Evidence map›Paper›PMID 42181556›Full record

ArticleMayo Clinic proceedings. Digital health2026

Data-Driven Stratification Reveals 3 Distinct Clinicopathologic Phenotypes in Renal Thrombotic Microangiopathy.

Simon Moubarak, Jing Miao, Mariam Priya Alexander, Jaleh Zand, Mireille El Ters, Ladan Zand

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Article in Mayo Clinic proceedings. Digital health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Simon MoubarakDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
Jing MiaoDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
Mariam Priya AlexanderDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
Jaleh ZandDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
Mireille El TersDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
Ladan ZandDivision of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To define phenotypic subgroups of thrombotic microangiopathy (TMA) by integrating clinicopathologic data to identify patterns suggestive of pathogenic features and etiologies. Patients and Methods: We retrospectively analyzed 283 patients with biopsy-confirmed renal TMA between January 1, 2010, and December 31, 2020. Sixty-four clinicopathologic variables were applied in consensus clustering. Results: Three distinct clusters were identified. Cluster 1 (n=78), predominantly women (n=50, 64%), was enriched for drug-induced (n=23, 29%), lupus-associated (n=9, 12%), and post-bone marrow transplant TMA (n=8, 10%). It showed wide immune-complex staining (IgM, C3, κ, and λ) and subendothelial deposits (n=16, 21%), suggestive of immune-associated injury. Cluster 2 (n=92) included the oldest patients (54±18 years) and was dominated by drug-induced TMA (n=21, 23%; one-third owing to vascular endothelial growth factor inhibitor bevacizumab) and monoclonal gammopathy-associated TMA (n=10, 11%). It showed marked endothelial damage (n=65, 71%) and mesangiolysis (n=66, 72%) with little immune staining, suggesting a toxic-related injury. Cluster 3 (n=113) exhibited the worst outcomes, with 80% (24/30) progressing to renal failure, compared with 31% (12/39) in cluster 1 and 34% (16/47) in cluster 2. This cluster was characterized by the youngest age (45±14 years), mostly males (n=67, 59%), severe hypertension (n=75, 66%), and low estimated glomerular filtration rate (10 mL/min/1.73 m Conclusion: Integrative clustering of clinical and histologic data in TMA identified 3 clinicopathologic phenotypes that may suggest underlying immune-, toxic-, or severe vascular lesion-related drivers. These findings support data-driven classification that may help prioritize diagnostic and therapeutic considerations.

Identifiers

PMID42181556
PMCPMC13194549

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