NDLI: Clinical implications of dysregulated cytokine production

Content Provider	Springer Nature Link
Author	Slifka, Mark K. Whitton, J. Lindsay
Copyright Year	2000
Abstract	Cytokines are soluble proteins that are produced and secreted as part of the immune response to a variety of tissue insults including infection, cancer, and autoimmunity. Most cytokines are secreted by cells of the immune system, but some (for example, type I interferons) are released from "nonimmunological" cells such as fibroblasts and epithelial cells. Cytokines have pleiotropic effects, acting on many somatic cell types to modulate the host's immune response. For the most part, cytokines exert their antimicrobial actions locally – they are secreted by cells in the area of infection, and their effects are restricted to neighboring cells. While many of their local effects benefit the host, cytokines are soluble molecules that may act systemically and are often responsible for many of the symptoms of infection (e.g., headache, fever, myalgia). In high concentrations they can be toxic, or even lethal. Human clinical trials involving the systemic injection of purified cytokines such as interleukins 2 and 12 and tumor necrosis factor α provide compelling evidence for the toxicity of these molecules. Likewise, studies of septic shock syndrome demonstrate how overproduction/aberrant production of inflammatory cytokines can lead to rapid mortality. The host may attempt to counter high cytokine levels by releasing soluble cytokine receptors (sCR) or by synthesizing high-affinity anti-cytokine antibodies (acAb), and these natural responses have spawned great interest as potential therapeutic approaches for alleviating cytokine-mediated disease. However, recent studies indicate that these in vivo interactions are much more complex than previously realized; administration of sCR or acAb may either inhibit or (paradoxically) enhance cytokine activity. An alternative therapeutic approach is to intervene at the source of cytokine production. T cells initiate cytokine production only upon antigen contact and terminate synthesis almost immediately after this contact is broken. Thus T cells secrete cytokines specifically at sites of infection and do not continuously produce these potentially toxic molecules while migrating through uninfected tissues or the bloodstream. By learning more about the molecular mechanisms involved with on/off regulation of cytokine production we may be able to develop novel therapeutic drugs to protect against cytokine-mediated immunopathology. This review discusses the regulation of cytokine function by sCR and acAb and compares this to the regulatory mechanisms that are associated with antigen-specific cytokine release by T cells.
Starting Page	74
Ending Page	80
Page Count	7
File Format	PDF
ISSN	09462716
Journal	Journal of Molecular Medicine
Volume Number	78
Issue Number	2
e-ISSN	14321440
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-03-01
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Molecular Medicine Human Genetics Internal Medicine
Content Type	Text
Resource Type	Article
Subject	Drug Discovery Molecular Medicine Genetics (clinical)

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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