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Identification and analysis of differently expressed genes in liver macrophages from WT and FABP7 KO mice with MC38 metastatic.

ABSTRACT: Identification and analysis of differently expressed genes in liver macrophages from WT and FABP7 KO mice with MC38 metastatic.

PROVIDER: PRJNA1021538 | ENA |

REPOSITORIES: ENA

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Identification and analysis of differently expressed genes in liver macrophages from WT and FABP7 KO mice with MC38 metastatic.

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Transcriptome Analysis of Differentially Expressed Genes in the Wild-type and Fabp7 KO Mouse Inner Ear

Project description:To reveal the function of FABP7 in the inner ear, we evaluated gene expressions between Wild-type and Fabp7 KO mice one day after noise exposure at 10 weeks, using RNA sequencing analysis. The read number was approximately 27–32 million paired-end reads per sample. A total of 24 and 23 genes were identified as upregulated and downregulated differentially expressed genes (DEGs), respectively in Fabp7 KO mice. The upregulation of genes related to nicotinamide-adenine dinucleotide (NADH) dehydrogenase (mt-Nd1, 2, 3, 4, and 6) and a glial high-affinity glutamate transporter (solute carrier family 1, member 2: Slc1a2) and downregulation of genes related to C/D box small nucleolar RNAs were observed in Fabp7 KO mice.

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Project description:MC38 tumors resistant to anti-PD-1 treatment (MC38-resistant) were generated through serial in vivo passaging, and global gene expression analysis was used to compare resistant and parental tumors. MC38 and MC38-resistant tumors exhibited widespread changes in global gene expression.

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Immunopeptidome on MC38 Cell line

Project description:PTM – driven antigenicity – immunopeptidome of MC38 cell line

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Proteomics analysis of the matrisome from MC38 experimental mouse liver metastases

Project description:Dissemination of primary tumors to distant anatomical sites has a substantial negative impact on patient prognosis. The liver is a common site for metastases from colorectal cancer, and patients with hepatic metastases have generally much shorter survival, raising a need to develop and implement novel strategies for targeting metastatic disease. The extracellular matrix (ECM) is a meshwork of highly crosslinked, insoluble, high molecular weight proteins maintaining tissue integrity and establishing cell-cell interactions. Emerging evidence identifies the importance of the ECM in cancer cell migration, invasion, intravasation, and metastasis. Here, we isolated the extracellular matrix from MC38 mouse liver metastases using our optimized method of mild detergent solubilization followed by biochemical enrichment. The matrices were subjected to label-free quantitative mass spectrometry analysis, revealing proteins highly abundant in the metastatic matrisome. The resulting list of differentially expressed proteins significantly predicted survival in patients with colorectal cancer but not other cancers with strong involvement of the extracellular matrix component. One of the proteins upregulated in liver metastatic ECM, Annexin A1, was not previously studied in the context of cancer-associated matrisome. Here we show that Annexin A1 was markedly upregulated in colon cancer cell lines compared to cancer cells of other origin, and also overrepresented in human primary colorectal lesions as well as hepatic metastases in comparison with their adjacent healthy tissue counterparts. In conclusion, our study provides a comprehensive ECM characterization of MC38 experimental liver metastases and proposes Annexin A1 as a putative target for this disease.

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Photoconversion of MC38

Project description:Photoconversion of MC38

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Circadian expression of Fabp7 mRNA is disrupted in Bmal1 KO mice.

Project description:The astrocyte brain-type fatty acid binding protein (Fabp7) gene expression cycles globally throughout mammalian brain, and is known to regulate sleep in multiple species, including humans. The mechanisms that control circadian Fabp7 gene expression are not completely understood and may include core circadian clock components. Here we examined the circadian expression of Fabp7 mRNA in the hypothalamus of core clock gene Bmal1 knock-out (KO) mice. We observed that the circadian rhythm of Fabp7 mRNA expression is blunted, while overall Fabp7 mRNA levels are significantly higher in Bmal1 KO compared to control (C57BL/6?J) mice. We did not observe any significant changes in levels of hypothalamic mRNA expression of Fabp3 or Fabp5, two other fatty acid binding proteins expressed in mammalian brain, between Bmal1 KO and control mice. These results suggest that Fabp7 gene expression is regulated by circadian processes and may represent a molecular link controlling the circadian timing of sleep with sleep behavior.

| S-EPMC7041087 | biostudies-literature

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