the role of LAMs in different leukemia subtypes.
除了内在因素外,白血病细胞的生长还受到白血病微环境中周围非造血细胞的影响,包括成纤维细胞、间充质干细胞、血管细胞和各种免疫细胞。尽管巨噬细胞是人体先天免疫的重要组成部分,但肿瘤相关巨噬细胞(TAMs)长期以来一直被认为是促进肿瘤生长和转移的帮凶。TAMs 被异常的恶性微环境激活,极化成为特定的表型并参与肿瘤进展。存在于不同类型白血病微环境中的 TAMs 被称为白血病相关巨噬细胞(LAMs),据报道与白血病的进展有关。本文综述了 LAMs 在不同白血病亚型中的作用。