Behavior of Hemocytes in the Allorejection Reaction in Two Compound Ascidians, Botryllus scalaris and Symplegma reptans.
Behavior of Hemocytes in the Allorejection Reaction in Two Compound Ascidians, Botryllus scalaris and Symplegma reptans.
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两种复合海鞘、Botryllus scalaris 和 Symplegma reptans 中血细胞在同种异体排斥反应中的行为。
DOI：
10.2307/1542614
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Y. Saito
中科院分区：
文献类型：
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作者：
M. Shirae;E. Hirose;Y. Saito
在海鞘中，同种异体排斥反应的类型因物种而异。这些不同反应的比较研究有助于我们对异体识别和非自我排斥系统的理解。我们研究了在同种异体排斥反应中处于重要位置的两种动物——黄羊霉和reptans的血细胞形态。在黄鳞白刺中，吞噬细胞介导血细胞聚集，导致不相容菌落在血管融合后血液流动中断。虽然以往的研究表明，桑葚胚细胞（MCs）在排斥反应中起着核心作用，但黄颡鱼的MCs并不参与排斥反应。reptans的菌落表现出两种类型的同种异体排斥反应，它们在两个菌落血管融合过程中的不同时间点开始。在这两种类型的排斥反应中，MCs发挥了核心作用，其行为与除黄鳞白蝇和来自以色列的黑鳞白蝇外的所有黑鳞白蝇相似。这些观察结果表明，本研究中观察到的血细胞行为和同种异体识别位点的差异反映了同种异体排斥反应的差异。
In botryllid ascidians, the type of allorejection reaction differs among species. Comparative studies of these different reactions contribute to our understanding of the allorecognition and nonself-rejection system. We studied the morphology of hemocyte behavior during allorejection reactions in two species, Botryllus scalaris and Symplegma reptans, which stand at important points in botryllid phylogeny. In B. scalaris, phagocytes mediated hemocyte aggregation, resulting in interruption of blood flow just after vascular fusion of incompatible colonies. Although previous studies indicate that morula cells (MCs) play a central role in the rejection reaction, the MCs of B. scalaris did not participate in the rejection reaction. Colonies of S. reptans showed two types of allorejection reaction that started at different points in the process of vascular fusion between two colonies. In both types of rejection reaction, the MCs played a central role and behaved similarly to those of all botryllids except B. scalaris and a botryllid from Israel. These observations suggest that the differences in hemocyte behavior and allorecognition site observed in this study reflect the variation in allorejection reactions among botryllids.
Boyd, H.C.：“形态学和遗传验证表明蒙特利葡萄菌和伍兹霍尔葡萄菌是同一物种。”
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