A Transcriptomic Analysis of the Development of Skeletal Muscle Atrophy in Cancer-Cachexia in Tumor-Bearing Mice
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE114820 | GEO | 2018/10/08
REPOSITORIES: GEO
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Project description:We identify sestrins, a family of stress-inducible metabolic regulators, as protective factors against muscle wasting. Sestrin expression decreases during inactivity and its genetic deficiency exacerbates muscle wasting; conversely, sestrin overexpression suffices to prevent atrophy.
2019-09-05 | GSE136866 | GEO
Project description:Cancer cachexia is a prevalent and often fatal wasting condition that cannot be fully reversed with nutritional interventions. Muscle atrophy is a central component of the syndrome, but the mechanisms whereby cancer leads to skeletal muscle atrophy are not well understood. We performed single nucleus multi-omics on skeletal muscles from a mouse model of cancer cachexia and profiled the molecular changes in cachexic muscle. Our results revealed the activation of a denervation-induced gene program that upregulates the transcription factor myogenin. Further studies showed that a myogenin-myostatin pathway promotes muscle atrophy in response to cancer cachexia. shRNA inhibition of myogenin or inhibition of myostatin through overexpression of its endogenous inhibitor follistatin prevented cancer cachexia-induced muscle atrophy in mice. Our findings uncover a molecular basis of cancer cachexia-induced muscle atrophy and highlight potential therapeutic targets for this disorder.
2024-07-12 | GSE272085 | GEO
Project description:Cancer cachexia is a prevalent and often fatal wasting condition that cannot be fully reversed with nutritional interventions. Muscle atrophy is a central component of the syndrome, but the mechanisms whereby cancer leads to skeletal muscle atrophy are not well understood. We performed single nucleus multi-omics on skeletal muscles from a mouse model of cancer cachexia and profiled the molecular changes in cachexic muscle. Our results revealed the activation of a denervation-induced gene program that upregulates the transcription factor myogenin. Further studies showed that a myogenin-myostatin pathway promotes muscle atrophy in response to cancer cachexia. shRNA inhibition of myogenin or inhibition of myostatin through overexpression of its endogenous inhibitor follistatin prevented cancer cachexia-induced muscle atrophy in mice. Our findings uncover a molecular basis of cancer cachexia-induced muscle atrophy and highlight potential therapeutic targets for this disorder.
2024-07-12 | GSE272084 | GEO
Project description:Cancer cachexia is a prevalent and often fatal wasting condition that cannot be fully reversed with nutritional interventions. Muscle atrophy is a central component of the syndrome, but the mechanisms whereby cancer leads to skeletal muscle atrophy are not well understood. We performed single nucleus multi-omics on skeletal muscles from a mouse model of cancer cachexia and profiled the molecular changes in cachexic muscle. Our results revealed the activation of a denervation-induced gene program that upregulates the transcription factor myogenin. Further studies showed that a myogenin-myostatin pathway promotes muscle atrophy in response to cancer cachexia. shRNA inhibition of myogenin or inhibition of myostatin through overexpression of its endogenous inhibitor follistatin prevented cancer cachexia-induced muscle atrophy in mice. Our findings uncover a molecular basis of cancer cachexia-induced muscle atrophy and highlight potential therapeutic targets for this disorder.
2024-07-12 | GSE272083 | GEO
Project description:The aim of the study is to identify genes and pathways associated with muscle and adipose wasting in PDAC cachexia. Muscle and adipose were collected from same individuals to study the concurrent muscle and adipose wasting.
2021-04-01 | GSE133979 | GEO
Project description:Cancer cachexia syndrome is observed in 80% of patients with advanced-stage cancer, and it is one of the most frequent causes of death. Severe wasting accounts for more than 80% in patients with advanced pancreatic cancer. Here we wanted to define, by using an microarray approach and the Pdx1-cre;LSL-KrasG12D;INK4a/arffl/fl, the pathways involved in muscle, liver and white adipose tissue wasting. The aim of our work was to characterize as extensively as possible the pathways activated by the pancreatic cancer-induced cachectic tissues. For this purpose, we generated and compared genome-wide expression profiles of white adipose tissue, skeletal muscle and liver, from Pdx1-cre;LSL-KrasG12D;INK4a/arffl/fl and LSL-KrasG12D;INK4a/arffl/fl mice at 10 weeks-old. Tissue samples by triplicate was obtained from liver, muscle and adipose tissues in both groups, controls and cachectic mice. Total RNA samples was processed and profiled on Affymetrix Mouse Gene 1.0 ST arrays as previously described (Cano et al, 2012)
2014-01-10 | E-GEOD-51931 | biostudies-arrayexpress
Project description:Background
Cancer Cachexia (CC) is a multi-factorial process characterized by progressive weight loss, muscle mass and fat tissue wasting, and adversely affecting their quality of life and survival in patients with advanced stage of cancer.
Megestrol acetate (MA), which can help maintain body weight in advanced cancer patients, has not been proven to be effective in improving quality of life or lean body mass. Furthermore, its use is often limited due to various adverse event such as Cushing syndrome, adrenal insufficiency, or thromboembolic risk.
CC has a complex and multi-factorial pathophysiology, and there is no established standard treatment.
Hypothesis CC is irreversible once it occurs and is also difficult to suppress its progression with any single treatment modality.
The investigators hypothesized that a multi-modal intervention comprised of anti-inflammation, omega-3-fatty acids, oral nutritional supplement with counselling by nutritionist, physical exercise, psychiatric intervention as well as Bojungikki-tang which mediates immune-modulation and reverse both of chronic inflammation and wasting condition as a complementary and alternative medicine (CAM) could prevent the development of CC or improve the CC in advanced cancer patients during chemotherapy compared to those who received usual supportive.
| 2379147 | ecrin-mdr-crc
Project description:Cancer cachexia syndrome is observed in 80% of patients with advanced-stage cancer, and it is one of the most frequent causes of death. Severe wasting accounts for more than 80% in patients with advanced pancreatic cancer. Here we wanted to define, by using an microarray approach and the Pdx1-cre;LSL-KrasG12D;INK4a/arffl/fl, the pathways involved in muscle, liver and white adipose tissue wasting.
2014-01-10 | GSE51931 | GEO
Project description:Background: MicroRNAs (miRs) are small non-coding RNAs that regulate gene (mRNA) expression. Although pathological role of miRs have been studied in muscle wasting conditions such as age, obesity, starvation and muscular dystrophy, their roles in Cancer Cachexia CC are still emerging. Objectives: (i) to profile human skeletal muscle expressed miRs; (ii) to identify differentially expressed (DE) miRs between cachectic and non-cachectic cancer patients; (iii) to identify mRNA targets for the DE miRs to gain mechanistic insights and (iv) to investigate if miRs show potential prognostic and predictive value. Methods: 43 cancer patients were included, of which 19 were cachectic cases exhibiting pre-illness weight loss ≥ 5% and 24 non-cachectic cancer controls who were weight stable in the preceding 6 months. Total RNA isolated from muscle biopsies were subjected to next generation sequencing (NGS). Results: 781 miRs were profiled and 82 miRs with read counts of ≥ 5 in 80% of samples were retained for analysis. We identified 7 DE miRs (up-regulated, fold change of ≥1.4 at p< 0.05). Potential mRNA targets for the DE miRs were identified using previously described human skeletal muscle mRNA expression data (n=90) and identified 212 potential mRNA targets. Ingenuity Pathway Analysis identified 41 pathways (p<0.05) including pathways of myogenesis and inflammation. qRT-PCR analysis of representative miRs, showed similar direction of effect (p<0.05) as in NGS. And lastly, we evaluated the identified miRs for prognostic and predictive value. Conclusions: We identified seven novel miRs associated with CC and pathways that are regulated in CC.
2017-01-09 | GSE75473 | GEO
Project description:Background Loss of skeletal muscle mass in advanced cancer is recognized as an independent predictor of mortality. Mechanisms involved in this wasting process and parameters for early diagnosis are still lacking. As skeletal muscle is considered as a secretory organ, the aim of this present experimental work was to characterize the changes in muscle proteome and secretome associated with cancer-induced cachexia to better understand cellular mechanisms involved in this wasting process and to identify secreted proteins which might reflect the ongoing muscle atrophy process. Methods We investigated first the changes in the muscle proteome associated with cancer-induced cachexia by using differential label-free proteomic analysis on muscle of the C26 mouse model. The differentially abundant proteins were submitted to sequential bioinformatic secretomic analysis in order to identify potentially secreted proteins. Selected reaction monitoring and Western blotting were used to verify the presence of candidate proteins at the circulating level. Their muscle source was demonstrated by assessing their gene expression in skeletal muscle and in cultured myotubes. Finally, we also investigated their regulation in muscle cells. Alterations in several molecular pathways potentially involved in muscle atrophy were highlighted using Gene ontology enrichment analyses. Results Our results revealed a dramatic increased production (2-to 25-fold) by the muscle of several acute phase reactants (APR: Haptoglobin, Serpina3n, Complement C3, Serum amyloid A1) which are also released in the circulation during C26 cancer cachexia. Their production was confirmed in other preclinical models of cancer cachexia as well as in cancer patients. The muscular origin of these APR was demonstrated by their increased expression in skeletal muscle and myotubes. Glucocorticoids and pro-inflammatory cytokines contribute directly to their increased expression in muscle cells in vitro, while the role of IL-6 in the muscular induction of these APR was demonstrated in vivo. Conclusions Cancer is associated with marked changes in muscle secretome during muscle wasting. Our study demonstrates a marked increased production of APR by skeletal muscle in pre-clinical models of cancer cachexia and in cancer patients. Further studies are required to unravel the potential role of these proteins in muscle atrophy and their interest as biomarkers of cancer cachexia.
2020-10-28 | PXD016474 | Pride