-
Adrenaline is another one, produced by cells in your adrenal gland but used by cells all over your body.
肾上腺素是另一个例子,肾上腺素由肾上腺细胞分泌,但全身各处的细胞都能利用它
-
A pancreas--cell in the pancreas, for example, needs to make insulin and so the gene for insulin is transcribed.
举个例子,一个胰腺细胞,要分泌胰岛素,那么编码胰岛素蛋白的基因就会被转录
-
Individual cells of the pancreas are capable of - of a healthy pancreas are capable of both sensing glucose and secreting insulin.
每一个健康胰腺细胞,都可以感知血液中葡萄糖浓度,并分泌胰岛素
-
They're ready to rapidly differentiate into antibody producing cells and they're waiting for that second signal to come.
并可以迅速分化为,抗体分泌细胞,记忆细胞在等待第二次信号的到来
-
Well, insulin is a protein, it's produced by cells in the pancreas, it circulates in your blood.
胰岛素是一种蛋白质,由胰腺细胞分泌,随着血液不断在体内循环
-
So, there are cells in your pancreas which recognize glucose levels and they secrete insulin in response.
你的胰腺细胞能够,识别血糖水平,并分泌胰岛素作为反馈
-
An example is production of certain molecules called cytokines by T-cells that activate themselves.
细胞能分泌这类叫做细胞因子的分子,实现自激活
-
The collagen is excreted by cells themselves, so the matrix is made by cells.
胶原蛋白是细胞自己分泌的,所以说基质也是细胞制造的
-
Only cells in the pancreas, some cells in the pancreas are making insulin.
只有胰腺中的细胞,胰腺中的一些细胞分泌胰岛素
-
A small molecule gets produced by cells in one part of the body, circulates in the blood, estrogen enters cells, and sometimes that estrogen is able to penetrate deep within the cell, even into the nucleus.
雌激素是由身体某部分细胞分泌的,随着血液循环进入细胞,有时雌激素能够进入到细胞内部,甚至进入到细胞核内
-
Well, one because you're not taking anymore glucose in, but the other because when you did eat glucose you got more insulin and the glucose got shuttled into cells where it's either used or stored.
一个是因为你没有再摄入更多的糖分,另一个原因就是,当你摄入糖时,胰岛素分泌增加,糖被转运到细胞内部,要么被用掉要么被储存
-
So, these memory cells are a way that your immune system keeps track of antigens that it's been exposed to for even if maybe the plasma cells that were producing antibody in response to the initial exposure have died and disappeared.
所以,这些记忆细胞,是人体免疫系统记忆抗原的一种方法,即使由浆细胞产生的抗体,在初次免疫应答中全部被消灭,记忆细胞仍然能迅速分化为抗体分泌细胞
-
Here, what's different between autocrine and paracrine is that there's some distance between the cell that produces the signal and the cell that receives the signal, but it's not too great a distance because the blood system doesn't have to be involved.
自分泌和旁分泌的区别在于,旁分泌中,产生信号的细胞和接收信号的细胞,之间存在着一定的距离,但这个距离并不远,因为血液系统并不参与
-
What extracellular matrix you have in any particular tissue is there because there's a balance between it being produced by one kind of cell and digested by another, and you're in this sort of state of dynamic equilibrium.
特定组织中,细胞外基质的多少,取决于一个,分泌与降解的平衡,这是一种动态的平衡关系
-
They both proliferate, increase in number, and they differentiate; they differentiate from immature B-cells into antibody producing cells.
淋巴细胞将迅速增殖,数量大幅提高,同时发生分化,幼B淋巴细胞分化,形成能够分泌抗体的细胞
-
Helper cells don't become cytotoxic cells but they help B cells become antigen producing - antibody producing cells.
附助细胞不会成为细胞毒细胞,它们帮助B细胞成为抗体分泌细胞
-
So not all of the B-cells that are stimulated become plasma cells or antibody secreting cells.
所以,并不是所有的B淋巴细胞,被刺激分化成为,浆细胞或是抗体分泌细胞
-
In the case of the helper cells they stimulate a specific population of B-cells to mature into antibody producing cells, and that antibody is generated against the antigen that stimulated it.
以辅助性T细胞为例,辅助性T细胞刺激特定的B细胞,使这些细胞成长为抗体分泌细胞,抗体分泌细胞产生大量的抗体,以消灭大量增殖的抗原
-
The memory cells, which are stimulated, lead to an IgG response and that's why IgG is the antibody of-- that is produced predominantly after the boost, but there is some IgM produced also.
记忆细胞受到刺激之后,可以诱发分泌IgG的应答反应,这也是为什么IgG,是接种疫苗后产生的主要抗体,与此同时也刺激产生了一些IgM
应用推荐