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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (26): 144-153.doi: 10.11924/j.issn.1000-6850.casb2023-0736

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Research Advances on Fish Blood Cells and Immune Defense Functions

ZHANG Meiyan1,2(), ZHU Weijuan1,2, LIU Zhigang1,2, CAO Jianmeng1, WANG Zhang1, LU Maixin1, KE Xiaoli1,2()   

  1. 1 Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences/ Key Laboratory of Utilization and Culture of Tropical and Subtropical Aquatic Resources, Ministry of Agriculture and Rural Affairs/ Guangdong Provincial Key Laboratory of Aquatic Animal Immunity Technology, Guangzhou 510380
    2 College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 201306
  • Received:2023-11-08 Revised:2024-01-31 Online:2024-09-15 Published:2024-09-11

Abstract:

Fish blood cells are important part in fish body immunity. They participate in many physiological activities, such as body phagocytosis, secretion, damage repair, defense and others. They are sensitive to changes in their own physiological state as well as to the stimulation of external environmental factors. Blood cells play an important role in indicating and maintaining the physiological homeostasis of fish. Based on recent research reports of domestic and international developments, this paper investigated the progress of fish blood, blood cells and their immune defense functions, and reviewed the blood composition, blood cell genesis, differentiation and related immune defense mechanisms of fish. This review is helpful to deepen the understanding of fish blood immune defense system and its related molecular mechanism, and provides references for further exploration of molecular markers related to fish blood immune defense and screening of molecular phenotypes of fish disease and stress resistance.

Key words: fish, fish blood, blood cell, immune cell, cell differentiation, immune defense, physiological homeostasis, molecular mechanisms of action