Columnar epithelial cells from the colonic mucosa are studied to identify abnormalities in cell signaling pathways. Abnormal epithelial cells from colonic adenocarcinoma are shown to have a mutatio...
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http://www.histopathology-india.net/Norwegian_Scabies.htm #dermatopathology #dermpath #pathology #histopathology #infectiousdisease #infection #pathologist ...
2.Poland-Lithuania-Ukraine
¿Qué Oculta la IZQUIERDA sobre la República Española?: TERROR en PARACUELLOSEn este video exploramos uno de los episodios más trágicos y silenciados de la G...
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Manuscript: BL Additional 17341 Gospel Lectionary, Use of Paris Folio 135r Dating 1275-1300 From Paris, France Holding Institution British Library Source
Brain organoids could be the key to understanding brain diseases, which is why we should think carefully about how far we are prepared to take them.
The functions of the complement system are diverse and extend beyond its role in host defence; complement activation is now known to contribute to numerous immunological, inflammatory and age-related conditions, including kidney disorders. Here, John Lambris and colleagues discuss the key activating, regulatory, and effector mechanisms of the complement system. They highlight important crosstalk connections with other regulatory systems, and, with a focus on kidney disease and transplantation, describe the involvement of complement in clinical conditions as well as promising therapeutic approaches. Although the complement system is primarily perceived as a host defence system, a more versatile, yet potentially more harmful side of this innate immune pathway as an inflammatory mediator also exists. The activities that define the ability of the complement system to control microbial threats and eliminate cellular debris — such as sensing molecular danger patterns, generating immediate effectors, and extensively coordinating with other defence pathways — can quickly turn complement from a defence system to an aggressor that drives immune and inflammatory diseases. These host-offensive actions become more pronounced with age and are exacerbated by a variety of genetic factors and autoimmune responses. Complement can also be activated inappropriately, for example in response to biomaterials or transplants. A wealth of research over the past two decades has led to an increasingly finely tuned understanding of complement activation, identified tipping points between physiological and pathological behaviour, and revealed avenues for therapeutic intervention. This Review summarizes our current view of the key activating, regulatory, and effector mechanisms of the complement system, highlighting important crosstalk connections, and, with an emphasis on kidney disease and transplantation, discusses the involvement of complement in clinical conditions and promising therapeutic approaches.
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