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A Syngeneic Mouse Model of Metastatic Renal Cell Carcinoma for Quantitative and Longitudinal Assessment of Preclinical Therapies
Published on: April 12, 2017
Renal involvement in solid cancers: epidemiological, clinical and histological characteristics study of 154
Victor Gueutin1,2, Aurore Cardineau3, Alexis Mathian4
1Service de néphrologie-dialyse-transplantation CHU de CAEN, Côte de Nacre, Caen, France. gueutin-v@chu-caen.fr.
Background:
Onconephrology is a growing discipline that aims to improve the management of patients with cancer and kidney disease. If kidney histology is an essential key, the anatomopathological data remain weak although essential to this complex management.
Methods:
Patients with active cancer who had a kidney biopsy (KB) between 2014 and 2020 were included, and their clinicobiological and histological data were analyzed retrospectively.
Results:
Our cohort consisted of 154 patients (83 women) with a mean age of 58 years. One hundred twelve patients presented with proteinuria, 95 with acute kidney injury, and 59 with arterial hypertension. Histologically, interstitial fibrosis was found in 74% of KBs, tubular atrophy in 55.1%, arteriolar hyalinosis in 58.4%, and fibrous endarteritis in 54.4%. Regarding the main acute lesions, thrombotic microangiopathy (TMA) was found in 29.9% of biopsies, acute tubular necrosis (ATN) in 51.3%, and acute interstitial nephritis in 24.8%. The etiological diagnosis most often made was the nephrotoxicity of anticancer drugs (87 patients), followed by a pre-renal (15 patients) and kidney disease unrelated to cancer (13 patients). Sixty-seven patients presented with at least 2 associated diagnoses reflecting the complexity of kidney damage in cancer. Different clusters were found, highlighting that immunotherapy and anti-VEGF were the most commonly involved drugs.
Conclusions:
During onconephrology practice, kidney toxicity of treatments is the most common etiology. Several mechanisms can be involved, underscoring the importance of kidney biopsy and the complexity of its management. Chronic histological lesions were very common.
Insights
Cancer patients often experience kidney damage from treatments. Kidney biopsies reveal common chronic lesions and drug toxicity, highlighting the need for specialized onconephrology care.
Area of Science:
- Oncology
- Nephrology
- Pathology
Background:
- Onconephrology addresses cancer and kidney disease management.
- Accurate kidney histology is crucial but often lacking.
- Anatomopathological data are vital for complex patient care.
Purpose of the Study:
- To analyze clinicobiological and histological data from kidney biopsies in cancer patients.
- To identify common kidney pathologies and etiological diagnoses in onconephrology.
Main Methods:
- Retrospective analysis of 154 patients with active cancer undergoing kidney biopsy (KB) between 2014-2020.
- Evaluation of clinicobiological and histological findings.
Main Results:
- Common findings include proteinuria (72%), acute kidney injury (61%), and hypertension (38%).
- Histology showed high rates of interstitial fibrosis (74%) and tubular atrophy (55%).
- Nephrotoxicity from anticancer drugs was the primary cause (56%), with immunotherapy and anti-VEGF agents frequently implicated.
Conclusions:
- Kidney toxicity of cancer treatments is the leading cause of kidney disease in onconephrology.
- Multiple underlying mechanisms and associated diagnoses complicate kidney damage management.
- Chronic histological lesions are prevalent, emphasizing the importance of kidney biopsy.
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