Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1214006 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Airway remodeling is a main pathological feature of asthma. The current therapy for asthma is mainly targeted for reducing inflammation, not particularly for airway remodeling. Herein, developing alternative and more effective therapy to attenuate remodeling is worthy of further study. Gu-Ben-Fang-Xiao Decoction (GBFXD) has been used to treat asthma for decades effectively and safely. In present study, GBFXD significantly regulated the airway inflammation, collagen deposition and the molecules relevant to airway remodeling such as Vimentin, α-SMA, hydroxyproline (HYP), and E-cadherin in chronic remission asthma (CRA) murine model. Subsequently, we found the overlapping differentially expressed proteins (DEPs) between Model/Control and GBFXD/Model mainly belonged to Collagen and Laminin which were extracellular matrix (ECM) proteins by iTRAQ proteomics. In addition, the KEGG analysis showed GBFXD could regulate pathways related to airway remodeling, such as ECM-receptor interaction, Focal adhesion, and PI3K/AKT signaling pathway which were top three pathways of most DEPs (Model/Control and GBFXD/Model) significantly enriched simultaneously. Further validation research showed GBFXD regulated Reticulon-4 (RTN4), thus suppressing the activation of PI3K/AKT pathway to alleviate the ECM proteins deposition. Thus, our findings indicate GBFXD regulate the PI3K/AKT pathway via RTN4 to improve airway remodeling and provide a new insight into the molecular mechanism of GBFXD for treating CRA.
2021-09-09 | PXD020711 | Pride
Project description:The PI3K-AKT pathway is known to regulate cytokines in dust mite-induced pediatric asthma. However, the underlying molecular steps involved are not clear. In order to clarify further the molecular steps, this study investigated the expression of certain genes and the involvement of miRNAs in the PI3K-AKT pathway, which might affect the resultant cytokine-secretion. In-vivo and in-vitro ELISA, qRT-PCR, western-blot and microarrays analyses were used in this study. A down-expression of miRNA-27b-3p in dust mite induced asthma group (group D) was found by microarray analysis. This was confirmed by qRT-PCR that found the miRNA-27b-3p transcripts that regulated the expression of SYK and EGFR were also significantly decreased (p < 0.01) in group D. The transcript levels of the SYK and PI3K genes were higher, while those of EGFR were lower in the former group. Meanwhile, we found significant differences in plasma concentrations of some cytokines between the dust mite-induced asthma subjects and the healthy controls. On the other hand, this correlated with the finding that the transcripts of SYK and its downstream PI3K were decreased in HBE transfected with miRNA-27b-3p, but were increased in HBE transfected with the inhibitor in vitro. Our results indicate that the differential expression of the miRNAs in dust mite-induced pediatric asthma may regulate their target gene SYK and may have an impact on the PI3K-AKT pathway associated with the production of cytokines. These findings should add new insight into the pathogenesis of pediatric asthma.
2018-09-20 | GSE120172 | GEO
Project description:The airway epithelium of asthmatics is characterized by intrinsically abnormal wound repair that may contribute to disease pathobiology. In this study, we show that in asthma, the airway epithelial cells at the leading edge of a wound display aberrant migration patterns, reduced expression of α5 and β1 integrin subunits at baseline and during wound repair, resulting in dysregulated cell migration and an inability to fully repair. Transcriptional profiling identified the PI3K/Akt signaling pathway as the top upstream transcriptional regulator of integrin α5β1. Significantly, activation of Akt signaling enhanced airway epithelial repair in cultures derived from asthmatic children via upregulation of α5 and β1 integrin subunits. Conversely, inhibition of the PI3K/Akt signaling pathway in airway epithelial cultures from non-asthmatic children attenuated epithelial repair and reduced α5 and β1 integrin expression. Importantly, the FDA-approved drug celecoxib, and its non-COX2 inhibitory analogue dimethyl-celecoxib, also stimulated the PI3K/Akt/integrin α5β1 axis and restored airway epithelial repair in cells from asthmatics. Thus, targeting the PI3K/Akt pathway may represent a novel therapeutic avenue for asthma.
2020-03-25 | GSE117489 | GEO
Project description:Padala2017- ERK, PI3K/Akt and Wnt signalling
network (EGFR overexpression)
Crosstalk model of the ERK, Wnt and Akt
signalling pathways with EGFR overexpression.
This model is described in the article:
Cancerous perturbations
within the ERK, PI3K/Akt, and Wnt/?-catenin signaling network
constitutively activate inter-pathway positive feedback
loops.
Padala RR, Karnawat R, Viswanathan
SB, Thakkar AV, Das AB.
Mol Biosyst 2017 May; 13(5):
830-840
Abstract:
Perturbations in molecular signaling pathways are a result
of genetic or epigenetic alterations, which may lead to
malignant transformation of cells. Despite cellular robustness,
specific genetic or epigenetic changes of any gene can trigger
a cascade of failures, which result in the malfunctioning of
cell signaling pathways and lead to cancer phenotypes. The
extent of cellular robustness has a link with the architecture
of the network such as feedback and feedforward loops.
Perturbation in components within feedback loops causes a
transition from a regulated to a persistently activated state
and results in uncontrolled cell growth. This work represents
the mathematical and quantitative modeling of ERK, PI3K/Akt,
and Wnt/?-catenin signaling crosstalk to show the dynamics of
signaling responses during genetic and epigenetic changes in
cancer. ERK, PI3K/Akt, and Wnt/?-catenin signaling crosstalk
networks include both intra and inter-pathway feedback loops
which function in a controlled fashion in a healthy cell. Our
results show that cancerous perturbations of components such as
EGFR, Ras, B-Raf, PTEN, and components of the destruction
complex cause extreme fragility in the network and
constitutively activate inter-pathway positive feedback loops.
We observed that the aberrant signaling response due to the
failure of specific network components is transmitted
throughout the network via crosstalk, generating an additive
effect on cancer growth and proliferation.
This model is hosted on
BioModels Database
and identified by:
BIOMD0000000656.
To cite BioModels Database, please use:
Chelliah V et al. BioModels: ten-year
anniversary. Nucl. Acids Res. 2015, 43(Database
issue):D542-8.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to
the public domain worldwide. Please refer to
CC0
Public Domain Dedication for more information.
2024-09-02 | BIOMD0000000656 | BioModels
Project description:This study aimed to investigate the effects and underlying mechanisms of tormentic acid (TA) on carbon tetrachloride (CCl4)-induced liver fibrosis in rats. The rats were intragastrically administered with 50% CCl4 for 9 weeks to induce hepatic fibrosis, followed by various agents for 6 weeks. Transcriptomic analysis was carried out to predict the potential targets, and then multiple examinations were performed to verify the prediction. The results showed that TA significantly alleviated liver injury and fibrosis, as evidenced by the ameliorative pathological tissue, low transaminase activity, and decreased collagen accumulation. Besides, TA markedly reduced hepatocyte apoptosis by regulating the expression of caspase-3 and Bcl-2 families. The transcriptomic analysis revealed 2,173 differentially expressed genes (DEGs) between the TA and model groups, which could be enriched in the metabolic pathways and the PI3K/Akt and NF-κB signaling pathways. The metabolomics analysis showed that TA could regulate the glycerophospholipid metabolism pathway by regulating the synthesis of phosphatidylserines, phosphatidylethanolamines and phosphatidylcholines. Moreover, the integrative analysis of the transcriptomics and metabolomics data indicated that TA inhibited the glycerophospholipid metabolism pathway by inhibiting the expression of LPCAT4, PTDSS2, PLA2G2A and CEPT1. In addition, the relevant signaling pathways analysis confirmed that TA inhibited HSCs activation by blocking the PI3K/Akt/mTOR pathway and ameliorated inflammatory injury by inhibiting the NF-κB pathway. In conclusion, TA significantly alleviates liver fibrosis in vivo by inhibiting the glycerophospholipid metabolism pathway and the PI3K/Akt/mTOR and NF-κB signaling pathways.
2021-11-13 | GSE188604 | GEO
Project description:Adenocarcinoma is the most common histologic subtype of lung cancer, which is the leading cause of cancer death. We and others previously identified TTF-1, a lineage-specific transcription factor required for branching morphogenesis and physiological lung functions, as a lineage-survival oncogene in lung adenocarcinoma. However, how TTF-1 mediates survival signals remains elusive. Here we show that TTF-1 induces receptor tyrosine kinase-like orphan receptor 1 (ROR1), which in turn mediates TTF-1 survival signaling in lung adenocarcinoma. Inhibition of ROR1 impaired prosurvival signaling through the PI3K-AKT pathway and induced nuclear accumulation of FOXO1. These were found to be imposed, at least in part, through PTEN inactivation via c-Src, while ROR1 was shown to physically interact with and phosphorylate c-Src. ROR1 inhibition also elicited marked p38 activation, provoking ill-balance between prosurvival and proapoptotic signaling, and consequential “oncogenic shock.” In addition, we found that ROR1 is crucially involved in EGFR- and MET-mediated prosurvival signaling. ROR1 knockdown effectively induced apoptosis in lung adenocarcinoma cell lines with acquired EGFR TKI resistance conferred by a secondary T790M EGFR mutation, or HGF-elicited MET signaling and resultant switching of the addicted receptor tyrosine kinases (RTKs). Taken together, our findings indicate that ROR1 RTK is a very promising molecular target for development of a novel therapeutic means to treat this hard-to-cure cancer. Dye-swap experiment, vector control vs. stable TTF-1 transfectant of HPL1D, immortalized human peripheral lung epithelial cell line.
2011-12-31 | E-GEOD-25830 | biostudies-arrayexpress
Project description:U11 may alter gene expression by affecting the PI3K-Akt signaling pathway and NF-kappa B signaling pathway, regulating alternative splicing events of FN1 and RPL22L1, and ultimately leading to the development of bladder cancer.
2021-06-30 | GSE171744 | GEO
Project description:Padala2017- ERK, PI3K/Akt and Wnt signalling
network (PI3K mutated)
Crosstalk model of the ERK, Wnt and Akt
signalling pathways with mutated PI3K.
This model is described in the article:
Cancerous perturbations
within the ERK, PI3K/Akt, and Wnt/?-catenin signaling network
constitutively activate inter-pathway positive feedback
loops.
Padala RR, Karnawat R, Viswanathan
SB, Thakkar AV, Das AB.
Mol Biosyst 2017 May; 13(5):
830-840
Abstract:
Perturbations in molecular signaling pathways are a result
of genetic or epigenetic alterations, which may lead to
malignant transformation of cells. Despite cellular robustness,
specific genetic or epigenetic changes of any gene can trigger
a cascade of failures, which result in the malfunctioning of
cell signaling pathways and lead to cancer phenotypes. The
extent of cellular robustness has a link with the architecture
of the network such as feedback and feedforward loops.
Perturbation in components within feedback loops causes a
transition from a regulated to a persistently activated state
and results in uncontrolled cell growth. This work represents
the mathematical and quantitative modeling of ERK, PI3K/Akt,
and Wnt/?-catenin signaling crosstalk to show the dynamics of
signaling responses during genetic and epigenetic changes in
cancer. ERK, PI3K/Akt, and Wnt/?-catenin signaling crosstalk
networks include both intra and inter-pathway feedback loops
which function in a controlled fashion in a healthy cell. Our
results show that cancerous perturbations of components such as
EGFR, Ras, B-Raf, PTEN, and components of the destruction
complex cause extreme fragility in the network and
constitutively activate inter-pathway positive feedback loops.
We observed that the aberrant signaling response due to the
failure of specific network components is transmitted
throughout the network via crosstalk, generating an additive
effect on cancer growth and proliferation.
This model is hosted on
BioModels Database
and identified by:
BIOMD0000000652.
To cite BioModels Database, please use:
Chelliah V et al. BioModels: ten-year
anniversary. Nucl. Acids Res. 2015, 43(Database
issue):D542-8.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to
the public domain worldwide. Please refer to
CC0
Public Domain Dedication for more information.
2024-09-02 | BIOMD0000000652 | BioModels
Project description:Padala2017- ERK, PI3K/Akt and Wnt signalling
network (bRaf mutated)
Crosstalk model of the ERK, Wnt and Akt
signalling pathways with bRaf mutation
This model is described in the article:
Cancerous perturbations
within the ERK, PI3K/Akt, and Wnt/?-catenin signaling network
constitutively activate inter-pathway positive feedback
loops.
Padala RR, Karnawat R, Viswanathan
SB, Thakkar AV, Das AB.
Mol Biosyst 2017 May; 13(5):
830-840
Abstract:
Perturbations in molecular signaling pathways are a result
of genetic or epigenetic alterations, which may lead to
malignant transformation of cells. Despite cellular robustness,
specific genetic or epigenetic changes of any gene can trigger
a cascade of failures, which result in the malfunctioning of
cell signaling pathways and lead to cancer phenotypes. The
extent of cellular robustness has a link with the architecture
of the network such as feedback and feedforward loops.
Perturbation in components within feedback loops causes a
transition from a regulated to a persistently activated state
and results in uncontrolled cell growth. This work represents
the mathematical and quantitative modeling of ERK, PI3K/Akt,
and Wnt/?-catenin signaling crosstalk to show the dynamics of
signaling responses during genetic and epigenetic changes in
cancer. ERK, PI3K/Akt, and Wnt/?-catenin signaling crosstalk
networks include both intra and inter-pathway feedback loops
which function in a controlled fashion in a healthy cell. Our
results show that cancerous perturbations of components such as
EGFR, Ras, B-Raf, PTEN, and components of the destruction
complex cause extreme fragility in the network and
constitutively activate inter-pathway positive feedback loops.
We observed that the aberrant signaling response due to the
failure of specific network components is transmitted
throughout the network via crosstalk, generating an additive
effect on cancer growth and proliferation.
This model is hosted on
BioModels Database
and identified by:
BIOMD0000000653.
To cite BioModels Database, please use:
Chelliah V et al. BioModels: ten-year
anniversary. Nucl. Acids Res. 2015, 43(Database
issue):D542-8.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to
the public domain worldwide. Please refer to
CC0
Public Domain Dedication for more information.
2024-09-02 | BIOMD0000000653 | BioModels