无脊椎动物免疫分子多态性

章跃陵,,赵贤亮,严芳,

中国生物化学与分子生物学报 ›› 2010, Vol. 26 ›› Issue (03) : 209-214.

PDF(213 KB)
PDF(213 KB)
中国生物化学与分子生物学报 ›› 2010, Vol. 26 ›› Issue (03) : 209-214.
综述

无脊椎动物免疫分子多态性

  • 章跃陵1),2)*,赵贤亮1),严芳1),2)
作者信息 +

Polymorphisms of Immune Molecules in Invertebrates

  • ZHANG Yue-Ling1),2)*, ZHAO Xian-Liang1), YAN Fang1),2)
Author information +
文章历史 +

摘要

一般认为,非特异性免疫分子由于胚系基因种类有限而不具备多态性.但近年来人们发现,脊椎动物γ/δ T 细胞受体、B1细胞受体、某些固有免疫成分,以及无脊椎动物的某些免疫球蛋白超家族(immunoglobulin superfamily,IgSF)分子、抗菌肽和模式识别受体(pattern recognition receptors,PRR)等同样具有较高程度的多态性.与特异性免疫分子相似,其多态性形成机制主要为基因组水平的基因重排、单核苷酸多态性、DNA 突变和 mRNA 水平的外显子可变剪接.该多态性的出现可能是无脊椎动物的一种适应性进化,其应为低等生物特异性识别和防御不同病原微生物感染的分子基础. 本文就无脊椎动物免疫分子多态性的最新研究进展及其可能的形成机制与意义进行概述.

Abstract

Recent studies have shown a significant degree of molecular polymorphisms in many nonspecific immune molecules, which were believed to be conserved due to the limited variance in the germline genes. The polymorphisms in γ/δ T cell receptor, B1 cell receptor and certain innate immune components have been found in vertebrates, whereas the polymorphisms in certain immunoglobulin superfamily molecules, antimicrobial peptides and pattern recognition receptors were identified in invertebrates. Similar to that was found for the specific immune molecules, the polymorphisms in non-specific immune molecules derived from gene rearrangement, single nucleotide polymorphisms, DNA mutation and alternative splicing of exons. The polymorphisms of immune molecules in invertebrates form the molecular basis to recognize and defend against different pathogens in lower organisms, and contributed in adaptive evolution. In this review, we will discuss recent progress in the polymorphism studies on the functions of invertebrate immune molecules and their possible formation mechanisms.

关键词

无脊椎动物 / 免疫分子 / 多态性 / 形成机制

Key words

invertebrate / immune molecules / polymorphism / formation mechanism

引用本文

导出引用
章跃陵,,赵贤亮,严芳,. 无脊椎动物免疫分子多态性[J]. 中国生物化学与分子生物学报, 2010, 26(03): 209-214
ZHANGYue-Ling,,ZHAOXian-Liang,YANFang,. Polymorphisms of Immune Molecules in Invertebrates[J]. Chinese Journal of Biochemistry and Molecular Biology, 2010, 26(03): 209-214
中图分类号: Q71   
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