Vincristine-induced neurotoxicity in pediatric patients with rhabdomyosarcoma: A retrospective analysis of clinical features and outcome

Dakik, Lama; Basbous, Maya; Tamim, Hani; Moubarak, Yacoub; Tarek, Nidale; Hamideh, Dima; Muwakkit, Samar; Abboud, Miguel R.; Saab, Raya

doi:10.1080/08880018.2022.2047849

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…In males, vincristine was the only interacting drug shared between M-AD and M-asymAD switch genes. Vincristine is a chemotherapeutic drug for several cancers known to cause motor neurotoxicity and neuropathies ( van de Velde et al, 2021 ; Dakik et al, 2022 ). The finding of a chemotherapeutic may also be related to the cancer-associated pathways and transcription factors regulating the switch genes identified in males.…”

Section: Discussionmentioning

confidence: 99%

Sex-specific transcriptional rewiring in the brain of Alzheimer’s disease patients

Santiago¹,

Quinn²,

Potashkin

2022

Front. Aging Neurosci.

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Sex-specific differences may contribute to Alzheimer’s disease (AD) development. AD is more prevalent in women worldwide, and female sex has been suggested as a disease risk factor. Nevertheless, the molecular mechanisms underlying sex-biased differences in AD remain poorly characterized. To this end, we analyzed the transcriptional changes in the entorhinal cortex of symptomatic and asymptomatic AD patients stratified by sex. Co-expression network analysis implemented by SWItchMiner software identified sex-specific signatures of switch genes responsible for drastic transcriptional changes in the brain of AD and asymptomatic AD individuals. Pathway analysis of the switch genes revealed that morphine addiction, retrograde endocannabinoid signaling, and autophagy are associated with both females with AD (F-AD) and males with (M-AD). In contrast, nicotine addiction, cell adhesion molecules, oxytocin signaling, adipocytokine signaling, prolactin signaling, and alcoholism are uniquely associated with M-AD. Similarly, some of the unique pathways associated with F-AD switch genes are viral myocarditis, Hippo signaling pathway, endometrial cancer, insulin signaling, and PI3K-AKT signaling. Together these results reveal that there are many sex-specific pathways that may lead to AD. Approximately 20–30% of the elderly have an accumulation of amyloid beta in the brain, but show no cognitive deficit. Asymptomatic females (F-asymAD) and males (M-asymAD) both shared dysregulation of endocytosis. In contrast, pathways uniquely associated with F-asymAD switch genes are insulin secretion, progesterone-mediated oocyte maturation, axon guidance, renal cell carcinoma, and ErbB signaling pathway. Similarly, pathways uniquely associated with M-asymAD switch genes are fluid shear stress and atherosclerosis, FcγR mediated phagocytosis, and proteoglycans in cancer. These results reveal for the first time unique pathways associated with either disease progression or cognitive resilience in asymptomatic individuals. Additionally, we identified numerous sex-specific transcription factors and potential neurotoxic chemicals that may be involved in the pathogenesis of AD. Together these results reveal likely molecular drivers of sex differences in the brain of AD patients. Future molecular studies dissecting the functional role of these switch genes in driving sex differences in AD are warranted.

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Section: Discussionmentioning

confidence: 99%