ArticleMediterranean journal of rheumatology2025
Clinical Profile and Outcomes in Anti-TIF1γ Positive Idiopathic Inflammatory Myositis Patients: A Greek Cohort Study.
Article in Mediterranean journal of rheumatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Cancer-associated myositis: a single-centre 20-year experience.Clinical rheumatology · 2026Article
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7 authors.
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Abstract
Background: Anti-transcription intermediary factor 1-gamma (anti-TIF1γ) antibodies are closely associated with Inflammatory myositis (IIM) and cancer-associated myositis. Objective: Description of clinical characteristics of anti-TIF1γ(+) IIM patients in a Greek population. Material & Methods: Retrospective analysis with 113 IIM cases between 2001 and 2024 was performed and clinical and laboratory data were collected. Disease manifestations and outcomes were compared between anti-TIF1γ-positive and -negative groups. Results: Twenty patients (17.7%) were anti-TIF1γ(+), of which 70% were women. The mean age was 64.8 ± 12.5 years vs 59.61 ± 12.81 of anti-TIF1γ(-) patients (p>0.05). Anti-TIF1γ was strongly associated with Dermatomyositis (DM) (95%, p < 0.001) and more severe cutaneous involvement (mean CDASI=27.35 ± 15.01 vs 14 ± 12.25 p =0.0015). Malignancy was significantly more frequent in the anti-TIF1γ(+) group (60% vs. 20.4%, p = 0.001), with an odds ratio of 5.84 (95% CI 2.09-16.31). Logistic regression identified anti-TIF1γ positivity as independent predictor of malignancy. Interstitial Lung Disease was uncommon among anti-TIF1γ(+) cases (15%, p = 0.004), while dysphagia was far more prevalent (55% vs. 22.6%, p = 0.001). Muscle power (MMT-8score) and CPK levels did not differ significantly, and survival was lower in anti-TIF1γ(+) patients (55.7% vs. 82.6% p<0.001), associated with malignancy. Conclusions: In our cohort, anti-TIF1γ antibodies define a distinct IIM subset marked by severe skin disease, high malignancy risk, and poorer survival, supporting comprehensive cancer screening and tailored immunosuppressive treatment. This study describes this phenotype in a Greek cohort, aligning with international evidence and highlighting the need for collaborative studies.
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