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https://www.readbyqxmd.com/read/28123521/crkl-overexpression-promotes-cell-proliferation-and-inhibits-apoptosis-in-endometrial-carcinoma
#1
Le Cai, He Wang, Qing Yang
The v-Crk avian sarcoma virus CT10 oncogene homolog-like (CRKL) protein is important in cancer progression. However, its expression pattern and biological roles in human endometrial carcinoma remain unexplored. The potential mechanism of CRKL-induced cancer progression is still unclear. The present study aimed to explore the expression pattern and biological roles of CRKL in human endometrial carcinoma. Using immunohistochemistry, it was observed that the CRKL protein was overexpressed in 50.5% (44/87) of endometrial carcinoma tissues...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28121514/genetic-drivers-of-kidney-defects-in-the-digeorge-syndrome
#2
Esther Lopez-Rivera, Yangfan P Liu, Miguel Verbitsky, Blair R Anderson, Valentina P Capone, Edgar A Otto, Zhonghai Yan, Adele Mitrotti, Jeremiah Martino, Nicholas J Steers, David A Fasel, Katarina Vukojevic, Rong Deng, Silvia E Racedo, Qingxue Liu, Max Werth, Rik Westland, Asaf Vivante, Gabriel S Makar, Monica Bodria, Matthew G Sampson, Christopher E Gillies, Virginia Vega-Warner, Mariarosa Maiorana, Donald S Petrey, Barry Honig, Vladimir J Lozanovski, Rémi Salomon, Laurence Heidet, Wassila Carpentier, Dominique Gaillard, Alba Carrea, Loreto Gesualdo, Daniele Cusi, Claudia Izzi, Francesco Scolari, Joanna A E van Wijk, Adela Arapovic, Mirna Saraga-Babic, Marijan Saraga, Nenad Kunac, Ali Samii, Donna M McDonald-McGinn, Terrence B Crowley, Elaine H Zackai, Dorota Drozdz, Monika Miklaszewska, Marcin Tkaczyk, Przemyslaw Sikora, Maria Szczepanska, Malgorzata Mizerska-Wasiak, Grazyna Krzemien, Agnieszka Szmigielska, Marcin Zaniew, John M Darlow, Prem Puri, David Barton, Emilio Casolari, Susan L Furth, Bradley A Warady, Zoran Gucev, Hakon Hakonarson, Hana Flogelova, Velibor Tasic, Anna Latos-Bielenska, Anna Materna-Kiryluk, Landino Allegri, Craig S Wong, Iain A Drummond, Vivette D'Agati, Akira Imamoto, Jonathan M Barasch, Friedhelm Hildebrandt, Krzysztof Kiryluk, Richard P Lifton, Bernice E Morrow, Cecile Jeanpierre, Virginia E Papaioannou, Gian Marco Ghiggeri, Ali G Gharavi, Nicholas Katsanis, Simone Sanna-Cherchi
Background The DiGeorge syndrome, the most common of the microdeletion syndromes, affects multiple organs, including the heart, the nervous system, and the kidney. It is caused by deletions on chromosome 22q11.2; the genetic driver of the kidney defects is unknown. Methods We conducted a genomewide search for structural variants in two cohorts: 2080 patients with congenital kidney and urinary tract anomalies and 22,094 controls. We performed exome and targeted resequencing in samples obtained from 586 additional patients with congenital kidney anomalies...
25, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28029654/abcg2-confers-promotion-in-gastric-cancer-through-modulating-downstream-crkl-in-vitro-combining-with-biostatistics-mining
#3
Junqing Wang, Zhou Yunyun, Lu Wang, Xuehua Chen, Zhenggang Zhu
ABCG2, member of ATP-binding cassette (ABC) transporter family, is known as crucial regulator related to multi-drug resistance in human tumors and has recently been putatively studied as human carcinoma cell biomarker. While, effects of ABCG2 on human gastric cancer (GC) has not been illustrated thoroughly. In this study, by applying biostatistics mining methods, we observed that ABCG2 is frequently aberrantly expressed in GC patients through exploring dataset of GSE19826 in NCBI GEO database. Contemporary, extreme up-regulation of ABCG2 was discovered in both GC specimens and cell lines of our center, from which we observed high level of ABCG2 associated with GC clinicopathologic features and poor outcomes...
December 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27928132/improved-fret-biosensor-for-the-measurement-of-bcr-abl-activity-in-chronic-myeloid-leukemia-cells
#4
Mika Horiguchi, Mari Fujioka, Takeshi Kondo, Yoichiro Fujioka, Xinxin Li, Kosui Horiuchi, Aya O Satoh, Prabha Nepal, Shinya Nishide, Asuka Nanbo, Takanori Teshima, Yusuke Ohba
Although the co-development of companion diagnostics with molecular targeted drugs is desirable, truly efficient diagnostics are limited to diseases in which chromosomal translocations or overt mutations are clearly correlated with drug efficacy. Moreover, even for such diseases, few methods are available to predict whether drug administration is effective for each individual patient whose disease is expected to respond to the drug(s). We have previously developed a biosensor based on the principle of Förster resonance energy transfer to measure the activity of the tyrosine kinase BCR-ABL and its response to drug treatment in patient-derived chronic myeloid leukemia cells...
February 2, 2017: Cell Structure and Function
https://www.readbyqxmd.com/read/27926512/depression-of-oncogenecity-by-dephosphorylating-and-degrading-bcr-abl
#5
Miao Gao, Zheng-Lan Huang, Kun Tao, Qing Xiao, Xin Wang, Wei-Xi Cao, Min Xu, Jing Hu, Wen-Li Feng
Aberrant phosphorylation and overexpression of BCR-ABL fusion protein are responsible for the main pathogenesis in chronic myeloid leukemia (CML). Phosphorylated BCR-ABL Y177 recruits GRB2 adaptor and triggers leukemic RAS-MAPK and PI3K-AKT signals. In this study, we engineered a SPOA system to dephosphorylate and degrade BCR-ABL by targeting BCR-ABL Y177. We tested its effect on BCR-ABL phosphorylation and expression, as well as cell proliferation and apoptosis in CML cells. We found that SPOA remarkably dephosphorylated BCR-ABL Y177, prevented GRB2 recruitment, and uncoupled RAS-MAPK and PI3K-AKT signals...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/27899998/expression-level-of-crkl-and-axl-combined-with-exon-19-deletion-in-egfr-and-alk-status-confer-differential-prognosis-of-lung-adenocarcinoma-subtypes
#6
Yi-Ran Cai, Yu-Jie Dong, Hong-Bo Wu, Da-Ping Yu, Li-Juan Zhou, Dan Su, Li Zhang, Xue-Jing Chen
Non-small cell lung cancer (NSCLC) is a lethal cancer-related disease in population. Adenocarcinoma (AC) is subclassified into several subtypes based on the new classification by the International Association for the Study of Lung Cancer, American Thoracic Society and European Respiratory Society in 2011. Correlation between original expression of Crk-like (CRKL) and anaplastic lymphoma receptor tyrosine kinase in diverse histological components of AC and epidermal growth factor receptor (EGFR) or ALK status was evaluated by immunohistochemistry and sequencing in present study...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895735/crk-like-adapter-protein-is-overexpressed-in-cervical-carcinoma-facilitates-proliferation-invasion-and-chemoresistance-and-regulates-src-and-akt-signaling
#7
Hong Ji, Bo Li, Shitai Zhang, Zheng He, Yang Zhou, Ling Ouyang
Overexpression of Crk-like (CrkL) adapter protein has been implicated in a number of types of human cancer. However, its involvement in human cervical carcinoma remains unclear. The present study aimed to explore the clinical significance and biological characteristics of CrkL in human cervical carcinoma. CrkL protein expression was examined in tissue samples from 92 cases of cervical carcinoma using immunohistochemistry, and was found to be overexpressed in 48.9% (45/92 cases). CrkL was transfected into HeLa and CaSki cervical carcinoma cell lines and its effects on biological behavior were examined...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27846244/slc7a5-functions-as-a-downstream-target-modulated-by-crkl-in-metastasis-process-of-gastric-cancer-sgc-7901-cells
#8
Junqing Wang, Xiaochun Fei, Weize Wu, Xuehua Chen, Liping Su, Zhenggang Zhu, Yunyun Zhou
SLC7A5, who is also named LAT-1, has been validated as a promoter regulated by miRNA-126 in our previous research for gastric cancer cells. However, the mechanisms driving SLC7A5 to affect the bio-function of gastric cancer cells are unclear, remaining us lots of to elucidate. The aim of this study is to investigate the regulating effect of CRKL, one of the critical genes involving with gastric cancer progression, on SLC7A5 expression. By studying the gastric cancer cell lines and clinical pathological specimens, we found that the expression of SLC7A5 was significantly correlated to CRKL...
2016: PloS One
https://www.readbyqxmd.com/read/27807028/fibroblast-growth-requires-ct10-regulator-of-kinase-crk-and-crk-like-crkl
#9
Taeju Park, Mateusz Koptyra, Tom Curran
CT10 regulator of kinase (Crk) and Crk-like (CrkL) are the cellular counterparts of the viral oncogene v-Crk Elevated levels of Crk and CrkL have been observed in many human cancers; inhibition of Crk and CrkL expression reduced the tumor-forming potential of cancer cell lines. Despite a close relationship between the Crk family proteins and tumorigenesis, how Crk and CrkL contribute to cell growth is unclear. We ablated endogenous Crk and CrkL from cultured fibroblasts carrying floxed alleles of Crk and CrkL by transfection with synthetic Cre mRNA (synCre)...
December 16, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27686861/a-pre-metazoan-origin-of-the-crk-gene-family-and-co-opted-signaling-network
#10
Yoko Shigeno-Nakazawa, Takuma Kasai, Sewon Ki, Elina Kostyanovskaya, Jana Pawlak, Junya Yamagishi, Noriaki Okimoto, Makoto Taiji, Mariko Okada, Jody Westbrook, Yoko Satta, Takanori Kigawa, Akira Imamoto
CRK and CRKL adapter proteins play essential roles in development and cancer through their SRC homology 2 and 3 (SH2 and SH3) domains. To gain insight into the origin of their shared functions, we have investigated their evolutionary history. We propose a term, crk/crkl ancestral (crka), for orthologs in invertebrates before the divergence of CRK and CRKL in the vertebrate ancestor. We have isolated two orthologs expressed in the choanoflagellate Monosiga brevicollis, a unicellular relative to the metazoans...
September 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27629806/genomic-findings-in-patients-with-clinical-suspicion-of-22q11-2-deletion-syndrome
#11
Magdalena Koczkowska, Jolanta Wierzba, Robert Śmigiel, Maria Sąsiadek, Magdalena Cabała, Ryszard Ślężak, Mariola Iliszko, Iwona Kardaś, Janusz Limon, Beata S Lipska-Ziętkiewicz
Chromosome 22q11.2 deletion syndrome, one of the most common human genomic syndromes, has highly heterogeneous clinical presentation. Patients usually harbor a 1.5 to 3 Mb hemizygous deletion at chromosome 22q11.2, resulting in pathognomic TBX1, CRKL and/or MAPK1 haploinsufficiency. However, there are some individuals with clinical features resembling the syndrome who are eventually diagnosed with genomic disorders affecting other chromosomal regions. The objective of this study was to evaluate the additive value of high-resolution array-CGH testing in the cohort of 41 patients with clinical features of 22q11...
February 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/27620165/vasodilator-stimulated-phosphoprotein-vasp-dependent-and-independent-pathways-regulate-thrombin-induced-activation-of-rap1b-in-platelets
#12
Peter M Benz, Hebatullah Laban, Joana Zink, Lea Günther, Ulrich Walter, Stepan Gambaryan, Karim Dib
BACKGROUND: Vasodilator-Stimulated Phosphoprotein (VASP) is involved in the inhibition of agonist-induced platelet aggregation by cyclic nucleotides and the adhesion of platelets to the vascular wall. αIIbβ3 is the main integrin responsible for platelet activation and Rap1b plays a key role in integrin signalling. We investigated whether VASP is involved in the regulation of Rap1b in platelets since VASP-null platelets exhibit augmented adhesion to endothelial cells in vivo. METHODS: Washed platelets from wild type and VASP-deficient mice were stimulated with thrombin, the purinergic receptors agonist ADP, or the thromboxane A2 receptor agonist U46619 and Rap1b activation was measured using the GST-RalGDS-RBD binding assay...
13, 2016: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/27460916/protective-effects-of-imatinib-on-ischemia-reperfusion-injury-in-rat-lung
#13
Satona Tanaka, Toyofumi F Chen-Yoshikawa, Moto Kajiwara, Toshi Menju, Keiji Ohata, Mamoru Takahashi, Takeshi Kondo, Kyoko Hijiya, Hideki Motoyama, Akihiro Aoyama, Satohiro Masuda, Hiroshi Date
BACKGROUND: Ischemia/reperfusion injury (IRI) remains a significant complication after lung transplantation. Endothelial damage and inflammation contribute to its development. Imatinib has been reported to regulate vascular permeability by maintaining endothelial junctions and showing antiinflammatory effects through inhibition of the Abl kinases. We hypothesized that imatinib could have a protective effect against IRI. METHODS: Male Lewis rats were heparinized and underwent left thoracotomy, and the left hilum was clamped for 90 minutes followed by reperfusion for 120 minutes...
November 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27133071/the-effects-of-micro-429-on-inhibition-of-cervical-cancer-cells-through-targeting-zeb1-and-crkl
#14
Yan Wang, Xue Dong, Bin Hu, Xiao-Jing Wang, Qian Wang, Wu-Liang Wang
MicroRNA-429 (miR-429) has been suggested to inhibit epithelial-mesenchymal transition (EMT), mainly due to targeting of ZEB1 and ZEB2, which are repressors of the cell to cell contact protein, E-cadherin. In this study, we indicated that regulation of miR-429 in cervical cancer cells modulates cell migration, elongation, as well as transforming growth factor β (TGF-β)-induced stress fiber formation through regulating the cytoskeleton reorganization which is likely independent of the zinc finger E-box binding homeobox (ZEB)/E-cadherin axis...
May 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27092521/nuclear-translocation-of-crk-adaptor-proteins-by-the-influenza-a-virus-ns1-protein
#15
Leena Ylösmäki, Riku Fagerlund, Inka Kuisma, Ilkka Julkunen, Kalle Saksela
The non-structural protein-1 (NS1) of many influenza A strains, especially those of avian origin, contains an SH3 ligand motif, which binds tightly to the cellular adaptor proteins Crk (Chicken tumor virus number 10 (CT10) regulator of kinase) and Crk-like adapter protein (CrkL). This interaction has been shown to potentiate NS1-induced activation of the phosphatidylinositol 3-kinase (PI3K), but additional effects on the host cell physiology may exist. Here we show that NS1 can induce an efficient translocation of Crk proteins from the cytoplasm into the nucleus, which results in an altered pattern of nuclear protein tyrosine phosphorylation...
April 15, 2016: Viruses
https://www.readbyqxmd.com/read/27078848/crkl-mediates-eml4-alk-signaling-and-is-a-potential-therapeutic-target-for-alk-rearranged-lung-adenocarcinoma
#16
Rong An, Yisong Wang, Donna Voeller, Arjan Gower, In-Kyu Kim, Yu-Wen Zhang, Giuseppe Giaccone
Anaplastic lymphoma kinase (ALK) gene rearrangements are oncogenic drivers in a small subset of patients with non-small-cell lung cancer (NSCLC). The ALK inhibitors are highly effective in NSCLC patients harboring ALK rearrangements; however, most patients acquire resistance to the therapy following an initial response. Mechanisms of acquired resistance are complex. We used LC-MS/MS-based phosphotyrosine-peptide profiling in the EML4-ALK rearranged H3122 and H2228 cells treated with ALK inhibitors, to identify downstream effectors of ALK...
May 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/26991864/delineation-of-a-recognizable-phenotype-for-the-recurrent-lcr22-c-to-d-e-atypical-22q11-2-deletion
#17
Amaya Bengoa-Alonso, Mercè Artigas-López, María Moreno-Igoa, Claudio Cattalli, Blanca Hernández-Charro, Maria Antonia Ramos-Arroyo
The 22q11.2 deletion syndrome is typically caused by haploinsufficiency of a 3 Mb region that extends from LCR22-A until LCR22-D, while the recurrent recombination between any of the LCR22-D to H causes the 22q11.2 distal deletion syndrome. Here, we describe three patients with a de novo atypical ∼1.4 Mb 22q11.2 deletion that involves LCR22-C to a region beyond D (LCR22-C to D/E), encompassing the distal portion of the typical deleted region and the proximal portion of the distal deletion. We also review six previous published patients with the same rearrangement and compare their features with those found in patients with overlapping deletions...
June 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/26936585/downregulation-of-mir%C3%A2-429-and-inhibition-of-cell-migration-and-invasion-in-nasopharyngeal-carcinoma
#18
Fangzheng Wang, Chuner Jiang, Quanquan Sun, Fenqin Yan, Lei Wang, Zhenfu Fu, Tongxin Liu, Fujun Hu
Viral, dietary and genetic factors have been implicated in nasopharyngeal carcinoma (NPC), however, the molecular mechanism underlying its pathogenesis remains to be fully elucidated. MicroRNAs (miRNAs) have been reported to be important in NPC tumorigenesis, with a previous miRNA microarray study showing the downregulation of miRNA (miR)‑429 in NPC cells. However, the possible mechanisms of action of miR‑429 have not been examined. In the present study, the expression profiles of miR‑429 were detected using reverse transcription‑quantitative polymerase chain reaction analysis in CNE‑1 and CNE‑2 cells, which are two generally used NPC cells with different degrees of differentiation...
April 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/26934103/identification-of-interactions-in-the-nmd-complex-using-proximity-dependent-biotinylation-bioid
#19
Christoph Schweingruber, Paolo Soffientini, Marc-David Ruepp, Angela Bachi, Oliver Mühlemann
Proximity-dependent trans-biotinylation by the Escherichia coli biotin ligase BirA mutant R118G (BirA*) allows stringent streptavidin affinity purification of proximal proteins. This so-called BioID method provides an alternative to the widely used co-immunoprecipitation (co-IP) to identify protein-protein interactions. Here, we used BioID, on its own and combined with co-IP, to identify proteins involved in nonsense-mediated mRNA decay (NMD), a post-transcriptional mRNA turnover pathway that targets mRNAs that fail to terminate translation properly...
2016: PloS One
https://www.readbyqxmd.com/read/26913922/contribution-of-genomic-copy-number-variations-in-prenatal-oral-clefts-a-multicenter-cohort-study
#20
Ye Cao, Zhihua Li, Jill A Rosenfeld, Amber N Pursley, Ankita Patel, Jin Huang, Huilin Wang, Min Chen, Xiaofang Sun, Tak Yeung Leung, Sau Wai Cheung, Kwong Wai Choy
PURPOSE: We sought to investigate the utility of chromosomal microarray analysis (CMA) for prenatal diagnosis of oral clefts, as compared with traditional chromosome analysis, for improved prenatal genetic counseling and discovery of a potential correlation between genotype and oral cleft. METHODS: This retrospective analysis encompassed 270 prenatal oral cleft cases with documented detailed ultrasound findings and CMA results from four referral centers. Detection rates for pathogenic copy-number variants (CNVs) were calculated and compared with cases for which chromosome analysis was also performed...
October 2016: Genetics in Medicine: Official Journal of the American College of Medical Genetics
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