Cancer-cell-secreted miR-204-5p induces leptin signaling pathway in white adipose tissue to promote cancer-associated cachexia
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE239524 | GEO | 2024/07/23
REPOSITORIES: GEO
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Project description:Cachexia is a wasting disorder of adipose tissues that leads to profound weight loss and frailty. One key characteristic of cachexia is elevated resting energy expenditure, which has been linked to increased fat lipolysis and thermogenesis. Extracellular vesicles (EVs) are serving as new messengers to mediate cell-cell communication in vivo. How tumors induce brown fat activity is unknown. Here, we found that breast cancer increased hypoxia inducible factor 1 subunit alpha (HIF1A) protein modification through extracellular-vesicle-encapsulated miR-204 targeting von Hippel-Lindau tumor suppressor (VHL), plays an important role in wasting by driving lipolysis and thermogenic gene expression in adipose tissues.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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Project description:Cachexia is a systemic wasting syndrome that develops in many cancers and increases mortality. Despite its importance, it is largely unknown how cachexia progressively and differentially induces tissue wasting. Although cachexia occurs also in pediatric patients, little is known on the underlying mechanisms. Here, we have used pediatric melanoma xenografts to determine the progression and tissue-specific impact of juvenile cachexia on skeletal muscles, heart, white and brown adipose, liver, and brain. We find that the heart and muscles undergo wasting at early stages and are the tissues most strongly impacted transcriptionally. Beyond wasting, we identify general and organ-specific transcriptional changes that likely indicate derangement of organ/tissue function by cachexia. Moreover, also the transcriptome of tissues that do not undergo wasting, such as the brain, is profoundly remodeled by cachexia. Altogether, this study provides insight into the progression of melanoma-induced pediatric cachexia and its differential impact on distinct organ systems.
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