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  1. Article ; Online: GABA

    Wei, Bo / Zhu, Yini / Yang, Peng / Han, Yong / Wang, Suyun / Wang, Xiaomei / Xia, Shuai / Song, Xiaoguang / Zhang, Zhongling / Wang, Sheng / Rondard, Philippe / Pin, Jean-Philippe / Jiang, Xinnong / Liu, Jianfeng

    iScience

    2021  Volume 24, Issue 11, Page(s) 103311

    Abstract: Neurotransmitter receptors are involved in cancer progression. Among them, the heterodimeric ... ...

    Abstract Neurotransmitter receptors are involved in cancer progression. Among them, the heterodimeric GABA
    Language English
    Publishing date 2021-10-16
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2021.103311
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: StraPep: a structure database of bioactive peptides.

    Wang, Jian / Yin, Tailang / Xiao, Xuwen / He, Dan / Xue, Zhidong / Jiang, Xinnong / Wang, Yan

    Database : the journal of biological databases and curation

    2018  Volume 2018

    Abstract: Database url: http://isyslab.info/StraPep. ...

    Abstract Database url: http://isyslab.info/StraPep.
    MeSH term(s) Amino Acid Motifs ; Databases, Protein ; Peptides/chemistry ; Peptides/classification ; Peptides/genetics ; Peptides/metabolism ; Protein Processing, Post-Translational
    Chemical Substances Peptides
    Language English
    Publishing date 2018-04-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2496706-3
    ISSN 1758-0463 ; 1758-0463
    ISSN (online) 1758-0463
    ISSN 1758-0463
    DOI 10.1093/database/bay038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: GABAB1e promotes the malignancy of human cancer cells by targeting the tyrosine phosphatase PTPN12

    Bo Wei / Yini Zhu / Peng Yang / Yong Han / Suyun Wang / Xiaomei Wang / Shuai Xia / Xiaoguang Song / Zhongling Zhang / Sheng Wang / Philippe Rondard / Jean-Philippe Pin / Xinnong Jiang / Jianfeng Liu

    iScience, Vol 24, Iss 11, Pp 103311- (2021)

    2021  

    Abstract: Summary: Neurotransmitter receptors are involved in cancer progression. Among them, the heterodimeric GABAB receptor, activated by the main inhibitory neurotransmitter GABA, is composed of the transmembrane GABAB1 and GABAB2 subunits. The oncogenic role ... ...

    Abstract Summary: Neurotransmitter receptors are involved in cancer progression. Among them, the heterodimeric GABAB receptor, activated by the main inhibitory neurotransmitter GABA, is composed of the transmembrane GABAB1 and GABAB2 subunits. The oncogenic role of the isoform GABAB1e (GB1e) containing only the extracellular domain of GABAB1 remains unclear. We revealed that GB1e is largely expressed in human breast cancer (BrCa) cell lines as well as in BrCa tissues where it is upregulated. Moreover, GB1e promoted the malignancy of BrCa cells both in vitro and in vivo. We propose that GB1e favors EGFR signaling by interacting with PTPN12 to disrupt the interaction between EGFR and PTPN12, and phosphorylation of Y230 and Y404 on GB1e is required in this process. Our data highlight that the GABBR1 gene through the expression of the GB1e isoform might play an important oncogenic role in BrCa and that GB1e is of interest for the treatment of some cancers.
    Keywords Biological sciences ; Molecular biology ; Neuroscience ; Science ; Q
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: GABA

    Xia, Shuai / He, Cong / Zhu, Yini / Wang, Suyun / Li, Huiping / Zhang, Zhongling / Jiang, Xinnong / Liu, Jianfeng

    Molecular pharmacology

    2017  Volume 92, Issue 3, Page(s) 265–277

    Abstract: G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) act in concert to regulate cell growth, proliferation, survival, and migration. Metabotropic ... ...

    Abstract G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) act in concert to regulate cell growth, proliferation, survival, and migration. Metabotropic GABA
    MeSH term(s) Allosteric Regulation ; Cell Line, Tumor ; Cell Movement ; Extracellular Signal-Regulated MAP Kinases/metabolism ; GTP-Binding Protein alpha Subunits, Gi-Go/physiology ; Humans ; Male ; Neoplasm Invasiveness ; Prostatic Neoplasms/pathology ; Receptor, Epidermal Growth Factor/genetics ; Receptors, GABA-B/physiology ; Transcriptional Activation
    Chemical Substances Receptors, GABA-B ; EGFR protein, human (EC 2.7.10.1) ; Receptor, Epidermal Growth Factor (EC 2.7.10.1) ; Extracellular Signal-Regulated MAP Kinases (EC 2.7.11.24) ; GTP-Binding Protein alpha Subunits, Gi-Go (EC 3.6.5.1)
    Language English
    Publishing date 2017-04-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 124034-1
    ISSN 1521-0111 ; 0026-895X
    ISSN (online) 1521-0111
    ISSN 0026-895X
    DOI 10.1124/mol.116.107854
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Fabrication of a photo-crosslinked gelatin hydrogel for preventing abdominal adhesion

    Wu, Wei / Ni, Qing / Xiang, Yi / Dai, Yong / Jiang, Su / Wan, Liping / Liu, Xinnong / Cui, Wenguo

    RSC advances. 2016 Sept. 27, v. 6, no. 95

    2016  

    Abstract: Natural hydrogels are promising membranes used to prevent intra-abdominal adhesion formation. Currently, natural hydrogels such as chitosan-, gelatin- or hyaluronic acid-based hydrogels are utilized to prevent adhesion. However, their uncontrollable ... ...

    Abstract Natural hydrogels are promising membranes used to prevent intra-abdominal adhesion formation. Currently, natural hydrogels such as chitosan-, gelatin- or hyaluronic acid-based hydrogels are utilized to prevent adhesion. However, their uncontrollable mechanical properties and quick degradation result in an unsatisfying short effect-time. In this study, a photocrosslinkable gelatin (GelMA) prepolymer was synthesized and developed for preventing intra-abdominal adhesion formation. Hydrogel membranes based on GelMA showed easy-handleability, non-toxic degradation and a long-lasting excellent barrier effect for up to 1 month. We have found that a 20% GelMA hydrogel membrane concentration could be employed to meet the requirements of excellent barrier effect, and the implantation of GelMA hydrogel membranes in rat abdominal cavities in experimental groups led to a considerable decrease in adhesion formation in comparison to the control group. The present study established the initial foundation for a novel and practical approach to prevent abdominal adhesion in surgery.
    Keywords adhesion ; gelatin ; hydrogels ; mechanical properties ; rats ; surgery
    Language English
    Dates of publication 2016-0927
    Size p. 92449-92453.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c6ra21435e
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Calcium and CaSR/IP3R in prostate cancer development

    Liyang Wang / MengMeng Xu / Zhongguang Li / Mengting Shi / Xin Zhou / Xinnong Jiang / Joseph Bryant / Steven Balk / Jianjie Ma / William Isaacs / Xuehong Xu

    Cell & Bioscience, Vol 8, Iss 1, Pp 1-

    2018  Volume 7

    Abstract: Abstract Prostate cancer (PrCa) progression and mortality are associated with calcium metabolism, parathyroid hormone level, and vitamin D level. However, the lack of comprehensive understanding on the molecular rationale of calcium intake, serum ... ...

    Abstract Abstract Prostate cancer (PrCa) progression and mortality are associated with calcium metabolism, parathyroid hormone level, and vitamin D level. However, the lack of comprehensive understanding on the molecular rationale of calcium intake, serum homeostasis, and cytoplasmic function, is critically hindering our ability to propose a mechanism based technique for targeting calcium in PrCa. Recently, studies performed on PrCa samples have shown that calcium-sensing receptor regulates cytoplasmic calcium levels in relation to extracellular calcium concentrations. Recent publications have also revealed the role of BAP1 and FBXL2 associated endoplasmic reticular IP3Rs in controlling the trafficking of calcium from cytosol into the mitochondria of PrCa cells. Competitive binding between BAP1, PTEN and FBXL2 to IP3Rs regulates the calcium flux of mitochondria and thereby controls apoptosis. Analysis of data released by Prostate Adenocarcinoma (Provisional TCGA) reveals that calcium related proteins play critical role in the development of PrCa. From this constantly expanding appreciation for the role of calcium outside the muscle, we predict that calcium-induced-calcium-release ryanodine receptors could also be involved in determining cell fate.
    Keywords Prostate cancer ; CaSR ; RyR ; IP3R ; BAP1 ; FBXL2 ; Biotechnology ; TP248.13-248.65 ; Biology (General) ; QH301-705.5 ; Biochemistry ; QD415-436
    Language English
    Publishing date 2018-02-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Pancreatic ductal adenocarcinoma and chronic mass-forming pancreatitis: Differentiation with dual-energy MDCT in spectral imaging mode.

    Yin, Qihua / Zou, Xinnong / Zai, Xiaodong / Wu, Zhiyuan / Wu, Qingyang / Jiang, Xingyu / Chen, Hongwei / Miao, Fei

    European journal of radiology

    2015  Volume 84, Issue 12, Page(s) 2470–2476

    Abstract: Objective: To investigate the value of dual-energy MDCT in spectral imaging in the differential diagnosis of chronic mass-forming chronic pancreatitis (CMFP) and pancreatic ductal adenocarcinoma (PDAC) during the arterial phase (AP) and the pancreatic ... ...

    Abstract Objective: To investigate the value of dual-energy MDCT in spectral imaging in the differential diagnosis of chronic mass-forming chronic pancreatitis (CMFP) and pancreatic ductal adenocarcinoma (PDAC) during the arterial phase (AP) and the pancreatic parenchymal phase (PP).
    Materials and methods: Thirty five consecutive patients with CMFP (n=15) or PDAC (n=20) underwent dual-energy MDCT in spectral imaging during AP and PP. Iodine concentrations were derived from iodine-based material-decomposition CT images and normalized to the iodine concentration in the aorta. The difference in iodine concentration between the AP and PP, contrast-to-noise ratio (CNR) and the slope K of the spectrum curve were calculated.
    Results: Normalized iodine concentrations (NICs) in patients with CMFP differed significantly from those in patients with PDAC during two double phases (mean NIC, 0.26±0.04 mg/mL vs. 0.53±0.02 mg/mL, p=0.0001; 0.07±0.02 mg/mL vs. 0.28±0.04 mg/mL, p=0.0002, respectively). There were significant differences in the value of the slope K of the spectrum curve in two groups during AP and PP (K(CMFP)=3.27±0.70 vs. K(PDAC)=1.35±0.41, P=0.001, and K(CMFP)=3.70±0.17 vs. K(PDAC)=2.16±0.70, p=0.003, respectively). CNRs at low energy levels (40-70 keV) were higher than those at high energy levels (80-40 keV).
    Conclusion: Individual patient CNR-optimized energy level images and the NIC can be used to improve the sensitivity and the specificity for differentiating CMFP from PDAC by use of dual-energy MDCT in spectral imaging with fast tube voltage switching.
    MeSH term(s) Adenocarcinoma/diagnostic imaging ; Aged ; Carcinoma, Pancreatic Ductal/diagnostic imaging ; Contrast Media ; Diagnosis, Differential ; Female ; Humans ; Iodine ; Male ; Middle Aged ; Multidetector Computed Tomography/methods ; Observer Variation ; Pancreatic Neoplasms/diagnostic imaging ; Pancreatitis, Chronic/diagnostic imaging ; ROC Curve ; Radiographic Image Enhancement ; Radiography, Dual-Energy Scanned Projection/methods ; Retrospective Studies ; Sensitivity and Specificity
    Chemical Substances Contrast Media ; Iodine (9679TC07X4)
    Language English
    Publishing date 2015-12
    Publishing country Ireland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 138815-0
    ISSN 1872-7727 ; 0720-048X
    ISSN (online) 1872-7727
    ISSN 0720-048X
    DOI 10.1016/j.ejrad.2015.09.023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Perlecan and tumor angiogenesis.

    Jiang, Xinnong / Couchman, John R

    The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society

    2003  Volume 51, Issue 11, Page(s) 1393–1410

    Abstract: Perlecan is a major heparan sulfate proteoglycan (HSPG) of basement membranes (BMs) and connective tissues. The core protein of perlecan is divided into five domains based on sequence homology to other known proteins. Commonly, the N-terminal domain I of ...

    Abstract Perlecan is a major heparan sulfate proteoglycan (HSPG) of basement membranes (BMs) and connective tissues. The core protein of perlecan is divided into five domains based on sequence homology to other known proteins. Commonly, the N-terminal domain I of mammalian perlecan is substituted with three HS chains that can bind a number of matrix molecules, cytokines, and growth factors. Perlecan is essential for metazoan life, as shown by genetic manipulations of nematodes, insects, and mice. There are also known human mutations that can be lethal. In vertebrates, new functions of perlecan emerged with the acquisition of a closed vascular system and skeletal connective tissues. Many of perlecan's functions may be related to the binding and presentation of growth factors to high-affinity tyrosine kinase (TK) receptors. Data are accumulating, as discussed here, that similar growth factor-mediated processes may have unwanted promoting effects on tumor cell proliferation and tumor angiogenesis. Understanding of these attributes at the molecular level may offer opportunities for therapeutic intervention.
    MeSH term(s) Alternative Splicing ; Animals ; Extracellular Matrix/metabolism ; Fibroblast Growth Factor 2/metabolism ; Heparan Sulfate Proteoglycans/chemistry ; Heparan Sulfate Proteoglycans/genetics ; Heparan Sulfate Proteoglycans/metabolism ; Humans ; Neoplasms/blood supply ; Neovascularization, Pathologic/metabolism ; Vascular Endothelial Growth Factor A/metabolism
    Chemical Substances Heparan Sulfate Proteoglycans ; Vascular Endothelial Growth Factor A ; Fibroblast Growth Factor 2 (103107-01-3) ; perlecan (143972-95-6)
    Language English
    Publishing date 2003-11
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, P.H.S. ; Review
    ZDB-ID 218208-7
    ISSN 1551-5044 ; 0022-1554
    ISSN (online) 1551-5044
    ISSN 0022-1554
    DOI 10.1177/002215540305101101
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: GABAB receptor complex as a potential target for tumor therapy.

    Jiang, Xinnong / Su, Li / Zhang, Qian / He, Cong / Zhang, Zhongling / Yi, Ping / Liu, Jianfeng

    The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society

    2012  Volume 60, Issue 4, Page(s) 269–279

    Abstract: γ-Aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the vertebrate central nervous system. Metabotropic GABA(B) receptors are heterodimeric G-protein-coupled receptors (GPCRs) consisting of GABA(B1) and GABA(B2) subunits. The ... ...

    Abstract γ-Aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the vertebrate central nervous system. Metabotropic GABA(B) receptors are heterodimeric G-protein-coupled receptors (GPCRs) consisting of GABA(B1) and GABA(B2) subunits. The intracellular C-terminal domains of GABA(B) receptors are involved in heterodimerization, oligomerization, and association with other proteins, which results in a large receptor complex. Multiple splice variants of the GABA(B1) subunit have been identified in which GABA(B1a) and GABA(B1b) are the most abundant isoforms in the nervous system. Isoforms GABA(B1c) through GABA(B1n) are minor isoforms and are detectable only at mRNA levels. Some of the minor isoforms have been detected in peripheral tissues and encode putative soluble proteins with C-terminal truncations. Interestingly, increased expression of GABA(B) receptors has been detected in several human cancer cells and tissues. Moreover, GABA(B) receptor agonist baclofen inhibited tumor growth in rat models. GABA(B) receptor activation not only induces suppressing the proliferation and migration of various human tumor cells but also results in inactivation of CREB (cAMP-responsive element binding protein) and ERK in tumor cells. Their structural complexity makes it possible to disrupt the functions of GABA(B) receptors in various ways, raising GABA(B) receptor diversity as a potential therapeutic target in some human cancers.
    MeSH term(s) Animals ; Baclofen/pharmacology ; Cell Movement ; Cell Proliferation ; Dimerization ; GABA Agonists/pharmacology ; Humans ; Neoplasms/metabolism ; Neoplasms/pathology ; Neoplasms/therapy ; Rats ; Receptors, GABA-B/chemistry ; Receptors, GABA-B/metabolism ; Signal Transduction
    Chemical Substances GABA Agonists ; Receptors, GABA-B ; Baclofen (H789N3FKE8)
    Language English
    Publishing date 2012-01-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 218208-7
    ISSN 1551-5044 ; 0022-1554
    ISSN (online) 1551-5044
    ISSN 0022-1554
    DOI 10.1369/0022155412438105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Phosphoinositide 3-kinase pathway activation in phosphate and tensin homolog (PTEN)-deficient prostate cancer cells is independent of receptor tyrosine kinases and mediated by the p110beta and p110delta catalytic subunits.

    Jiang, Xinnong / Chen, Sen / Asara, John M / Balk, Steven P

    The Journal of biological chemistry

    2010  Volume 285, Issue 20, Page(s) 14980–14989

    Abstract: Class IA phosphoinositide 3-kinase (PI3K) p110 catalytic subunits are activated upon Src homology 2 domain-mediated binding of their p85 regulatory subunits to tyrosine-phosphorylated pYXXM motifs in receptor tyrosine kinases (RTKs) or adaptor proteins. ... ...

    Abstract Class IA phosphoinositide 3-kinase (PI3K) p110 catalytic subunits are activated upon Src homology 2 domain-mediated binding of their p85 regulatory subunits to tyrosine-phosphorylated pYXXM motifs in receptor tyrosine kinases (RTKs) or adaptor proteins. The PI3K pathway is activated by phosphate and tensin homolog (PTEN) loss in most prostate cancers (PCa), but the contribution of upstream RTKs that may be targeted therapeutically has not been assessed. Immunoblotting of p85-associated proteins in serum-starved PTEN-deficient LNCaP and C4-2 PCa cells showed a small set of discrete tyrosine-phosphorylated proteins, but these proteins were not recognized by an anti-pYXXM motif antibody and were not found in PTEN-deficient PC3 PCa cells. LC/MS/MS using label-free proteomics and immunoblotting showed that p85 was associated primarily with p110beta and p110delta. An interaction with ErbB3 was also detected but was independent of ErbB3 tyrosine phosphorylation and was not required for basal PI3K activity. Basal tyrosine phosphorylation of p110beta and p110delta could be blocked by c-Src inhibitors, but this did not suppress PI3K activity, which was similarly independent of Ras. Basal PI3K activity was mediated by p110beta in PC3 cells and by both p110beta and p110delta in LNCaP cells, whereas p110alpha was required for PI3K activation in response to RTK stimulation by heregulin-beta1. These findings show that basal PI3K activity in PTEN-deficient PCa cells is RTK-independent and can be mediated by p110beta and p110delta. Increased p110beta expression in PCa may be required for RTK-independent PI3K pathway activation in adult prostate epithelium with genetic or epigenetic PTEN down-regulation.
    MeSH term(s) Catalytic Domain ; Cell Line, Tumor ; Chromatography, Liquid ; Enzyme Activation ; Humans ; Male ; PTEN Phosphohydrolase/genetics ; PTEN Phosphohydrolase/physiology ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Prostatic Neoplasms/enzymology ; Prostatic Neoplasms/pathology ; Receptor Protein-Tyrosine Kinases/metabolism ; Tandem Mass Spectrometry
    Chemical Substances Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; Receptor Protein-Tyrosine Kinases (EC 2.7.10.1) ; PTEN Phosphohydrolase (EC 3.1.3.67) ; PTEN protein, human (EC 3.1.3.67)
    Language English
    Publishing date 2010-03-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1074/jbc.M109.085696
    Database MEDical Literature Analysis and Retrieval System OnLINE

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