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Wang WN, Liu XT, Liang YM. [Cytopathological characteristics of SMARCA4-deficient thoracic undifferentiated tumors in serous effusion]. Zhonghua Bing Li Xue Za Zhi 2024; 53:143-148. [PMID: 38281781 DOI: 10.3760/cma.j.cn112151-20230718-00012] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Objective: To investigate the clinicopathological characteristics of SMARCA4-deficient thoracic undifferentiated tumors, and the diagnostic value of the cells in serous effusion. Methods: Eleven cases of SMARCA4-deficient tumor were collected from the Affiliated Hospital of Hebei University, China from January 2018 to July 2023, which were diagnosed using cell block of serous effusion. The clinical, histopathological, immunohistochemical and molecular genetic features were reviewed, along with related literature. Results: All the 11 patients were males with ages ranging from 54 to 77 years (median 64 years). Nine patients were smokers and two had an unknown smoking history. Most of them complained of cough and dyspnea with pleural effusion. The primary tumor sites included lung (9 cases), thoracic wall (1 case), and mediastinum (1 case), while 3 patients had a history of lung surgery. Histologically, tumor cells were large and pleomorphic, with increased nuclear-cytoplasmic ratio. They also showed round nuclei, conspicuous nucleoli, and basophilic cytoplasm in serous effusion. Immunohistochemically, tumor cells in all cases were negative for SMARCA4/BRG1, CKpan and CK7, but positive for SMARCB1/INI1. Some of the cases were positive for CD34 (7/11), synaptophysin (4/11) and SALL4 (2/11). Histologically, monotonous tumor cells formed solid sheets or anastomosing islands with poor cell adhesion and rhabdoid morphology. Brisk mitotic figures were accompanied by large areas of necrosis. Some cases focally exhibited syncytia, and some had bright cytoplasm and vesicular chromatin. The immunohistochemical profiles in the tumor tissues were consistent with those of cytology. Six cases were negative for PD-L1 (22c3). Among the 6 cases analyzed by targeted next generation sequencing, concurrent SMARCA4 and TP53 mutations were detected in all 6 cases. Some of the 6 tumors showed mutations of STK11, CDKN2A, and MET, and amplification of ERBB2, exon deletion of BRCA2, etc. Follow-up information was available in all cases and ranged from 2 to 24 months. The patients showed metastases to various sites, including lymph node, liver, kidney, adrenal gland, brain, bone and other sites. Four patients died of the tumor. The survival time of 4 patients who underwent radical resection or radiofrequency ablation was more than 13 months. Conclusions: SMARCA4-deficient thoracic sarcoma is a rare but highly aggressive tumor with dismal prognosis and rhabdomyoid features. It is difficult to diagnose this disease using only serous effusion samples. This tumor thus warrants careful consideration. Accurate diagnosis can greatly improve early diagnosis and treatment of these tumors.
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Affiliation(s)
- W N Wang
- Department of Pathology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - X T Liu
- Department of Pathology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Y M Liang
- Department of Pathology, Affiliated Hospital of Hebei University, Baoding 071000, China
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Alemanno F, An Q, Azzarello P, Barbato FCT, Bernardini P, Bi XJ, Cai MS, Catanzani E, Chang J, Chen DY, Chen JL, Chen ZF, Cui MY, Cui TS, Cui YX, Dai HT, D'Amone A, De Benedittis A, De Mitri I, de Palma F, Deliyergiyev M, Di Santo M, Dong TK, Dong ZX, Donvito G, Droz D, Duan JL, Duan KK, D'Urso D, Fan RR, Fan YZ, Fang K, Fang F, Feng CQ, Feng L, Fusco P, Gao M, Gargano F, Gong K, Gong YZ, Guo DY, Guo JH, Guo XL, Han SX, Hu YM, Huang GS, Huang XY, Huang YY, Ionica M, Jiang W, Kong J, Kotenko A, Kyratzis D, Lei SJ, Li S, Li WL, Li X, Li XQ, Liang YM, Liu CM, Liu H, Liu J, Liu SB, Liu WQ, Liu Y, Loparco F, Luo CN, Ma M, Ma PX, Ma T, Ma XY, Marsella G, Mazziotta MN, Mo D, Niu XY, Pan X, Parenti A, Peng WX, Peng XY, Perrina C, Qiao R, Rao JN, Ruina A, Salinas MM, Shang GZ, Shen WH, Shen ZQ, Shen ZT, Silveri L, Song JX, Stolpovskiy M, Su H, Su M, Sun ZY, Surdo A, Teng XJ, Tykhonov A, Wang H, Wang JZ, Wang LG, Wang S, Wang XL, Wang Y, Wang YF, Wang YZ, Wang ZM, Wei DM, Wei JJ, Wei YF, Wen SC, Wu D, Wu J, Wu LB, Wu SS, Wu X, Xia ZQ, Xu HT, Xu ZH, Xu ZL, Xu ZZ, Xue GF, Yang HB, Yang P, Yang YQ, Yao HJ, Yu YH, Yuan GW, Yuan Q, Yue C, Zang JJ, Zhang F, Zhang SX, Zhang WZ, Zhang Y, Zhang YJ, Zhang YL, Zhang YP, Zhang YQ, Zhang Z, Zhang ZY, Zhao C, Zhao HY, Zhao XF, Zhou CY, Zhu Y. Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission. Phys Rev Lett 2021; 126:201102. [PMID: 34110215 DOI: 10.1103/physrevlett.126.201102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the Dark Matter Particle Explorer (DAMPE) is reported in this work. A hardening of the spectrum is observed at an energy of about 1.3 TeV, similar to previous observations. In addition, a spectral softening at about 34 TeV is revealed for the first time with large statistics and well controlled systematic uncertainties, with an overall significance of 4.3σ. The DAMPE spectral measurements of both cosmic protons and helium nuclei suggest a particle charge dependent softening energy, although with current uncertainties a dependence on the number of nucleons cannot be ruled out.
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Affiliation(s)
- F Alemanno
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - Q An
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - P Azzarello
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - F C T Barbato
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - P Bernardini
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - X J Bi
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
| | - M S Cai
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - E Catanzani
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - J Chang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - D Y Chen
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J L Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Z F Chen
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - M Y Cui
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - T S Cui
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y X Cui
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - H T Dai
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - A D'Amone
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - A De Benedittis
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - I De Mitri
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - F de Palma
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - M Deliyergiyev
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - M Di Santo
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - T K Dong
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z X Dong
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - G Donvito
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - D Droz
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - J L Duan
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - K K Duan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - D D'Urso
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - R R Fan
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - Y Z Fan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - K Fang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - F Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - C Q Feng
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - L Feng
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - P Fusco
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
- Dipartimento di Fisica "M. Merlin" dell'Università e del Politecnico di Bari, I-70126 Bari, Italy
| | - M Gao
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - F Gargano
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - K Gong
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - Y Z Gong
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - D Y Guo
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J H Guo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - X L Guo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - S X Han
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y M Hu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - G S Huang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - X Y Huang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Y Y Huang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - M Ionica
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - W Jiang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - J Kong
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - A Kotenko
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - D Kyratzis
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - S J Lei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - S Li
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - W L Li
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - X Li
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - X Q Li
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y M Liang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - C M Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - H Liu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - S B Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - W Q Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Liu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - F Loparco
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
- Dipartimento di Fisica "M. Merlin" dell'Università e del Politecnico di Bari, I-70126 Bari, Italy
| | - C N Luo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - M Ma
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - P X Ma
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - T Ma
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - X Y Ma
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - G Marsella
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - M N Mazziotta
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - D Mo
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X Y Niu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X Pan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - A Parenti
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - W X Peng
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - X Y Peng
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - C Perrina
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - R Qiao
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J N Rao
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - A Ruina
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - M M Salinas
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - G Z Shang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - W H Shen
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Z Q Shen
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z T Shen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - L Silveri
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - J X Song
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - M Stolpovskiy
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - H Su
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - M Su
- Department of Physics and Laboratory for Space Research, the University of Hong Kong, Pok Fu Lam, Hong Kong SAR 999077, China
| | - Z Y Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - A Surdo
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - X J Teng
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - A Tykhonov
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - H Wang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - J Z Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - L G Wang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - S Wang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - X L Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y F Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y Z Wang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z M Wang
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - D M Wei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - J J Wei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Y F Wei
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - S C Wen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - D Wu
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J Wu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - L B Wu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - S S Wu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - X Wu
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - Z Q Xia
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - H T Xu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Z H Xu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Z L Xu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Z Xu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - G F Xue
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - H B Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - P Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Q Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - H J Yao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y H Yu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - G W Yuan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Q Yuan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - C Yue
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J J Zang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - F Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - S X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - W Z Zhang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Y J Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y L Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y P Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Q Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Y Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - C Zhao
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - H Y Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X F Zhao
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - C Y Zhou
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y Zhu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
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Chang YJ, Wu DP, Lai YR, Liu QF, Sun YQ, Hu J, Hu Y, Zhou JF, Li J, Wang SQ, Li W, Du X, Lin DJ, Ren HY, Chen FP, Li YH, Zhang X, Huang H, Song YP, Jiang M, Hu JD, Liang YM, Wang JB, Xiao Y, Huang XJ. Antithymocyte Globulin for Matched Sibling Donor Transplantation in Patients With Hematologic Malignancies: A Multicenter, Open-Label, Randomized Controlled Study. J Clin Oncol 2020; 38:3367-3376. [PMID: 32650683 DOI: 10.1200/jco.20.00150] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
PURPOSE The role of antithymocyte globulin (ATG) in preventing acute graft-versus-host disease (aGVHD) after HLA-matched sibling donor transplantation (MSDT) is still controversial. PATIENTS AND METHODS We performed a prospective, multicenter, open-label, randomized controlled trial (RCT) across 23 transplantation centers in China. Patients ages 40-60 years with standard-risk hematologic malignancies with an HLA-matched sibling donor were randomly assigned to an ATG group (4.5 mg/kg thymoglobulin plus cyclosporine [CsA], methotrexate [MTX], and mycophenolate mofetil [MMF]) and a control group (CsA, MTX, and MMF). The primary end point of this study was grade 2-4 aGVHD on day 100. RESULTS From November 2013 to April 2018, 263 patients were enrolled. The cumulative incidence rate of grade 2-4 aGVHD was significantly reduced in the ATG group (13.7%; 95% CI, 13.5% to 13.9%) compared with the control group (27.0%; 95% CI, 26.7% to 27.3%; P = .007). The ATG group had significantly lower incidences of 2-year overall chronic GVHD (27.9% [95% CI, 27.6% to 28.2%] v 52.5% [95% CI, 52.1% to 52.9%]; P < .001) and 2-year extensive chronic GVHD (8.5% [95% CI, 8.4% to 8.6%] v 23.2% [95% CI, 22.9% to 23.5%]; P = .029) than the control group. There were no differences between the ATG and control groups with regard to cytomegalovirus reactivation, Epstein-Barr virus reactivation, 3-year nonrelapse mortality (NRM), 3-year cumulative incidence of relapse (CIR), 3-year overall survival, or 3-year leukemia-free survival. Three-year GVHD relapse-free survival was significantly improved in the ATG group (38.7%; 95% CI, 29.9% to 47.5%) compared with the control group (24.5%; 95% CI, 16.9% to 32.1%; P = .003). CONCLUSION Our study is the first prospective RCT in our knowledge to demonstrate that ATG can effectively decrease the incidence of aGVHD after MSDT in the CsA era without affecting the CIR or NRM.
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Affiliation(s)
- Ying-Jun Chang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, and Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - De-Pei Wu
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yong-Rong Lai
- Department of Hematology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qi-Fa Liu
- Nanfang Hospital Affiliated to Southern Medical University, Guangzhou, China
| | - Yu-Qian Sun
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, and Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Jiong Hu
- State Key Laboratory for Medical Genomics, Department of Hematology, Shanghai Institute of Hematology, and Collaborative Innovation Center of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Hu
- Union Hospital Affiliated With Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Feng Zhou
- Department of Hematology, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Juan Li
- Department of Hematology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shun-Qing Wang
- Department of Hematology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Wei Li
- The First Hospital of Jilin University, Changchun, China
| | - Xin Du
- Guangdong General Hospital, Guangzhou, China
| | - Dong-Jun Lin
- Third Hospital of Sun Yat-sen University, Guangzhou, China
| | - Han-Yun Ren
- Department of Hematology, Peking University First Hospital, Beijing, China
| | - Fang-Pin Chen
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, China
| | - Yu-Hua Li
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xi Zhang
- Xinqiao Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Yong-Ping Song
- The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Ming Jiang
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Jian-Da Hu
- Fujian Medical University Union Hospital, Fuzhou, China
| | - Ying-Min Liang
- Tangdu Hospital Air Force Medical University, Xi'an, China
| | | | - Yang Xiao
- Southern Theater General Hospital of the Chinese People's Liberation Army, Guangzhou, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, and Peking-Tsinghua Center for Life Sciences, Beijing, China
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4
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Zhu XF, He HL, Wang SQ, Tang JY, Han B, Zhang DH, Wu LQ, Wu DP, Li W, Xia LH, Zhu HL, Liu F, Shi HX, Zhang X, Zhou F, Hu JD, Fang JP, Chen XQ, Ye TZ, Liang YM, Jin J, Zhang FK. Current Treatment Patterns of Aplastic Anemia in China: A Prospective Cohort Registry Study. Acta Haematol 2019; 142:162-170. [PMID: 31091521 DOI: 10.1159/000499065] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/14/2018] [Indexed: 02/05/2023]
Abstract
Aplastic anemia (AA) is a hematologic disease characterized by pancytopenia and hypocellular bone marrow, potentially leading to chronic anemia, hemorrhage, and infection. The China Aplastic Anemia Committee and British Committee for Standards in Haematology guidelines recommend hematopoietic stem-cell transplantation (HSCT) or immunosuppressive therapy (IST) comprising antithymocyte globulin (ATG) with cyclosporine (CsA) as initial treatment for AA patients. With limited epidemiological data on the clinical management of AA in Asia, a prospective cohort registry study involving 22 AA treatment centers in China was conducted to describe the disease characteristics of newly diagnosed AA patients and investigate real-world treatment patterns and patient outcomes. Of 340 AA patients, 72.9, 12.6, and 3.5% were receiving IST, traditional Chinese medicine, and HSCT, respectively, at baseline; only 22.2% of IST-treated patients received guideline-recommended ATG with CsA initially. Almost all patients received supportive care (95.6%) as blood transfusion (97.8%), antibiotics (63.7%), and/or hematopoietic growth factors (58.2%). Overall, 64.8% achieved a partial or complete response, and 0.9% experienced relapse. No new safety concerns were identified; serious adverse events were largely unrelated to the treatment regimen. These results demonstrate the need to identify and minimize treatment barriers to standardize and align AA management in China with treatment guideline recommendations and further improve patient outcomes.
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Affiliation(s)
- Xiao-Fan Zhu
- Center for Pediatric Blood Disease, State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hai-Long He
- Department of Hematology and Oncology, Soochow University Affiliated Children's Hospital, Suzhou, China
| | - Shun-Qing Wang
- Department of Hematology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jing-Yan Tang
- Department of Hematology and Oncology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bing Han
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Dong-Hua Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Li-Qiang Wu
- Department of Hematology, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - De-Pei Wu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wei Li
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Ling-Hui Xia
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan-Ling Zhu
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Feng Liu
- Department of Hematology, Xiyuan Hospital, Chinese Academy of Chinese Medicine Sciences, Beijing, China
| | - Hong-Xia Shi
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xi Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Fang Zhou
- Department of Hematology, Jinan Military General Hospital, Jinan, China
| | - Jian-Da Hu
- Department of Hematology, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jian-Pei Fang
- Department of Pediatric Hematology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xie-Qun Chen
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tie-Zhen Ye
- Department of Pediatric Hematology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Feng-Kui Zhang
- Department of Anemia Therapeutic Centre, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China,
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Zhang YS, Weng WY, Xie BC, Meng Y, Hao YH, Liang YM, Zhou ZK. Glucagon-like peptide-1 receptor agonists and fracture risk: a network meta-analysis of randomized clinical trials. Osteoporos Int 2018; 29:2639-2644. [PMID: 30083774 DOI: 10.1007/s00198-018-4649-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/19/2018] [Indexed: 02/08/2023]
Abstract
UNLABELLED Our network meta-analysis analyzed the effects of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) on fracture risk. By combining data from randomized controlled trials, we found that GLP-1 RAs were associated with a decreased bone fracture risk, and exenatide is the best option agent with regard to the risk of fracture. This study is registered with PROSPERO (CRD42018094433). INTRODUCTION Data on the effects of GLP-1 RAs on fracture risk are conflicted. This study aimed to analyze the available evidence on the effects of GLP-1 RAs on fracture risk in type 2 diabetes mellitus patients. METHODS Electronic databases were searched for relevant published articles, and unpublished studies presented at ClinicalTrials.gov were searched for relevant clinical data. All analyses were performed with STATA 12.0 and R software (Version 3.4.4). We estimated the risk ratio (RR) and 95% confidence interval (CI) by combining RRs for fracture effects of included trials. RESULTS There were 54 eligible random control trials (RCTs) with 49,602 participants, including 28,353 patients treated with GLP-1 RAs. Relative to placebo, exenatide (RR, 0.17; 95% CI 0.03-0.67) was associated with lowest risk of fracture among other GLP-1 RAs. Exenatide had the highest probability to be the safest option with regard to the risk of fracture (0.07 ‰), followed by dulaglutide (1.04%), liraglutide (1.39%), albiglutide (5.61%), lixisenatide (8.07%), and semaglutide (18.72%). A statistically significant inconsistency was observed in some comparisons. CONCLUSION The Bayesian network meta-analysis suggests that GLP-1 RAs were associated with a decreased bone fracture risk compared to users of placebo or other anti-hyperglycemic drugs in type 2 diabetes mellitus patients, and exenatide is the best option agent with regard to the risk of fracture.
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Affiliation(s)
- Y S Zhang
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - W Y Weng
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - B C Xie
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - Y Meng
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - Y H Hao
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - Y M Liang
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China
| | - Z K Zhou
- Department of Pharmacy, Guangdong Medical University, No. 1, Xincheng Dadao, Songshan Lake Science and Technology Industry Park, Dongguan, 523808, China.
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6
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Chen JJ, Huang SY, Ma PF, Wu BJ, Zhou SL, Zhao YX, Gong JM, Liang YM. [Prokaryotic Expression and Purification of the Notch Ligand and Its Effect on Hematopoiesis after Carbon Tetrachloride Damage]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2018; 26:576-583. [PMID: 29665935 DOI: 10.7534/j.issn.1009-2137.2018.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To express and purify the mouse endothelial cell-targeted recombinant Notch ligand protein mD1R, and to investigate its effect on hematopoiesis after carbon tetrachloride damage. METHODS PCR was performed to clone and construct the expression vector pET22b(+)-mD1R. The mD1R successfully transformed into E. coli was induced by IPTG, and purified with Ni2+-beads affinity chromatography. The target protein was detected by SDS-PAGE. The fluorescence-activated cell sorting analysis (FACS), cell adhesion test, immunofluorescence staining and quantitative real-time PCR were employed to detect the endothelial cell-targeted and Notch signaling-activated biological characteristics of mD1R. The carbon tetrachloride mouse model was established to observe the effects of mD1R on the hematopoietic stem cell (HSC), myeloid cells and lymphoid cells by flow cytometry. The Lin-Scal-1+c-Kit+ cells were sorted by magnetic bead, FACS was performed to analyze the cell cycle, and RT-PCR was employed to observe the expression of interleukin (IL)-10. RESULTS The prokaryotic expression vector was successfully cloned and constructed. The purity and the activity were confirmed in mD1R recombinant protein. The purified mD1R activated the Notch signaling pathway of hematopoietic stem cells in carbon tetrachloride damaged mouse, and internally elevated the number of HSC and long-term HSC to 2.96-fold and 6.18-fold. In addition, mD1R improved the amplification of the myeloid progenitor cells and the myeloid-derived suppressor cells, particularly the granulocyte/monocyte into blood. Mechanistically, the further analyses suggested that Notch pathway could increase the proliferation of HSC and enhance expression of IL-10 after stress injury. CONCLUSIONS A new and activated recombinant Notch ligand protein has been obtained successfully to communicate hematopoietic stem cells and hematopoietic microenvironment. The Notch- mediated intrinsic hematopoiesis has been regulated by the anti-inflammatory factor after stress injury.
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Affiliation(s)
- Juan-Juan Chen
- Department of Oncology and Hematology, The 421th Hospital of Chinese People's Liberation Army, Guangzhou 510318, Guangdong Province, China
| | - Si-Yong Huang
- Department of Hematology, Xi'an Gaoxin Hospital, Xi'an 710075, Shaanxi Province, China
| | - Peng-Fei Ma
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Bi-Jia Wu
- Department of Oncology and Hematology, The 421th Hospital of Chinese People's Liberation Army, Guangzhou 510318, Guangdong Province, China
| | - Si-Lang Zhou
- Department of Oncology and Hematology, The 421th Hospital of Chinese People's Liberation Army, Guangzhou 510318, Guangdong Province, China
| | - Yong-Xing Zhao
- Department of Oncology and Hematology, The 421th Hospital of Chinese People's Liberation Army, Guangzhou 510318, Guangdong Province, China
| | - Jun-Mei Gong
- Department of Oncology and Hematology, The 421th Hospital of Chinese People's Liberation Army, Guangzhou 510318, Guangdong Province, China
| | - Ying-Min Liang
- Department of Hematology, Xi'an Gaoxin Hospital, Xi'an 710075, Shaanxi Province, China. E-mail:
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Wu JQ, Song YP, Su LP, Zhang MZ, Li W, Hu Y, Zhang XH, Gao YH, Niu ZX, Feng R, Wang W, Peng JW, Li XL, Ouyang XN, Wu CP, Zhang WJ, Zeng Y, Xiao Z, Liang YM, Zhuang YZ, Wang JS, Sun ZM, Bai H, Cui TJ, Feng JF. Three-year Follow-up on the Safety and Effectiveness of Rituximab Plus Chemotherapy as First-Line Treatment of Diffuse Large B-Cell Lymphoma and Follicular Lymphoma in Real-World Clinical Settings in China: A Prospective, Multicenter, Noninterventional Study. Chin Med J (Engl) 2018; 131:1767-1775. [PMID: 30058572 PMCID: PMC6071449 DOI: 10.4103/0366-6999.237401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Prospective real-life data on the safety and effectiveness of rituximab in Chinese patients with diffuse large B-cell lymphoma (DLBCL) or follicular lymphoma (FL) are limited. This real-world study aimed to evaluate long-term safety and effectiveness outcomes of rituximab plus chemotherapy (R-chemo) as first-line treatment in Chinese patients with DLBCL or FL. Hepatitis B virus (HBV) reactivation management was also investigated. METHODS A prospective, multicenter, single-arm, noninterventional study of previously untreated CD20-positive DLBCL or FL patients receiving first-line R-chemo treatment at 24 centers in China was conducted between January 17, 2011 and October 31, 2016. Enrolled patients underwent safety and effectiveness assessments after the last rituximab dose and were followed up for 3 years. Effectiveness endpoints included progression-free survival (PFS) and overall survival (OS). Safety endpoints were adverse events (AEs), serious AEs, drug-related AEs, and AEs of special interest. We also reported data on the incidence of HBV reactivation. RESULTS In total, 283 previously untreated CD20-positive DLBCL and 31 FL patients from 24 centers were enrolled. Three-year PFS was 59% (95% confidence interval [CI]: 50-67%) for DLBCL patients and 46% (95% CI: 20-69%) for FL patients. For DLBCL patients, multivariate analyses showed that PFS was not associated with international prognostic index, tumor maximum diameter, HBV infection status, or number of rituximab treatment cycles, and OS was only associated with age >60 years (P < 0.05). R-chemo was well tolerated. The incidence of HBV reactivation in hepatitis B surface antigen (HBsAg)-positive and HBsAg-negative/hepatitis B core antibody-positive patients was 13% (3/24) and 4% (3/69), respectively. CONCLUSIONS R-chemo is effective and safe in real-world clinical practice as first-line treatment for DLBCL and FL in China, and that HBV reactivation during R-chemo is manageable with preventive measures and treatment. TRIAL REGISTRATION ClinicalTrials.gov, NCT01340443; https://clinicaltrials.gov/ct2/show/NCT01340443.
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Affiliation(s)
- Jian-Qiu Wu
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210008, China
| | - Yong-Ping Song
- Department of Hematology, Henan Cancer Hospital, Zhengzhou, Henan 450000, China
| | - Li-Ping Su
- Department of Hematology, Shanxi Cancer Hospital, Taiyuan, Shanxi 030013, China
| | - Ming-Zhi Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, China
| | - Wei Li
- Department of Oncology, Jilin University First Affiliated Hospital, Changchun, Jilin 130000, China
| | - Yu Hu
- Department of Hematology, Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430072, China
| | - Xiao-Hong Zhang
- Department of Hematology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yu-Huan Gao
- Department of Hematology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Zuo-Xing Niu
- Department of Oncology, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China
| | - Ru Feng
- Department of Hematology, Medical University Nanfang Hospital, Guangzhou, Guangdong 510000, China
| | - Wei Wang
- Department of Oncology, Guangdong Foshan First Hospital, Foshan, Guangdong 528000, China
| | - Jie-Wen Peng
- Department of Oncology, Guangdong Zhongshan People's Hospital, Zhongshan, Guangdong 528403, China
| | - Xiao-Lin Li
- Department of Hematology, Xiangya Hospital Central South University, Changsha, Hunan 410008, China
| | - Xue-Nong Ouyang
- Department of Oncology, Fuzhou General Hospital of Nanjing Military Command, Fuzhou, Fujian 350001, China
| | - Chang-Ping Wu
- Department of Oncology, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, China
| | - Wei-Jing Zhang
- Department of Oncology, 307 Hospital of Chinese People's Liberation Army, Beijing 100070, China
| | - Yun Zeng
- Department of Hematology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650221, China
| | - Zhen Xiao
- Department of Hematology, Affiliated Hospital of Neimenggu Medical College, Hohhot, Huhehaote, Inner Mongolia 010050, China
| | - Ying-Min Liang
- Department of Hematology, The Fourth Military Medical University Affiliated Tangdu Hospital, Xi'an, Shaanxi 710038, China
| | - Yong-Zhi Zhuang
- Department of Oncology, Daqing General Hospital Group Oilfield General Hospital, Daqing, Heilongjiang 163001, China
| | - Ji-Shi Wang
- Department of Hematology, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, China
| | - Zi-Min Sun
- Department of Hematology, Anhui Provincial Hospital, Hefei, Anhui 23000, China
| | - Hai Bai
- Department of Hematology, Lanzhou Military Hospital, Lanzhou, Gansu 730046, China
| | - Tong-Jian Cui
- Department of Oncology, Fujian Provincial Hospital, Fuzhou, Fujian 350001, China
| | - Ji-Feng Feng
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210008, China
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8
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Lin Y, Zhao JL, Zheng QJ, Jiang X, Tian J, Liang SQ, Guo HW, Qin HY, Liang YM, Han H. Notch Signaling Modulates Macrophage Polarization and Phagocytosis Through Direct Suppression of Signal Regulatory Protein α Expression. Front Immunol 2018; 9:1744. [PMID: 30105024 PMCID: PMC6077186 DOI: 10.3389/fimmu.2018.01744] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 07/16/2018] [Indexed: 12/23/2022] Open
Abstract
The Notch pathway plays critical roles in the development and functional modulation of myeloid cells. Previous studies have demonstrated that Notch activation promotes M1 polarization and phagocytosis of macrophages; however, the downstream molecular mechanisms mediating Notch signal remain elusive. In an attempt to identify Notch downstream targets in bone marrow-derived macrophages (BMDMs) using mass spectrometry, the signal regulatory protein α (SIRPα) appeared to respond to knockout of recombination signal-binding protein Jk (RBP-J), the critical transcription factor of Notch pathway, in macrophages. In this study, we validated that Notch activation could repress SIRPα expression likely via the Hes family co-repressors. SIRPα promoted macrophage M2 polarization, which was dependent on the interaction with CD47 and mediated by intracellular signaling through SHP-1. We provided evidence that Notch signal regulated macrophage polarization at least partially through SIRPα. Interestingly, Notch signal regulated macrophage phagocytosis of tumor cells through SIRPα but in a SHP-1-independent way. To access the translational value of our findings, we expressed the extracellular domains of the mouse SIRPα (mSIRPαext) to block the interaction between CD47 and SIRPα. We demonstrated that the soluble mSIRPαext polypeptides could promote M1 polarization and increase phagocytosis of tumor cells by macrophages. Taken together, our results provided new insights into the molecular mechanisms of notch-mediated macrophage polarization and further validated SIRPα as a target for tumor therapy through modulating macrophage polarization and phagocytosis.
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Affiliation(s)
- Yan Lin
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China
| | - Jun-Long Zhao
- Department of Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China.,Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Qi-Jun Zheng
- Department of Cardiac Surgery, Xijng Hospital, Fourth Military Medical University, Xi'an, China
| | - Xun Jiang
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jiao Tian
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Shi-Qian Liang
- Department of Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China
| | - Hong-Wei Guo
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Hong-Yan Qin
- Department of Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Hua Han
- Department of Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China.,Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
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Liu JW, Hong T, Qin X, Liang YM, Zhang P. Recent advance on genome editing for therapy of β-hemoglobinopathies. Yi Chuan 2018; 40:95-103. [PMID: 29428902 DOI: 10.16288/j.yczz.17-215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
β-hemoglobinopathies are one of six groups of common illnesses affecting human health. Although the genetic mechanisms have been elucidated for several decades, curable treatment options, other than allogeneic bone marrow transplantation, are still lacking. In recent years, rapid development in genome editing technologies and their clinical applications have opened up new directions for treatment of β-hemoglobinopathies. Genome editing technologies, as applied in autologous CD34 + hematopoietic stem and progenitor cells, represents a promising remedial means for the β-globin disorders. Hemoglobin gene mutations could be corrected with homologous recombination-mediated DNA repair pathway to repair the genetic defects, while the nonhomologous end-joining pathway may be used to silence the key repressor of fetal globin expression and reactivate fetal hemoglobin expression, thereby alleviating the clinical symptoms of β-hemoglobinopathies in patients. This review summarizes the recent advances on genome editing of β-hemoglobinopathies from the bench design to the establishment of clinical translational platforms, thereby providing critical insights and references on the application of genome editing technologies for the development of therapeutic strategies for β-hemoglobinopathies.
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Affiliation(s)
- Jia-Wei Liu
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Tao Hong
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Xin Qin
- Medical College, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Ying-Min Liang
- Tangdu Hospital, Fourth Military Medical Univerisy, Xi'an 710032, China
| | - Ping Zhang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an 710032, China
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10
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Lin Y, Fu W, Liang YM. [Establishment and Identification of SCL-tTA/BCR-ABL Transgenic Mouse Model with Chronic Myeloid Leukemia]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2017; 25:24-29. [PMID: 28245370 DOI: 10.7534/j.issn.1009-2137.2017.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To establish transgenic mouse model with chronic myeloid leukemia(CML) by tetracycline withdrawal, so as to provide the experimental tool for studying pathogenesis of CML and searching new therapeutic method for this disease. METHODS The BCR-ABL expression in stem and progenitor cells in SCL-tTA/BCR-ABL transgenic mice was induced by tetracycline withdrawal in drinking water; and the peripheral hemogram and spleen index were examined after identifying genotypes in mice; the distribution of hematopoietic lineage in bone marrow, spleen and peripheral blood was detected by flow cytometry. RESULTS As compared with the control mice, the peripheral hemogram showed the obvious increase of neutrophile granulocyte count and spleen index in BCR-ABL transgenic mice. All induced double transgenic mice showed a severe myeloid cell expansion (Gr-1+Mac-1+) and reduction in T (CD3+) and B(B220+) cell lineages in bone marrow, spleen and peripheral blood. CONCLUSION A mouse model to induce BCR-ABL expression is successfully set up by tetracycline withdrawal, which resembles chronic phase CML.
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Affiliation(s)
- Yan Lin
- Department of Pediatrics, Tangdu Hospital of The Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
| | - Wei Fu
- Department of Hematology, The Forty-four Hospital of Chinese PLA, Guiyang 550009, Guizhou Province, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital of The Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China. E-mail:
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Liang CY, Liang YM, Liu HZ, Zhu DM, Hou SZ, Wu YY, Huang S, Lai XP. Effect of Dendrobium officinale on D-galactose-induced aging mice. Chin J Integr Med 2017:10.1007/s11655-016-2631-x. [PMID: 28083812 DOI: 10.1007/s11655-016-2631-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To examine the effect of Dendrobium officinale (DO) on D-galactose-induced aging mice. METHODS Aging mice was induced by D-galactose at 0.125 g/kg for 10 weeks through subcutaneous injection except for the negative control group. After 10 days, according to complete random design, the aging modeling mice were randomized into 4 groups: aging control group (10 ML·kg-1·d-1) of distilled water), positive control group (vitamin B6 and ganodema lucidum tablets with a dose of 1 tablet/kg), DO-1 treatment group (DO juice with a dose of 1 g/kg), DO-2 treatment group (DO Polysaccharide with a dose of 0.32 g/kg), 14 mice in each group. All the animals were orally medicated daily for 9 weeks. Cognitive function assessment was performed using the maze test and step-down test. At the end of experiment, the superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and total antioxidant capacity (T-AOC) levels in the serum, the SOD, GSH-Px and nitric oxide (NO) levels in the cerebrum, the SOD and catalase (CAT) levels in the liver, the SOD and NO levels in the heart, and the SOD level in the kidney, were determined using commercial kits. The spleen, liver, heart, cerebrum and kidney were excised for histological study. RESULTS Compared to aging control group, DO shortened the time of passing through the maze and prolong the step-down latency of aging mice (P <0.05 or P<0.01). DO markedly up-regulated serum levels of SOD, GSH-Px and T-AOC, and restored SOD levels in the heart, liver, kidney and cerebrum to normal status (P<0.05 or P<0.01). DO at the dose of 1 g/kg also signififi cantly improved the degree of spleen lesions (P<0.01). CONCLUSIONS DO had marked anti-aging effect on D-galactose-induced model of aging. The underlying mechanism could be related to modulation on antioxidation system and immune system. The results indicated that DO could potentially be used as natural drugs or functional foods for preventing aging.
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Affiliation(s)
- Chu-Yan Liang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Ying-Min Liang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hua-Zhen Liu
- Guangdong Provincial Traditional Chinese Medical Hospital, Guangzhou, 510006, China
| | - Dong-Mei Zhu
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Shao-Zhen Hou
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Ya-Yun Wu
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Song Huang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xiao-Ping Lai
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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12
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Yu CL, Qiao ZH, Wang JM, Liang YM, Wu DP, Chen BA, Shi BF, Sun WJ, Qiao JX, Guo M, Qiao JH, Sun QY, Hu KX, Huang YJ, Zuo HL, Huang XJ, Ai HS. The long-term outcome of reduced-intensity allogeneic stem cell transplantation from a matched related or unrelated donor, or haploidentical family donor in patients with leukemia: a retrospective analysis of data from the China RIC Cooperative Group. Ann Hematol 2016; 96:279-288. [PMID: 27864604 DOI: 10.1007/s00277-016-2864-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 10/20/2016] [Indexed: 11/26/2022]
Abstract
This study compared 6-year follow-up data from patients undergoing reduced-intensity conditioning (RIC) transplantation with an HLA-matched related donor (MRD), an HLA-matched unrelated donor (MUD), or an HLA-haploidentical donor (HID) for leukemia. Four hundred and twenty-seven patients from the China RIC Cooperative Group were enrolled, including 301 in the MRD, 79 in the HID, and 47 in the MUD groups. The conditioning regimen involved fludarabine combined with anti-lymphocyte globulin and cyclophosphamide. Graft-versus-host disease (GVHD) prophylaxis was administered using cyclosporin A (CsA) and mycophenolate mofetil (MMF). Four hundred and nineteen patients achieved stable donor chimerism. The incidence of stage II-IV acute GVHD in the HID group was 44.3 %, significantly higher than that in the MRD (23.6 %) and MUD (19.1 %) groups. The 1-year transplantation-related mortality (TRM) rates were 44.3, 17.6, and 21.3, respectively. Event-free survival (EFS) at 6 years in the HID group was 36.7 %, significantly lower than that of the MRD and MUD groups (59.1 and 66.0 %, P < 0.001 and P = 0.001, respectively). For advanced leukemia, the relapse rate of the HID group was 18.5 %, lower than that of the MRD group (37.5 %, P = 0.05), but the EFS at 6 years was 31.7 and 30.4 % (P > 0.05), respectively. RIC transplantation with MRD and MUD had similar outcome in leukemia which is better than that with HID. RIC transplantation with HID had lower relapsed with higher TRM and GVHD rate, particularly in advanced leukemias. RIC transplantation with MRD and MUD had similar outcomes in leukemia and they were better than those with HID. RIC transplantation with HID had a lower relapse rate but higher TRM and GVHD rates, particularly in cases of advanced leukemia.
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Affiliation(s)
- Chang-Lin Yu
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Zhen-Hua Qiao
- Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jian-Min Wang
- Chang Hai Hospital of Shanghai Second Military Medical University, Shanghai, China
| | - Ying-Min Liang
- Tang-Du Hospital of Fourth Military Medical University, Xi'an, China
| | - De-Pei Wu
- Affiliated Hospital of Suzhou University, Suzhou, China
| | - Bao-An Chen
- Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | | | - Wan-Jun Sun
- Second Artillery General Hospital, Beijing, China
| | | | - Mei Guo
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Jian-Hui Qiao
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Qi-Yun Sun
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Kai-Xun Hu
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Ya-Jing Huang
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Hong-Li Zuo
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China
| | - Xiao-Jun Huang
- Department of Hematology and Transplantation, People's Hospital Under Beijing University, Beijing, 100044, China.
| | - Hui-Sheng Ai
- Department of Hematology and Transplantation, Affiliated Hospital of the Academy of Military Medical Sciences, 8 Dongdajie, Beijing, 100071, China.
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Hu B, Fu W, Huang SY, Gao XT, Li DH, Yan XQ, Zhang YP, Liu Q, Liu L, Liang YM. [Correlation between Plasma microRNA Expression and Acute Graft-Versus-Host Disease after Allogeneic Hematopoietic Stem Cell Transplantation]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2016; 24:827-32. [PMID: 27342518 DOI: 10.7534/j.issn.1009-2137.2016.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To investigate the microRNA (miRNA) expression in plasma of patients with aGVHD and without aGVHD after allo-hematopoietic stem cell transplantation (allo-HSCT). METHODS The miRNAs (miR-423, mirR199a-3p, miR93*, miR377) expression levels in peripheral blood plasma of 25 patients before and after allo-HSCT were detected by real-time PCR. RESULTS miR-423, miR199a-3p and miR-93* in aGVHD group were significantly upregulated (P<0.05); miR-377 expression was not significantly different between aGVHD and non-aGVHD (P>0.05). CONCLUSION The expression of miR-423, miR-199a-3p, miR-93* are upregulated in aGVHD group, which can be used as biomarkes to monitor and to diagnose aGVHD.
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Affiliation(s)
- Bin Hu
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Wei Fu
- Department of Hematology, Forty-fourth Hospital of Chinese PLA, Guiyang 550009, Guizhou Province, China
| | - Si-Yong Huang
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Xiao-Tong Gao
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Dan-Hui Li
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Xue-Qian Yan
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Yang-Ping Zhang
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Qiang Liu
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Li Liu
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hosipital, Fourth Military Medical Uiniversity, Xi'an 710038, Shaanxi Province, China. E-mail:
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Chen JJ, Gao XT, Yang L, Fu W, Liang L, Li JC, Hu B, Sun ZJ, Huang SY, Zhang YZ, Liang YM, Qin HY, Han H. Disruption of Notch signaling aggravates irradiation-induced bone marrow injury, which is ameliorated by a soluble Dll1 ligand through Csf2rb2 upregulation. Sci Rep 2016; 6:26003. [PMID: 27188577 PMCID: PMC4870557 DOI: 10.1038/srep26003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/25/2016] [Indexed: 01/12/2023] Open
Abstract
Physical and chemical insult-induced bone marrow (BM) damage often leads to lethality resulting from the depletion of hematopoietic stem and progenitor cells (HSPCs) and/or a deteriorated BM stroma. Notch signaling plays an important role in hematopoiesis, but whether it is involved in BM damage remains unclear. In this study, we found that conditional disruption of RBP-J, the transcription factor of canonical Notch signaling, increased irradiation sensitivity in mice. Activation of Notch signaling with the endothelial cell (EC)-targeted soluble Dll1 Notch ligand mD1R promoted BM recovery after irradiation. mD1R treatment resulted in a significant increase in myeloid progenitors and monocytes in the BM, spleen and peripheral blood after irradiation. mD1R also enhanced hematopoiesis in mice treated with cyclophosphamide, a chemotherapeutic drug that induces BM suppression. Mechanistically, mD1R increased the proliferation and reduced the apoptosis of myeloid cells in the BM after irradiation. The β chain cytokine receptor Csf2rb2 was identified as a downstream molecule of Notch signaling in hematopoietic cells. mD1R improved hematopoietic recovery through up-regulation of the hematopoietic expression of Csf2rb2. Our findings reveal the role of Notch signaling in irradiation- and drug-induced BM suppression and establish a new potential therapy of BM- and myelo-suppression induced by radiotherapy and chemotherapy.
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Affiliation(s)
- Juan-Juan Chen
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.,Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiao-Tong Gao
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.,Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Lan Yang
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Wei Fu
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.,Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Liang Liang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Jun-Chang Li
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Bin Hu
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Zhi-Jian Sun
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Si-Yong Huang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Yi-Zhe Zhang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Hong-Yan Qin
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
| | - Hua Han
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.,Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, 710032, China
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15
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Tian DM, Liang YM, Zhang YQ. Endothelium-targeted human Delta-like 1 enhances the regeneration and homing of human cord blood stem and progenitor cells. J Transl Med 2016; 14:5. [PMID: 26740017 PMCID: PMC4704259 DOI: 10.1186/s12967-015-0761-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 12/26/2015] [Indexed: 02/07/2023] Open
Abstract
Background Umbilical cord blood (UCB) is becoming an alternative cell source for hematopoietic stem cell transplantation (HSCT). However, umbilical cord blood transplantation (UCBT) has been severely limited by low and finite numbers of hematopoietic stem cells and their delayed engraftment. New strategies are needed to improve ex vivo expansion efficiency and in vivo haematopoietic recovery. Methods We produced an endothelium-targeted soluble Notch ligand, the Delta-Serrate-Lag-2 (DSL) domain of human Delta-like 1 fused with a RGD motif (hD1R), and tested the effects of this protein on human umbilical cord blood hematopoietic stem and progenitor cell (UCB-HSPC) ex vivo and in vivo. Results hD1R-mediated ex vivo expansion system was able to significantly increase the absolute number of UCB-HSPCs. The hD1R-expanded cells had the enhanced homing and maintained long-term hematopoietic stem cell repopulation capacity in the bone marrow of immunodeficient nonobese diabetic-severe combined immunodeficient (NOD/SCID) mice. Moreover, systemic administration of hD1R promoted the in vivo regeneration of donor cells in recipient mice and accelerated hematopoietic recovery, particularly in settings wherein the HSPCs dose was limiting. Conclusions Our results indicated that hD1R might be applied in improving hematopoietic recovery and HSC engraftment in human UCBT. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0761-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Deng-Mei Tian
- Department of Hematology, 309th Hospital, Chinese People's Liberation Army, Hei-san hu Street #17, 100091, Beijing, China.
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.
| | - Yong-Qing Zhang
- Department of Hematology, 309th Hospital, Chinese People's Liberation Army, Hei-san hu Street #17, 100091, Beijing, China.
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16
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Lai YY, Huang XJ, Li J, Zou P, Xu ZF, Sun H, Shao ZH, Zhou DB, Chen FP, Liu ZG, Zhu HL, Wu DP, Wang C, Zhang Y, Li Y, Hou M, Du X, Wang X, Li W, Lai YR, Zhou J, Zhou YH, Fang MY, Qiu L, Wang XM, Zhang GS, Jiang M, Liang YM, Zhang LS, Chen XQ, Bai H, Lin JY. Standardized fluorescence in situ hybridization testing based on an appropriate panel of probes more effectively identifies common cytogenetic abnormalities in myelodysplastic syndromes than conventional cytogenetic analysis: a multicenter prospective study of 2302 patients in China. Leuk Res 2015; 39:530-5. [PMID: 25823643 DOI: 10.1016/j.leukres.2015.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 01/22/2015] [Accepted: 02/10/2015] [Indexed: 02/05/2023]
Abstract
In an attempt to establish the advantages of fluorescence in situ hybridization (FISH) studies over conventional cytogenetic (CC) analysis, a total of 2302 de novo MDS patients from 31 Chinese institutions were prospectively selected in the present study for both CC and standardized FISH analysis for +8, -7/7q-, -5/5q-, 20q- and-Y chromosomal abnormalities. CC analysis was successful in 94.0% of the patients; of these patients, 35.9% of the cases were abnormal. FISH analysis was successful in all 2302 patients and detected at least one type of common cytogenetic abnormality in 42.7% of the cases. The incidences of +8, -7/7q-, -5/5q-, 20q- and-Y chromosomal abnormalities by FISH were 4.1% to 8.7% higher than those by CC. FISH identified abnormalities in 23.6% of the patients exhibiting normal CC results and revealed that 20.7% of the patients with adequate normal metaphases (≥20) had abnormal clones. FISH identified cytogenetic abnormalities in 50.4% of the patients with failed CC analysis. In summary, our multicenter studies emphasised and confirmed the importance of applying standardized FISH testing based on an appropriate panel of probes to detect common cytogenetic abnormalities in Chinese de novo MDS patients, particularly those with normal or failed CC results.
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Affiliation(s)
- Yue-Yun Lai
- Peking University People's Hospital, Peking University Institute of Hematology, No. 11 Xizhimen South Street, Beijing, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, No. 11 Xizhimen South Street, Beijing, China.
| | - Juan Li
- Department of Hematology, First Affiliated Hospital of Zhongshan University, Guangzhou, China
| | - Ping Zou
- Department of Hematology, Wuhan Union Hospital, Wuhan, China
| | - Ze-Feng Xu
- Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hui Sun
- Department of Hematology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zong-Hong Shao
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Dao-Bin Zhou
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Fang-Ping Chen
- Department of Hematology, Xiangya Hospital of Central-South University, Changsha, China
| | - Zhuo-Gang Liu
- Department of Hematology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Huan-Ling Zhu
- Department of Hematology, West China Hospital of Sichuan University, Chengdu, China
| | - De-Pei Wu
- Department of Hematology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chun Wang
- Department of Hematology, Shanghai First People's Hospital, Shanghai, China
| | - Yin Zhang
- Department of Hematology, Henan Province People's Hospital, Zhengzhou, China
| | - Yan Li
- Department of Hematology, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Ming Hou
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, China
| | - Xin Du
- Department of Hematology, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital of Shandong University, Jinan, China
| | - Wei Li
- Department of Hematology, First Affiliated Hospital of Jilin University, Changchun, China
| | - Yong-Rong Lai
- Department of Hematology, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Jin Zhou
- Department of Hematology, First Clinical College of Harbin Medical University, Harbin, China
| | - Yu-Hong Zhou
- Department of Hematology, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Mei-Yun Fang
- Department of Hematology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lin Qiu
- Harbin Institute of Hematology and Oncology, Harbin, China
| | - Xiao-Min Wang
- Department of Hematology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Guang-Sen Zhang
- Department of Hematology, Second Xiangya Hospital of Central-South University, Changsha, China
| | - Ming Jiang
- Department of Hematology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xian, China
| | - Lian-Sheng Zhang
- Department of Hematology, Second Hospital of Lanzhou University, Lanzhou, China
| | - Xie-Qun Chen
- Department of Hematology, Xijing Hospital Affiliated to the Fourth Military Medical University, Xian, China
| | - Hai Bai
- Department of Hematology, Lanzhou General Hospital of Lanzhou Command, Lanzhou, China
| | - Jin-Ying Lin
- Department of Hematology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
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17
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Liang YM, Huang XL, Chen G, Sheng LL, Li QF. Activated hypoxia-inducible factor-1α pathway modulates early events in stretch-induced skin neovascularization via stromal cell-derived factor-1 and vascular endothelial growth factor. Br J Dermatol 2014; 171:996-1005. [PMID: 24579781 DOI: 10.1111/bjd.12920] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Tissue expansion promotes skin regeneration. These responses occur only early after mechanical load and are then replaced by apoptosis-related events during stress relaxation. The mechanism modulating this transient process remains unknown. OBJECTIVE To elucidate key phenomena that drive early regenerative events after tissue expansion. METHODS Intraoperative tissue expansion was performed on 25 patients undergoing facial reconstruction. Paired skin biopsies were obtained from an expanded and unexpanded site from each patient. Differentially expressed genes were inspected by microarray and bioinformatic analysis, and dissected by quantitative polymerase chain reaction, Western blot and immunostaining. Paired biopsies from another nine patients undergoing cyclical expansion for 3 months were also investigated. RESULTS A total of 124 upregulated and 282 downregulated genes were identified. Among them, the biological terms of extracellular matrix organization and blood vessel growth were most significantly enriched, as shown by Gene Ontology analysis. GeneMANIA dissection demonstrated an interactive network highlighted by the canonical hypoxia-inducible factor-1α (HIF-1α) pathway with stromal cell-derived factor-1 (SDF-1) and vascular endothelial growth factor (VEGFA) being the hub genes. Levels of the HIF-1α protein and its targets SDF-1 and VEGFA were elevated in expanded skin, and CD31 and Ki67 expression increased, indicating augmented vascularity and cell proliferation. Trafficking of CD34(+) CD133(+) endothelial progenitor cells was enhanced in skin undergoing long-time cyclical expansion, a phenomenon that was usually modulated by the HIF-1α pathway. CONCLUSIONS The HIF-1α pathway is quickly activated and modulates early events in stretch-induced skin neovascularization. The effect may be augmented through enhanced endothelial progenitor cells recruitment into the expanded skin.
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Affiliation(s)
- Y M Liang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
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Xia DY, Liu L, Hao MW, Liu Q, Chen RA, Liang YM. A combination of STI571 and BCR-ABL1 siRNA with overexpressed p15INK4B induced enhanced proliferation inhibition and apoptosis in chronic myeloid leukemia. ACTA ACUST UNITED AC 2014. [PMID: 25387678 PMCID: PMC4244677 DOI: 10.1590/1414-431x20143734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
p15INK4B, a cyclin-dependent kinase inhibitor, has been recognized as a tumor
suppressor. Loss of or methylation of the p15INK4B gene in chronic
myeloid leukemia (CML) cells enhances myeloid progenitor formation from common
myeloid progenitors. Therefore, we examined the effects of overexpressed p15INK4B on
proliferation and apoptosis of CML cells. Overexpression of p15INK4B inhibited the
growth of K562 cells by downregulation of cyclin-dependent kinase 4 (CDK4) and cyclin
D1 expression. Overexpression of p15INK4B also induced apoptosis of K562 cells by
upregulating Bax expression and downregulating Bcl-2 expression. Overexpression of
p15INK4B together with STI571 (imatinib) or BCR-ABL1 small interfering RNA (siRNA)
also enhanced growth inhibition and apoptosis induction of K562 cells. The enhanced
effect was also mediated by reduction of cyclin D1 and CDK4 and regulation of Bax and
Bcl-2. In conclusion, our study may provide new insights into the role of p15INK4B in
CML and a potential therapeutic target for overcoming tyrosine kinase inhibitor
resistance in CML.
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Affiliation(s)
- D Y Xia
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - L Liu
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - M W Hao
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Q Liu
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - R A Chen
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Y M Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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Li GH, Fan YZ, Huang SY, Liu Q, Yin DD, Liu L, Chen RA, Hao MW, Liang YM. [Construction and expression of fusion protein TRX-hJagged1 in E.coli BL21]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2014; 22:807-11. [PMID: 24989299 DOI: 10.7534/j.issn.1009-2137.2014.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was purposed to construct prokaryotic expression vector and to investigate the expression of Notch ligand Jagged1 in E.coli. An expression vector pET-hJagged1 was constructed, which can be inserted in Jagged1 with different lengths, but the DSL domain of human Jagged1 should be contained. Then the recombinant plasmids were transformed into the competent cell of E.coli BL21, and the expression of the fusion protein was induced by IPTG. Fusion protein was purified from the supernatant of cell lysates via the Nickel affinity chromatography. The results showed that prokaryotic expression vectors pET-hJagged1 (Bgl II), pET-hJagged1 (Hind I) and pET-hJagged1 (Stu I) were successfully constructed, but only pET-hJagged1 (Stu I) could express the soluble TRX-hJagged1. The purified TRX-Jagged1 protein could be obtained via the Nickel affinity chromatography, and then confirmed by Western Blot. It is concluded that prokaryotic expression vector pET-hJagged1 is successfully constructed, but only pET-hJagged1 (Stu I) can express the soluble TRX-hJagged1 and the TRX-Jagged1 fusion protein is obtained through the prokaryotic expression system, which laid a solid foundation for further to explore the effects of Jagged1 in hematopoietic and lymphoid system.
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Affiliation(s)
- Guo-Hui Li
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Yu-Zhen Fan
- Department of Traditional Chinese Medicine, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Si-Yong Huang
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Qiang Liu
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Dan-Dan Yin
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Li Liu
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Ren-An Chen
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Miao-Wang Hao
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital of The Fourth Military Medicol University, Xian 710038, Shaanxi. E-mail:
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Fu W, Wang K, Zhao JL, Yu HC, Li SZ, Lin Y, Liang L, Huang SY, Liang YM, Han H, Qin HY. FHL1C induces apoptosis in Notch1-dependent T-ALL cells through an interaction with RBP-J. BMC Cancer 2014; 14:463. [PMID: 24952875 DOI: 10.1186/1471-2407-14-463] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 06/17/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Aberrantly activated Notch signaling has been found in more than 50% of patients with T-cell acute lymphoblastic leukemia (T-ALL). Current strategies that employ γ-secretase inhibitors (GSIs) to target Notch activation have not been successful. Many limitations, such as non-Notch specificity, dose-limiting gastrointestinal toxicity and GSI resistance, have prompted an urgent need for more effective Notch signaling inhibitors for T-ALL treatment. Human four-and-a-half LIM domain protein 1C (FHL1C) (KyoT2 in mice) has been demonstrated to suppress Notch activation in vitro, suggesting that FHL1C may be new candidate target in T-ALL therapy. However, the role of FHL1C in T-ALL cells remained unclear. METHODS Using RT-PCR, we amplified full-length human FHL1C, and constructed full-length and various truncated forms of FHL1C. Using cell transfection, flow cytometry, transmission electron microscope, real-time RT-PCR, and Western blotting, we found that overexpression of FHL1C induced apoptosis of Jurkat cells. By using a reporter assay and Annexin-V staining, the minimal functional sequence of FHL1C inhibiting RBP-J-mediated Notch transactivation and inducing cell apoptosis was identified. Using real-time PCR and Western blotting, we explored the possible molecular mechanism of FHL1C-induced apoptosis. All data were statistically analyzed with the SPSS version 12.0 software. RESULTS In Jurkat cells derived from a Notch1-associated T-ALL cell line insensitive to GSI treatment, we observed that overexpression of FHL1C, which is down-regulated in T-ALL patients, strongly induced apoptosis. Furthermore, we verified that FHL1C-induced apoptosis depended on the RBP-J-binding motif at the C-terminus of FHL1C. Using various truncated forms of FHL1C, we found that the RBP-J-binding motif of FHL1C had almost the same effect as full-length FHL1C on the induction of apoptosis, suggesting that the minimal functional sequence in the RBP-J-binding motif of FHL1C might be a new drug candidate for T-ALL treatment. We also explored the molecular mechanism of FHL1C overexpression-induced apoptosis, which suppressed downstream target genes such as Hes1 and c-Myc and key signaling pathways such as PI3K/AKT and NF-κB of Notch signaling involved in T-ALL progression. CONCLUSIONS Our study has revealed that FHL1C overexpression induces Jurkat cell apoptosis. This finding may provide new insights in designing new Notch inhibitors based on FHL1C to treat T-ALL.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, People's Republic of China.
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Tian DM, Liang L, Zhao XC, Zheng MH, Cao XL, Qin HY, Wang CM, Liang YM, Han H. Endothelium-targeted Delta-like 1 promotes hematopoietic stem cell expansion ex vivo and engraftment in hematopoietic tissues in vivo. Stem Cell Res 2013; 11:693-706. [PMID: 23727445 DOI: 10.1016/j.scr.2013.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/17/2013] [Accepted: 04/22/2013] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Notch ligands enhance ex vivo expansion of hematopoietic stem cells (HSCs). But to use Notch ligands in HSC therapies of human diseases, efforts are required to improve ex vivo expansion efficiency and in vivo transplant engraftment. DESIGN AND METHODS We designed and produced an endothelium-targeted soluble Notch ligand, the DSL domain of Delta-like 1 fused with a RGD motif (D1R), and examined the effects of this protein on HSCs ex vivo and in vivo. RESULTS D1R efficiently promoted ex vivo expansion of both mouse bone marrow (BM) and human umbilical cord blood HSCs. HSCs expanded with D1R up-regulated many of the stemness-related genes, and showed high BM engraftment efficacy with long-term repopulation capacity after transplantation. Moreover, in vivo administration of D1R increased the number of BM HSCs in mice, and facilitated BM recovery of mice after irradiation. Injection of D1R significantly improved HSC engraftment and myeloid recovery after BM transplantation in irradiated mice. D1R enhanced HSC engraftment not only in BM, but also in the liver and spleen after BM transplantation in mice. D1R induced the formation of compact cell clusters containing the transplanted HSCs in close contact with endothelial cells, reminiscent of HSC niches, in the liver and spleen. CONCLUSIONS D1R might be applied in improving both HSC expansion ex vivo and HSC engraftment in vivo in transplantation.
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Affiliation(s)
- Deng-Mei Tian
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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You CJ, Tian CM, Liang YM, Dong XB, Tsui C. First Report of Pitch Canker Disease Caused by Rhizosphaera kalkhoffii on Pinus sylvestris in China. Plant Dis 2013; 97:283. [PMID: 30722325 DOI: 10.1094/pdis-02-12-0166-pdn] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In November 2010, pitch canker disease was first discovered on Pinus sylvestris var. mongolica Litv. from Daxinganling region in Inner Mongolia Province, China, resulting in severe dieback and bark cracking on the host, accompanied by resin flowing profusely from cankers on the infected branches, cones, and trunks (2). The early stage symptoms consisted of sunken cankers, reddish-brown needles on infected twigs followed by heavy resin soaking of the wood as the disease progressed. Pieces of pitch-soaked wood (3 × 3 mm2) cut from cankerous tissue on branches were surface-sterilized with 0.4% NaOCl for 2 min and then rinsed twice in sterile distilled water. The fragments were placed on potato dextrose agar and incubated at 28°C in the dark. After 7 to 8 days, this process consistently yielded cultures with whitish, dense, aerial mycelium that later darkened to gray. Microconidia were single, oblong to cylindrical, aseptate, and 4 to 10 × 2 to 4 μm. Macroconidia were hyaline, 1- to 2-septate, oblong to cylindrical, with tiny papillae at both ends, and 10 to 13 × 2 to 5 μm, fitting the description of Rhizosphaera kalkhoffii (1). To verify the identification based on morphological features, the internal transcribed spacer (ITS) region of the ribosomal RNA genes was amplified using primers ITS1 (TCCGTAGGTGAACCTGCGG) and ITS4 (TCCTCCGCTTATTGATATGC) according to the published protocol (3), and then sequenced and compared to the GenBank database through BLAST search. Comparison of the sequences revealed 98% homology to R. kalkhoffii (EU700375.1 and EU700376.1). Representative sequences of R. kalkhoffii (JQ353721 and JQ353722) were deposited in GenBank. The pathogenicity of two representative isolates of R. kalkhoffii was also confirmed by spraying 40 μl of conidial suspension (4.6 × 106 conidia/ml) on the bark surface of 20 2-year-old healthy pine seedlings, wounded by scratching with a sterilized knife. Sterile distilled water sprays were used for the controls. Within 4 to 8 weeks after inoculation, 90% of inoculated P. sylvestris exhibited symptoms of pitch cankers around the inoculation site similar to those on the original infection. R. kalkhoffii was consistently reisolated from all inoculated plants but not from water-treated controls, fulfilling Koch's postulates. R. kalkhoffii have previously been documented as pathogens of needle blight of Picea pungens (1). To our knowledge, this is the first report of R. kalkhoffii as a pathogen on Pinus sylvestris in China, and furthermore, pitch canker disease is currently listed as a quarantine disease in China, increasing the significance of this report. References: (1) J. Kumi et al. Eur. J. Forest Pathol. 9:35, 1979. (2) J. K. Lee et al. Plant Pathol. 16:52, 2000. (3) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, CA, 1990.
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Affiliation(s)
- C J You
- Key Laboratory for Silviculture and Forest Conservation Affiliated to Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - C M Tian
- Key Laboratory for Silviculture and Forest Conservation Affiliated to Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Y M Liang
- Key Laboratory for Silviculture and Forest Conservation Affiliated to Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - X B Dong
- Department of Forest Conservation Affiliated to State Administration of Forestry, Shenyang 110034
| | - C Tsui
- Department of Forest Sciences, The University of British Columbia, Vancouver, BC,Canada V6T 1Z4
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Chen JY, Feng L, Zhang HL, Li JC, Yang XW, Cao XL, Liu L, Qin HY, Liang YM, Han H. Differential regulation of bone marrow-derived endothelial progenitor cells and endothelial outgrowth cells by the Notch signaling pathway. PLoS One 2012; 7:e43643. [PMID: 23118846 PMCID: PMC3485270 DOI: 10.1371/journal.pone.0043643] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 07/23/2012] [Indexed: 12/14/2022] Open
Abstract
Endothelial progenitor cells (EPCs) are heterogeneous populations of cells that participate in vasculogenesis and promote tissue regeneration. However the different roles of EPC populations in vasculogenesis and tissue regeneration, as well as their regulation and mechanisms remain elusive. In the present study, we cultured bone marrow (BM)-derived early EPCs (EEPCs) and endothelial outgrowth cells (EOCs), and investigated their roles in liver regeneration and their regulation by the Notch signaling pathway. We found that Notch signaling exhibited different effects on the proliferation and migration of EEPCs and EOCs. Our results also showed that while EEPCs failed to form vessel-like structures in a three dimensional sprouting model in vitro, EOCs could sprout and form endothelial cords, and this was regulated by the Notch signaling. We further showed that, by using a conditional knockout model of RBP-J (the critical transcription factor mediating Notch signaling), Notch signaling differentially regulates EEPCs and EOCs. In a partial hepatectomy (PHx) model, EEPCs Notch-dependently benefitted liver regeneration with respect to liver function and hepatocyte proliferation and apoptosis. In contrast, EOCs appeared not directly involved in the recovery of liver function and the increase of hepatocytes. These data suggested that the RBP-J-mediated Notch signaling differentially regulated the two types of EPCs, which showed different roles in liver regeneration.
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Affiliation(s)
- Jing-Yuan Chen
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Lei Feng
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Hai-Long Zhang
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jun-Chang Li
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xin-Wei Yang
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xiu-Li Cao
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Li Liu
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Hong-Yan Qin
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Ying-Min Liang
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
- * E-mail: (Y-ML); (HH)
| | - Hua Han
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, People's Republic of China
- * E-mail: (Y-ML); (HH)
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Lin Y, Yan XQ, Yang F, Yang XW, Jiang X, Zhao XC, Zhu BK, Liu L, Qin HY, Liang YM, Han H. Soluble extracellular domains of human SIRPα and CD47 expressed in Escherichia coli enhances the phagocytosis of leukemia cells by macrophages in vitro. Protein Expr Purif 2012; 85:109-16. [DOI: 10.1016/j.pep.2012.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 07/01/2012] [Accepted: 07/02/2012] [Indexed: 02/04/2023]
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Lai YY, Huang XJ, Cai Z, Cao XS, Chen FP, Chen XQ, Chen BA, Fang MY, Feng JF, Fu WL, Guo HY, Hou M, Hou J, Hu Y, Hu XT, Hu XM, Huang LQ, Jin J, Li JY, Li J, Li W, Liang YM, Liu T, Liu QF, Liu YH, Mao P, Ouyang J, Qiu LG, Qiu L, Shao CK, Shi B, Song YP, Sun ZM, Wang QS, Wang C, Wang JM, Wang YS, Wang Z, Wu JB, Wu YX, Xia RX, Xue YQ, Yang BZ, Yang G, Yang ZL, Yu L, Yuan Z, Zhang S, Zhang Y, Zhao HG, Zhao L, Zhou DB, Zou SH, Zhu YF. Prognostic power of abnormal cytogenetics for multiple myeloma: a multicenter study in China. Chin Med J (Engl) 2012; 125:2663-2670. [PMID: 22931972] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Chromosomal abnormalities have been shown to play an important prognostic role in multiple myeloma (MM). Interphase fluorescence in situ hybridization (i-FISH) has been much more effective to identify cytogenetic aberrations in MM than conventional cytogenetic technique (CC). To clearly determine the cytogenetic features of Chinese MM patients and identify their prognostic implications, we designed a multicenter study based on i-FISH including 672 patients from 52 hospitals in China. METHODS All 672 patients were systematically screened for the following genomic aberrations: del(13q), IgH rearrangement, del(p53) and 1q21 amplifications. RESULTS The analysis showed that the chromosomal changes were detected in 22.1% patients by CC and in 82.3% patients by i-FISH. The most common abnormalities by CC were chromosome 1 aberrations (48.4%), -13/13q- (37.6%), hyperdiploidy (36.6%), hypodiploidy (30.1%) and IgH rearrangements (23.7%). The most frequent abnormalities by FISH was del(13q), which was found in 60.4% patients, whereas IgH rearrangement, 1q21 amplification and p53 deletions were detected in 57.6%, 49.0% and 34.7% cases, respectively. By statistical analysis, -13/13q- by CC was associated with low level of platelet (P = 0.015), hyperdiploidy was associated with low level of serum albumin (P = 0.028), and IgH rearrangement by FISH was associated with high level of β2 microglobulin (P = 0.019). Moreover, 1q21 amplification and del(p53) by FISH conferred a high incidence of progressive disease (PD) after initial therapy. Metaphase detection of IgH rearrangements and chromosome 1 aberrations concurrently was associated with a short progression free survival (PFS) (P = 0.036). No significant prognostic implications of other cytogenetic abnormalities were found associated with overall survival and PFS. CONCLUSIONS Chinese MM patients had similar cytogenetic abnormalities compared with the previous reported studies. However, the prognostic significance of FISH aberrations were not clearly determined and further study is required.
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Affiliation(s)
- Yue-Yun Lai
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing 100044, China
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Abstract
Cancer metastasis is the leading cause of cancer-related deaths all over the world at present. Accumulated researches have demonstrated that cancer metastasis is composed of a series of successive incidents, mainly including epithelial-mesenchymal transition (EMT), malignant cell migration, resistance to anoikis, and angiogenesis and lymphangiogenesis processes. However, the complicated cellular and molecular mechanisms underlying and modulating these processes have not been well elucidated. Thus, studies on cancer metastasis mechanism may propose possibilities to therapeutically interfere with signaling pathways required for each step of cancer metastasis, therefore inhibiting the outgrowth of distant metastasis of tumors. Recent insights have linked the Notch signaling pathway, a critical pathways governing embryonic development and maintaining tumor stemness, to cancer metastasis. This chapter highlights the current evidence for aberration of the Notch signaling in metastasis of tumors such as osteosarcoma, breast cancer, prostate cancer, and melanoma. In these studies, Notch activity seems to participate in cancer metastasis by modulating the EMT, tumor angiogenesis processes, and the anoikis-resistance of tumor cells. Therefore, manipulating Notch signaling may represent a promising alternative/ complement therapeutic strategy targeting cancer metastasis besides cancer stemness.
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Affiliation(s)
- Yi-Yang Hu
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China
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Huang SY, Liu L, Hao MW, Yin DD, Wu YL, Chen RA, Li GH, Lui Q, Wang JC, He H, Liang YM. [Clinical analysis of peripheral blood stem cell mobilization regimens in autologous transplantation for treating non-Hodgkin's lymphoma]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2011; 19:1415-1418. [PMID: 22169294] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to compare the efficacy of CEP plus G-CSF and CVP plus G-CSF regimens in the mobilization and collection of peripheral blood hematopoietic stem cells (PBHSC), and in the hematopoietic recovery. 57 patients with non-Hodgkin's lymphoma (NHL) underwent autologous PBHSC transplantation were analyzed retrospectively. The PBHSC were mobilized and collected by using CEP plus G-CSF and CVP plus G-CSF respectively, and were retransfused into these NHL patients after preconditioning, then the mobilization efficacy, adverse reactions and hematopoietic recovery were analyzed. The results showed that the WBC count decreased to ≤ 1.0 × 10(9)/L, platelet amount dropped to ≤ 40 × 10(9)/L during peripheral blood stem cell mobilization of all patients, which indicated successful collection of PBHSC. The mean value of (4.38 ± 3.40) × 10(8)/kg mononuclear cells (MNC) containing (2.79 ± 2.53) × 10(6)/kg CD34(+) cells were collected in CEP plus G-CSF group, while the mean value of (3.31 ± 1.23) × 10(8)/kg MNC containing (2.02 ± 0.87) × 10(6)/kg CD34(+) cells were collected in CVP plus G-CSF group. The efficacy of mobilization in CEP plus G-CSF group was significantly higher than that in CVP plus G-CSF group (p < 0.05). After preconditioning, bone marrow was suppressed in all patients. The average time of WBC count recovery to ≥ 1.0 × 10(9)/L was 11.4 days in CEP plus G-CSF group and 12.3 days in CVP plus G-CSF group; the average time of platelet amount recovery to ≥ 50 × 10(9)/L was 18.6 days in CEP plus G-CSF group and 19.3 days in CVP plus G-CSF group. The statistical analysis showed no significant difference in the average time of hematopoietic recovery between 2 groups. It is concluded that autologous PBHSC transplantation shows significant effect for treatment of patients with NHL. Either modified CEP or CVP plus G-CSF regimen is safe and effective in PBHSC mobilization. The CEP plus G-CSF regimen is better than CVP plus G-CSF regimen.
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Affiliation(s)
- Si-Yong Huang
- Department of Hematology, Fourth Military Medical University, Shaanxi Province, China
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Hou SZ, Chen SX, Huang S, Jiang DX, Zhou CJ, Chen CQ, Liang YM, Lai XP. The hypoglycemic activity of Lithocarpus polystachyus Rehd. leaves in the experimental hyperglycemic rats. J Ethnopharmacol 2011; 138:142-149. [PMID: 21924344 DOI: 10.1016/j.jep.2011.08.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 08/14/2011] [Accepted: 08/29/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaves of Lithocarpus polystachyus Rehd. are used for the treatment of disorders such as diabetes, hypertension, and epilepsy in folk medicine of South China. The possible antidiabetic effects of the leaves were investigated in experimental type 2 and type 1 diabetic rats. MATERIALS AND METHODS Type 2 diabetic rats received orally three different extracts of Lithocarpus polystachyus Rehd. leaves for 4 weeks (aqueous extract [ST-1], ethanol extract [ST-2], flavonoid-rich fraction [ST-3]). At the end of the experiment biochemical parameters were tested and livers and pancreases were excised for histological study. After the comparison of the pharmacological test results of the three extracts, the one which showed the best bioactivity was further studied to confirm its antidiabetes effect on both type 2 and type 1 diabetic rats. RESULTS Compared to ST-1 and ST-2, ST-3 had better effects on regulation of blood glucose, glycosylated serum protein, cholesterol, triglyceride, malondialdehyde, superoxide dismutase and attenuation of liver injury in type 2 diabetic rats (p<0.01 or p<0.05). ST-3 administration for four weeks also significantly reduced the fasting serum insulin and C-peptide level and improved the insulin tolerance (p<0.05). In type 1 diabetic rats, ST-3 supplement for three weeks caused significant reduction in fasting blood glucose, total cholesterol, triglyceride, urea nitrogen, creatinine and liver mass, along with significantly inhibiting the decline of insulin level compared to diabetic control (p<0.05 or p<0.01). CONCLUSION The flavonoid-rich fraction of Lithocarpus polystachyus Rehd. leaves (ST-3) had better beneficial effect than that of the ethanol or aqueous extract in experimental diabetic rats, which means that the bioactivity of the herbal leaves is probably due to the presence of flavonoids. The results also strongly suggest that the antidiabetic effect of ST-3 was possibly through multiple mechanisms of action including blood lipid and antioxidant mediation. The results indicated that the aqueous flavonoid-rich fraction of Lithocarpus polystachyus Rehd. leaves possessed significant protective activity in type 2 and type 1 diabetes.
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Affiliation(s)
- Shao-Zhen Hou
- School of Chinese Pharmaceutical Science, Guangzhou University of Chinese Medicine, University Town, Guangzhou 510006, China
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Tong WY, Liang YM, Tam V, Yip HK, Kao YT, Cheung KMC, Yeung KWK, Lam YW. Biochemical characterization of the cell-biomaterial interface by quantitative proteomics. Mol Cell Proteomics 2010; 9:2089-98. [PMID: 20562470 DOI: 10.1074/mcp.m110.001966] [Citation(s) in RCA: 8] [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: 12/14/2022] Open
Abstract
Surface topography and texture of cell culture substrata can affect the differentiation and growth of adherent cells. The biochemical basis of the transduction of the physical and mechanical signals to cellular responses is not well understood. The lack of a systematic characterization of cell-biomaterial interaction is the major bottleneck. This study demonstrated the use of a novel subcellular fractionation method combined with quantitative MS-based proteomics to enable the robust and high-throughput analysis of proteins at the adherence interface of Madin-Darby canine kidney cells. This method revealed the enrichment of extracellular matrix proteins and membrane and stress fibers proteins at the adherence surface, whereas it shows depletion of extracellular matrix belonging to the cytoplasmic, nucleus, and lateral and apical membranes. The asymmetric distribution of proteins between apical and adherence sides was also profiled. Apart from classical proteins with clear involvement in cell-material interactions, proteins previously not known to be involved in cell attachment were also discovered.
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Affiliation(s)
- W Y Tong
- Department of Orthopaedics and Traumatology, LKS Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong
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Chen YR, Feng F, Yin DD, Liang YM, Han H. [Role of Delta-like 1 in differentiation and antigen presentation of mouse bone marrow-derived dendritic cells]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2010; 18:704-708. [PMID: 20561433] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The aim of this study was to investigate the role of Delta-like 1 (Dll1) in differentiation and antigen pre-sensation of mouse bone marrow-derived dendritic cells (DCs). In the presence of granulocyte macrophage colony stimulating factor (GM-CSF) and interleukin 4 (IL-4), mouse bone marrow cells were co-cultured with OP9-Dll1 and OP9-GFP cell lines respectively. After 8 days, the immature DCs were stimulated with tumor antigen. The surface molecules of the activated DCs including MHC II, CD80 and CD86 were analyzed by flow cytometry. Levels of IL-12 and IL-10 in the culture supernatant were detected by ELISA. In addition, the proliferation of T-cells co-cultured with DCs was analyzed by FACS through mixed T-lymphocyte reaction. The results showed that compared with OP9-GFP, the bone marrow cells co-cultured with OP9-Dll1 produced significantly more CD11c(+) DCs (p < 0.05), and possessed higher levels of surface molecule expression including MHC II, CD80 and CD86 after tumor antigen stimulation. The DCs secreted higher level of IL-12 (p < 0.05) and less IL-10 (p < 0.01). They also resulted in significantly stronger T-cell proliferation response. It is concluded that Dll1 can promote the differentiation of DCs from mouse bone marrow cells and enhance their antigen presentation capacity.
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Affiliation(s)
- Yun-Ru Chen
- Department of Hematology, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
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31
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Wang YC, He F, Feng F, Liu XW, Dong GY, Qin HY, Hu XB, Zheng MH, Liang L, Feng L, Liang YM, Han H. Notch signaling determines the M1 versus M2 polarization of macrophages in antitumor immune responses. Cancer Res 2010; 70:4840-9. [PMID: 20501839 DOI: 10.1158/0008-5472.can-10-0269] [Citation(s) in RCA: 347] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Macrophages are important tumor-infiltrating cells and play pivotal roles in tumor growth and metastasis. Macrophages participate in immune responses to tumors in a polarized manner: classic M1 macrophages produce interleukin (IL) 12 to promote tumoricidal responses, whereas M2 macrophages produce IL10 and help tumor progression. The mechanisms governing macrophage polarization are unclear. Here, we show that the M2-like tumor-associated macrophages (TAM) have a lower level of Notch pathway activation in mouse tumor models. Forced activation of Notch signaling increased M1 macrophages which produce IL12, no matter whether M1 or M2 inducers were applied. When Notch signaling was blocked, the M1 inducers induced M2 response in the expense of M1. Macrophages deficient in canonical Notch signaling showed TAM phenotypes. Forced activation of Notch signaling in macrophages enhanced their antitumor capacity. We further show that RBP-J-mediated Notch signaling regulates the M1 versus M2 polarization through SOCS3. Therefore, Notch signaling plays critical roles in the determination of M1 versus M2 polarization of macrophages, and compromised Notch pathway activation will lead to the M2-like TAMs. These results provide new insights into the molecular mechanisms of macrophage polarization and shed light on new therapies for cancers through the modulation of macrophage polarization through the Notch signaling.
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Affiliation(s)
- Yao-Chun Wang
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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Wang YC, Hu XB, He F, Feng F, Wang L, Li W, Zhang P, Li D, Jia ZS, Liang YM, Han H. Lipopolysaccharide-induced maturation of bone marrow-derived dendritic cells is regulated by notch signaling through the up-regulation of CXCR4. J Biol Chem 2009; 284:15993-6003. [PMID: 19357083 DOI: 10.1074/jbc.m901144200] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Dendritic cells (DCs) are professional antigen presenting cells to initiate immune response against pathogens, but mechanisms controlling the maturation of DCs are unclear. Here we report that, in the absence of recombination signal binding protein-Jkappa (RBP-J, the transcription factor mediating Notch signaling), lipopolysaccharide-stimulated monocyte-derived DCs are arrested at a developmental stage with few dendrites, low major histocompatibility complex II (MHC II) expression, and reduced motility and antigen presentation ability. RBP-J null DCs had lower expression of CXCR4. Transduction with a CXCR4-expressing lentivirus rescued developmental arrest of RBP-J-deficient DCs. Activation of Notch signaling in DCs up-regulated CXCR4 expression and increased the outgrowth of dendrites and the expression of MHC II. These effects were abrogated by a CXCR4 inhibitor. Therefore, Notch signaling is essential for DCs to transit from a dendrite(low)MHC II(low) immature state into a dendrite(high)MHC II(high) mature state, during the lipopolysaccharide-induced DC maturation, most likely through the up-regulation of CXCR4.
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Affiliation(s)
- Yao-Chun Wang
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710032, China
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Wang L, Wang CM, Hou LH, Dou GR, Wang YC, Hu XB, He F, Feng F, Zhang HW, Liang YM, Dou KF, Han H. Disruption of the transcription factor recombination signal-binding protein-Jkappa (RBP-J) leads to veno-occlusive disease and interfered liver regeneration in mice. Hepatology 2009; 49:268-77. [PMID: 19065680 DOI: 10.1002/hep.22579] [Citation(s) in RCA: 45] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
UNLABELLED Liver sinusoid (LS) endothelial cells (LSECs) support hepatocytes in resting livers and proliferate during liver regeneration to revascularize regenerated liver parenchyma. We report that recombination signal-binding protein-Jkappa (RBP-J), the critical transcription factor mediating Notch signaling, regulates both resting and regenerating LSECs. Conditional deletion of RBP-J resulted in LSEC proliferation and a veno-occlusive disease-like phenotype in the liver, as manifested by liver congestion, deposition of fibrin-like materials in LSs, edema in the space of Disse, and increased apoptosis of hepatocytes. Regeneration of liver was remarkably impaired, with reduced LSEC proliferation and destroyed sinusoidal structure. LSEC degeneration was obvious in the regenerating liver of RBP-J-deficient mice, with some LSECs losing cytoplasm, and organelles protruding into the remnant plasma-membrane of LSs to hamper the microcirculation and intensify veno-occlusive disease during liver regeneration. Hepatocytes were also degenerative, as shown by dilated endoplasmic reticulum, decreased proliferation, and increased apoptosis during liver regeneration. Molecular analyses revealed that the dynamic expression of several related molecules-such as vascular endothelial growth factor, vascular endothelial growth factor receptors 1 and 2, interleukin-6, and hepatocyte growth factor-was disturbed. CONCLUSION Notch/RBP-J signaling may play dual roles in LSECs: in resting liver it represses proliferation, and in regenerating liver it supports proliferation and functional differentiation.
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Affiliation(s)
- Lin Wang
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, China
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Li GH, Huang SY, Kang ZJ, Xu H, Liang YM. [Research advance of notch signal in ex vivo expansion of hematopoietic progenitor cells - review]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2008; 16:1227-1231. [PMID: 18928634] [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] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Ex vivo expansion of hematopoietic progenitor cells (HPCs) is valuable for clinical application, however, traditional ex vivo culture negatively affects long-term hematopoietic reconstitution ability. In the hematopoietic system, the expression of Notch receptors and their ligands has been widely reported. Active Notch signal inhibits the differentiation of HSCs while promotes their expansion, suggesting that ex vivo expansion of hematopoietic progenitor cells could be enhanced by manipulating Notch signal pathways. In this article the Notch signal pathways, Notch signal and maintenance of hematopoietic progenitor cells, Notch signal and expansion of hematopoietic progenitor cells and molecular mechanism of Notch signal maintaining undifferentiation of hematopoietic progenitor cells were reviewed.
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Affiliation(s)
- Guo-Hui Li
- Department of Hematology, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
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35
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Li GH, Kang ZJ, Huang SY, He F, Xu H, Zhang L, Wu YL, Niu XL, Ma CS, Han H, Liang YM. [Construction and expression of a fusion protein containing extracellular domain of human Jagged1 and Fc fragment of human IgG1 in Pichia Pastoris]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2008; 16:910-914. [PMID: 18718088] [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] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In order to construct a pichia pastoris expression vector containing the extracellular domain of human Jagged1 and the Fc fragment of human IgG1 fusion gene, or containing only the Fc fragment of human IgG1 and to express them in pichia pastoris. The extracellular domain of human Jagged1 gene was cloned from normal human bone marrow cells. After DNA sequencing, the extracellular domain of Jagged1 gene was inserted into pIC-Fc vector constructed previously, which is Pichia pastoris expression vector containing only the Fc fragment of human IgG1. The constructed plasmid was transformed into yeast GS115 by means of electroporation. The recombinant transformants with a high copy number of the plasmid were selected on MD plate with G418. The expression of protein was induced by addition of methanol. Then, protein expression was analyzed by SDS-PAGE. The results indicated that the extracellular domain of human Jagged1 gene was effectively amplified. The DNA sequencing result showed that the constructed plasmid containing hJagged1(ext)-Fc fusion gene was the same as designed. The fusion protein was successfully expressed in Pichia pastoris. It is concluded that the hJagged1(ext) gene has been successfully cloned and expressed, which provides a new fusion protein for further experiments, the hJagged1(ext)-Fc fusion protein can be used as a new stimulator for proliferation of hematopoietic stem/progenitor cells in vitro.
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Affiliation(s)
- Guo-Hui Li
- Department of Hematology, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
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36
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Feng JF, Liang YM, Bao YH, Pan YH, Jiang JY. Multiple primary primitive neuroectodermal tumours within the spinal epidural space with non-concurrent onset. J Int Med Res 2008; 36:366-70. [PMID: 18380950 DOI: 10.1177/147323000803600222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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] Open
Abstract
A case of multiple primary primitive neuroectodermal tumours (PNETs), which occurred at different levels of the spinal epidural space successively over a period of 8 months, is reported. A 24-year-old male, presenting with rapidly progressive paralysis, hyperthesia and a posterior epidural mass extending from T8 to T10 revealed by magnetic resonance imaging (MRI), exhibited a good recovery after initial emergency surgery. Lower back pain, chest pain and paralysis were subsequently reported. Spinal MRI in month 7 revealed a mass extending from T12 to L1 and another mass extending from T4 to T5 was detected epidurally in month 8. Additional operations were performed and radiotherapy was given. Pathological findings were consistent with PNETs and symptoms improved with treatment, particularly following each surgical excision.
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Affiliation(s)
- J F Feng
- Department of Neurosurgery, Renji Hospital, Shanghai Jiaotong University/School of Medicine, Shanghai, People's Republic of China
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37
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Shi ZX, He F, Wang LL, Liang YM, Han H, Wang CZ, Zhao Q, Geng XD. Expression, refolding, and purification of a truncated human Delta-like1, a ligand of Notch receptors. Protein Expr Purif 2008; 59:242-8. [PMID: 18367408 DOI: 10.1016/j.pep.2008.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 02/11/2008] [Accepted: 02/13/2008] [Indexed: 01/28/2023]
Abstract
The Notch signaling pathway plays a pivotal role in proliferation, apoptosis, and cell fate specification in both embryonic and postnatal development, and is a potential therapeutic target for human diseases such as cancer. To express in Escherichia coli and purify soluble fragment of human Delta-like1 (hDll1), we cloned two extracellular fragments of hDll1 [hDll1 (127-225) and hDll1 (26-225)]. The hDll1 (127-225) fragment was successfully expressed in E. coli as a GST fusion protein (GST-hDll1). The GST-hDll1 protein, which was expressed as inclusion bodies after induction by IPTG, was refolded and purified simultaneously using affinity chromatography and size exclusion chromatography. The purified GST-hDll1 was of more than 95% purity, and had a molecular weight of 39kDa. Reporter assay showed that GST-hDll1 could activate a reporter gene that is dependent on Notch activation. Therefore, using the E. coli expression system and different chromatography systems, we successfully expressed, refolded, and purified a biologically active GST-hDll1, which might be potentially useful for therapy and studying the Notch pathway.
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Affiliation(s)
- Zhan-Xia Shi
- Institute of Modern Separation Sciences, Department of Chemistry, Northwest University, Provincial Key Laboratory of Shaanxi, 229 Tai Bai North Road, Xian 710069, China
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Dou GR, Wang YC, Hu XB, Hou LH, Wang CM, Xu JF, Wang YS, Liang YM, Yao LB, Yang AG, Han H. RBP-J, the transcription factor downstream of Notch receptors, is essential for the maintenance of vascular homeostasis in adult mice. FASEB J 2007; 22:1606-17. [PMID: 18096813 DOI: 10.1096/fj.07-9998com] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In adults, angiogenic abnormalities are involved in not only tumor growth but several human inherited diseases as well. It is unclear, however, concerning how the normal vascular structure is maintained and how angiogenesis is initiated in normal adults. Using the Cre-LoxP-mediated conditional gene deletion, we show in the present study that in adult mice disruption of the transcription factor recombination signal-binding protein Jkappa (RBP-J) in endothelial cells strikingly induced spontaneous angiogenesis in multiple tissues, including retina and cornea, as well as in internal organs, such as liver and lung. In a choroidal neovascularization model, which mimics the angiogenic process in tumor growth and age-related macular degeneration, RBP-J deficiency induced a more intensive angiogenic response to injury. This could be transmitted by bone marrow, indicating that RBP-J could modulate bone marrow-derived endothelial progenitor cells in adult angiogenesis. In addition, in the absence of RBP-J, proliferation of endothelial cells increased significantly, leading to accumulative vessel outgrowth. These findings suggest that in adults RBP-J-mediated Notch signaling may play an essential role in the maintenance of vascular homeostasis by repressing endothelial cell proliferation.
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Affiliation(s)
- Guo-Rui Dou
- State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Xijing Hospital, Xi'an 710032, China
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Mu JJ, Liu ZQ, Liu WM, Liang YM, Yang DY, Zhu DJ, Wang ZX. Reduction of blood pressure with calcium and potassium supplementation in children with salt sensitivity: a 2-year double-blinded placebo-controlled trial. J Hum Hypertens 2005; 19:479-83. [PMID: 15759021 DOI: 10.1038/sj.jhh.1001854] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An investigation of the reductive effect of blood pressure and increment of urinary sodium excretion with calcium and potassium supplementation in children with sodium sensitivity is conducted. In total of 261 school children who had completed a 2-year double-blinded, placebo-controlled trial with calcium and potassium supplementation salt sensitivity, with a salt volume expansion and contraction protocol, was determined. The results showed that in children with salt sensitivity, the increase in blood pressure in the supplementary group was lower by 4.3/4.8 mmHg than that in the placebo group (P<0.05), while no significant change was found between the supplementary group and placebo group in children with nonsalt sensitivity. With calcium and potassium supplementation, the night urinary sodium excretion in children with salt sensitivity was significantly increased (P<0.01), and it is negatively correlated with the increase in blood pressure. It was suggested that a moderate increase of calcium and potassium intake in children with salt sensitivity, through interaction with sodium, can promote urinary sodium excretion and may play contribute to the prevention of hypertension.
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Affiliation(s)
- J J Mu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Medical College, Xian Jiaotong University, Xian, PR China.
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Furuse M, Ohta T, Ikenaga T, Liang YM, Isono N, Kuroiwa T, Preul MC. Effects of intravascular perfusion of cooled crystalloid solution on cold-induced brain injury using an extracorporeal cooling-filtration system. Acta Neurochir (Wien) 2003; 145:983-92; discussion 992-3. [PMID: 14628204 DOI: 10.1007/s00701-003-0119-x] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND We evaluated cerebral metabolic change during brain hypothermia with intravascular perfusion of cooled crystalloid solution using an extracorporeal cooling-filtration system and cerebroprotective effects of this hypothermia on brain injury in an animal model. METHOD Microdialysis probes were implanted into the bilateral parietal cortices. A cold-induced brain injury was produced behind the microdialysis probe on the right parietal cortex. Immediately after injury in the cooled group (n=9), Ringer's solution cooled to 5 degrees C was infused into the right vertebral artery after occlusion of the bilateral common carotid and the left vertebral arteries. Excessive fluid was ultrafiltrated by a dialyzer. Brain temperature was maintained at about 20 degrees C for 60 minutes. In 7 dogs, three neck arteries were occluded for 60 minutes after injury without cooled fluid infusion. The extracellular concentrations of glutamate, lactate, and pyruvate were measured serially for 180 minutes after injury. FINDINGS Extracellular glutamate concentrations in the cooled group did not increase, while there was a significant increase in the injured hemisphere as compared to the uninjured hemisphere in the non-cooled group ( P<0.05). Extracellular lactate concentrations increased slightly after occlusion in both groups. The depth of cortical injury was limited in the cooled group, but extended into the white matter in the non-cooled group up to 240 minutes after injury. INTERPRETATION Occlusion of three main arteries induced ischaemia under critical threshold in canine brains. Under this condition, intravascular cooling with crystalloid solution suppressed accumulation of extracellular glutamate and reduced tissue damage in the early phase after cold-induced brain injury, as cerebroprotective effects. This information suggests that a method employing brain hypothermia via intra-arterial cooling with an extracorporeal cooling-filtration system has potential to achieve successful, safe, selective brain cooling.
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Affiliation(s)
- M Furuse
- Department of Neurosurgery, Osaka Medical College, Takatsuki, Osaka, Japan.
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Liu Q, Liang YM, Zheng J, Li XY, Chen RA, Jiang SS, Wu RL. [Activation effects of BCR/ABL antigen on CML T cells mediated by protein transduction domain]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2003; 19:377-9. [PMID: 15163390] [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] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
AIM To study the activation effect of BCR/ABL antigen on T cells from CML patients mediated by protein transduction domain (PTD). METHODS The fused plasmid containing PTD gene and b3a2 bcr/abl gene of CML was constructed by genetic engineering technique and was expressed in E.coli. The PBMCs from CML patients were stimulated in-vitro with purified PTD-BCR/ABL antigen and then expression of the activation antigen CD25 on CD8(+) and CD4(+) T cells after stimulation was detected by flow cytometry (FCM). RESULTS After stimulation with 100 mg/L of PTD-BCR/ABL antigen (final concentration) for 4 days in-vitro, CD8(+) T cells were activated in 5 of 10 CML patients and CD4(+) T cells were activated in 2 of 10 patients. Both CD8(+) and CD4(+) T cells were activated simultaneously in one of them. However, neither CD4(+) nor CD8(+) T cells was activated in BCR/ABL antigen stimulation group as control. CONCLUSION Using a PTD-mediated antigen transduction system, exogenous BCR/ABL antigen can be transferred into APCs and be processed and presented onto surface of APCs to activate Ag-specific CD8(+) and CD4(+) T cells in-vitro. The strategy outlined in this paper may provide a new approach for priming Ag-specific CD8(+) and CD4(+) T cells in-vitro and immunotherapy of CML.
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Affiliation(s)
- Qiang Liu
- Department of Hematology of Tangdu Hospital,Fourth Military Medical University, Xi'an 710038,China
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Xie T, Liang YM, Liu WY, Li BJ, Ma YX. The structure dependent electrochemical-response of novel 1-(4-mercaptobutyl)-4-(2-ferrocenylvinyl)pyridinium bromide SAMs on an au electrode. Chem Commun (Camb) 2001:1578-9. [PMID: 12240390 DOI: 10.1039/b101154p] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 1-(4-mercaptobutyl)-4-(2-ferrocenylvinyl)pyridinium bromide (1-HS(CH2)(4)-4-[(E)-FcCH=CH]C5H4N)+Br- and its hydrogenated product [1-HS(CH2)(4)-4-(-FcCH2CH2)C5H4N]+Br- were synthesized and assembled on an Au electrode to form self-assembled monolayers which showed a structure-dependent electrochemical-response in phosphate buffer aqueous solutions (pH = 7).
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Affiliation(s)
- T Xie
- National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
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Liang YM, Jiang SS, Wu RL, Liu L, Hao MW, Deng ZR, Wang Z. [Alteration of the Cell Cycle during the Differentiation of HL-60 Cells by Induction of Retinoic Acid]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2001; 9:220-222. [PMID: 12578593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
To study the alteration of the cell cycle during the differentiation of human myeloid leukemia cell line HL-60 induced with all trans-retinoic acid (RA), the flow cytometry was used to assay the various phases of cell cycle in HL-60 cells treated with RA. The results showed: (1) S + G(2)/M phase proportion kept relative invariability during the 48 hours incubation of HL-60 cells with RA, however, the proportion alteration of S-phase cells was associated with the RA concentrations. At 10(-6) mol/L RA, the proportion of S-phase cells appeared a temporarily increasing peak followed by persistent decrease of S-phase proportion. At 10(-5) mol/L RA, S-phase cell proportion only appeared the persistent decreasing tendency. (2) Re-culture of HL-60 cells without RA showed the decrease of S + G(2)/M and S-phase cells was associated with the increase of differentiated cells, but not all HL-60 cells were triggered into differentiation at the same time. Once the cells start to differentiate, even if there is no RA presence, the HL-60 cells were still differentiated until maturation. In conclusion, HL-60 cells are able to differentate and maturate after exposure to RA for a period of time. S-phase proportion is related to the concentrations of RA. Once the cells start to differentiate, even if there is no RA presence, the HL-60 cells still differentiatiated until maturation.
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Affiliation(s)
- Ying-Min Liang
- Department of Hematology, Tangdu Hospital, The Fourth Military Medical University, Xian 710038, China
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Richards GP, Liang YM, Chao J, Chao L. Purification, characterization and activation of fish muscle prokallikrein. Comp Biochem Physiol C Pharmacol Toxicol Endocrinol 1997; 118:39-48. [PMID: 9366034 DOI: 10.1016/s0742-8413(97)00030-3] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Fish prokallikrein was isolated and characterized from skeletal muscle of the black sea bass, Centropristis striata. The prokallikrein was purified to apparent homogeneity by anion exchange perfusion chromatography and reversed phase high performance liquid chromatography. Initial identification was by its weak immunoreactivity with human tissue kallikrein antiserum. Two-dimensional gel electrophoresis and immunoblotting identified the protein as 36 kDa with a pI of 4.95-5.15. The prokallikrein was trypsin-activated to produce an approximately 36 kDa active enzyme as identified on an SDS-polyacrylamide gel overlayed with a membrane impregnated with the fluorogenic tripeptidyl substrate D-Val-Leu-Arg-7-amino-4-trifluoromethyl-coumarin. A potential dimer at 72 kDa was also enzymatically active. Bass kallikrein cleaved low molecular weight dog kininogen to release kinin peptide as determined by radioimmunoassay. The enzyme's amidolytic activity, with a pH optimum at 9.0, was inhibited by aprotinin, benzamidine, and phenylmethanesulphonyl fluoride, but not by elastatinal, soybean trypsin inhibitor, or limabean trypsin inhibitor. Polyclonal antiserum raised against the purified bass muscle prokallikrein recognized 36 kDa and 72 kDa proteins in bass heart, skeletal muscle, spleen, swimbladder, gill, and kidney by Western blot analyses. The wide distribution of immunoreactive proteins in the tissues suggests a potential physiological role for fish kallikreins in muscle contraction and/or relaxation, the regulation of local blood flow, and in osmoregulation. The detection of fish prokallikrein and its activation leads the way for an evaluation of the impact of kallikreins in fish health and disease processes and for studying the evolution of kallikreins and related serine proteinases.
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Affiliation(s)
- G P Richards
- U.S. Dept. of Commerce/NOAA, National Marine Fisheries Service, Charleston, SC 29412-9110, USA.
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45
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Abstract
Kallistatin is a serine proteinase inhibitor which binds to tissue kallikrein and inhibits its activity. The aim of this study is to evaluate if kallistatin has a direct effect on the vasculature and on blood pressure homeostasis. We found that an intravenous bolus injection of human kallistatin caused a rapid, potent, and transient reduction of mean arterial blood pressure in anesthetized rats. Infusion of purified kallistatin (0.07-1.42 nmol/kg) into cannulated rat jugular vein produced a 20-85 mmHg reduction of blood pressure in a dose-dependent manner. Hoe 140, a bradykinin B2-receptor antagonist, had no effect on the hypotensive effect of kallistatin yet it abolished the blood pressure-lowering effect of kinin and kallikrein. Relaxation of isolated aortic rings by kallistatin was observed in the presence (ED50 of 3.4 x 10(-9) M) and in the absence of endothelium (ED50 of 10(-9) M). Rat kallikrein-binding protein, but not kinin or kallikrein, induced vascular relaxation of aortic rings. Neither Hoe 140 nor Nomega-nitro--arginine methyl ester, a nitric oxide synthase inhibitor, affected vasorelaxation induced by kallistatin. Kallistatin also caused dose-dependent vasodilation of the renal vasculature in the isolated, perfused rat kidney. Specific kallistatin-binding sites were identified in rat aorta by Scatchard plot analysis with a Kd of 0.25+/-0.07 nM and maximal binding capacity of 47.9+/-10.4 fmol/mg protein (mean+/-SEM, n = 3). These results indicate that kallistatin is a potent vasodilator which may function directly through a vascular smooth muscle mechanism independent of an endothelial bradykinin receptor. This study introduces the potential significance of kallistatin in directly regulating blood pressure to reduce hypertension.
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MESH Headings
- Adrenergic beta-Antagonists/pharmacology
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/physiology
- Blood Pressure/drug effects
- Bradykinin/analogs & derivatives
- Bradykinin/pharmacology
- Carrier Proteins/administration & dosage
- Carrier Proteins/metabolism
- Carrier Proteins/pharmacology
- Humans
- In Vitro Techniques
- Infusions, Intravenous
- Injections, Intravenous
- Kallikreins/pharmacology
- Kinins/pharmacology
- Male
- Membrane Proteins/metabolism
- Muscle Contraction/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/physiology
- NG-Nitroarginine Methyl Ester/pharmacology
- Rats
- Rats, Inbred BN
- Rats, Inbred Strains
- Rats, Inbred WKY
- Rats, Sprague-Dawley
- Renal Circulation/drug effects
- Renal Circulation/physiology
- Serpins/administration & dosage
- Serpins/metabolism
- Serpins/pharmacology
- Vasodilation
- Vasodilator Agents
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Affiliation(s)
- J Chao
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina 29425, USA
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Abstract
The kallikrein-kinin system participates in blood pressure regulation. One of the kallikrein-kinin system components, kallikrein-binding protein, binds to tissue kallikrein and inhibits its activity in vitro. To investigate potential roles of rat kallikrein-binding protein (RKBP) in vivo, we have developed transgenic mice that express an RKBP gene under the control of the mouse metallothionein metal-responsive promoter. Expression of the transgene, RKBP, was detected in the liver, kidney, lung, heart, pancreas, salivary glands, spleen, brain, testis, and adrenal gland at the mRNA and protein levels. Systolic blood pressures of homozygous transgenic mice were 88.5 +/- 0.8 mm Hg (mean +/- S.E., n = 19, P < 0.001) for one line and 88.8 +/- 1.6 mm Hg (mean +/- S.E., n = 19, P < 0.001) for another, as compared with 100.5 +/- 0.8 mm Hg (mean +/- S.E., n = 18) for control mice. Direct blood pressure measurements of these transgenic mice through an arterial cannula showed similar reductions of blood pressure. Intravenous injection of purified RKBP into mice via a catheter produced a dose-dependent reduction of the mean arterial blood pressure. Our findings suggest that RKBP may function as a vasodilator in vivo, independent of regulating the activity of tissue kallikrein.
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Affiliation(s)
- L M Chen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina 29425, USA
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Huang CL, Deng ML, Guo RJ, Wu MT, Liu FZ, Liang YM, Qiao QD. A study on the induction of differentiation of human leukemic cells by harringtonine combined with cytarabine. Leukemia 1988; 2:518-22. [PMID: 3412024] [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] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Both harringtonine (Harr) and Ara-C are effective for treatment of ANLL. Since it was suggested that Harr could induce leukemic cells to differentiate and Ara-C might be a weak inducer of leukemic cell differentiation, we investigated the effect of Harr in combination with Ara-C on inducing differentiation of leukemic cells. Ten patients with ANLL were treated with low dose Harr in combination with low dose Ara-C. Complete remission was achieved in 8 of the 10 patients. After therapy, severe pancytopenia and moderate myelosuppression occurred in two patients who achieved remission. Four patients demonstrated a decrease in blast cells with an associated transient increase in mature granulocytes during therapy. Auer bodies appeared in 7-8% mature granulocytes in peripheral blood and in bone marrow on the 14th day of combination therapy in one patient. Freshly isolated leukemic cells from six pretreatment patients were cultured in liquid in the presence of Harr in combination with Ara-C. Apparent evidence of differentiation of leukemic cells and Auer bodies in the cytoplasm of mature granulocytic cells were observed in two of the six patients. The above results seem to suggest that the therapeutic effect of low dose Harr plus low dose Ara-C may result from both differentiation induction and cytotoxicity of the leukemic cells.
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Affiliation(s)
- C L Huang
- Department of Hematology, Second Teaching Hospital, Fourth Military Medical College, Xi'an, People's Republic of China
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Abstract
The regA gene of phage T4 encodes a translational repressor that inhibits utilization of its own mRNA as well as the translation of a number of other phage-induced mRNAs. In recombinant plasmids, autogenous translational repression limits production of the RegA protein when the cloned structural gene is expressed under control of a strong, plasmid-borne promoter (lambda PL). We have found that a genetic fusion which places the regA ribosome binding domain in proximity to active translation leads to partial derepression of wild-type RegA protein synthesis. The derepression is not due to increased synthesis of regA RNA, suggesting that it occurs at the translational level. Derepressed clones of the wild-type regA gene were used to overproduce and purify the repressor. In an in vitro assay the wild-type target was sensitive and a mutant target was resistant to inhibition by the added protein. The results suggest that the sensitivity of a regA-regulated cistron to translational repression may depend on the competition between ribosomes and RegA protein for overlapping recognition sequences in the translation initiation domain of the mRNA.
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Affiliation(s)
- Y M Liang
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston 29425
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Liang YM, Tu QX, Liu GY, Zhang XS. [Short term result of lung cancer treated by photodynamic therapy (PDT)]. Zhonghua Zhong Liu Za Zhi 1987; 9:50-2. [PMID: 2954802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Fifty four patients with cancer in the lumen of trachea-bronchus proved by histopathology were treated with PDT. 5 mg/kg hematoporphyrin derivative was given. 24-72 hr after injection, PDT was delivered, usually 1-3 times in density of 200-400 J/cm2. There were 69 cancer foci in 54 patients treated by PDT for 168 times in all. One patient, who received the highest number of treatments, was treated for 12 times intermittently. The treatment result: 14 cancer foci gave a complete response, 32 significant response, 21 minor and 2 no responses. Neither hemorrhage nor other serious complications were found. The results suggest that PDT be an effective method for lung cancer. Only being topical in nature, the implication of PDT is expected to be limited.
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Liang YM. [The analysis of 386 older persons examined with flexible fiberoptic bronchoscopy]. Zhonghua Jie He He Hu Xi Xi Ji Bing Za Zhi 1986; 9:286-7, 319. [PMID: 3803089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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