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PeFleSpea

ABSTRACT: Flectonema sp. DT1601

PROVIDER: PRJEB73989 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
		Other
	peFleSpea1.metagenome.1.primary.fa.gz	Other
	ERR12765221_1.fastq.gz	Fastqsanger.gz
	ERR12765221_2.fastq.gz	Fastqsanger.gz
	ERR12765222_1.fastq.gz	Fastqsanger.gz

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peFleSpea1

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Differential sex-dependent regulation of the alveolar macrophage miRNome of SP-A2 and co-ex (SP-A1/SP-A2) and sex differences attenuation after 18h of ozone exposure

Project description:BACKGROUND: Human SP-A1 and SP-A2, encoded by SFTPA1 and SFTPA2 and their genetic variants differentially impact alveolar macrophage (AM) functions and regulation, including the miRNome. We investigated whether miRNome differences previously observed between AM from SP-A2 and SP-A1/SP-A2 mice are due to continued qualitative differences or a delayed response of mice carrying a single gene. METHODS: Human transgenic (hTG) mice, carrying SP-A2 or both SP-A genes and SP-A-KO mice were exposed to filtered air (FA) or O3. AM miRNA levels, target gene expression and pathways determined 18 h after O3 exposure. RESULTS: We found: (a) Differences in miRNome due to sex, SP-A genotype, and exposure; (b) miRNome of both sexes was largely downregulated by O3 ; co-ex had fewer changed (≥2X) miRNAs than either group. (c) the number and direction of expression of genes with significant changes in males and females in co-ex is almost the opposite of those in SP-A2; (iv) The same pathways were found in the studied groups; (e) O3 exposure attenuated sex differences; a higher number of genotype-dependent and genotype-independent miRNAs was common in both sexes after O3 exposure. CONCLUSION: Qualitative differences between SP-A2 and co-ex persist 18 h post-O3, and O3 attenuates sex differences.

2021-01-06 | GSE158401 | GEO

Impact of K pneumoniae infection and/or exogenous surfactant protein-A2 (1A0) on alveolar macrophage miRNome in SP-A-knockout mice.

Project description:Human SP-A1 and SP-A2, encoded by SFTPA1 and SFTPA2 and their genetic variants differentially impact alveolar macrophage (AM) functions and regulation, including the miRNome. single dose of SP-A exogenous treatment of SP-A-KO mice prior to infection, after infection, or at the time of infection significantly improved survival. we investigated the role of exogenous SP-A protein treatment on the regulation of AM miRNome in SP-A-KO mice at the time of infection. Towards this, SP-A-KO male and female mice were infected with K. pneumoniae alone or in combination with exogenous SP-A2 (1A0) protein for 6 h, and the expression levels of AM miRNAs, target mRNAs of the significant miRNAs, and pathways involved were studied. We found (i) significant differences in AM miRNome of KO in terms of sex and exposure; (ii) the expression of the overwhelming majority of miRNA targets in KO males were increased in response to infection and exogenous SP-A2 (1A0) protein treatment at the time of infection; (iii) miRNA-mRNA targets were involved in the pro-inflammatory response, anti-apoptosis, cell cycle, cellular growth and proliferation pathways. These data may assist in studying molecular mechanisms of exogenous SP-A mediated the AM miRNome regulation and potentially identify novel therapeutic targets for K. pneumoniae infection.

2023-04-21 | GSE173157 | GEO

Differential impact of co-expressed SP-A1/SP-A2 protein on AM miRNome; sex differences

Project description:In humans there are two surfactant protein A (SP-A) functional genes SFTPA1 and SFTPA2 encoding innate immune molecules, SP-A1 and SP-A2, respectively, with numerous genetic variants each. SP-A interacts and regulates many of the functions of alveolar macrophages (AM). It is shown that SP-A variants differ in their ability to regulate the AM miRNome in response to oxidative stress (OxS). Because humans have both SP-A gene products, we were interested to determine the combined effect of co-expressed SP-A1/SP-A2 (co-ex) in response to ozone (O3) induced OxS on AM miRNome. Human transgenic (hTG) mice, carrying both SP-A1/SP-A2 (6A2/1A0, co-ex) and SP-A- KO were utilized. The hTG and KO mice were exposed to filtered air (FA) or O3 and miRNA levels were measured after AM isolation with or without normalization to KO. We found: (i) The AM miRNome of co-ex males and females in response to OxS to be largely downregulated after normalization to KO, but after Bonferroni multiple comparison analysis only in females the AM miRNome remained significantly different compared to control (FA); (ii) The targets of the significantly changed miRNAs were downregulated in females and upregulated in males; (iii) Several of the validated mRNA targets were involved in pro-inflammatory response, anti-apoptosis, cell cycle, cellular growth and proliferation; (iv) The AM of SP-A2 male, shown, previously to have major effect on the male AM miRNome in response to OxS, shared similarities with the co-ex, namely in pathways involved in the pro-inflammatory response and anti-apoptosis but also exhibited differences with the cell-cycle, growth, and proliferation pathway being involved in co-ex and ROS homeostasis in SP-A2 male. We speculate that the presence of both gene products versus single gene products differentially impact the AM responses in males and females in response to OxS.

2019-08-02 | GSE135233 | GEO

To screen miRNA expression of SP and MP cells in mutiply myeloma by miRNA array

Project description:To better understand the molecular mechanisms of SP cells, we screened the miRNAs expression patterns in the SP compared with the MP cells. MiRCURY™ LNA array analysis of sorted SP and MP cells from two relapsed myeloma patients with more than 70% bone marrow plasma cells were performed.

2015-12-31 | GSE56163 | GEO

Global dynamics of stage-specific transcription factor binding during thymocyte development

Project description:ATAC-seq in DN, DP, CD4 SP and CD8 SP thymocytes isolated from 9 weeks-old wild type C57BL/6J mouse

2018-04-04 | GSE107076 | GEO