Cancer in myositis

There is an intriguing relationship between cancer and myositis. The immunosuppressive agents commonly used to treat myositis patients are known to favor the development of cancer, but this factor does not seem to be the main cause of the association. Most myositis patients who develop cancer are co...

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Main Authors: Albert Selva-O'Callaghan, Maria Terrones-Peinador, Joana Rita Marques-Soares, Albert Gil-Vila
Format: Article
Language:English
Published: SAGE Publishing 2020-01-01
Series:Indian Journal of Rheumatology
Subjects:
Online Access:http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=131;epage=136;aulast=Selva-O'Callaghan
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author Albert Selva-O'Callaghan
Maria Terrones-Peinador
Joana Rita Marques-Soares
Albert Gil-Vila
author_facet Albert Selva-O'Callaghan
Maria Terrones-Peinador
Joana Rita Marques-Soares
Albert Gil-Vila
author_sort Albert Selva-O'Callaghan
collection DOAJ
description There is an intriguing relationship between cancer and myositis. The immunosuppressive agents commonly used to treat myositis patients are known to favor the development of cancer, but this factor does not seem to be the main cause of the association. Most myositis patients who develop cancer are considered to have cancer-associated myositis, which suggests that there are some types of etiopathogenic relationship between these two conditions. The malignancy usually appears within 3 years of the myositis diagnosis, and the risk of cancer depends on the myositis phenotype, with classic or amyopathic dermatomyositis (DM) and immune-mediated necrotizing myopathy being the main associated phenotypes. Several considerations regarding the pathogenesis of this association and strategies to detect occult malignancy in these patients are discussed here, with special emphasis on the role of autoantibodies as markers of this condition. Anti- TIF1g (Transcription Intermediary Factor 1 gamma) antibodies have been extensively studied in patients with cancer-associated DM. In addition, we discuss the peculiarities of treating patients with cancer-associated myositis and suggest some good treatment options, and finally, we examine the cancer–myositis relationship with regard to the recently described concept of myositis as an immune-related adverse event derived from the use of checkpoint immune inhibitors to treat cancer.
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spelling doaj-art-d1427e0d945b46f9a5bda8b7ae82cae52025-02-03T12:00:44ZengSAGE PublishingIndian Journal of Rheumatology0973-36980973-37012020-01-0115613113610.4103/injr.injr_168_20Cancer in myositisAlbert Selva-O'CallaghanMaria Terrones-PeinadorJoana Rita Marques-SoaresAlbert Gil-VilaThere is an intriguing relationship between cancer and myositis. The immunosuppressive agents commonly used to treat myositis patients are known to favor the development of cancer, but this factor does not seem to be the main cause of the association. Most myositis patients who develop cancer are considered to have cancer-associated myositis, which suggests that there are some types of etiopathogenic relationship between these two conditions. The malignancy usually appears within 3 years of the myositis diagnosis, and the risk of cancer depends on the myositis phenotype, with classic or amyopathic dermatomyositis (DM) and immune-mediated necrotizing myopathy being the main associated phenotypes. Several considerations regarding the pathogenesis of this association and strategies to detect occult malignancy in these patients are discussed here, with special emphasis on the role of autoantibodies as markers of this condition. Anti- TIF1g (Transcription Intermediary Factor 1 gamma) antibodies have been extensively studied in patients with cancer-associated DM. In addition, we discuss the peculiarities of treating patients with cancer-associated myositis and suggest some good treatment options, and finally, we examine the cancer–myositis relationship with regard to the recently described concept of myositis as an immune-related adverse event derived from the use of checkpoint immune inhibitors to treat cancer.http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=131;epage=136;aulast=Selva-O'Callaghananti-tif1gcancer-associated myositisdermatomyositisimmune-mediated necrotizing myopathy
spellingShingle Albert Selva-O'Callaghan
Maria Terrones-Peinador
Joana Rita Marques-Soares
Albert Gil-Vila
Cancer in myositis
Indian Journal of Rheumatology
anti-tif1g
cancer-associated myositis
dermatomyositis
immune-mediated necrotizing myopathy
title Cancer in myositis
title_full Cancer in myositis
title_fullStr Cancer in myositis
title_full_unstemmed Cancer in myositis
title_short Cancer in myositis
title_sort cancer in myositis
topic anti-tif1g
cancer-associated myositis
dermatomyositis
immune-mediated necrotizing myopathy
url http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=131;epage=136;aulast=Selva-O'Callaghan
work_keys_str_mv AT albertselvaocallaghan cancerinmyositis
AT mariaterronespeinador cancerinmyositis
AT joanaritamarquessoares cancerinmyositis
AT albertgilvila cancerinmyositis