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Wu C, Gong Y, Sun A, Zhang Y, Zhang C, Zhang W, Zhao G, Zou Y, Ge J. The human MTHFR rs4846049 polymorphism increases coronary heart disease risk through modifying miRNA binding. Nutr Metab Cardiovasc Dis 2013; 23:693-698. [PMID: 22647417 DOI: 10.1016/j.numecd.2012.02.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/13/2012] [Accepted: 02/29/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIMS Abnormal functioning of 5,10-methylenetetrahydrofolate reductase (MTHFR) enhances the risk for coronary heart disease (CHD). Here, we tested whether a single-nucleotide polymorphism (SNP) located in the 3' untranslated region (UTR) of MTHFR was associated with CHD susceptibility by affecting microRNAs binding. METHODS AND RESULTS We first analyzed in silico the SNPs localized in the 3' UTR of MTHFR for their ability to modify miRNA binding. We observed that rs4846049 (G > T) was a potential candidate SNP to modulate miRNAs:MTHFR mRNA complex, with the greatest changed binding free energy for has-miR-149. Based on luciferase analysis, hsa-miR-149 inhibited the activity of the reporter vector carrying -T allele, but not -G allele. We further conducted a case-control study (654 vs 455) in a Chinese Han population. rs4846049 was significantly associated with increased risk for CHD. In addition, the T allele was associated with decreased levels of HDL-cholesterol and apoA. Finally, we observed a reduced MTHFR protein level in peripheral blood mononuclear cells of CHD patients with TT carriers compared to GG carriers of rs4846049. CONCLUSION Our results suggest that rs4846049 (G > T) of MTHFR is associated with increased risk for CHD. We also identified a potentially pathogenetic mechanism of SNP-modified posttranscriptional gene regulation by miRNAs to MTHFR.
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Affiliation(s)
- C Wu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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202
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He C, Tu H, Sun L, Xu Q, Li P, Gong Y, Dong N, Yuan Y. Helicobacter pylori-related host gene polymorphisms associated with susceptibility of gastric carcinogenesis: a two-stage case-control study in Chinese. Carcinogenesis 2013; 34:1450-1457. [DOI: 10.1093/carcin/bgt079] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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203
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Chan K, Patel RS, Newcombe P, Nelson CP, Qasim A, Epstein SE, Burnett S, Vaccarino VL, Zafari AM, Shah SH, Anderson JL, Carlquist JF, Hartiala J, Allayee H, Hinohara K, Lee BS, Erl A, Ellis KL, Goel A, Schaefer AS, Mokhtari NE, Goldstein BA, Hlatky MA, Go AS, Shen GQ, Gong Y, Pepine C, Laxton RC, Wittaker JC, Tang WHW, Johnson JA, Wang QK, Assimes TL, Nöthlings U, Farrall M, Watkins H, Richards AM, Cameron VA, Muendlein A, Drexel H, Koch W, Park JE, Kimura A, Shen WF, Simpson IA, Hazen SL, Horne BD, Hauser ER, Quyyumi AA, Reilly MP, Samani NJ, Ye S. 126 CHROMOSOME 9P21 LOCUS AND ANGIOGRAPHIC CORONARY ARTERY DISEASE BURDEN: A COLLABORATIVE META-ANALYSIS. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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204
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205
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Wu T, Gong Y. A novel Zn(II) complex based on 1H-1,2,3-benzotriazol-1-ylacetic acid and 1H-1,2,3-benzotriazole ligands: Synthesis, crystal structure, and photoluminescent property. RUSS J COORD CHEM+ 2013. [DOI: 10.1134/s1070328413030123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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206
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Gong Y, Song L, Yang C, Che Y, Chen Q, Wu B. The roles of mesenchymal stem cells in gastric lesion and regeneration: applications in gastric diseases. Acta Gastroenterol Belg 2013; 76:10-14. [PMID: 23650776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In recent years, many studies have focused on the roles of mesenchymal stem cells (MSCs) due to their contribution to tissue regeneration and tumorigenesis. However, the full profile of the roles of MSCs in gastric diseases has not been established. In this review, we aim to provide an overview on the roles of MSCs on cell lesion and regeneration in gastric diseases, including gastric ulcer, premalignant conditions and cancer. We will also discuss the mechanisms underlying the behaviors of MSCs in these diseases.
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Affiliation(s)
- Y Gong
- Gastrointestinal Department of Southern Building, PLA general hospital, Beijing, P.R. China
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Del-Aguila JL, Beitelshees AL, Cooper-Dehoff RM, Chapman AB, Gums JG, Bailey K, Gong Y, Turner ST, Johnson JA, Boerwinkle E. Genome-wide association analyses suggest NELL1 influences adverse metabolic response to HCTZ in African Americans. Pharmacogenomics J 2013; 14:35-40. [PMID: 23400010 PMCID: PMC3812324 DOI: 10.1038/tpj.2013.3] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 12/13/2012] [Accepted: 01/03/2013] [Indexed: 12/02/2022]
Abstract
Hydrochlorothiazide (HCTZ) is one of the most widely prescribed antihypertensive medications. Although it is well known that HCTZ is associated with hyperglycemia and hypertriglyceridemia, the mechanisms underlying these adverse effects are not well understood. We performed a genome-wide association study and meta-analysis of the change in fasting plasma glucose and triglycerides in response to HCTZ from two different clinical trials: the Pharmacogenomic Evaluation of Antihypertensive Responses and the Genetic Epidemiology of Responses to Antihypertensive studies. Two single-nucleotide polymorphisms (rs12279250 and rs4319515 (r2=0.73)), located at 11p15.1 in the NELL1 gene, achieved genome-wide significance for association with change in fasting plasma triglycerides in African Americans, whereby each variant allele was associated with a 28 mg dl−1 increase in the change in triglycerides. NELL1 encodes a cytoplasmic protein that contains epidermal growth factor-like repeats and has been shown to represses adipogenic differentiation. These findings may represent a novel mechanism underlying HCTZ-induced adverse metabolic effects.
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Affiliation(s)
- J L Del-Aguila
- Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - A L Beitelshees
- Division of Endocrinology, Diabetes and Nutrition, University of Maryland, Baltimore, MD, USA
| | - R M Cooper-Dehoff
- Department of Pharmacotherapy and Translational Research and Division of Cardiovascular Medicine, Colleges of Pharmacy and Medicine, University of Florida, Gainesville, FL, USA
| | - A B Chapman
- Renal Division, Emory University School of Medicine, Atlanta, GA, USA
| | - J G Gums
- Department of Pharmacotherapy and Translational Research and Division of Cardiovascular Medicine, Colleges of Pharmacy and Medicine, University of Florida, Gainesville, FL, USA
| | - K Bailey
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Y Gong
- Department of Pharmacotherapy and Translational Research and Division of Cardiovascular Medicine, Colleges of Pharmacy and Medicine, University of Florida, Gainesville, FL, USA
| | - S T Turner
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - J A Johnson
- Department of Pharmacotherapy and Translational Research and Division of Cardiovascular Medicine, Colleges of Pharmacy and Medicine, University of Florida, Gainesville, FL, USA
| | - E Boerwinkle
- 1] Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX, USA [2] Human Genome Sequencing Center at Baylor College of Medicine, Houston, TX, USA
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Gong Y, Ye Y, Zhao Y, Caulloo S, Chen X, Zhang B, Cai Z, Zhang X. Answer to: 'Reply to: Severe diffuse non-scarring hair loss in systemic lupus erythematosus - clinical and histopathological analysis of four cases'. J Eur Acad Dermatol Venereol 2013; 27:1457. [PMID: 23368737 DOI: 10.1111/jdv.12088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 11/29/2012] [Indexed: 12/01/2022]
Affiliation(s)
- Y Gong
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
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Gong Y, Li T, Riordan A, Ronnekleiv-Kelly S, Geiger P, Nukaya M, Harms B, Kennedy G. MicroRNA-21 Expression is Correlated With Lymph Node Positivity in Rectal Cancer. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xie H, Lev D, Gong Y, Wang S, Pollock RE, Wu X, Gu J. Reduced mitochondrial DNA copy number in peripheral blood leukocytes increases the risk of soft tissue sarcoma. Carcinogenesis 2013; 34:1039-43. [DOI: 10.1093/carcin/bgt023] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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211
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Gong Y, Zhang J, Peng F, Li N, Zhou L, Wang J, Xu Y, Zhu J, Huang M, Lu Y. Salvage Concurrent Radio-chemotherapy for Postoperative Local Recurrence of Squamous Cell Esophageal Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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212
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Miao D, Zhang P, Gong Y, Yamaguchi T, Iritani Y, Blackall PJ. The development and application of a blocking ELISA kit for the diagnosis of infectious coryza. Avian Pathol 2012; 29:219-25. [PMID: 19184808 DOI: 10.1080/03079450050045477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
A blocking enzyme-linked immunosorbent assay (B-ELISA) kit for the diagnosis of infectious coryza was developed in this study. The kit was based on a recently described blocking ELISA that uses monoclonal antibodies to achieve specificity for antibodies to either Haemophilus paragallinarum serovar A or serovar C. The results showed that the B-ELISA kit detected 96 and 90%, respectively, of chickens vaccinated or challenged with H. paragallinarum serovar A. When used on chickens vaccinated or challenged with H. paragallinarum serovar C, the kit detected 77 and 40%, respectively, as positive. The majority of sera from vaccinated chickens were still positive on the serovars A and C ELISAs 4 months after vaccination. Based on pen trial data, the serovar A B-ELISA kit had a sensitivity of 95% and a specificity of 100%. The serovar C B-ELISA kit had a sensitivity of 73% and a specificity of 100%. A range of field sera was examined with the kit, generating results that correlated with the known vaccination/disease history of the flocks examined. As freeze drying the monoclonal antibodies and the conjugate had some effect on optimal working concentration, the kit used liquid solutions of these two reagents. The kit could be stored for 7 days at 37 degrees C, 10 months at 4 degrees C and more than 1 yearat -20 degrees C. Our results suggest that the kit would be a useful aid in the diagnosis of infectious coryza in China and other countries where H. paragallinarum serovars A and C are the predominant or sole serovars.
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Chen X, Song C, Gong Y, Blackall PJ. Further studies on the use of a polymerase chain reaction test for the diagnosis of infectious coryza. Avian Pathol 2012; 27:618-24. [PMID: 18484051 DOI: 10.1080/03079459808419393] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Further information is reported on the use of a polymerase chain reaction (PCR) test for the diagnosis of infectious coryza in China. The majority of sinus swabs taken from artificially infected chickens and stored in glycerol-enriched phosphate-buffered saline were still positive by PCR after storage for 180 days at either 4 degrees C or - 20 degrees C. Storage of swabs in either saline or nutrient broth was not as effective. Traditional culture failed to detect H. paragallinarum after storage for 3 days, regardless of storage medium or storage temperature. With dry swabs, the PCR could detect H. paragallinarum after storage for 7 days or longer at either 4 degrees C or - 20 degrees C, while traditional culture could not. In PCR tests on 64 artificially-challenged chickens, all were positive by PCR at the six sampling dates up to 18 days post-challenge. Traditional culture gave a similar result. Both PCR and culture detected 50% or less of chickens as positive at 21 and 24 days post challenge. Antibiotic treatment reduced the ability of both culture and the PCR test to detect H. paragallinarum. The value of the PCR test and its superiority over traditional culture for the diagnosis of infectious coryza has been confirmed in these experiments.
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Affiliation(s)
- X Chen
- Beijing Municipal Academy of Agriculture, Institute for Animal Husbandry and Veterinary Science, Beijing, Beijing 100081, People's Republic of China
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214
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Zhou Q, Liu L, Li L, Che G, Yang J, Zhao Y, Chen J, Wang Y, Qin J, Hou M, Gong Y, Lu W, Li Z. [A randomized clinical trial of preoperative neoadjuvant chemotherapy followed by surgery in the treatment of stage III non-small cell lung cancer]. Zhongguo Fei Ai Za Zhi 2012; 4:251-6. [PMID: 21050573 DOI: 10.3779/j.issn.1009-3419.2001.04.04] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND To explore the feasibility and toxicity of preoperative neoadjuvant chemotherapy followed by surgery in the treatment of stage III NSCLC and to evaluate its effects on tumor response, resection rate, tumor downstaging, and survival rate. METHODS From Jan. 1990 to Jan. 2001, 624 patients were randomly devided into group A ( preoperative neoadjuvant chemotherapy group) and group B ( control group, without neoadjuvant chemotherapy) . Group A had 314 patients and group B had 310 cases. The patients in group A were give 2 cycles of neoadjuvant chemotherapy, and operations were performed in 4 weeks after finishing the last chemotherapy. Twenty-one patients were given bronchial artery intervensional chemotherapy. The other 293 cases were given intravenous chemotherapy. The regimens included MVP in 68 cases, CAP in 36 cases, EP in 67 cases, VIP in 20 cases, Gem+ DDP in 30 cases, NVB+ DDP in 32 cases, Taxol+ NVB in 30 cases, and Taxol+ DDP in 10 cases. The patients in group B were firstly operated. Thoracic radiation therapy of 50-55 Gy was g iven in the patients with N1 and N2 disease both in group A and group B. RESULTS The tumor response to induction chemotherapy was 73. 57%( 231/ 314) in group A. The tumor downstaging was 43. 63%( 137/ 314) . The histological complete response was 15. 92%( 50/ 314) . The resection rate was 97. 69% in group A, and 91. 94% in group B. No significant differences of blood loss, operative complications and mortality were observed between the group A and group B. The 1-, 3-, 5- and 10-year survival rates were 89. 35%, 67. 46% , 34. 39% and 29. 34% in group A, and 87. 53%, 51. 54%, 24. 19% and 21. 64% in group B respectively. The long-term survival rate in group A was remarkably higher than that in group B ( P < 0. 01) . CONCLUSIONS The results demonstrate that the preoperative neoadjuvant chemotherapy is safe and effective. It is helpful to decrease the tumor staging , to increase the resection rate of the tumor, and to improve the long-term survival rate and life qualities of patients with stage III NSCLC.
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Affiliation(s)
- Q Zhou
- Department of Thoracocardiac Surgery , West China Hospital, Sichuan University ( Former The First University Hosp ital of West China University of Medical Sciences ) , Chengdu, Sichuan 610041, P . R . China
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Kijima N, Hosen N, Kagawa N, Hashimoto N, Chiba Y, Kinoshita M, Sugiyama H, Yoshimine T, Kim YZ, Kim KH, Lee EH, Hu B, Sim H, Mohan N, Agudelo-Garcia P, Nuovo G, Cole S, Viapiano MS, McFarland BC, Hong SW, Rajbhandari R, Twitty GB, Kenneth Gray G, Yu H, Langford CP, Yancey Gillespie G, Benveniste EN, Nozell SE, Nitta R, Mitra S, Bui T, Li G, Munoz JL, Rodriguez-Cruz V, Rameshwar P, Rodriguez-Cruz V, Munoz JL, Rameshwar P, See WL, Mukherjee J, Shannon KM, Pieper RO, Floyd DH, Xiao A, Purow BW, Lavon I, Zrihan D, Refael M, Bier A, Canello T, Siegal T, Zrihan D, Granit A, Siegal T, Lavon I, Xie Q, Wang X, Gong Y, Mao Y, Chen X, Zhou L, Lee SX, Tunkyi A, Wong ET, Swanson KD, Zhang K, Chen L, Zhang J, Shi Z, Han L, Pu P, Kang C, Cho WH, Ogawa D, Godlewski J, Bronisz A, Antonio Chiocca E, Mustafa DAM, Sieuwerts AM, Smid M, de Weerd V, Martens JW, Foekens JA, Kros JM, Zhang J, McCulloch C, Graff J, Sui Y, Dinn S, Huang Y, Li Q, Fiona G, Ogawa D, Nakashima H, Godlewski J, Antonio Chiocca E, Leiss L, Manini I, Enger PO, Yang C, Iyer R, Yu ACH, Li S, Ikejiri BL, Zhuang Z, Lonser R, Massoud TF, Paulmurugan R, Gambhir SS, Merrill MJ, Sun M, Chen M, Edwards NA, Shively SB, Lonser RR, Baia GS, Caballero OL, Orr BA, Lal A, Ho JS, Cowdrey C, Tihan T, Mawrin C, Riggins GJ, Lu D, Leo C, Wheeler H, McDonald K, Schulte A, Zapf S, Stoupiec M, Kolbe K, Riethdorf S, Westphal M, Lamszus K, Timmer M, Rohn G, Koch A, Goldbrunner R, Edwards NA, Lonser RR, Merrill MJ, Ruggieri R, Vanan I, Dong Z, Sarkaria JN, Tran NL, Berens ME, Symons M, Rowther FB, Dawson T, Ashton K, Darling J, Warr T, Okamoto M, Palanichamy K, Gordon N, Patel D, Walston S, Krishanan T, Chakravarti A, Kalinina J, Carroll A, Wang L, Yu Q, Mancheno DE, Wu S, Liu F, Ahn J, He M, Mao H, Van Meir EG, Debinski W, Gonzales O, Beauchamp A, Gibo DM, Seals DF, Speranza MC, Frattini V, Kapetis D, Pisati F, Eoli M, Pellegatta S, Finocchiaro G, Maherally Z, Smith JR, Pilkington GJ, Zhu W, Wang Q, Clark PA, Yang SS, Lin SH, Kahle KT, Kuo JS, Sun D, Hossain MB, Cortes-Santiago N, Gururaj A, Thomas J, Gabrusiewicz K, Gumin J, Xipell E, Lang F, Fueyo J, Yung WKA, Gomez-Manzano C, Cook NJ, Lawrence JE, Rovin RA, Belton RJ, Winn RJ, Ferluga S, Debinski W, Lee SH, Khwaja FW, Zerrouqi A, Devi NS, Van Meir EG, Drucker KL, Lee HK, Bier A, Finniss S, Cazacu S, Poisson L, Xiang C, Rempel SA, Mikkelsen T, Brodie C, Chen M, Shen J, Edwards NA, Lonser RR, Merrill MJ, Kenchappa RS, Valadez JG, Cooper MK, Carter BD, Forsyth PA, Lee JS, Erdreich-Epstein A, Song HR, Lawn S, Kenchappa R, Forsyth P, Lim KJ, Bar EE, Eberhart CG, Blough M, Alnajjar M, Chesnelong C, Weiss S, Chan J, Cairncross G, Wykosky J, Cavenee W, Furnari F, Brown KE, Keir ST, Sampson JH, Bigner DD, Kwatra MM, Kotipatruni RP, Thotala DK, Jaboin J, Taylor TE, Wykosky J, Schinzel AC, Hahn WC, Cavenee WK, Furnari FB, Kapoor GS, Macyszyn L, Bi Y, Fetting H, Poptani H, Ittyerah R, Davuluri RV, O'Rourke D, Pitter KL, Hosni-Ahmed A, Colevas K, Holland EC, Jones TS, Malhotra A, Potts C, Fernandez-Lopez A, Kenney AM, Cheng S, Feng H, Hu B, Jarzynka MJ, Li Y, Keezer S, Johns TG, Hamilton RL, Vuori K, Nishikawa R, Sarkaria JN, Fenton T, Cheng T, Furnari FB, Cavenee WK, Mikheev AM, Mikheeva SA, Silber JR, Horner PJ, Rostomily R, Henson ES, Brown M, Eisenstat DD, Gibson SB, Price RL, Song J, Bingmer K, Oglesbee M, Cook C, Kwon CH, Antonio Chiocca E, Nguyen TT, Nakashima H, Chiocca EA, Lukiw WJ, Culicchia F, Jones BM, Zhao Y, Bhattacharjee S. LAB-CELL BIOLOGY AND SIGNALING. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yang FH, Zhang B, Zhou DJ, Bie L, Tom MW, Drummond DC, Nicolaides T, Mueller S, Banerjee A, Park JW, Prados MD, James DC, Gupta N, Hashizume R, Strohbehn GW, Zhou J, Fu M, Patel TR, Piepmeier JM, Saltzman WM, Xie Q, Johnson J, Bradley R, Ascierto ML, Kang L, Koeman J, Marincola FM, Briggs M, Tanner K, Vande Woude GF, Tanaka S, Klofas LK, Wakimoto H, Borger DR, Iafrate AJ, Batchelor TT, Chi AS, Madhankumar AB, Slagle-Webb B, Rizk E, Harbaugh K, Connor JR, Sarkar G, Curran GL, Jenkins RB, Kurozumi K, Ichikawa T, Onishi M, Fujii K, Ishida J, Shimazu Y, Date I, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovich RD, Zhang P, Powers JP, Liu SC, Al Omran R, Sullivan TJ, Jaen JC, Brown M, Schall TJ, Yusuke N, Shimizu S, Shishido-Hara Y, Shiokawa Y, Nagane M, Wang J, Sai K, Chen FR, Chen ZP, Shi Z, Zhang J, Zhang K, Han L, Chen L, Qian X, Zhang A, Wang G, Jia Z, Pu P, Kang C, Kong LY, Doucette TA, Ferguson SD, Hachem J, Yang Y, Wei J, Priebe W, Fuller GN, Qiao W, Rao G, Heimberger AB, Chen PY, Ozawa T, Drummond D, Santos R, Torre JD, Ng C, Lepe EL, Butowski N, Prados M, Bankiewicz K, James CD, Cheng Z, Gong Y, Ma Y, Muller-Knapp S, Knapp S, Wang J, Fujii K, Kurozumi K, Ichikawa T, Onishi M, Shimazu Y, Ishida J, Antonio Chiocca E, Kaur B, Date I, Yu JS, Judkowski V, Bunying A, Ji J, Li Z, Bender J, Pinilla C, Srinivasan V, Dombovy-Johnson M, Carson-Walter E, Walter K, Xu Z, Popp B, Schlesinger D, Gray L, Sheehan J, Keir ST, Friedman HS, Bigner DD, Kut C, Tyler B, McVeigh E, Li X, Herzka D, Grossman S, Lasky JL, Wang Y, Panosyan E, Meisen WH, Hardcastle J, Wojton J, Wohleb E, Alvarez-Breckenridge C, Nowicki M, Godbout J, Kaur B, Lee SY, Slagle-Webb B, Sheehan JM, Connor JR, Yin S, Kaluz S, Devi SN, de Noronha R, Nicolaou KC, Van Meir EG, Lachowicz JE, Demeule M, Che C, Tripathy S, Jarvis S, Currie JC, Regina A, Nguyen T, Castaigne JP, Zielinska-Chomej K, Mohanty C, Viktorsson K, Lewensohn R, Driscoll JJ, Alsidawi S, Warnick RE, Rixe O, deCarvalho AC, Irtenkauf S, Hasselbach L, Xin H, Mikkelsen T, Sherman JH, Siu A, Volotskova O, Keidar M, Gibo DM, Dickinson P, Robertson J, Rossmeisl J, Debinski W, Nair S, Schmittling R, Boczkowski D, Archer G, Bigner DD, Sampson JH, Mitchell DA, Miller IS, Didier S, Murray DW, Issaivanan M, Coniglio SJ, Segall JE, Al-Abed Y, Symons M, Fotovati A, Hu K, Wakimoto H, Triscott J, Bacha J, Brown DM, Dunn SE, Daniels DJ, Peterson TE, Dietz AB, Knutson GJ, Parney IF, Diaz RJ, Golbourn B, Picard D, Smith C, Huang A, Rutka J, Saito N, Fu J, Yao J, Wang S, Koul D, Yung WKA, Fu J, Koul D, Yao J, Wang S, Yuan Y, Sulman EP, Colman H, Lang FF, Yung WKA, Slat EA, Herzog ED, Rubin JB, Brown M, Carminucci AS, Amendolara B, Leung R, Lei L, Canoll P, Bruce JN, Wojton JA, Chu Z, Kwon CH, Chow LM, Palascak M, Franco R, Bourdeau T, Thornton S, Qi X, Kaur B, Kitange GJ, Mladek AC, Su D, Carlson BL, Schroeder MA, Pokorny JL, Bakken KK, Gupta SK, Decker PA, Wu W, Sarkaria JN, Colman H, Oddou MP, Mollard A, Call LT, Vakayalapati H, Warner SL, Sharma S, Bearss DJ, Chen TC, Cho H, Wang W, Hofman FM, Flores CT, Snyder D, Sanchez-Perez L, Pham C, Friedman H, Bigner DD, Sampson JH, Mitchell DA, Woolf E, Abdelwahab MG, Turner G, Preul MC, Lynch A, Rho JM, Scheck AC, Salphati L, Heffron TP, Alicke B, Barck K, Carano RA, Cheong J, Greve J, Lee LB, Nishimura M, Pang J, Plise EG, Reslan HB, Zhang X, GOuld SG, Olivero AG, Phillips HS, Zadeh G, Jalali S, Voce D, Wei Z, Shijun K, Nikolai K, Josh W, Clayton C, Bakhtiar Y, Alkins R, Burgess A, Ganguly M, Wels W, Hynynen K, Li YM, Jun H, Daniel V, Walter HA, Nakashima H, Nguyen TT, Shalkh I, Goins WF, Chiocca EA, Pyko IV, Nakada M, Furuyama N, Lei T, Hayashi Y, Kawakami K, Minamoto T, Fedulau AS, Hamada JI. LAB-EXPERIMENTAL (PRE-CLINICAL) THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2012; 14:vi25-vi37. [PMCID: PMC3488776 DOI: 10.1093/neuonc/nos222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023] Open
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Zhao H, Yang W, Qiu R, Li J, Xin Q, Wang X, Feng Y, Shan S, Liu Y, Gong Y, Liu Q. An intronic variant associated with systemic lupus erythematosus changes the binding affinity of Yinyang1 to downregulate WDFY4. Genes Immun 2012; 13:536-42. [PMID: 22972472 DOI: 10.1038/gene.2012.33] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Two recent genome-wide association studies of East Asian populations revealed three genetic variants in WDFY4/LRRC18 associated with systemic lupus erythematosus (SLE). To identify the gene contributing to this disease susceptibility, we examined the mRNA expression of WDFY4 and LRRC18 in patients with SLE and healthy controls. WDFY4 was significantly downregulated in SLE patients as compared with controls. We used allelic expression and dual-luciferase assays to identify the functional variant. Transcriptional activity was lower for the rs877819A than -G allele. Electrophoretic mobility shift and supershift assays revealed that the transcription factor Yinyang1 (YY1) binds to rs877819, with lower affinity to the A allele, which explained the reduced transcriptional activity. This effect was further confirmed by YY1 small interfering RNA knockdown, overexpression and chromatin immunoprecipitation experiments. rs877819 in WDFY4 might be the functional site associated with SLE by reduced binding of YY1 and downregulating WDFY4 expression.
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Affiliation(s)
- H Zhao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Department of Medical Genetics, Shandong University School of Medicine, Shandong, PRC
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Tu L, Sun L, Gong Y, Liu Y, Zhou L, Zhou X, Xu Y, Wang J, Hou M, Lu Y. Paclitaxel and Cisplatin Combined with Intensity-Modulated Radiotherapy for Upper Esophageal Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33326-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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219
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Gong Y, Bi W, Cao L, Yang Y, Chen J, Yu Y. Association of CD14-260 polymorphisms, red-complex periodontopathogens and gingival crevicular fluid cytokine levels with cyclosporine A-induced gingival overgrowth in renal transplant patients. J Periodontal Res 2012; 48:203-12. [PMID: 22934794 DOI: 10.1111/j.1600-0765.2012.01521.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2012] [Indexed: 12/13/2022]
Abstract
UNLABELLED BACKGROUD AND OBJECTIVE: Genetic factors may influence the colonization of pathogenic bacteria, therefore increasing the risk for the initiation and development of periodontal disease. The present study was carried out to investigate the association of CD14-260 polymorphisms, subgingival microbiota, and gingival crevicular fluid (GCF) cytokine levels with cyclosporine A (CsA)-induced gingival overgrowth (GO) in renal transplant patients. MATERIAL AND METHODS A total of 204 patients were dichotomized into two groups: 124 with GO and 80 without GO. The CD14-260 polymorphisms were measured using an allele-specific PCR method. The levels of periodontal pathogens were determined by real-time PCR of subgingival samples. GCF levels of IL-1β and sCD14 were detected by ELISA. RESULTS The frequency of CD14-260 genotype CT + TT was found to be similar in both groups. Patients with GO presented increased prevalence of Pg, Td, and Tf (red complex) and significantly higher levels of interleukin -1β than those without GO. Patients with GO carrying CT + TT genotypes were found to have higher frequencies of Pg, Td, and Tf than those carrying the CC genotype. Furthermore, in the presence of red complex, CT + TT genotypes were associated with higher interleukin -1β levels and severe GO. Multiple logistic regression analysis demonstrated that the severity of GO is not dependent on age, gender and pharmacological variables, being only associated with CD14-260 genotype and red complex periodontopathogens. CONCLUSION No association between CD14-260 polymorphisms and the prevalence of GO was revealed in renal transplant patients administered CsA. However, CD14-260 CT + TT genotypes are associated with the prevalence of red complex periodontopathogens in patients with GO, and may thus play some role in the development of severe CsA-induced GO.
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Affiliation(s)
- Y Gong
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai, China
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220
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Gong Y, Li J, Li C, Mu Y, Xiao Y, Tian H, Pan C, Liu Y. The Adipose Tissue Endocrine Mechanism of the Prophylactic Protective Effect of Pioglitazone in High-Fat Diet-Induced Insulin Resistance. J Int Med Res 2012; 40:1304-16. [PMID: 22971482 DOI: 10.1177/147323001204000409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE: To explore the adipose tissue endocrine mechanism of pioglitazone and its possible prophylactic role in insulin resistance. METHODS: Male Wistar rats were randomized to receive a normal diet (N group), a high-fat insulin resistance-inducing diet (IR group), or a high-fat diet plus treatment with pioglitazone (P group). Glucose tolerance and insulin resistance were tested at weeks 10 and 11 after starting the diet and, at week 12, adipose, liver and skeletal muscle tissue samples were taken. HepG2 cells were cultured with palmitic acid (PA), pioglitazone and PA plus pioglitazone, and RNA interference was used to downregulate adiponectin receptor (AdipoR) 2 in these cells. The mRNA and protein levels of adipokines (resistin and adiponectin), AdipoR1 and 2 and uptake of [3H]-labelled glucose were measured in the HepG2 cells. RESULTS: Resistin and adiponectin in adipose tissue and AdipoR2 in liver tissue were significantly decreased in the IR group compared with the N group. Adiponectin and AdipoR2 were significantly increased and insulin resistance significantly decreased in the P group versus the IR group. In HepG2 cells, AdipoR2 levels and glucose uptake decreased significantly when PA was ≥ 200 μM, but were elevated by pioglitazone. Small interfering RNA-AdipoR2 confirmed glucose uptake in liver was regulated by AdipoR2. CONCLUSIONS: Pioglitazone prevented insulin resistance in rats fed a high-fat diet. Liver AdipoR2-mediated glucose uptake is important in the prophylactic effect of pioglitazone on insulin resistance.
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Affiliation(s)
- Y Gong
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - J Li
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - C Li
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y Mu
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y Xiao
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - H Tian
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - C Pan
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y Liu
- Department of Endocrinology, The Chinese People's Liberation Army General Hospital, Beijing, China
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Song D, Fang G, Mao SZ, Ye X, Liu G, Gong Y, Liu SF. Chronic intermittent hypoxia induces atherosclerosis by NF-κB-dependent mechanisms. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1650-9. [PMID: 22846605 DOI: 10.1016/j.bbadis.2012.07.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 07/16/2012] [Accepted: 07/23/2012] [Indexed: 02/06/2023]
Abstract
Chronic intermittent hypoxia (CIH) causes atherosclerosis in mice fed a high cholesterol diet (HCD). The mechanisms by which CIH promotes atherosclerosis are incompletely understood. This study defined the mechanistic role of NF-κB pathway in CIH+HCD induced atherosclerosis. Wild type (WT) and mice deficient in the p50 subunit of NF-κB (p50-KO) were fed normal chow diet (ND) or HCD, and exposed to sham or CIH. Atherosclerotic lesions on the en face aortic preparation and cross-sections of aortic root were examined. In WT mice, neither CIH nor HCD exposure alone caused, but CIH+HCD caused evident atherosclerotic lesions on both preparations after 20weeks of exposure. WT mice on ND and exposed to CIH for 35.6weeks did not develop atherosclerotic lesions. P50 gene deletion diminished CIH+HCD induced NF-κB activation and abolished CIH+HCD induced atherosclerosis. P50 gene deletion inhibited vascular wall inflammation, reduced hepatic TNF-α level, attenuated the elevation in serum cholesterol level and diminished macrophage foam cell formation induced by CIH+HCD exposure. These results demonstrate that inhibition of NF-κB activation abrogates the activation of three major atherogenic mechanisms associated with an abolition of CIH+HCD induced atherosclerosis. NF-κB may be a central common pathway through which CIH+HCD exposure activates multiple atherogenic mechanisms, leading to atherosclerosis.
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Affiliation(s)
- D Song
- Centers for Heart and Lung Research and Pulmonary, Critical Care and Sleep Medicine, the Feinstein Institute for Medical Research, Manhasset, NY, USA
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222
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Chow F, Tsai R, Lippa C, Gong Y. Peptidyl-Prolyl Isomerase Pin1: A Common Therapeutic Target for Synaptic Dysfunction and Protein Misfolding in Alzheimer's Disease (SC02.008). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.sc02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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223
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Chow F, Tsai R, Lippa C, Gong Y. Peptidyl-Prolyl Isomerase Pin1: A Common Therapeutic Target for Synaptic Dysfunction and Protein Misfolding in Alzheimer's Disease (P05.048). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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224
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Kawamori R, Inagaki N, Araki E, Watada H, Hayashi N, Horie Y, Sarashina A, Gong Y, von Eynatten M, Woerle HJ, Dugi KA. Linagliptin monotherapy provides superior glycaemic control versus placebo or voglibose with comparable safety in Japanese patients with type 2 diabetes: a randomized, placebo and active comparator-controlled, double-blind study. Diabetes Obes Metab 2012; 14:348-57. [PMID: 22145698 DOI: 10.1111/j.1463-1326.2011.01545.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
AIMS To evaluate the efficacy and safety of linagliptin 5 and 10 mg vs. placebo and voglibose in Japanese patients with type 2 diabetes mellitus (T2DM). METHODS This study enrolled patients with inadequately controlled T2DM who were previously treated with one or two oral antidiabetics or were drug naÏve. After a 2 to 4-week washout and placebo run-in, 561 patients were randomized (2 : 2 : 2 : 1) to double-blind treatment with linagliptin 5 or 10 mg qd, voglibose 0.2 mg tid or placebo. The primary endpoint was the change from baseline in haemoglobin A1c (HbA1c) with linagliptin vs. placebo after 12 weeks and vs. voglibose after 26 weeks. RESULTS Baseline characteristics were well balanced across treatment groups (overall mean HbA1c was 8.01%). The adjusted mean (95% confidence interval) treatment differences at week 12 were -0.87% (-1.04, -0.70; p < 0.0001) and -0.88% (-1.05, -0.71; p < 0.0001) for linagliptin 5 and 10 mg vs. placebo and at week 26 were -0.32% (-0.49, -0.15; p = 0.0003) and -0.39% (-0.56, -0.21; p < 0.0001) for linagliptin 5 and 10 mg vs. voglibose. At week 12, mean HbA1c was 7.58, 7.48 and 8.34% in patients receiving linagliptin 5 mg, linagliptin 10 mg and placebo, respectively. At week 26, mean HbA1c was 7.63% with linagliptin 5 mg, 7.50% with linagliptin 10 mg and 7.91% with voglibose. Drug-related adverse event rates were comparable across treatment groups over 12 weeks (9.4% linagliptin 5 mg, 8.8% linagliptin 10 mg and 10.0% placebo) and 26 weeks (11.3% linagliptin 5 mg, 10.6% linagliptin 10 mg and 18.5% voglibose). There were no documented cases of hypoglycaemia. CONCLUSIONS Linagliptin showed superior glucose-lowering efficacy and comparable safety and tolerability to both placebo and voglibose in Japanese patients with T2DM.
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Affiliation(s)
- R Kawamori
- Sportology Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
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225
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Chen QL, Luo Z, Zheng JL, Li XD, Liu CX, Zhao YH, Gong Y. Protective effects of calcium on copper toxicity in Pelteobagrus fulvidraco: copper accumulation, enzymatic activities, histology. Ecotoxicol Environ Saf 2012; 76:126-134. [PMID: 22019308 DOI: 10.1016/j.ecoenv.2011.10.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 10/03/2011] [Accepted: 10/06/2011] [Indexed: 05/31/2023]
Abstract
The present study was conducted to determine interactive effects of waterborne co-exposure of copper (Cu) and calcium (Ca) on Cu accumulation, enzymatic activities and histology in yellow catfish Pelteobagrus fulvidraco and test the prediction that Ca could protect against Cu--induced toxicity in the fish species. Yellow catfish were exposed to 0, 1.0, 2.0 mg Cu/l, in combination with 0 and 50 mg Ca/l. Waterborne Cu and Ca co-exposure influenced the majority of tested enzymatic activities (succinate dehydrogenase, malic dehydrogenase, lactate dehydrogenase, lipoprotein lipase and hepatic lipase), and changed Cu contents in several organs (gill, liver, kidney, gastrointestine and muscle). For histological observations, at the same Ca level, waterborne Cu exposure induced injuries in gills and liver. However, Ca addition seemed to mitigate the severity of Cu--induced injuries. Thus, our study demonstrated that Ca had the capacity to reduce Cu toxicity in P. fulvidraco.
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Affiliation(s)
- Q-L Chen
- Fishery College, Huazhong Agricultural University, Wuhan 430070, China
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226
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Gong P, Yang Y, Lei W, Feng Y, Li S, Peng X, Gong Y. SMARCE1Promotes Chicken EmbryonicGonad Development by RegulatingERa andARExpression. Sex Dev 2012; 6:178-87. [DOI: 10.1159/000338471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2012] [Indexed: 11/19/2022] Open
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227
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Gong Y, Ye Y, Zhao Y, Caulloo S, Chen X, Zhang B, Cai Z, Zhang X. Severe diffuse non-scarring hair loss in systemic lupus erythematosus - clinical and histopathological analysis of four cases. J Eur Acad Dermatol Venereol 2011; 27:651-4. [PMID: 22176340 DOI: 10.1111/j.1468-3083.2011.04388.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although diffuse non-scarring hair loss been found common in systemic lupus erythematosus (SLE), study that conduted on the severe type has been scarce. OBJECTIVE This study aims to explore the dermoscopic and pathological features of severe diffuse hair loss in SLE. METHOD Data including clinico-laboratory, dermoscopic and histopathological findings of four patients with SLE with severe diffuse hair loss were analysed retrospectively. RESULTS All four patients were women aged 41, 39, 14 and 48 with complaints of hair loss involving 55%, 100%, 60% and 55% of their scalp respectively. Common clinical findings observed in the patients were sparse scalp hair with clusters of newly regrown hair. Scalp dermoscopy showed scaling, perifollicular telangiectasia, increased numbers of short vellus hairs, focal atrichia and decreased hair shaft pigmentation. Scalp tissue histopathology revealed typical changes of SLE such as epidermal atrophy with focal liquefaction, degeneration of the basement membrane zone, pigment incontinence, mild focal perivascular and perifollicular lymphocytic infiltrates and deposition of immunoglobulins at the dermal-epidermal junction. Treatment and improvement in SLE disease activity indices had a favourable impact on hair regrowth. CONCLUSION The severe type of hair loss in patient with SLE presents a unique set of clinical, dermoscopic and histopathological features.
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Affiliation(s)
- Y Gong
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong, China
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228
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Wang X, Saso H, Iwamoto T, Pusztai L, Gong Y, Woodward WA, Reuben JM, Hortobagyi GN, Ueno NT. P2-02-01: A Novel Inflammatory Breast Cancer-Specific Oncogene, Tazarotene-Induced Gene 1, Promotes Tumorigenicity and Invasiveness through the Receptor Tyrosine Kinase Axl. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p2-02-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Inflammatory breast cancer (IBC) is the most lethal and aggressive form of breast cancer and is highly metastatic. The prognosis of patients with IBC is poor, and effective standard therapies for IBC are limited because the molecular mechanisms underlying the pathogenesis of IBC remain unknown. We recently found that tazarotene-induced gene 1 (TIG1) expression is significantly higher in IBC cell lines than in non-IBC cell lines. In both IBC and non-IBC data sets, estrogen receptor-negative/HER2−negative samples had significantly higher expression of TIG1 than did other clinical subtypes (estrogen receptor-positive/HER2−negative and HER2−positive). Therefore, we hypothesized that TIG1 plays an important role in the malignant process of IBC. In these studies, we determined the biological function of TIG1 in IBC cells and elucidated the molecular mechanism by which TIG1 regulates the invasiveness of IBC cells.
Methods: TIG1 expression in SUM149 and KPL-4 IBC cells was stably knocked down, and the effects of this knockdown on in vitro cell proliferation, migration, and invasion were analyzed. The effects of restoring TIG1 expression on TIG1-silencing IBC cells were also examined. To determine the tumorigenic activity of TIG1 in vivo, TIG1 stable-knockdown SUM149 cells and control shRNA-transfected cells were implanted into the mammary fat pads of athymic nude mice, and tumor growth was monitored. The receptor tyrosine kinase Axl, a potential functional partner of TIG1, was identified using DNA microarray analysis. The interaction between TIG1 and Axl in IBC cells was examined using immunoprecipitation and confocal microscopy assays. The signaling pathway in IBC cells in which TIG1 participates was also investigated.
Results: Knockdown of TIG1 expression in IBC cells reduced their proliferation, migration, and invasion in vitro. Also, silencing of TIG1 dramatically inhibited IBC tumor growth in a xenograft model. Moreover, restoring TIG1 expression rescued the proliferation, motility, and invasiveness of TIG1-silenced IBC cells. Most importantly, we identified Axl as a functional partner of TIG1 by showing that TIG1 interacted with and stabilized Axl in IBC cells. TIG1 regulated the invasiveness of IBC cells through mediation of the Axl signaling pathway. In SUM149 cells, TIG1 depletion decreased Axl expression, which led to downregulation of expression of matrix metalloproteinase-9, a molecule required for Axl-mediated invasion, and inactivation of nuclear factor-kB, ultimately leading to decreased invasiveness of IBC cells.
Conclusion: Our results identified TIG1 as an oncogenic gene that contributes to the tumorigenic and metastatic properties of IBC. Our data also linked TIG1 with the key tumorigenic gene Axl in IBC cells. Further studies designed to establish TIG1 as a therapeutic target in the treatment of patients with IBC are under way.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P2-02-01.
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Affiliation(s)
- X Wang
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Saso
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Iwamoto
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - L Pusztai
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - Y Gong
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - WA Woodward
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - JM Reuben
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - GN Hortobagyi
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
| | - NT Ueno
- 1Morgan Welch Inflammatory Breast Cancer Clinic; The University of Texas MD Anderson Cancer Center, Houston, TX; University of Texas MD Anderson Cancer Center, Houston, TX
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Zheng B, Zhou R, Gong Y, Yang X, Shan Q. Proteasome inhibitor bortezomib overcomes P-gp-mediated multidrug resistance in resistant leukemic cell lines. Int J Lab Hematol 2011; 34:237-47. [PMID: 22145750 DOI: 10.1111/j.1751-553x.2011.01384.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION To study the effect of bortezomib alone or in combination with daunorubicin (DNR) on an mdr1 single-factor drug-resistant leukemia cell line K562/MDR1, a multifactor-resistant cell line K562/A02, a drug-sensitive cell line K562, and primary cells from acute myeloid leukemia patients. METHODS The cell lines were exposed to bortezomib, DNR, and bortezomib plus DNR, and cell proliferation, cell cycle, apoptosis rate, and expression of MDR1/BCL2 were analyzed. RESULTS Bortezomib potently inhibited growth and increased the apoptosis rate in the cell lines. In K562/MDR1 and K562/A02, the calcium channel blocker verapamil reduced the 50% inhibitory concentration and apoptosis rate of DNR, a P-gp protein substrate, but not of bortezomib. Bortezomib plus DNR had synergistic effect on antiproliferation (synergistic ratio > 1). Apoptosis was substantially more increased by the combination of two drugs than by bortezomib alone. Bortezomib arrested the cell cycles of three cell lines at the G2/M stage, decreased BCL2 mRNA expression, but did not affect MDR1 mRNA levels. The antiproliferative role of bortezomib was also confirmed in primary leukemia cells. CONCLUSION Bortezomib is a promising potential therapy for acute leukemia, especially mdr1 drug-resistant leukemia.
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Affiliation(s)
- B Zheng
- Department of Hematology and State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
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230
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Zheng JL, Luo Z, Chen QL, Liu X, Liu CX, Zhao YH, Gong Y. Effect of waterborne zinc exposure on metal accumulation, enzymatic activities and histology of Synechogobius hasta. Ecotoxicol Environ Saf 2011; 74:1864-1873. [PMID: 21764133 DOI: 10.1016/j.ecoenv.2011.06.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Revised: 06/18/2011] [Accepted: 06/26/2011] [Indexed: 05/31/2023]
Abstract
The present study was conducted to determine the metal accumulation, antioxidant enzymatic response, hepatic intermediary metabolism and histological changes in Synechogobius hasta exposed to 0.35 (control), 9.7 and 19.2mg/L Zn, respectively, on the 0, 4th, 8th and 12th day. Waterborne Zn exposure significantly reduced hepatosomatic index, hepatic lipid contents and fatty liver occurrence rate, increased Zn, Fe and Mn contents and reduced the contents of Cu and Ca in liver, and increased muscle Zn content. Waterborne Zn exposure also significantly influenced enzymatic activities involved in antioxidant responses (superoxide dismutase, catalase, glutathione-S-transferase, malondialdehyde) in liver and spleen, and changed hepatic intermediary enzymatic activities (succinate dehydrogenase, malic dehydrogenase, lactate dehydrogenase, lipoprotein lipase, hepatic lipase), impaired the histological structure of the gill and spleen, and reduced vacuolated hepatocytes. Thus, our study demonstrated for the first time that waterborne Zn exposure could reduce fatty liver syndrome in S. hasta.
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Affiliation(s)
- J-L Zheng
- Fishery College, Huazhong Agricultural University, Wuhan 430070, China
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231
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Xiao C, Gong Y, Han E, Gonzalez-Angulo A, Sneige N. Stability of HER2-positive status in breast carcinoma: a comparison between primary and paired metastatic tumors with regard to the possible impact of intervening trastuzumab treatment. Ann Oncol 2011; 22:1547-1553. [DOI: 10.1093/annonc/mdq623] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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232
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Zhang X, Ren L, Gong Y, Huang M, Zhou L, Zhu J, Ding Z, Hou M, Lu Y. Monitoring of the estimated glomerular filtration rate (eGFR) in patients with small cell lung cancer during chemotherapy: Equations based on serum creatinine or cystatin C? J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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233
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Bao P, Wu C, Gu K, Wang C, Huang Z, Peng P, Gong Y, Xiang Y, Dong W, Lu W, Zheng Y. Mortality trends in female breast cancer from 1973 to 2007 in urban Shanghai. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e12015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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234
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Niikura N, Liu J, Hayashi N, Mittendorf EA, Gong Y, Palla SL, Tokuda Y, Gonzalez-Angulo AM, Hortobagyi GN, Ueno NT. Clinical significance of metastatic-tumor HER2 status in patients with HER2-positive primary breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Wu C, Bao P, Zheng Y, Gu K, Wang C, Huang Z, Peng P, Gong Y, Xiang Y, Dong W, Lu W. Survival in gastric cancer: A population-based cancer registry among residents in Shanghai, China. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e12014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Wang C, Liang Z, Liang Z, Yu W, Yu W, Feng Y, Feng Y, Peng X, Peng X, Gong Y, Gong Y, Li S, Li S. Polymorphism of the prolactin gene and its association with egg production traits in native Chinese ducks. S AFR J ANIM SCI 2011. [DOI: 10.4314/sajas.v41i1.66044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li Z, Xu L, Peng C, Kuang H, Xu C, Wang L, Xue F, Ding T, Sheng C, Gong Y. Simultaneous Determination of Nine Types of Phthalate Residues in Commercial Milk Products Using HPLC-ESI-MS-MS. J Chromatogr Sci 2011; 49:338-43. [DOI: 10.1093/chrsci/49.4.337] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Inhomogeneities in two CuZr-based bulk metallic glasses (BMGs) were studied by using synchrotron radiation x-ray scattering techniques. (Cu(4.5/5.5)Ag(1/5.5))(46)Zr(46)Al(8) BMG was found to be more inhomogeneous than Cu(46)Zr(46)Al(8) BMG on the small length scale, where Cu and Ag atoms form enriched zones. Such heterogeneities are locally favorable for forming close-packed icosahedron-like clusters in three-dimensional space, greatly promoting the glass forming ability of this alloy. Upon annealing near the T(g) temperature, the heterogeneities were reduced initially at low temperature and short time annealing, then regenerated again for temperature increase and time extension. The average environment around Zr atoms almost does not change. However, the heterogeneity increases for Cu, Zr and Ag atoms once nanocrystallization happens.
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Affiliation(s)
- X D Wang
- International Center for New-Structured Materials (ICNSM), Zhejiang University, People's Republic of China.
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Gong Y, Zhou L, Shi X, Ma Z, Guo Z, Wang M, Wang J, Li X. Chemical Composition of the Fruit Essential Oil of Phellodendron chinense(Rutaceae) from China and Its Antifungal Activity against Plant Pathogenic Fungi. Journal of Essential Oil Research 2011. [DOI: 10.1080/10412905.2011.9700436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Symmans WF, Hatzis C, Valero V, Booser DJ, Esserman L, Martin M, Vidaurre T, Holmes F, Souchon EA, Lluch A, Cotrina J, Gomez H, Hubbard R, Ferrer-Lozano J, Dyer R, Buxton M, Gong Y, Wu Y, Ibrahim N, Andreopoulou E, Ueno NT, Hunt K, Yang W, Nazario A, DeMichele A, O'Shaughnessy J, Hortobagyi GN, Pusztai L. M. Abstract PD07-03: A Genomic Predictor of Survival Following Taxane-Anthracycline Chemotherapy for Breast Cancer. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-pd07-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: There is currently no predictive assay for patients with clinical Stage II-III breast cancer from which predicted sensitivity to treatment is associated with high probability of survival following chemotherapy.
Patients & Methods: We performed Affymetrix gene expression microarrays of prospectively collected tumor biopsies from 508 patients with newly diagnosed HER2-normal invasive breast cancer prior to neoadjuvant taxane-anthracycline chemotherapy followed by adjuvant endocrine therapy (if hormone receptor-positive). The predictor was developed from 310 samples (from MDACC & I-SPY) by combining: 1) a signature to predict sensitivity to endocrine therapy (SET); 2) estrogen receptor (ER)-stratified predictive signatures of resistance to chemotherapy, defined as extensive residual cancer burden (RCB-III) or relapse within 3 years; and 3) ER-stratified predictive signatures of response to chemotherapy, defined as pathologic complete response (pCR) or minimal RCB (RCB-I). The predictor classified tumors as treatment sensitive if high or intermediate SET, or if predicted to be responsive (and not resistant) to chemotherapy. Otherwise, tumors were classified as treatment insensitive. The predictor was then tested on an independent cohort (N= 198, 98% with clinical Stage II-III) who received neoadjuvant (N= 180) or adjuvant (N= 18) taxane-anthracycline chemotherapy (from MDACC, USO, GEICAM, Peru, LBJ). Distant relapse-free survival (DRFS) was evaluated at a 3-year median follow up using negative predictive value (NPV, absence of event if predicted to be sensitive), and absolute risk reduction (ARR) for those predicted to be sensitive (versus insensitive), with 95% confidence interval (CI). The independent predictive value was assessed in multivariate Cox regression analysis based on the likelihood ratio test (P≥0.05). Results: Patients in the independent validation cohort who were predicted to be treatment sensitive (28%) had excellent DRFS, with NPV 92% (CI 85-100) and significant absolute risk reduction (ARR 18%, CI 6-28) at 3 years, compared to those predicted to be insensitive. This was similar to the DRFS observed in patients who achieved pCR after they completed neoadjuvant chemotherapy (NPV 93%, CI 85-100). Predictions were accurate in each phenotypic subset: ER+/HER2- (30% predicted sensitive, NPV 97%, CI 91-100; ARR 11%, CI 0.1-21) and ER-/HER2- (26% predicted sensitive, NPV 83%, CI 68-100; ARR 26%, CI 4-28). Predicted treatment sensitivity (HR 0.20, CI 0.07-0.57), ER+ status (HR 0.32, CI 0.17-0.63), clinical tumor stage T3-4 (HR 2.04, CI 1.07-3.88) and age >50 (HR 0.50, CI 0.25-0.98) were significant in a multivariate model that also included clinical nodal status, grade, and type of taxane used.
Conclusion: We report validation results for the first molecular predictor of sensitivity to neoadjuvant/adjuvant systemic therapy for clinical Stage II-III breast cancer that is independently associated with excellent DRFS in those predicted to be sensitive. Predictions were accurate for both ER+/HER2- and ER-/HER2- invasive breast cancer.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr PD07-03.
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Affiliation(s)
- WF Symmans
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - C Hatzis
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - V Valero
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - DJ Booser
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - L Esserman
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - M Martin
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - T Vidaurre
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - F Holmes
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - EA Souchon
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - A Lluch
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - J Cotrina
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - H Gomez
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - R Hubbard
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - J Ferrer-Lozano
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - R Dyer
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - M Buxton
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - Y Gong
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - Y Wu
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - N Ibrahim
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - E Andreopoulou
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - NT Ueno
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - K Hunt
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - W Yang
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - A Nazario
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - A DeMichele
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - J O'Shaughnessy
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - GN Hortobagyi
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
| | - M.D. Pusztai L.
- Anderson Cancer Center; Nuvera Biosciences, Inc.; I-SPY Clinical Trial Investigators; GEICAM Investigators, Spain; Instituto Nacional de Enfermedades Neoplacicas, Lima, Peru; US Oncology; Lyndon B. Johnson Hospital, Houston; US Oncology/Baylor Sammmons Cancer Center, Dallas
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Wei Y, Gong K, Zheng Z, Liu L, Wang A, Zhang L, Ao Q, Gong Y, Zhang X. Schwann-like cell differentiation of rat adipose-derived stem cells by indirect co-culture with Schwann cells in vitro. Cell Prolif 2010; 43:606-16. [PMID: 21039999 DOI: 10.1111/j.1365-2184.2010.00710.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Schwann cell (SC) transplantation is a promising therapy for peripheral nerve transaction, however, clinical use of SCs is limited due to their very limited availability. Adipose-derived stem cells (ADSCs) have been identified as an alternative source of adult stem cells in recent years. The aim of this study was to evaluate the feasibility of using ADSCs as a source of stem cells for differentiation into Schwann-like cells by an indirect co-culture approach, in vitro. MATERIALS AND METHODS Multilineage differentiation potential of the obtained ADSCs was assayed by testing their ability to differentiate into osteoblasts and adipocytes. The ADSCs were co-cultured with SCs to be induced into Schwann-like cells through proximity, using a Millicell system. Expression of typical SC markers S-100, GFAP and P75NTR of the treated ADSCs was determined by immunocytochemical staining, western blotting and RT-PCR. Myelination capacity of the differentiated ADSCs (dADSCs) was evaluated in dADSC/dorsal root ganglia neuron (DRGN) co-cultures. RESULTS The treated ADSCs adopted a spindle shaped-like morphology after co-cultured with SCs for 6 days. All results of immunocytochemical staining, western blotting and RT-PCR showed that the treated cells expressed S-100, GFAP and P75NTR, indications of differentiation. dADSCs could form Schwann-like cell myelin in co-culture with DRGNs. Undifferentiated ADSCs (uADSCs) did not form myelin compared to DRGNs cultured alone, but could produce neurite extension. CONCLUSIONS These results demonstrate that this indirect co-culture microenvironment could induce ADSCs to differentiate into Schwann-like cells in vitro, which may be beneficial for treatment of peripheral nerve injuries in the near future.
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Affiliation(s)
- Y Wei
- School of Life Sciences, State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing, China
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Zhou L, Liu J, Gong Y, Liu R, Zou B, Bai S, Xiao J, Li T, Huang M, Lu Y. Efficacy and Toxicity of Whole Brain Radiotherapy plus Simultaneous Image Guided Intensity Modulation Radiotherapy Boost for Brain Metastases of NSCLC. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Xing H, Liu T, Meng W, Gong Y. An investigation of reversal of imatinib resistance in the Bcr-Abl positive imatinib-resistant cell line K562r by dasatinib, nilotinib, rapamycin and bortezomib. Int J Lab Hematol 2010; 33:176-81. [PMID: 20942869 DOI: 10.1111/j.1751-553x.2010.01267.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION We investigated the second-generation tyrosine kinase inhibitors, dasatinib and nilotinib, for their potential to overcome resistance in the imatinib-resistant K562 cell line, and evaluated whether rapamycin, an mammalian target of rapamycin (mTOR) inhibitor, and bortezomib, a proteasome inhibitor, could increase imatinib sensitivity in resistant cell lines. METHODS Cell lines, including K562 (chronic myeloid leukaemia in blast crisis) and K562r (imatinib-resistant K562), were exposed to dasatinib, nilotinib, rapamycin, bortezomib, and rapamycin plus imatinib. Cell proliferation was measured by 3-[4, 5-dimethylthia-zol-2-yl]-2, 5-diphenyl tetrazolium bromide (MTT) assay and mTOR signaling pathways were assessed by Western blotting. RESULTS Dasatinib, nilotinib, and bortezomib inhibited proliferation of K562 and K562r cell lines at nm concentrations. Resistance of K562r due to duplication of autophosphorylation of wild-type Bcr-Abl was not overcome by dasatinib and nilotinib, but was sensitive to bortezomib. Rapamycin partially inhibited proliferation of K562 and K562r cell lines. Rapamycin plus imatinib did not have a more inhibitory effect on the proliferation of K562 and K562r cell lines. CONCLUSION K562r due to duplication of autophosphorylation of wild-type Bcr-Abl induced by imatinib was still partially resistant to dasatinib and nilotinib, but this was overcome by incremental dosing. Rapamycin did not enhance imatinib sensitivity. The blockade of the ubiquitin-proteasome pathway could be effective in overcoming resistance in the K562r imatinib-resistant cell line.
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Affiliation(s)
- H Xing
- Department of Haematology, West China Hospital of Sichuan University, Chengdu, China
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244
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Bakalova S, Gong Y, Cobet C, Esser N, Zhang Y, Edgar JH, Zhang Y, Dudley M, Kuball M. Electronic excitations in B12As2 and their temperature dependence by vacuum ultraviolet ellipsometry. J Phys Condens Matter 2010; 22:395801. [PMID: 21403232 DOI: 10.1088/0953-8984/22/39/395801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The dielectric response function of epitaxial B(12)As(2) films on 4H-SiC was determined at room temperature and at 10 K in the spectral region of 3.6-9.8 eV, i.e., in the vacuum ultraviolet (VUV) spectral region, by synchrotron ellipsometry. The experimental dielectric function was simulated with the critical point parabolic band model. The parameters of the dispersive structures were derived by numerical fitting of the experimental data to the proposed model. New high energy optical transitions are resolved at 5.95, 7.8 and 8.82 eV and their lineshape and origin are discussed. The temperature dependence of the critical point energies and transition strengths was determined, and the excitonic effect is considered.
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Affiliation(s)
- S Bakalova
- H H Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK.
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Zeng QS, Fang YZ, Lou HB, Gong Y, Wang XD, Yang K, Li AG, Yan S, Lathe C, Wu FM, Yu XH, Jiang JZ. Low-density to high-density transition in Ce75Al23Si2 metallic glass. J Phys Condens Matter 2010; 22:375404. [PMID: 21403196 DOI: 10.1088/0953-8984/22/37/375404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Using in situ high-pressure x-ray diffraction (XRD), we observed a pressure-induced polyamorphic transition from the low-density amorphous (LDA) state to the high-density amorphous (HDA) state in Ce(75)Al(23)Si(2) metallic glass at about 2 GPa and 300 K. The thermal stabilities of both LDA and HDA metallic glasses were further investigated using in situ high-temperature and high-pressure XRD, which revealed different pressure dependences of the onset crystallization temperature (T(x)) between them with a turning point at about 2 GPa. Compared with Ce(75)Al(25) metallic glass, minor Si doping shifts the onset polyamorphic transition pressure from 1.5 to 2 GPa and obviously stabilizes both LDA and HDA metallic glasses with higher T(x) and changes their slopes dT(x)/dP. The results obtained in this work reveal another polyamorphous metallic glass system by minor alloying (e.g. Si), which could modify the transition pressure and also properties of LDA and HDA metallic glasses. The minor alloying effect reported here is valuable for the development of more polyamorphous metallic glasses, even multicomponent bulk metallic glasses with modified properties, which will trigger more investigations in this field and improve our understanding of polyamorphism and metallic glasses.
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Affiliation(s)
- Q S Zeng
- International Center for New-Structured Materials, Zhejiang University, Hangzhou, People's Republic of China.
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Zhang X, Gong Y, Wu F, Deng N, Pozdnyakov IP, Glebov EM, Grivin VP, Plyusnin VF, Bazhinb NM. Photochemistry of the iron(III) complex with pyruvic acid in aqueous solutions. Russ Chem Bull 2010. [DOI: 10.1007/s11172-009-0249-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao B, Abdelmoudjib G, Li J, Li H, Wei C, Gong Y, Liu Q. Two polymorphisms in the TIM-4 gene are associated with asthma in a Chinese Han population. Int J Immunogenet 2010; 38:31-5. [PMID: 20727045 DOI: 10.1111/j.1744-313x.2010.00965.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The gene family of the T cell immunoglobulin and mucin domain (TIM) proteins encodes cell surface receptors that are involved in the regulation of Th1- and Th2-cell-mediated immunity. TIM-1 gene has been found to be associated with asthma in several populations. TIM-4, the natural ligand for TIM-1, may influence the susceptility to asthma.To investigate the association of the TIM-4 gene polymorphisms with asthma in a Chinese Han population. Three single nucleotide polymorphisms (SNPs) in TIM-4 gene, rs6882076, rs12658558 and rs4702747, were genotyped in 551 unrelated asthma patients and 549 healthy controls. We found that two SNPs of the TIM-4 gene, rs6882076 and rs4702747, were associated with asthma susceptibility in our study population (with P-values = 0.009 and 0.005 respectively). No association was observed between asthma and rs12658558. Our results suggest that TIM-4 gene polymorphisms are associated with asthma in a Chinese Han population.
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Affiliation(s)
- B Zhao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Department of Medical Genetics, Shandong University School of Medicine, Jinan, Shandong, China
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Xu Z, Jin C, Wang Z, Deng H, Shen D, Zhang M, Li M, Wang J, Zheng Z, Gong Y. A prospective, randomized, controlled, multicenter trial of Chinese herbs by stages combined with chemotherapy for advanced non-small cell lung cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e18000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gong Y, Cabodi M, Porter T. Relationship between size and frequency dependent attenuation of monodisperse populations of lipid coated microbubbles. ACTA ACUST UNITED AC 2010. [DOI: 10.1179/1758897910y.0000000002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Gong Y, Yi M, Fediuk J, Lizotte PP, Dakshinamurti S. Hypoxic neonatal pulmonary arterial myocytes are sensitized to ROS-generated 8-isoprostane. Free Radic Biol Med 2010; 48:882-94. [PMID: 20079425 DOI: 10.1016/j.freeradbiomed.2010.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Revised: 12/11/2009] [Accepted: 01/05/2010] [Indexed: 10/20/2022]
Abstract
8-Isoprostane, a ROS-derived prostanoid that acts via the thromboxane receptor (TP), is implicated in neonatal pulmonary hypertension. The purpose of this study was to examine the effect of hypoxia on vascular smooth muscle ROS generation, 8-isoprostane activity, and TP binding. First-passage neonatal porcine pulmonary artery myocytes were exposed to 10% O(2) (hypoxic myocytes; HM) or 21% O(2) (normoxic myocytes) for 72 h. Hypoxia increased in vitro generation of ROS, superoxide, and 8-isoprostane. ROS generation was ablated by inhibition of mitochondrial complex III. SOD1 and 3 activities were increased, but SOD2 activity decreased by 45% in HM. 8-Isoprostane generation was driven by the addition of peroxide and nitric oxide; incubation with permeative PEG-SOD, but not PEG-catalase or impermeative SOD, attenuated hypoxia-induced 8-isoprostane generation. 8-Isoprostane affinity for TP was markedly increased in HM. Myocyte 8-isoprostane challenge caused TP internalization and calcium release only in HM; this was sensitive to TP blockade and was normalized by activation of adenylyl cyclase. We propose that hypoxia induces superoxide accumulation in pulmonary artery myocytes through inhibition of mitochondrial SOD2 activity, promoting peroxynitrite-induced generation of 8-isoprostane. 8-Isoprostane binds to sensitized TP receptors, causing receptor internalization and signaling to calcium release in hypoxic myocytes. 8-Isoprostane may be an important pulmonary vasoconstrictor during neonatal hypoxia.
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Affiliation(s)
- Y Gong
- Manitoba Institute of Child Health, University of Manitoba, Winnipeg, MAN, Canada
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