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Exogenous H2S administration does not regulate gene expression in primary murine alveolar type II cells

ABSTRACT: Primary alveolar type II cells were either treated with vehicle or NaHS for 6 h and 24 h (RS-266 samples). Primary alveolar type II cells treated with GYY4137 at 100 µM concentration were exposed to either 21% O2 or 85% O2 for 24 h (RS-284 samples). Overall no changes in gene expressionwere found in the corrected p values of both microarray studies.

ORGANISM(S): Mus musculus

PROVIDER: GSE53030 | GEO | 2014/05/20

SECONDARY ACCESSION(S): PRJNA230698

REPOSITORIES: GEO

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Exogenous H2S administration does not regulate gene expression in primary murine alveolar type II cells

Project description:Primary alveolar type II cells were either treated with vehicle or NaHS for 6 h and 24 h (RS-266 samples). Primary alveolar type II cells treated with GYY4137 at 100 M-BM-5M concentration were exposed to either 21% O2 or 85% O2 for 24 h (RS-284 samples). Overall no changes in gene expressionwere found in the corrected p values of both microarray studies. Four vehicle samples at 6 h of exposure, four NaHS treated samples at 6 h of exposure, four vehicle samples at 24 h of exposure and four NaHS treated samples at 24 h of exposure were used for the RS-266 microarray study. four GYY4137 100 M-BM-5M samples in 21% O2 after 24 h of exposure were compared to four GYY4137 100 M-BM-5M samples in 85% O2 after 24 h of exposure and used for the RS-284 microarray study.

2014-05-20 | E-GEOD-53030 | biostudies-arrayexpress

Hepatic stellate cells mediates transcription of TNFSF14 in hepatocellular carcinoma cells via H2S/CSE-JNK/JunB signaling pathway

Project description:Purpose: Hepatic stellate cell (HSC) and Hydrogen sulfide (H2S) both play important roles in Hepatocellar carcinoma (HCC). Whereas, in the microenvironment of HCC, whether HSC participates in regulating the biological process of HCC cells by releasing H2S remains elusive. In this study, we investigate how activated HSC influence HCC fate. Methods: The effects of LX-2 and H2S on biological functions of HCC cells were analyzed with Flow cytometry and CCK-8. RNA-sequencing, Western blotting, Quantitative real-time reverse transcription PCR (RT-qPCR), siRNA, immunofluorescence and chromatin immunoprecipitation (ChIP) assays were carried out to examine the effect of H2S on JNK/JunB-TNFSF14 (tumor necrosis factor superfamily member 14) signaling pathway. Specimens from HCC patients were analyzed by using RT-qPCR and Western blotting assays for evaluating the expression of TNFSF14. Statistical analysis was used to analyze the correlation between TNFSF14 expression and clinical data of HCC patients. Results: LX-2 cells is able to induce HepG2 and PLC/PRF/5 cells apoptosis by releasing H2S. RNA- sequencing results showed that TNFSF14 gene was changed in both LX-2 and NaHS group. NaHS dosage and time-dependently up-regulated TNFSF14 mRNA and protein expression in both HepG2 and PLC/PRF/5 cells. NaHS treated in HCC cells led to JNK/JunB signaling pathway activating and greater binding of JunB to its responsive elements on TNFSF14 promoter. Impairment of TNFSF14 induction alleviated LX-2 and NaHS induced apoptosis of HepG2 and PLC/PRF/5 cells. Furthermore, mRNA and protein expressions of TNFSF14 in HCC tissues was lower than in the adjacent tissue. HCC patients with low expression of TNFSF14 have higher malignant degree and poor prognosis. Conclusions: Demonstration of the involvement of HSC-derived H2S in JNK/JunB mediated expression of TNFSF14 gene strongly indicates H2S palys an important role in the regulation of HCC apoptosis.

2022-03-22 | GSE193660 | GEO

Chemoselective Proteomics, Zinc Fingers, and a Zinc(II) Model for H2S Mediated Persulfidation

Project description:The gasotransmitter hydrogen sulfide (H2S) is thought to be involved in the post-translational modification of cysteine residues to produce reactive persulfides. A persulfide-specific chemoselective proteomics approach with mammalian cells has identified a broad range of zinc finger (ZF) proteins as targets of persulfidation. Parallel studies with isolated ZFs show that persulfidation is mediated by Zn(II), O2, and H2S, with intermediates involving oxygen- and sulfur-based radicals detected by mass spectrometry and optical spectroscopies. A small molecule Zn(II) complex exhibits analogous reactivity with H2S and O2, giving a persulfidated product. These data show that Zn(II) is not just a biological structural element, but also plays a critical role in mediating H2S-dependent persulfidation. ZF persulfidation appears to be a general post-translational modification and a possible conduit for H2S signaling. This work has implications for our understanding of H2S-mediated signaling and the regulation of ZFs in cellular physiology and development.

2024-06-23 | PXD041310 | Pride

C.elegans H2S RNA-seq time course

Project description:RNA-seq analysis of adult wildtype C.elegans worms which were exposed to two concentrations of H2S (50 and 150ppm) or oxygen control (7% O2), over time (1,2,12h). A likely mixup of some samples was noted based on clustering analysis, and metadata here has been corrected. The original filename contains the initial annotation.

2023-12-31 | E-MTAB-13296 | biostudies-arrayexpress

Mus musculus

Project description:microRNA expression in primary murine Alveolar type II cells under Normoxia 21% O2 and Hyperoxia 85% O2 after 6 hours and 24 hours

| PRJNA358031 | ENA

Mus musculus

Project description:Gene expression analysis in primary murine Alveolar type II cells under Normoxia 21% O2 and Hyperoxia 85% O2 after 6 hours and 24 hours

| PRJNA358034 | ENA

Project description:PacBio RS II sequencing

| PRJNA483809 | ENA

microRNA expression in primary murine Alveolar type II cells under Normoxia 21% O2 and Hyperoxia 85% O2 after 6 hours and 24 hours

Project description:In this study the microRNA expression of primary murine (C57BL/6) lung alveolar type II cells belonging to four different conditions was analyzed. Effects of hyperoxia 24 hours group were compared to the normoxia 24 hours and effects of the hyperoxia 6 hours group were compared to the normoxia 6 hours.

2017-12-16 | GSE92551 | GEO

Hydrogen sulfide treatment at the late growth stage of Saccharomyces cerevisiae extends chronological lifespan

Project description:Hydrogen sulfide (H2S), a traditionally known cytotoxic gas, has been recently included in the gasotransmitters family. Previous studies demonstrated that lifelong treatment with a slow H2S releasing donor extends yeast chronological lifespan (CLS), but it is not clear when the action of H2S benefits to CLS during yeast growth. Therefore, we investigated the effects of short H2S treatments at different time during yeast cell growth in the lifespan extension by using NaHS, a fast H2S-releasing donor. We show that short NaHS treatments at 4 days after inoculation extend yeast CLS while NaHS treatments earlier than 3 days after inoculation fail to do so. To reveal the mechanism of different consequences on yeast CLS of NaHS treatments at different times, we analyzed the transcriptome of Saccharomyces cerevisiae strain BY4742 with or without the early and late NaHS treatments. We found that the early and late NaHS treatments had similar effects on the expression of genes involved in pathways which are related to CLS regulation. Follow up qPCR and ROS analyses suggest that altered expression of some antioxidant genes by the early NaHS treatments were not stable enough to benefit CLS. Moreover, transcriptome data also indicated that some genes were regulated differently by the early and late H2S treatment such as genes involved in cell wall integrity. Specifically, we found that the expression of YPK2, a human SGK2 homolog and also a key regulator of the yeast cell wall synthesis, was significantly altered by the late NaHS treatment but not altered by the early NaHS treatment. Finally, the key role of YPK2 in CLS regulation by H2S is revealed by CLS data showing that the late NaHS treatment did not enhance the CLS of a ypk2 knockout mutant. This study sheds light on the molecular mechanism of CLS extension induced by H2S, and for the first time addresses the importance of H2S treatment timing for lifespan extension.

2023-10-02 | GSE160162 | GEO

Genome-wide analysis of gene expression changes in human alveolar epithelial cells grown on collagen- or matrigel-coated dishes

Project description:Analysis of human alveolar epithelial cell signatures at gene expression level. The aim of the study was to identify candidate genes that are induced in human alveolar epithelial type II cells on collagen-coated dishes. Results provide important information about changes hAT2 cells undergo in the transformation to AT1-like cells. Total RNA obtained from human alveolar epithelial cells grown on collagen- or matrigel-coated dishes for 12, 24, 48 and 72 hr.

2014-02-01 | E-GEOD-40516 | biostudies-arrayexpress

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