中文摘要：

高迁移率族蛋白 B1（ high-mobility group box 1, HMGB1）是一种保守的核蛋白,对维持核小体稳定、DNA重组、复制、修复及转录有重要作用。其可由坏死的细胞被动释放,或在适宜刺激下主动分泌至胞外。近年的研究显示：HMGB1信号的活化与肺损伤、肺纤维化、肺癌等肺部疾病的发展密切相关,而阻断HMGB1信号可抑制其病理进程,说明HMGB1的抑制对这类疾病有潜在治疗价值。该文就HMGB1在呼吸系统疾病中的作用及其机制作一综述,以期为上述疾病的诊断和治疗提供新的理论依据。

英文摘要：

High-mobility group box 1 （ HMGB1 ） is a conserva-tive nuclear protein and plays an essential role in maintaining nu-cleosome stability, DNA recombination, replication, repair and transcription. It can be passively released by necrotic cells or ac-tively secreted into extracellular under appropriate stimulus. Re-cent studies show that the activation of HMGB1 signaling is closely related to the progress of lung diseases including lung in-jury, pulmonary fibrosis and lung cancer, while blocking＆amp;nbsp;HMGB1 signaling inhibits the pathological process, indicating the therapeutic potential of HMGB1 inhibition in treating these diseases. This review summarizes the role and mechanisms of HMGB1 in such diseases, in order to provide novel evidence for the diagnosis and treatment.