Ontology highlight
ABSTRACT:
PROVIDER: PRJNA765675 | ENA |
REPOSITORIES: ENA
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Project description:Phosphodiesterase 10A (PDE10A), by degrading cAMP/cGMP, play critical roles in cardiovascular biology/disease. Cardiotoxicity is a clinical complication of chemotherapy. We aim to determine the role of PDE10A in cancer growth and cardiotoxicity induced by doxorubicin (DOX), a chemotherapy drug. We found that PDE10A deficiency/inhibition alleviated DOX-induced cardiotoxicity in C57Bl/6J mice, including myocardial atrophy, apoptosis, and dysfunction. RNAseq study revealed several PDE10A-regulated signaling associated with DOX-induced cardiotoxicity. In cancer cells, PDE10A inhibition increased the death, decreased the proliferation, and potentiated the effect of DOX in various cancer-cell lines. Importantly, in nude mice with implanted ovarian cancer xenografts, PDE10A inhibition attenuated tumor growth while protected against DOX-induced cardiotoxicity. In isolated cardiomyocytes (CMs), PDE10A contributed to DOX-induced CM death via promoting mitochondrial dysfunction, and to CM atrophy via potentiating foxo3 signaling. Collectively, our study elucidates a novel role for PDE10A in cardiotoxicity and cancer growth in vitro and in vivo, and suggest that PDE10A inhibition may represent a novel strategy in cancer therapy.
2023-06-22 | GSE224157 | GEO
Project description:This study aimed to determine whether methylation signature of peripheral blood mononuclear cells (PBMCs) prior to the start of the first cycle of DOX-based chemotherapy could predict the risk of cardiotoxicity in breast cancer patients as well as determine if DOX treatment changed methlation profiles. The Illumina Infinium 450 Human DNA methylation Beadchip was used to obtain DNA methylation profiles across approximately 450k CpGs PBMCs samples before and after treatment. Samples included 10 samples from patients with normal ejection fraction after DOX treatment, 9 samples from patients with abnormal ejection fraction (indicative of cardiotoxicity) after DOX treatment.
2021-12-29 | GSE178887 | GEO
Project description:Cardiotoxicity is serious adverse reaction of cancer chemotherapy and may lead to critical heart damage. Imatinib mesylate (IMB), a selective tyrosine kinase inhibitor, is sometimes accompanied by severe cardiovascular complications. To minimize the risk, early biomarkers of such complications are of utmost importance. MicroRNAs (miRNAs) are, nowadays intensively studied as potential biomarkers of many pathological processes. Many miRNAs appear to be specific in some tissues, including heart. Here, we have explored the potential of specific miRNAs to be early markers of IMB-induced cardiotoxicity. Doxorubicin (DOX), an anthracycline with well-known cardiotoxicity, was used for comparison. NMRI mice were treated with IMB or DOX for nine days in doses corresponding to the highest recommended doses in oncological patients. Then, plasmatic levels of miRNAs were analyzed by miRNA microarrays and selected cardio-specific miRNAs were quantified using qPCR. The plasmatic level of miR-1a, miR-133a, miR-133b, miR-339, miR-7058, miR-6236 and miR-6240 were the most different between IMB-treated and control mice. Interestingly, most of the miRNAs affected by DOX were also affected by IMB with the same trends. Concerning selected microRNAs in hearts of individual mice, only miR-34a was significantly increased after DOX treatment and only miR-205 was significantly decreased after IMB and DOX treatment. However, changes in any miRNA expression did not correlate with level of troponin T, classical marker of heart injury.
2020-01-01 | GSE121275 | GEO
Project description:Doxorubicin (DOX) is the cornerstone of chemotherapy regimens for many malignancies, but its clinical usage is limited by severe cardiotoxicity. Accumulating evidence suggest that nicotinamide adenine dinucleotide (NAD+) depletion contributes to DOX-induced cardiotoxicity, making NAD+ boosting an appealing strategy. Nicotinamide mononucleotide (NMN) is an NAD+ precursor that shows promising therapeutic effects in various diseases. To understand the impact of NMN on gene expression in myocardial tissue of DOX-exposed mice, a RNA-seq assay was carried out.
2023-06-03 | GSE233644 | GEO
Project description:The chemotherapeutic doxorubicin (DOX) detrimentally impacts the heart during cancer treatment. This necessitates development of non-cardiotoxic delivery systems that retain DOX anticancer efficacy. We utilized human induced pluripotent stem cell-derived multi-lineage cardiac spheroids (hiPSC-CSs) to compare the anticancer efficacy and reduced cardiotoxicity of single protein encapsulated doxorubicin (SPEDOX-6), to standard unformulated (UF) DOX using RNA-sequencing. The cardiac spheroids are comprised of hiPSC-derived cardiomyocytes (hiPSC-CMs), hiPSC-derived endothelial cells (ECs), and hiPSC-derived cardiac fibroblasts (CFs) at an 8:1:1 ratio.
2023-07-01 | GSE235470 | GEO
Project description:Anthracyclines such as doxorubicin (Dox) are effective chemotherapeutic agents, however their use is hampered by subsequent cardiotoxicity risk. Our understanding of cardiomyocyte protective pathways activated following anthracycline-induced cardiotoxicity (AIC) remains incomplete. Insulin-like growth factor binding protein (IGFBP) 3 (Igfbp-3), the most abundant IGFBP family member in the circulation, is associated with effects on the metabolism, proliferation, and survival of various cells. Whereas Igfbp-3 is induced by Dox in the heart, its role in AIC is ill-defined. We investigated molecular mechanisms as well as systems-level transcriptomic consequences of manipulating Igfbp-3 in AIC using neonatal rat ventricular myocytes and human induced pluripotent stem cell-derived cardiomyocytes.
2022-06-28 | GSE206803 | GEO
Project description:Doxorubicin (Dox) poses a considerable threat to patients owing to its cardiotoxicity, thus limiting its clinical utility. Optimal cardioprotective intervention strategies are needed to suppress tumor growth but also minimize cardiac side effects. Here, we showed that tVNS improved the imbalanced autonomic tone, ameliorated impaired cardiac function and fibrosis, attenuated myocyte apoptosis, and mitochondrial dysfunction compared to those in the Dox group. The beneficial effects were attenuated by methyllycaconitine citrate (MLA). The transcript profile revealed that there were 248 differentially expressed genes and the protection of tVNS and retardation of MLA were related to inflammatory response and NADPH oxidase activity. In addition, tVNS synergizing with Dox inhibited tumor growth and lung metastasis and promoted apoptosis of tumor cells in an anti-tumor immunity manner. These results indicated that non-invasive neuromodulation can play a dual role in preventing Dox-induced cardiotoxicity and suppressing tumor growth through inflammation and oxidative stress.
2024-01-28 | GSE253959 | GEO
Project description:TOP2 inhibitors (TOP2i) are effective drugs for breast cancer treatment. However, they can cause cardiotoxicity in some women. The most widely used TOP2i include anthracyclines (AC) Doxorubicin (DOX), Daunorubicin (DNR), Epirubicin (EPI), and the anthraquinone Mitoxantrone (MTX). It is unclear whether women would experience the same adverse effects from all drugs in this class, or if specific drugs would be preferable for certain individuals based on their cardiotoxicity risk profile. To investigate this, we studied the effects of treatment of DOX, DNR, EPI, MTX, and an unrelated monoclonal antibody Trastuzumab (TRZ) on iPSC-derived cardiomyocytes (iPSC-CMs) from six healthy females. All TOP2i induce cell death at concentrations observed in cancer patient serum, while TRZ does not. A sub-lethal dose of all TOP2i induces limited cellular stress but affects calcium handling, a function critical for cardiomyocyte contraction. TOP2i induce thousands of gene expression changes over time, giving rise to four distinct gene expression response signatures, denoted as TOP2i early-acute, early-sustained, and late response genes, and non-response genes. There is no drug- or AC-specific signature. TOP2i early response genes are enriched in chromatin regulators, which mediate AC sensitivity across breast cancer patients. However, there is increased transcriptional variability between individuals following AC treatments. To investigate potential genetic effects on response variability, we first identified a reported set of expression quantitative trait loci (eQTLs) uncovered following DOX treatment in iPSC-CMs. Indeed, DOX response eQTLs are enriched in genes that respond to all TOP2i. Next, we identified 38 genes in loci associated with AC toxicity by GWAS or TWAS. Two thirds of the genes that respond to at least one TOP2i, respond to all ACs with the same direction of effect. Our data demonstrate that TOP2i induce thousands of shared gene expression changes in cardiomyocytes, including genes near SNPs associated with inter-individual variation in response to DOX treatment and AC-induced cardiotoxicity.
2024-02-01 | GSE243674 | GEO
Project description:The use of anthracycline antibiotics such as doxorubicin (DOX) has greatly improved the mortality and morbidity of cancer patients. However, the associated risk of cardiomyopathy has limited their clinical application. DOX-associated cardiotoxicity is irreversible and progresses to heart failure (HF). For this reason, a better understanding of the molecular mechanisms underlying these adverse cardiac effects is essential to develop improved regimes that include cardioprotective strategies. MicroRNAs (miRNAs) are short non-coding RNAs that are able to post-trascriptionally regulate gene expression. MiRNAs have been demonstrated to be involved in both cancer and cardiovascular disease. Therefore, we were interested in unveiling the potential role of miRNAs in chemotherapy-induced HF. We used a combination of three different models to recreate this cardiac toxicity (acute in vitro DOX treatment, DOX-induced HF in vivo and a myocardial infarction -MI- leading to failure model) to study the pattern of dysregulated miRNAs. Using RNA from all three conditions, miRNA microarray profiling was performed and a common miRNA signature was identified. Interestingly, these dysregulated miRNAs have been previously identified as involved in the failing heart. Our results suggest that DOX is able to alter the expression of miRNAs implicated in HF, in vitro as well as in vivo. The present study is a microRNA profiling of the damaged cardiac muscle (cardiomyocyte cell population), following either myocardial infarction (MI) induction or doxorubicin (DOX) treatment. Two DOX-treated models were included: ARC exposed to DOX in vitro and a validated DOX-induced heart failure model generated by repeated administration of DOX injections.
2013-01-29 | E-GEOD-36239 | biostudies-arrayexpress
Project description:The clinical application of anthracyclines such as doxorubicin (DOX) is limited due to their cardiotoxicity. N6-methyladenosine (m6A) plays an essential role in numerous biological processes. However, the roles of m6A and m6A demethylase ALKBH5 in DOX-induced cardiotoxicity (DIC) remain unclear. In this research, DIC models were constructed using Alkbh5-knockout (KO), Alkbh5-knockin (KI), and Alkbh5-myocardial-specific knockout (ALKBH5flox/flox, αMyHC-Cre) mice. Cardiac function and DOX-mediated signal transduction were investigated. As a result, both Alkbh5 whole-body KO and myocardial-specific KO mice had increased mortality, decreased cardiac function, and aggravated DIC injury with severe myocardial mitochondrial damage. Conversely, ALKBH5 overexpression alleviated DOX-mediated mitochondrial injury, increased survival, and improved myocardial function. Mechanistically, ALKBH5 regulated the expression of Rasal3 in an m6A-dependent manner through posttranscriptional mRNA regulation and reduced Rasal3 mRNA stability, thus activating RAS3, inhibiting apoptosis through the RAS/RAF/ERK signaling pathway, and alleviating DIC injury. These findings indicate the potential therapeutic effect of ALKBH5 on DIC.
2023-03-08 | GSE224215 | GEO