Idiopathic pulmonary fibrosis pathophysiology: Difference between revisions
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* Collagen is produced by fibroblasts which also can degrade some of the collagen produced. | * Collagen is produced by fibroblasts which also can degrade some of the collagen produced. | ||
* Metalloproteinases produced by fibroblasts, neutrophils, and macrophages have the main role in degrading collagen. | * Metalloproteinases produced by fibroblasts, neutrophils, and macrophages have the main role in degrading collagen. | ||
=== Pathogenesis === | |||
* Pathogenesis of the pulmonary fibrosis characterized by a chronic pattern of excessive fibrosis in the lung tissue which leads to decrease the working space of lungs.<ref name="pmid21471066">{{cite journal| author=Raghu G, Collard HR, Egan JJ, Martinez FJ, Behr J, Brown KK et al.| title=An official ATS/ERS/JRS/ALAT statement: idiopathic pulmonary fibrosis: evidence-based guidelines for diagnosis and management. | journal=Am J Respir Crit Care Med | year= 2011 | volume= 183 | issue= 6 | pages= 788-824 | pmid=21471066 | doi=10.1164/rccm.2009-040GL | pmc=5450933 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21471066 }} [https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21690586 Review in: Ann Intern Med. 2011 Jun 21;154(12):JC6-8]</ref> | |||
* The core mechanisms of developing pulmonary fibrosis are how the fibrosis take place and collagen metabolism disorder. | |||
==== Fibrosis ==== | |||
==Genetics== | ==Genetics== | ||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmed Elsaiey, MBBCH [2]
Overview
Pathophysiology
Normal lung tissue
- Lungs are composed normally of extracellular collagen which allows the lungs to exert their breathing efforts.
- Different collagen types in the lung include the following:[1]
- Type 1 and type 3 compose most of the lung tissue
- Type 2 is the main component of the cartilage of the main bronchi
- Type 4 forms the basement membrane
- Type 5 forms the interstitial tissue
- Normally, collagen is degraded and produced regularly to preserve the normal lung tissue.[2]
- Collagen is produced by fibroblasts which also can degrade some of the collagen produced.
- Metalloproteinases produced by fibroblasts, neutrophils, and macrophages have the main role in degrading collagen.
Pathogenesis
- Pathogenesis of the pulmonary fibrosis characterized by a chronic pattern of excessive fibrosis in the lung tissue which leads to decrease the working space of lungs.[3]
- The core mechanisms of developing pulmonary fibrosis are how the fibrosis take place and collagen metabolism disorder.
Fibrosis
Genetics
Microscopic pathology
Gross pathology
References
- ↑ van der Rest M, Garrone R (1991). "Collagen family of proteins". FASEB J. 5 (13): 2814–23. PMID 1916105.
- ↑ Laurent GJ (1982). "Rates of collagen synthesis in lung, skin and muscle obtained in vivo by a simplified method using [3H]proline". Biochem J. 206 (3): 535–44. PMC 1158621. PMID 7150261.
- ↑ Raghu G, Collard HR, Egan JJ, Martinez FJ, Behr J, Brown KK; et al. (2011). "An official ATS/ERS/JRS/ALAT statement: idiopathic pulmonary fibrosis: evidence-based guidelines for diagnosis and management". Am J Respir Crit Care Med. 183 (6): 788–824. doi:10.1164/rccm.2009-040GL. PMC 5450933. PMID 21471066. Review in: Ann Intern Med. 2011 Jun 21;154(12):JC6-8