The functional significance of ATM phosphorylation of Bub3 on Serine 135 in sensitivity to DNA damaging agents.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e15048-e15048
Author(s):  
Siyue Zhang ◽  
Mingming Xiao ◽  
Zhuang Liu ◽  
Yaqi Mo ◽  
Hong Liu ◽  
...  
Keyword(s):  
Dna Damage ◽  
Survival Rates ◽  
Mitotic Checkpoint ◽  
Immunofluorescence Assay ◽  
Mass Spectrometry Analysis ◽  
Dependent Manner ◽  
Atm Kinase ◽  
Spectrometry Analysis ◽  
Dna Damaging Agents ◽  
Mitotic Checkpoint Protein

e15048 Background: Identification of biomarkers to assess and modify the sensitivity of cancer cells to radiotherapy and chemotherapy is critical to improve cancer treatment outcome. Budding uninhibited by benzimidazoles 3 (Bub3) is a mitotic checkpoint protein, and it is frequently overexpressed in many cancers and associated with low survival rates. Bub3 is involved in the repair of DNA damage induced by radiotherapy and chemotherapy. We recently identified that the ATM kinase phosphorylated Bub3 on Serine 135 (S135) via the stable isotope labeled amino acid in cell culture -mass spectrometry analysis. This study aims to explore the mechanism of ATM-phosphorylated Bub3 in the DNA damage response (DDR) and its effect on tumor sensitivity to DNA damaging agents. Methods: The radiosensitivity of the cells was detected by clonal formation assay, the proliferation ability of the cells was detected by the MTS assay. The expression of DDR protein γ-H2AX in the nucleus was detected by immunofluorescence assay. Genomic instability was observed by multinuclear formation. Co-immunoprecipitation and Western Blot were used to explore the internal mechanism of ATM phosphorylation of Bub3 in DDR. Results: We showed that ionizing radiation (IR) could induce Bub3 S/TQ (the specific ATM consensus motif) phosphorylation in an ATM dependent manner. Mutation of Bub3 Serine 135 to alanine (S135A) led to a phosphorylation defect. Phenotypic experiments showed hypersensitivity to IR in cells expressing Bub3 S135A. Bub3 S135A prolonged existence of γ-H2AX foci and increased the proportion of cells containing micronuclei. Further, we found that Ku70 and Ku80 showed a significant increase after IR in their interactions with Bub3, while Bub3 S135A mutation significantly reduced the interaction, leading to impaired DNA repair. Conclusions: We demonstrate that Bub3 S135 phosphorylation mediated by ATM is essential for an optimal DDR and disruption of this pathway increases tumor sensitivity to DNA damaging agents.

scholarly journals CEP131 Abrogates CHK1 Inhibitor-Induced Replication Defects and Is Associated with Unfavorable Outcome in Neuroblastoma

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Kiyohiro Ando ◽  
Verna Cázares-Ordoñez ◽  
Makoto Makishima ◽  
Atsushi Yokoyama ◽  
Yusuke Suenaga ◽  
...  
Keyword(s):  
Dna Damage ◽  
Therapeutic Strategy ◽  
Neuroblastoma Cell ◽  
Mass Spectrometry Analysis ◽  
Spectrometry Analysis ◽  
Checkpoint Kinase 1 ◽  
Family Protein ◽  
Damage Response ◽  
Chk1 Inhibitor ◽  
Associated Family

Checkpoint kinase 1 (CHK1) plays a key role in genome surveillance and integrity throughout the cell cycle. Selective inhibitors of CHK1 (CHK1i) are undergoing clinical evaluation for various human malignancies, including neuroblastoma. Recently, we reported that CHK1i, PF-477736, induced a p53-mediated DNA damage response. As a result, the cancer cells were able to repair DNA damage and became less sensitive to CHK1i. In this study, we discovered that PF-477736 increased expression of MDM2 oncogene along with CHK1i-induced replication defects in neuroblastoma NB-39-nu cells. A mass spectrometry analysis of protein binding to MDM2 in the presence of CHK1i identified the centrosome-associated family protein 131 (CEP131), which was correlated with unfavorable prognosis of neuroblastoma patients. We revealed that MDM2 was associated with CEP131 protein degradation, whereas overexpression of CEP131 accelerated neuroblastoma cell growth and exhibited resistance to CHK1i-induced replication defects. Thus, these findings may provide a future therapeutic strategy against centrosome-associated oncogenes involving CEP131 as a target in neuroblastoma.

scholarly journals Yeast Rpn4 Links the Proteasome and DNA Repair via RAD52 Regulation

2020 ◽  
Vol 21 (21) ◽  
pp. 8097
Author(s):  
Daria S. Spasskaya ◽  
Nonna I. Nadolinskaia ◽  
Vera V. Tutyaeva ◽  
Yuriy P. Lysov ◽  
Vadim L. Karpov ◽  
...  
Keyword(s):  
Dna Damage ◽  
Dna Repair ◽  
Proteasome Inhibition ◽  
26S Proteasome ◽  
Dependent Manner ◽  
Dna Repair Genes ◽  
Damage Resistance ◽  
Dna Damaging Agents ◽  
Mutant Strains ◽  
Repair Genes

Environmental and intracellular factors often damage DNA, but multiple DNA repair pathways maintain genome integrity. In yeast, the 26S proteasome and its transcriptional regulator and substrate Rpn4 are involved in DNA damage resistance. Paradoxically, while proteasome dysfunction may induce hyper-resistance to DNA-damaging agents, Rpn4 malfunction sensitizes yeasts to these agents. Previously, we proposed that proteasome inhibition causes Rpn4 stabilization followed by the upregulation of Rpn4-dependent DNA repair genes and pathways. Here, we aimed to elucidate the key Rpn4 targets responsible for DNA damage hyper-resistance in proteasome mutants. We impaired the Rpn4-mediated regulation of candidate genes using the CRISPR/Cas9 system and tested the sensitivity of mutant strains to 4-NQO, MMS and zeocin. We found that the separate or simultaneous deregulation of 19S or 20S proteasome subcomplexes induced MAG1, DDI1, RAD23 and RAD52 in an Rpn4-dependent manner. Deregulation of RAD23, DDI1 and RAD52 sensitized yeast to DNA damage. Genetic, epigenetic or dihydrocoumarin-mediated RAD52 repression restored the sensitivity of the proteasome mutants to DNA damage. Our results suggest that the Rpn4-mediated overexpression of DNA repair genes, especially RAD52, defines the DNA damage hyper-resistant phenotype of proteasome mutants. The developed yeast model is useful for characterizing drugs that reverse the DNA damage hyper-resistance phenotypes of cancers.

Arginine Methylation Of RBM15 By PRMT1 Controls Alternative Splicing Of Genes Involved In Megakaryocyte Differentiation

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 2443-2443
Author(s):  
Xinyang Zhao ◽  
Li Zhang ◽  
Rui Wang ◽  
Ngoc Tung Trans ◽  
Hairui Su ◽  
...  
Keyword(s):  
Alternative Splicing ◽  
Rna Binding ◽  
Conflicts Of Interest ◽  
Chromosome Translocation ◽  
Arginine Methylation ◽  
Mass Spectrometry Analysis ◽  
Dependent Manner ◽  
Hematopoietic Stem ◽  
Spectrometry Analysis ◽  
Megakaryocyte Differentiation

Abstract More than 90% of under one year old infants with acute megakaryoblastic leukemia (AMKL) have chromosome translocation t(1;22)(p13;q13) with RBM15 fused to MKL1. RBM15 encodes an RNA binding protein important for hematopoietic stem cell self-renewal and differentiation. In agreement with its roles in AMKL, RBM15 is required for normal megakaryocyte differentiation. We found that higher expression of PRMT1 (Protein Arginine Methyltransferase) is commonly seen in M7 leukemia patient samples than other types of myeloid leukemia and that RBM15 is a bona fide methylation target for PRMT1. Using mass spectrometry analysis, we mapped the PRMT1 mediated mono-methylated site. The enzymatic activity of the PRMT1 V2 isoform is required for RBM15 degradation, as both shRNA molecules knocking down PRMT1 and small chemical PRMT1 inhibitors stabilize the RBM15 protein. Mutation of the methylation site to lysine blocks the ubiquitylation mediated degradation. Thus the degradation is a methylation dependent process. We identified the E3 ligase responsible for the degradation. Down-regulation of the RBM15 protein changes the isoform ratio of genes including GATA1 critical megakaryocyte differentiation. We found that RBM15 regulates its interaction with SF3B1A in methylation dependent manner during alternative splicing of GATA1 pre-mRNA. Thus, via methylation triggered RBM15 degradation, the megakaryocyte progenitor cells maintain a delicate balance between differentiation and proliferation by keeping the proper ratio of GATA1s and GATA1-full length mRNA. SF3B1A has been shown to be mutated in myeloid dysplasia syndrome and in several different types of leukemia. Methylation by PRMT1 links the two types of leukemic genes into a single pathway. Our results imply that targeting PRMT1/RBM15 pathway might be a potential therapy for AMKL and other blood malignancies. Disclosures: No relevant conflicts of interest to declare.

scholarly journals Hsp90 induces increased genomic instability toward DNA-damaging agents by tuning down RAD53 transcription

2016 ◽  
Vol 27 (15) ◽  
pp. 2463-2478 ◽  
Author(s):  
Nidhi Khurana ◽  
Shyamasree Laskar ◽  
Mrinal K. Bhattacharyya ◽  
Sunanda Bhattacharyya
Keyword(s):  
Dna Damage ◽  
Genomic Instability ◽  
Transcriptional Repression ◽  
Strand Break ◽  
Dependent Manner ◽  
Loss Of Function ◽  
Checkpoint Activation ◽  
Dna Damage Signaling ◽  
Dna Damaging Agents ◽  
G1 Cells

It is well documented that elevated body temperature causes tumors to regress upon radiotherapy. However, how hyperthermia induces DNA damage sensitivity is not clear. We show that a transient heat shock and particularly the concomitant induction of Hsp90 lead to increased genomic instability under DNA-damaging conditions. Using Saccharomyces cerevisiae as a model eukaryote, we demonstrate that elevated levels of Hsp90 attenuate efficient DNA damage signaling and dictate preferential use of the potentially mutagenic double-strand break repair pathway. We show that under normal physiological conditions, Hsp90 negatively regulates RAD53 transcription to suppress DNA damage checkpoint activation. However, under DNA damaging conditions, RAD53 is derepressed, and the increased level of Rad53p triggers an efficient DNA damage response. A higher abundance of Hsp90 causes increased transcriptional repression on RAD53 in a dose-dependent manner, which could not be fully derepressed even in the presence of DNA damage. Accordingly, cells behave like a rad53 loss-of-function mutant and show reduced NHEJ efficiency, with a drastic failure to up-regulate RAD51 expression and manifestly faster accumulation of CLN1 and CLN2 in DNA-damaged G1, cells leading to premature release from checkpoint arrest. We further demonstrate that Rad53 overexpression is able to rescue all of the aforementioned deleterious effects caused by Hsp90 overproduction.

scholarly journals Pedigree analyses of yeast cells recovering from DNA damage allow assignment of lethal events to individual post-treatment generations.

Genetics ◽  
1990 ◽  
Vol 124 (1) ◽  
pp. 57-65
Author(s):  
F Klein ◽  
A Karwan ◽  
U Wintersberger
Keyword(s):  
Dna Damage ◽  
Post Treatment ◽  
Yeast Cells ◽  
Dependent Manner ◽  
The Third ◽  
Lethal Mutations ◽  
Dna Damaging Agents ◽  
Kinetics Of ◽  
Dose Dependent ◽  
Insight Into

Abstract Haploid cells of Saccharomyces cerevisiae were treated with different DNA damaging agents at various doses. A study of the progeny of individual such cells (by pedigree analyses up to the third generation) allowed the assignment of lethal events to distinct post treatment generations. By microscopically inspecting those cells which were not able to form visible colonies we could discriminate between cells dying from immediately effective lethal hits and those generating microcolonies (three to several hundred cells) probably as a consequence of lethal mutation(s). The experimentally obtained numbers of lethal events (which we call apparent lethal fixations) were mathematically transformed into mean probabilities of lethal fixations as taking place in cells of certain post treatment generations. Such analyses give detailed insight into the kinetics of lethality as a consequence of different kinds of DNA damage. For example, X-irradiated cells lost viability mainly by lethal hits (which we call 00-fixations); only at a higher dose also lethal mutations fixed in the cells that were in direct contact with the mutagen (which we call 0-fixations), but not in later generations, occurred. Ethyl methanesulfonate (EMS)-treated cells were hit by 00-fixations in a dose dependent manner; 0-fixations were not detected for any dose of EMS applied; the probability for fixation of lethal mutations was found equally high for cells of the first and second post treatment generation and, unexpectedly, was well above control in the third post-treatment generation. The distribution of all sorts of lethal fixations taken together, which occurred in the EMS-damaged cell families, was not random.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Autoimmune gait disturbance accompanying adaptor protein-3B2-IgG

Neurology ◽  
2019 ◽  
Vol 93 (10) ◽  
pp. e954-e963 ◽  
Author(s):  
Josephe A. Honorat ◽  
A. Sebastian Lopez-Chiriboga ◽  
Thomas J. Kryzer ◽  
Lars Komorowski ◽  
Madeleine Scharf ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Western Blot ◽  
Adaptor Protein ◽  
Sensory Neuropathy ◽  
Clinical Information ◽  
Sympathetic Ganglia ◽  
Immunofluorescence Assay ◽  
Mass Spectrometry Analysis ◽  
Antigen Specificity ◽  
Spectrometry Analysis

ObjectiveTo describe phenotypes, treatment response, and outcomes of autoimmunity targeting a synaptic vesicle coat protein, the neuronal (B2) form of adaptor protein–3 (AP3).MethodsArchived serum and CSF specimens (from 616,025 screened) harboring unclassified synaptic antibodies mimicking amphiphysin–immunoglobulin G (IgG) on tissue-based indirect immunofluorescence assay (IFA) were re-evaluated for novel IgG staining patterns. Autoantigens were identified by western blot and mass spectrometry. Recombinant western blot and cell-binding assay (CBA) were used to confirm antigen specificity. Clinical data were obtained retrospectively.ResultsSerum (10) and CSF (6) specimens of 10 patients produced identical IFA staining patterns throughout mouse nervous system tissues, most prominently in cerebellum (Purkinje neuronal perikarya, granular layer synapses, and dentate regions), spinal cord gray matter, dorsal root ganglia, and sympathetic ganglia. The antigen revealed by mass spectrometry analysis and confirmed by recombinant assays (western blot and CBA) was AP3B2 in all. Of 10 seropositive patients, 6 were women; median symptom onset age was 42 years (range 24–58). Clinical information was available for 9 patients, all with subacute onset and rapidly progressive gait ataxia. Neurologic manifestations were myeloneuropathy (3), peripheral sensory neuropathy (2), cerebellar ataxia (2), and spinocerebellar ataxia (2). Five patients received immunotherapy; none improved, but they did not worsen over the follow-up period (median 36 months; range 3–94). Two patients (both with cancer) died. One of 50 control sera was positive by western blot only (but not by IFA or CBA).ConclusionAP3B2 (previously named β-neuronal adaptin-like protein) autoimmunity appears rare, is accompanied by ataxia (sensory or cerebellar), and is potentially treatable.

Methanolic extract of Woodfordia fruticosa Kurz flowers ameliorates carbon tetrachloride-induced chronic hepatic fibrosis in rats

2014 ◽  
Vol 32 (7) ◽  
pp. 1224-1236 ◽  
Author(s):  
A Nitha ◽  
SP Prabha ◽  
PN Ansil ◽  
MS Latha
Keyword(s):  
Carbon Tetrachloride ◽  
Hepatic Fibrosis ◽  
Methanolic Extract ◽  
Mass Spectrometry Analysis ◽  
Dependent Manner ◽  
Spectrometry Analysis ◽  
Collagen Iii ◽  
Male Wistar Rats ◽  
Matrix Accumulation ◽  
Woodfordia Fruticosa

Hepatic fibrosis, characterized by extracellular matrix accumulation, is the common cause of chronic liver failure and is a leading cause of morbidity and mortality worldwide. The aim of the present study was to evaluate the effect of dried flowers of Woodfordia fruticosa on carbon tetrachloride (CCl4)-induced hepatic fibrosis in rat model. Hepatic fibrosis was induced in male Wistar rats by CCl4 administration (150 μl/100 g rat weight, oral) twice a week for 10 weeks. In preventive model, administration of daily doses of methanolic extract of W. fruticosa (MEWF) at two different doses (100 mg/kg, body weight (b.w.) and 200 mg/kg, b.w.) was started 1 week before the onset of CCl4 administration and continued for 10 weeks. In curative model, MEWF at 100 and 200 mg/kg were given for last 2 weeks after the establishment of fibrosis. MEWF at a dose of 200 mg/kg was able to exert a more pronounced effect as evidenced histologically by significant reduction in fibrotic septa formation in liver tissue, immunohistochemically by abridged expression of collagen III, and also biochemically by serum and tissue antioxidant status, lipid peroxidation, and hydroxyproline level. Liquid chromatography–mass spectrometry analysis revealed the presence of confertin, quercetin methyl ether, ellagic acid, and stigmasterol in MEWF, which could be responsible for its antifibrotic activity. These results indicate the effective protection exerted by MEWF against CCl4-induced hepatic fibrosis in a dose-dependent manner.

scholarly journals Adenovirus Replaces Mitotic Checkpoint Controls

2015 ◽  
Vol 89 (9) ◽  
pp. 5083-5096 ◽  
Author(s):  
Roberta L. Turner ◽  
Peter Groitl ◽  
Thomas Dobner ◽  
David A. Ornelles
Keyword(s):  
Cell Cycle ◽  
Dna Damage ◽  
Tumor Suppressor ◽  
Adenovirus Type ◽  
Cyclin B1 ◽  
Mitotic Checkpoint ◽  
Mitotic Catastrophe ◽  
Dependent Manner ◽  
Infected Cells ◽  
Adenoviral Proteins

ABSTRACTInfection with adenovirus triggers the cellular DNA damage response, elements of which include cell death and cell cycle arrest. Early adenoviral proteins, including the E1B-55K and E4orf3 proteins, inhibit signaling in response to DNA damage. A fraction of cells infected with an adenovirus mutant unable to express the E1B-55K and E4orf3 genes appeared to arrest in a mitotic-like state. Cells infected early in G1of the cell cycle were predisposed to arrest in this state at late times of infection. This arrested state, which displays hallmarks of mitotic catastrophe, was prevented by expression of either the E1B-55K or the E4orf3 genes. However, E1B-55K mutant virus-infected cells became trapped in a mitotic-like state in the presence of the microtubule poison colcemid, suggesting that the two viral proteins restrict entry into mitosis or facilitate exit from mitosis in order to prevent infected cells from arresting in mitosis. The E1B-55K protein appeared to prevent inappropriate entry into mitosis through its interaction with the cellular tumor suppressor protein p53. The E4orf3 protein facilitated exit from mitosis by possibly mislocalizing and functionally inactivating cyclin B1. When expressed in noninfected cells, E4orf3 overcame the mitotic arrest caused by the degradation-resistant R42A cyclin B1 variant.IMPORTANCECells that are infected with adenovirus type 5 early in G1of the cell cycle are predisposed to arrest in a mitotic-like state in a p53-dependent manner. The adenoviral E1B-55K protein prevents entry into mitosis. This newly described activity for the E1B-55K protein appears to depend on the interaction between the E1B-55K protein and the tumor suppressor p53. The adenoviral E4orf3 protein facilitates exit from mitosis, possibly by altering the intracellular distribution of cyclin B1. By preventing entry into mitosis and by promoting exit from mitosis, these adenoviral proteins act to prevent the infected cell from arresting in a mitotic-like state.

scholarly journals Efficacy of the Aqueous Extract of Azadirachta indica Against the Marine Parasitic Leech and Its Phytochemical Profiling

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1908
Author(s):  
Balu Alagar Venmathi Maran ◽  
Dawglas Josmeh ◽  
Jen Kit Tan ◽  
Yoong Soon Yong ◽  
Muhammad Dawood Shah
Keyword(s):  
Mass Spectrometry ◽  
Aqueous Extract ◽  
Azadirachta Indica ◽  
Total Mortality ◽  
Mass Spectrometry Analysis ◽  
Economic Losses ◽  
Dependent Manner ◽  
Spectrometry Analysis ◽  
Orbitrap Mass Spectrometry ◽  
Q Exactive

Zeylanicobdella arugamensis (Hirudinea), a marine parasitic leech, not only resulted in the mortality of the host fish (Groupers) but also caused economic losses. The current study aimed to elucidate the antiparasitic efficacy of the aqueous extract of the Azadirachta indica leaves against Z. arugamensis and to profile the composition via LC-Q Exactive HF Orbitrap mass spectrometry. Different concentrations (25, 50 and 100 mg/mL) of A. indica extract were prepared and tested on the parasitic leeches. The total mortality of leeches was noticed with an exposure to the A. indica aqueous extract. The average times required for the aqueous extract at concentrations of 25, 50 and 100 mg/mL to kill the leeches were 42.65 ± 9.20, 11.69 ± 1.11 and 6.45 ± 0.45 min, respectively, in a dose-dependent manner. The Orbitrap mass spectrometry analysis indicated the presence of five flavonoids (myricetin 3-O-galactoside, trifolin, isorhamnetin, quercetin and kaempferol), four aromatics (4-methoxy benzaldehyde, scopoletin, indole-3-acrylic acid and 2,4-quinolinediol), three phenolics (p-coumaric acid, ferulic acid and phloretin) and two terpenoids (pulegone and caryophyllene oxide). Thus, our study indicates that A. indica aqueous extract is a good source of metabolites with the potential to act as a biocontrol agent against the marine parasitic leech in aquaculture.

scholarly journals YTHDF2 alleviates cardiac hypertrophy via regulating Myh7 mRNA decoy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hongfei Xu ◽  
Zhen Wang ◽  
Miao Chen ◽  
Wenting Zhao ◽  
Tingting Tao ◽  
...  
Keyword(s):  
Cardiac Hypertrophy ◽  
Mass Spectrometry Analysis ◽  
Immunofluorescent Staining ◽  
Dependent Manner ◽  
Protective Effects ◽  
Spectrometry Analysis ◽  
Pathological Cardiac Hypertrophy ◽  
Therapeutic Mechanisms ◽  
M6a Rna Methylation ◽  
Underlying Mechanisms

Abstract Background Pathological cardiac hypertrophy is a major contributor of heart failure (HF), which seriously threatens human’s health world widely. Deregulation of m6A RNA methylation, and m6A methyltransferases and de-methyltransferases have been demonstrated to act essential roles in cardiac hypertrophy and HF. Here, we studied the potential roles and its underlying mechanisms of m6A Reader YTHDF proteins in HF. In this study, we constructed HF mouse model by transverse aortic constriction surgery. Primary cardiomyocytes were isolated and stimulated with isoproterenol (ISO) or phenylephrine (PHE) to induce myocardial hypertrophy. Results Through single-cell RNA-seq analysis, immunofluorescent staining, HE staining, Western blotting, and real time-PCR detections, we found that YTHDF2 mRNA and protein level, but not YTHDF1 or YTHDF3, was significantly increased during HF development. YTHDF2 overexpression could efficiently alleviate cardiac hypertrophy. Furthermore, through immunoprecipitation accompanied with mass spectrometry analysis, Gene Ontology (GO) analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, we found that ISO stimulation did not evidently affect YTHDF2-interacting proteins. However, ISO or PHE stimulation significantly increased YTHDF2 protein interacting with Myh7 (beta-myosin heavy chain) mRNA, an important cardiac hypertrophy marker, in an m6A-dependent manner. Knockdown of Myh7 or deletion of the YTH domain of YTHDF2 reversed the protective effects of YTHDF2 on cardiac hypertrophy. Finally, we found that ISO or PHE stimulation promoted YTHDF2 protein expression through enhancing Ythdf2 mRNA stability in an m6A-dependent manner in cardiomyocytes. Conclusions Overall, our results indicate that the m6A Reader YTHDF2 suppresses cardiac hypertrophy via Myh7 mRNA decoy in an m6A-dependent manner. This study highlights the functional importance of YTHDF2-dependent cardiac m6A mRNA regulation during cardiac hypertrophy, and provides a novel mechanistic insight into the therapeutic mechanisms of YTHDF2.

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