ArticleTranslational cancer research2020
Clinicopathological characteristics and treatment outcome in obese patients with diffuse large B-cell lymphoma.
Article in Translational cancer research, 2020. 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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Abstract
backgroundAberrant MYC and BCL2 expression, cell of origin (COO), and National Comprehensive Cancer Network international prognostic index (NCCN-IPI) are commonly used for risk assessment and treatment decision in patients with diffuse large B-cell lymphoma (DLBCL). Although obesity has been shown to be of predictive value in DLBCL patients, it remains unclear whether it retains its prognostic relevance after those aforementioned novel factors being taken into consideration.
methodsPatients with DLBCL were identified retrospectively in a single institute and data were collected through electronic databases and pharmacy records.
resultsFifteen (17.6%) out of the 85 patients with DLBCL in our cohort were categorized as obese. They had lower platelet counts, were younger and more likely to harbor either BCL2- or MYC-overexpressing tumors. The NCCN-IPI scores, COO, and other clinical parameters were not significantly different between obese and non-obese patients. In spite that obesity adversely affected the treatment response to immunochemotherapy, multivariate analysis showed that only NCCN-IPI risk categories [hazard ratio (HR) 2.83 for high-intermediate or high-risk, versus low-intermediate or low-risk, P=0.034] and BCL2/MYC expressional status (HR 4.12 for BCL2high and/or MYChigh, versus both low expressors, P=0.004) independently predicted progression-free survival (PFS) outcome, whereas obesity lost its prognostic value in this regard (HR 1.81 for obese patients, P=0.242). Similarly, high-intermediate to high NCCN-IPI risk (HR 3.11, P=0.034) and increased expression in either BCL2 or MYC (HR 5.63, P=0.001) both portended an inferior overall survival (OS), but the presence of obesity did not affect the outcome (HR 1.65, P=0.352).
conclusionsOur study has demonstrated that, for the first time, obesity increases the frequency of BCL2- or MYC-overexpressing tumors in patients with DLBCL.
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