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PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (Spatial Transcriptomics)

ABSTRACT: The loss of compact myocardial cardiomyocyte (compact CM) identity suggests that PRDM16 deficiency may dramatically alter the cellular composition in left ventricular (LV) compact myocardium. To test this hypothesis, we performed single-cell RNA-seq (scRNA-seq) to examine gene dysreulation in Prdm16cKO heart. We also performed Visium Spatial Transcriptomics (ST) to facilitate mapping CM clusters to their original locations in the heart. As a result, we were able to demonstrate gene misregulation in Prdm16cKO mouse mainly occurred in LV compact CM.

ORGANISM(S): Mus musculus

PROVIDER: GSE179392 | GEO | 2021/12/20

REPOSITORIES: GEO

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PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (scRNA-seq)

Project description:The loss of compact myocardial cardiomyocyte (compact CM) identity suggests that PRDM16 deficiency may dramatically alter the cellular composition in left ventricular (LV) compact myocardium. To test this hypothesis, we performed single-cell RNA-seq (scRNA-seq) to examine gene dysreulation in Prdm16cKO heart. We also performed Visium Spatial Transcriptomics (ST) to facilitate mapping CM clusters to their original locations in the heart. As a result, we were able to demonstrate gene misregulation in Prdm16cKO mouse mainly occurred in LV compact CM.

2021-12-20 | GSE179390 | GEO

PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (ChIP-seq)

Project description:Identification of genome-wide PRDM16 binding sites in E13.5 whole mouse heart, as well as in isolated left ventricle (LV) and right ventricle (RV).

2021-12-20 | GSE179371 | GEO

PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (bulk RNA-seq)

Project description:Gene expression profiling in whole heart, left ventricle (LV) and right ventricle (RV) of WT and Prdm16 conditional knockout (Prdm16cKO) mouse (Prdm16flox/flox; Xmlc2-Cre) at embryonic day 13.5 (E13.5).

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PRDM16 Is a Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle

Project description:PRDM16 Is a Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle

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PRDM16 is required for proper specification of the working ventricular myocardium by suppressing alternative cardiomyocyte cell fates.

Project description:PRDM16 is a transcription factor with histone methyltransferase activity expressed at the earliest stages of cardiac development. Pathogenic mutations in humans lead to cardiomyopathy, conduction abnormalities and heart failure. PRDM16 is specifically expressed in ventricular but not atrial cardiomyocytes and declines in expression postnatally. Since in other tissues PRDM16 is best known for its role in binary cell fate decisions, we hypothesized a similar decision-making function in cardiomyocytes. Here, we demonstrated that cardiomyocyte-specific deletion of Prdm16 during cardiac development results in contractile dysfunction and abnormal electrophysiology of the postnatal heart, resulting in premature death. By combined RNA+ATAC single-cell sequencing we found that PRDM16 favors ventricular working cardiomyocyte identity, by opposing the activity of master regulators of atrial and ventricular conduction fate. Myocardial loss of Prdm16 during development resulted in hyperplasia of the ventricular conduction system. Hence, PRDM16 plays an indispensable role during cardiac development by driving ventricular working cardiomyocyte identity.

2024-09-18 | GSE255382 | GEO

PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (scRNA-seq)

Project description:PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (scRNA-seq)

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PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (Spatial Transcriptomics)

Project description:PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (Spatial Transcriptomics)

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PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (ChIP-seq)

Project description:PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (ChIP-seq)

| PRJNA743351 | ENA

PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (bulk RNA-seq)

Project description:PRDM16 Functions as A Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle (bulk RNA-seq)

| PRJNA743527 | ENA

Prdm16 Knockout Brown Adipose Tissue

Project description:Gene expression profile from brown adipose tissues of Prdm16 knockout and wile type mice. Prdm16 is a transcription factor that regulates the thermogenic gene program in brown and beige adipocytes. However, whether Prdm16 is required for the development or physiological function of brown adipose tissue (BAT) in vivo has been unclear. By analyzing mice that selectively lacked Prdm16 in the brown adipose lineage, we found that Prdm16 was dispensable for embryonic BAT development. Brown adipose tissues were collected from Prdm16 knockout and wiletype mice with 4 biological replicates per condition. Experiment was done in two separate batch for 6-week-old and 11-month-old. Extracted RNA was hybridized to Agilent two-color arrays.

2014-04-09 | E-GEOD-55080 | biostudies-arrayexpress

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