鲇鱼成鱼和幼鱼中含色素的巨噬细胞集结的诱导发生

通过腹腔注射不同剂量的牛血清白蛋白（ＢＳＡ）或墨汁以刺激巨噬细胞活动，研究了鲇鱼成鱼和幼鱼头肾、肾、脾和肝中含色素的巨噬细胞集结（ＰＭＡ）的发生。鲇鱼淋巴样组织中存在巨噬细胞的不均一性，可分网状／纤维状巨噬细胞，梭状巨噬细胞，圆形红色巨噬细胞，圆形黄红色巨噬细胞和含色素的巨噬细胞。注射ＢＳＡ或墨汁后，头肾、肾，脾和肝中ＰＭＡ和圆形巨噬细胞的数量最终均有不同程度的增加。通过诱导发生实验，表明含色素的

INDUCED DEVELOPMENT OF PIGMENT MACROPHAGE AGGREGATE(PMA)IN ADULT AND JUVENILE OF THE FRESHWATER CATFISH

The development of PMA in adult and juvenile of Silurus asotus was investigated by peritoneally injecting with different dosages of bovine serum albumin(BSA)or Indian ink to stimulate macrophage(m)activity.The m heterogeneity was demonstrated in lymphomyeloid tissue(LT)as well as in liver with histologic and cytochemic approaches,by which 5 types of ms,i.e.reticular/fibrous macrophage(RFm),shuttle macrophage(Sm),round red macrophage(RRm),round yellow-red macrophage(RYRm)and pigment macrophage(PM),were identified.PM originated from RFms through the intermediate stages of Sm,RRm and RYRm.The total amount of round macrophages(Rms)and PMA formation was closely related,PMA could not form if the amount of Rms was not high enough,and PMA had a tendency of migrating out of LT during the lateexperiment.The functions attributed to PMA were discussed.