HOXA5-driven transcriptional program instructs lung development [ATAC-Seq]
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PROVIDER: PRJNA1272607 | ENA |
REPOSITORIES: ENA
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Project description:HOXA5-driven transcriptional program instructs lung development [ChIP-Seq]
| PRJNA1272606 | ENA
Project description:Despite the fundamental role of Hoxa5 in mouse development revealed by the well-characterized phenotypes of Hoxa5 mutant mice, HOXA5-dependent regulatory networks remain ill-defined. We generated a Hoxa5FLAG epitope-tagged mouse line to perform ChIP-seq experiments and uncover genome-wide occupancy of the HOXA5 protein. This was done in the developing lung tissue, in which Hoxa5 plays a predominant role since Hoxa5-/- mouse mutants die at birth from respiratory defects. ChIP-seq allowed us to define an in vivo HOXA5 binding motif and its widespread genome distribution in the embryonic lung. Combined with ATAC-seq assays and epigenetic analyses, HOXA5 targets were identified. They include Hox genes known to show expression changes in lungs from Hoxa5 null mutant embryos. Moreover, several key actors of lung morphogenesis were found to possess HOXA5-binding sites and appeared as potential targets of HOXA5. Impact of the loss of Hoxa5 function on their expression was confirmed by in situ hybridization. These targets include members of the FGF10, SHH, BMP4 and WNT2 signaling pathways. Altogether, these data unveil the crucial role of HOXA5 in the coordinated control of the signaling networks instructing lung development.
2025-08-18 | GSE299119 | GEO
Project description:Despite the fundamental role of Hoxa5 in mouse development revealed by the well-characterized phenotypes of Hoxa5 mutant mice, HOXA5-dependent regulatory networks remain ill-defined. We generated a Hoxa5FLAG epitope-tagged mouse line to perform ChIP-seq experiments and uncover genome-wide occupancy of the HOXA5 protein. This was done in the developing lung tissue, in which Hoxa5 plays a predominant role since Hoxa5-/- mouse mutants die at birth from respiratory defects. ChIP-seq allowed us to define an in vivo HOXA5 binding motif and its widespread genome distribution in the embryonic lung. Combined with ATAC-seq assays and epigenetic analyses, HOXA5 targets were identified. They include Hox genes known to show expression changes in lungs from Hoxa5 null mutant embryos. Moreover, several key actors of lung morphogenesis were found to possess HOXA5-binding sites and appeared as potential targets of HOXA5. Impact of the loss of Hoxa5 function on their expression was confirmed by in situ hybridization. These targets include members of the FGF10, SHH, BMP4 and WNT2 signaling pathways. Altogether, these data unveil the crucial role of HOXA5 in the coordinated control of the signaling networks instructing lung development.
2025-08-18 | GSE299120 | GEO
Project description:Homeobox A5 (HOXA5) is a transcription factor in mammalian and can regulate cell differentiation, proliferation and apoptosis as well as tumorigenesis. However, little is known on whether and how HOXA5 can regulate the malignant behaviors of cholangiocarcinoma. The methylation levels of HOXA5 were evaluated by methylation microarray and bisulfite sequencing PCR. We found that hypermethylation in the HOXA5 promoter down-regulated HOXA5 expression in extrahepatic cholangiocarcinoma (ECCA) tissues, which was correlated with worse overall survival. HOXA5 over-expression significantly inhibited the proliferation and tumor growth.
2022-10-05 | GSE211911 | GEO
Project description:Homeobox A5 (HOXA5) is a transcription factor in mammals and can regulate cell differentiation, proliferation and apoptosis as well as tumorigenesis. However, little is known about whether and how HOXA5 can regulate the malignant behaviors of cholangiocarcinoma. The expression profiles were analyzed by RNA microarray. We found MXD1 was upregulated upon HOXA5 overexpression. Besides, p53 pathway was activated by HOXA5 overexpression.
2022-10-05 | GSE211907 | GEO
Project description:HOXA5 is important in overload-induced cardiac hypertrophy. We uesd RNA-Seq to detail global expression program alterations in adult mice cardiomyocytes transfected with Small interfering RNA (siN or siHoxa5 )and treated with phenylephrine(100μM) . Comparisons consisted of identifying Hoxa5-affected gene expression patterns.
2021-01-26 | GSE165497 | GEO
Project description:Here we identify HOXA5 as an important repressor of intestinal stem cell fate in vivo and identify a reciprocal feedback between HOXA5 and Wnt signaling. HOXA5 is suppressed by the Wnt pathway to maintain stemness and becomes active only outside the intestinal crypt where it inhibits Wnt signaling to enforce differentiation. In colon cancer, HOXA5 is down-regulated and its re-expression induces loss of the cancer stem cell phenotype preventing tumor progression and metastasis. Tumor regression by HOXA5 induction can be triggered by retinoids, which represents a tangible means to treat colon cancer by eliminating cancer stem cells. We use microarrays to identify HOXA5 signature in SW480 human colon carcinoma cell line
2015-12-13 | GSE74862 | GEO
Project description:HOXA5 inducible cell line Hs578T was established and cultured as described previously (MCB 2004. 24:924-935). 2×106 cells were seeded onto a 10-cm cell culture dish at 24h before induction. Two batches of RNA from HOXA5-inducible cells (0 h, 6 h and 9 h) were purified for repeating the microarray hybridization experiments once using Affymatrix Chips.Total RNA was extracted using TRIzol reagent (Gibco BRL, Life Technologies, Grand Island, NY) and purified using the RNeasy Mini Kit (Qiagen, Valencia, CA). Keywords: time-course
2005-02-05 | GSE2241 | GEO
Project description:Microarray analysis of gene expression in MCF10A cells following HOXA5 depletion.
2016-02-01 | GSE75840 | GEO
Project description:Hoxa5 plays numerous roles in development, but its downstream molecular effects are mostly unknown. We applied bulk RNA_seq assays to characterize the transcriptional impact of the loss of Hoxa5 gene function in seven different biological contexts, including developing respiratory and musculoskeletal tissues that present phenotypes in Hoxa5 mouse mutants. This global analysis revealed few shared transcriptional changes, suggesting that HOXA5 acts mainly via the regulation of context_specific effectors. However, Hox genes themselves appeared as potentially conserved targets of HOXA5 across tissues. Notably, a trend toward reduced expression of HoxA genes was observed in Hoxa5 null mutants in several tissue contexts. Comparative analysis of epigenetic marks along the HoxA cluster in lung tissue from two different Hoxa5 mutant mouse lines revealed limited effect of either mutation indicating that Hoxa5 gene targeting did not significantly perturb the chromatin landscape of the surrounding HoxA cluster. Combined with the shared impact of the two Hoxa5 mutant alleles on phenotypes and Hox expression, these data argue against the contribution of local cis effects to Hoxa5 mutant phenotypes and support the notion that the HOXA5 protein acts in trans in the control of Hox gene expression.
2024-12-06 | GSE269950 | GEO