Mucoepidermoid carcinoma of the lung is uncommon , and is characterized by a mixture of mucus - secreting and epidermoid cells 摘要发生在肺部的粘液类上皮癌并不常见，其特征是混和着粘膜分泌细胞和类上皮细胞，颇类似从唾液腺组织长出之肿瘤细胞。
Special subepidermal cells were found to exist beneath the epidermises of h . cordata stems and leaves and secretory cells were found to exist in the cortex and pith of the stems 鱼腥草茎和叶的表皮下有特殊的皮下层细胞，茎的皮层和髓中有分泌细胞存在。
The results show that , from inner to outer , like oxya chinesis , the spermatheca of loxoblemmus doenitzi also consists of six layers except that there is only one kind of secretory cell in the epidermis 与中华稻蝗相似，受精囊由内向外也可分为六层，但上皮层仅有一种分泌细胞。
Conclusions basal cell hyperplasia and tumors have different features of morpholoy and immunohistochemistry in constract to that of secretory cells , and based on these fertures 6 types were categorized 结论基底细胞增生和肿瘤具有与分泌细胞不同的形态学和免疫组化反应特征，其特征可表现为6型。
Anteriorticrticotrophic ( acth ) cell and prolactin ( prl ) cell in rpd do not differentiate until the larva got 15 - day old . blood capillary begins to spread inside the pituitary gland 15日龄稚鱼脑垂体ppd内的促肾上腺皮质素分泌细胞( acth )及催乳激素分泌细胞( prl )已分化，腺垂体内开始出现毛细血管。
Result : the layers of tissue engineeringed vascular model were combined tightly . hvec , vsmc and fibroblast can secrete extracelluar matrix ( ecm ) and interchange substance , resemblin physiological functions 构建后的血管模型，层与层结合紧密，内皮细胞、平滑肌细胞及成纤维细胞分泌细胞外基质，相互进行物质交换，类似于生理条3第四军医大学硕士学位论文件。
Each type of hormone secretory cells is adjusted directly by the nerve fibre in the pituitary . the nerve secretory fibre can be divided into types of a1 , a2 and b . the nerve fibre forms synaptic or indirect links with special harmone secretory cells 根据其轴突内分泌颗粒的大小和形状，鲇神经分泌纤维可区分为a _ 1 、 a _ 2 、和b三种类型，不同类型的神经分泌纤维分别与特定激素分泌细胞形成突触联系或其他间接联系形式。
Bombyx mori prothoracicostaic peptide ( bom - ptsp ) is a recently discovered important neuropeptide of insect , produced by brain neurosecretory cells of bombyx mori . it inhibits the stimulation of prothoracicotropic hormone on ecdysteroidogenesis by prothoracic glands in vivo and in vitro 家蚕抑前胸腺肽( bombyxmoriprothoracicostaicpeptide ， bom - ptsp )是新发现的一种重要的昆虫神经肽，由家蚕脑神经分泌细胞分泌。
Macrophage is a kind of immune cell as well as accessory cell . it can function as antiinfection , anticancer , immune response and immunoregulation by phagocytosis , antigen presentation , cytokines secretion , lymphocyte activation , reactive oxygen and no production . it ' s an important part of body immune system 巨噬细胞( macrophage )既是免疫细胞，又是辅佐免疫应答细胞，可通过吞噬、抗原呈递、分泌细胞因子、激活淋巴细胞和产生活性氧、 no等作用而行使抗感染、抗肿瘤、免疫应答和免疫调节作用，是机体免疫系统的重要组成部分。
Dendritic cells ( dc ) is the most powerful apc , which can markedly increase the antigen - presentation capacity by maximizing the pepitide - mhc complexes on the cell surface and upregulating the co - stimulatory ligands b7 - 1 and b7 - 2 , adhesion moleculees such as il - 12 that promote full activation of lymphocytes . full activation of antigen - specific t cells requires two signals - one signal coming via the tcr and the other signal through engagment of co - stimulatary molecules . t cells receiving one signal via their tcr are turned off by mhc ( major histocompatibility complex ) , via t cell cd28 binding to b7 on the dc induce tlymphokine and t cell proliferatiion T细胞介导的细胞免疫在控制肿瘤生长方面发挥着重要作用， t细胞在发挥抗瘤效应(分泌细胞因子和直接杀伤)之前必须先经过活化，体内专职抗原提呈细胞( apc )细胞并使其活化，树突状细胞( dendriticcell , dc )为t细胞的激活提供双重信号， t细胞借助tcr识别由dcmhc分子递交的抗原肽后，通过tcr - cd3复合体传递抗原特异性识别信号(第一信号) ，以cd28为主的t细胞表面辅佐分子识别dc表面b7分子，传递非特异性协同刺激信号(第二信号) ，在机体抗肿瘤免疫应答中处于核心地位。
