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Examination of the role of peptidylarginine deiminase 2 (PAD2) in gene expression in MCF-7 breast cancer cells

ABSTRACT: To investigate the potential role of peptidylarginine deiminase 2 (PAD2) in gene expression, we created stable shRNA scrambled control and PAD2 knockdown MCF-7 breast cancer cell lines. After validating the specific knockdown of PAD2 at the mRNA and protein level, we utilized an Agilent microarray platform to compare the gene expression profile of the two cell lines to generate a candidate list of genes regulated by PAD2.

ORGANISM(S): Homo sapiens

PROVIDER: GSE37087 | GEO | 2012/04/07

SECONDARY ACCESSION(S): PRJNA158129

REPOSITORIES: GEO

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Examination of the role of peptidylarginine deiminase 2 (PAD2) in gene expression in MCF-7 breast cancer cells

Project description:To investigate the potential role of peptidylarginine deiminase 2 (PAD2) in gene expression, we created stable shRNA scrambled control and PAD2 knockdown MCF-7 breast cancer cell lines. After validating the specific knockdown of PAD2 at the mRNA and protein level, we utilized an Agilent microarray platform to compare the gene expression profile of the two cell lines to generate a candidate list of genes regulated by PAD2. Control and PAD2 knockdown cells were created by stably transfecting shRNA constructs into MCF-7 cells. Stable cells were selected using puromycin and knockdown validate at the mRNA and protein level. Microarray data represents 4 independent biological replicates contain control and PAD2 knockdown samples.

2012-04-06 | E-GEOD-37087 | biostudies-arrayexpress

Peptidylarginine deiminase 4 promotes the renal infiltration of neutrophils and exacerbates the TLR7 agonist-induced lupus mice

Project description:Peptidylarginine deiminase 4 (PAD4), encoded by PADI4, plays critical roles in the immune system. The pathological roles of PAD4 were investigated in lupus model mice. PAD4-regulated pathways were identified by RNA-sequencing of WT and Padi4 KO neutrophils.

2020-02-19 | GSE145422 | GEO

Presence of peptidylarginine deiminase in Porphyromonas gingivalis-related species

Project description:Presence of peptidylarginine deiminase in Porphyromonas gingivalis-related species

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Peptidylarginine deiminase 2 citrullinates MZB1 and promotes the secretion of IgM and IgA

Project description:MZB1 is an endoplasmic reticulum residential protein preferentially expressed in plasma cells, marginal zone and B1 B cells. Recent studies on murine B cells shows that it interacts with the tail piece of IgM and IgA heavy chain and promotes the secretion of these two classes of immunoglobulin. However, its role in primary human B cells has yet to be determined and how its function is regulated is still unknown. The conversion of peptidylarginine to peptidycitrulline, also known as citrullination, by peptidylarginine deiminases (PADs) can critically influence the function of proteins in immune cells, such as neutrophils and T cells; however, the role of PADs in B cells remains to be elucidated. In an unbiased analysis of the human citrullinomeic analysis, we found that MZB1 was preferentially enriched in the pool of citrullinated lung proteins obtained from patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD) compared to those from idiopathic pulmonary fibrosis or chronic obstructive pulmonary diseases. The citrullination of MZB1 was confirmed with mass spectrometry, in vitro citrullination, and binding by phenylglyoxal in the absence or presence of a PAD2-specific inhibitor AFM-30a. Ablation or pharmacological inhibition of PAD2 in primary human B cells attenuated the secretion of IgM and IgA but not IgG or the differentiation of IgM or IgA-expressing plasmablasts, recapitulating the effect of ablating MZB1. In addition, the physical interaction between endogenous MZB1 and IgM/IgA was attenuated by AFM-30a. Taken together, our data confirm the function of MZB1 in primary human plasmablasts and suggest that PAD2 promotes IgM/IgA secretion by citrullinating MZB1, thereby contributing to the pathogenesis of rheumatoid arthritis and RA-ILD.

2023-11-23 | PXD047044 | Pride

Peptidylarginine deiminases 2 and 4 modulate innate and adaptive immune responses in TLR-7 dependent lupus

Project description:Peptidylarginine deiminases (PADs) play critical roles in the development and progression of autoimmune diseases. PAD4 is involved in systemic lupus erythematosus (SLE) pathogenesis while the role of PAD2 in immune dysregulation in SLE is not clear. The differential roles of PAD2 and PAD4 in the progression of murine SLE and in modulation of innate and adaptive immunity were examined. The transcriptome of lymphoid organs from imiquimod-treated PAD2/4 and control mice was characterized and elucidated using RNASeq technology.

2019-01-17 | GSE121751 | GEO

Transcription profiling of effected genes by PAD2 and compound 1B8

Project description:To understand the growth inhibition of peptidylarginine deiminase 2 (PAD2) and small molecule 1B8, colon cancer SW480 cells were treated with compound 1B8 for 24 hours, SW480 cells were transfected with humanPAD2 vector for 24 hours. Cells were harvested and total RNA was extracted using TRIZol method followed by Agilent DNA microarray analysis. To profile the effected genes by compound 1B8, SW480 cells were treated with DMSO (control) and 10uM 1B8 in triplicates in 6-well plate, cells were harvested 24 hours later. To compare the effected genes by compound 1B8 and PAD2 overexpression, SW480 cells were transfected with PAD2 and pIRES2-EGFP empty vector in triplicates in 6 well plates, cells were harvested in 24 hours. All the cells were harvested and total RNA was extracted using TRIZol method followed by Agilent DNA microarray analysis.

2016-09-30 | E-MTAB-4452 | biostudies-arrayexpress

Peptidylarginine Deiminase inhibition abolishes the production of large extracellular vesicles from Giardia intestinalis, affecting host-pathogen interactions by hindering adhesion to host cells

Project description:Giardia intestinalis is a microaerophilic protozoan that is an important etiologic agent of diarrhea worldwide. There is evidence that under diverse conditions, the parasite is capable of shedding extracellular vesicles (EVs) which modulate the physiopathology of giardiasis. Here we describe new features of G. intestinalis EV production, revealing its capacity to shed two different enriched EV populations (large (LEV) and small extracellular vesicles (SEV)) and identified relevant adhesion functions associated with the larger population. Proteomic analysis revealed differences in proteins relevant for virulence and host-pathogen interactions between the two EV subsets. We assessed the effect of two recently identified inhibitors of EV release in mammalian cells, namely peptidylarginine deiminase (PAD) inhibitor and cannabidiol (CBD), on EV release from Giardia and their putative effects on host-pathogen interactions. PAD-inhibitor Cl-amidine and CBD were both able to effectively reduce EV shedding, the PAD-inhibitor specifically affecting the release of LEVs and reducing parasite attachment to host cells in vitro. The strong efficacy of the PAD-inhibitor on Giardia EV release indicates a phylogenetically conserved pathway of PAD-mediated EV release, most likely affecting the Giardia arginine deiminase (GiADI) homolog of mammalian PADs. Our results suggest that LEVs and SEVs are differently involved in protozoa communication, and that treatment with EV-inhibitors may be a novel strategy for recurrent giardiasis treatment.

2020-09-21 | PXD018460 | Pride

Peptidylarginine deiminase 4 promotes the renal infiltration of neutrophils and exacerbates the TLR7 agonist-induced lupus mice

Project description:Peptidylarginine deiminase 4 promotes the renal infiltration of neutrophils and exacerbates the TLR7 agonist-induced lupus mice

| PRJNA607201 | ENA

Peptidylarginine deiminase IV (PADI4) has a novel tumor cell-autonomous suppressor role in regulating breast cancer stem cells

Project description:Peptidylarginine deiminase IV (PADI4) has a novel tumor cell-autonomous suppressor role in regulating breast cancer stem cells

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Peptidylarginine deiminase IV (PADI4) has a novel tumor cell-autonomous suppressor role in regulating breast cancer stem cells [Array]

Project description:Peptidylarginine deiminase IV (PADI4) has a novel tumor cell-autonomous suppressor role in regulating breast cancer stem cells [Array]

| PRJNA575748 | ENA

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