Erythrophagocytosis in circulating blood of loggerhead turtles Caretta caretta: The pitting of Heinz bodies

被引:4
作者
Ruggiero, Maria Grazia [1 ]
Ferretti, Luigi [2 ]
Glomski, Chester [3 ]
Pica, Alessandra [1 ]
机构
[1] Univ Naples Federico II, Dept Biol, I-80134 Naples, Italy
[2] Zool Stn Naples Anton Dohrn, Turtle Ctr, Naples, Italy
[3] SUNY Buffalo, Sch Med, Dept Pathol & Anat Sci, Buffalo, NY 14260 USA
来源
JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL GENETICS AND PHYSIOLOGY | 2014年 / 321卷 / 03期
关键词
ERYTHROCYTES; MEMBRANES; ANEMIA; CELLS;
D O I
10.1002/jez.1844
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
In humans red blood cells live on average of 120 days. Senescent erythrocytes are removed from circulation by macrophages; this process, called erythrophagocytosis (EPC), takes place mainly in the liver but also in the bone marrow. We studied this process in loggerhead turtles Caretta caretta, inhabiting the Mediterranean Sea. Leukocytes of reptiles include heterophils, eosinophils, lymphocytes, basophils, thrombocytes, monocytes, and of these heterophils and monocytes represent the main phagocytic cells. The aim of this study was to investigate the blood of C. caretta specimens and to observe, in the blood smears, heterophils phagocytizing erythrocytes. The phagocytizing cells were also identified by cytochemical reactions. Furthermore some examples of tear-shaped erythrocytes (dacrocytes) were observed. A mechanism presuming a causative link between erythrophagocytosis and teardrop-erythrocyte detection have been proposed to explain this seemingly general pattern of all specimens both wild and housed. J. Exp. Zool. 321A: 144-150, 2014. (c) 2013 Wiley Periodicals, Inc.
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页码:144 / 150
页数:7
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