A unique feature of iron loss via close adhesion of Helicobacter pylori to host erythrocytes.

A unique feature of iron loss via close adhesion of Helicobacter pylori to host erythrocytes.
复制标题

通过幽门螺杆菌与宿主红细胞的紧密粘附而导致铁损失的独特特征。

DOI:
10.1371/journal.pone.0050314
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Yu Y
Yu Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wang Z;Zhang L;Guo Z;Liu L;Ji J;Zhang J;Chen X;Liu B;Zhang J;Ding Q;Wang X;Zhao W;Zhu Z;Yu Y

文献摘要

参考文献

相似文献

缺铁性贫血是幽门螺杆菌携带者经历的胃外疾病。 A型血的人比其他人更容易感染幽门螺杆菌。为了阐明幽门螺杆菌相关贫血的分子机制,我们收集了 A、B、O 和 AB 献血者的红细胞,并通过光学显微镜、扫描电子显微镜和同步辐射软 X 射线成像分析了形态、附着有幽门螺杆菌集落的红细胞数量以及红细胞和幽门螺杆菌(NCTC11637 和 SS1 菌株)中的铁含量。附着H. pylori的A型红细胞数量显着高于其他红细胞(P<0.05)。通过软 X 射线成像,使用铁 L2、3 边缘附近的双能量分析,在幽门螺杆菌中观察到更多的铁分布。接触幽门螺杆菌 4 小时后,宿主红细胞中的铁含量显着降低。幽门螺杆菌能够更牢固地粘附在 A 型红细胞上,这与铁从宿主转移到细菌有关。这可能解释了 A 型血个体难治性缺铁性贫血和幽门螺杆菌感染易感性升高的原因。
Iron deficiency anemia is an extra-stomach disease experienced in H. pylori carriers. Individuals with type A blood are more prone to suffering from H. pylori infection than other individuals. To clarify the molecular mechanisms underlying H. pylori-associated anemia, we collected erythrocytes from A, B, O, and AB blood donors and analyzed morphology, the number of erythrocytes with H. pylori colonies attached to them, and iron contents in erythrocytes and H. pylori (NCTC11637 and SS1 strains) by means of optical microscopy, scanning electron microscopy, and synchrotron radiation soft X-ray imaging. The number of type A erythrocytes with H. pylori attached to them was significantly higher than that of other erythrocytes (P<0.05). Far more iron distribution was observed in H. pylori bacteria using dual energy analysis near the iron L2, 3 edges by soft X-ray imaging. Iron content was significantly reduced in host erythrocytes after 4 hours of exposure to H. pylori. H. pylori are able to adhere more strongly to type A erythrocytes, and this is related to iron shift from the host to the bacteria. This may explain the reasons for refractory iron deficiency anemia and elevated susceptibility to H. pylori infection in individuals with type A blood.
幽门螺杆菌中的铁运输系统
DOI: 10.1007/s10534-011-9512-8
发表时间: 2012-04-01
期刊: BIOMETALS
影响因子: 3.5
作者:
Ge, Ruiguang;Sun, Xuesong
通讯作者: Sun, Xuesong
DOI: 10.1128/jb.177.9.2305-2314.1995
发表时间: 1995-05-01
影响因子: 3.2
作者:
TOUATI, D;JACQUES, M;DESPIED, S
通讯作者: DESPIED, S
DOI: 10.1007/bf02072207
发表时间: 1991-06-01
影响因子: 3.6
作者:
BLECKER, U;RENDERS, F;VANDENPLAS, Y
通讯作者: VANDENPLAS, Y
DOI: 10.1001/jama.291.2.187
发表时间: 2004-01-14
影响因子: 120.7
作者:
Wong, BCY;Lam, SK;Chen, JS
通讯作者: Chen, JS
DOI: 10.1073/pnas.96.22.12778
发表时间: 1999-10-26
影响因子: 11.1
作者:
Gerhard, M;Lehn, N;Prinz, C
通讯作者: Prinz, C