2. Academic Validation
  3. High mobility group box 1 (HMGB1): a pivotal regulator of hematopoietic malignancies

High mobility group box 1 (HMGB1): a pivotal regulator of hematopoietic malignancies

  • J Hematol Oncol. 2020 Jul 13;13(1):91. doi: 10.1186/s13045-020-00920-3.
Shunling Yuan 1,  Zhaoping Liu 1,  Zhenru Xu 1,  Jing Liu 2,  Ji Zhang 3
Affiliations

Affiliations

  • 1 Department of Clinical Laboratory, The First Affiliated Hospital, University of South China, Hengyang, 421001, Hunan, China.
  • 2 Hunan Province Key Laboratory of Basic and Applied Hematology, Molecular Biology Research Center & Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, Hunan, China. jingliucsu@hotmail.com.
  • 3 Department of Clinical Laboratory, The First Affiliated Hospital, University of South China, Hengyang, 421001, Hunan, China. zhang_ji001@hotmail.com.
PMID: 32660524 DOI: 10.1186/s13045-020-00920-3
Abstract

High mobility group box 1 (HMGB1) is a nonhistone chromatin-associated protein that has been widely reported to play a pivotal role in the pathogenesis of hematopoietic malignancies. As a representative damage-associated molecular pattern (DAMP), HMGB1 normally exists inside cells but can be secreted into the extracellular environment through passive or active release. Extracellular HMGB1 binds with several different receptors and interactors to mediate the proliferation, differentiation, mobilization, and senescence of hematopoietic stem cells (HSCs). HMGB1 is also involved in the formation of the inflammatory bone marrow (BM) microenvironment by activating proinflammatory signaling pathways. Moreover, HMGB1-dependent Autophagy induces chemotherapy resistance in leukemia and multiple myeloma. In this review, we systematically summarize the emerging roles of HMGB1 in carcinogenesis, progression, prognosis, and potential clinical applications in different hematopoietic malignancies. In summary, targeting the regulation of HMGB1 activity in HSCs and the BM microenvironment is highly beneficial in the diagnosis and treatment of various hematopoietic malignancies.

Keywords

Bone marrow (BM) microenvironment; Chemoresistance; Hematopoietic stem cells (HSCs); High mobility group box 1 (HMGB1); Inflammation.

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