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Liu Y, Ding S, Sun JF, Li PP, Li XQ, Zeng LY, Xu KL, Qiao JL. [The effect of platelet infusion on the repair of bone marrow hematopoietic niche damage in mice induced by (60)Co radiation and hematopoietic reconstruction after bone marrow transplantation]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:635-641. [PMID: 37803836 PMCID: PMC10520226 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Indexed: 10/08/2023]
Abstract
Objective: To observe the effect of platelets on hematopoietic stem cell (HSCs) implantation in mice with radiation-induced bone marrow injury and bone marrow transplantation models. Methods: ①Male C57BL/6 mice were divided into a single irradiation group and a radiation infusion group after receiving (60)Co semimyeloablative irradiation for 18-10 weeks. The irradiation infusion group received 1×10(8) platelets expressing GFP fluorescent protein. ② The allogeneic bone marrow transplantation model was established. The experimental groups included the simple transplantation group (BMT) and the transplantation infusion group (BMT+PLT). The BMT group was infused through the tail vein only 5 × 10(6) bone marrow cells, the BMT+PLT group needs to be infused with bone marrow cells at the same time 1× 10(8) platelets. ③ Test indicators included peripheral blood cell and bone marrow cell counts, flow cytometry to detect the proportion of hematopoietic stem cell (HSC) and hematopoietic progenitor cells, bone marrow cell proliferation and apoptosis, and pathological observation of vascular niche damage and repair. Results: ①On the 3rd, 7th, 14(th), and 21st days after irradiation, the bone marrow cell count of the infusion group was higher than that in the single irradiation group (P<0.05), and the peripheral blood cell count was also higher. A statistically significant difference was found between the white blood cell count on the 21st day and the platelet count on the 7th day (P<0.05). In the observation cycle, the percentage of bone marrow cell proliferation in the infusion group was higher, while the percentage of apoptosis was lower. ② The results of bone tissue immunofluorescence after irradiation showed that the continuity of hematopoietic niche with red fluorescence was better in the irradiation infusion group. ③The chimerism percentage in the BMT+PLT group was always higher than that in the BMT group after transplantation.④ The BMT+PLT group had higher bone marrow cell count and percentage of bone marrow cell proliferation on the 7th and 28th day after transplantation than that in the BMT group, and the percentage of bone marrow cell apoptosis on the 14th day was lower than that in the BMT group (P<0.05). After the 14th day, the percentage of stem progenitor cells in the bone marrow cells of mice was higher than that in the BMT group (P<0.05). ⑤The immunohistochemical results of bone marrow tissue showed that the continuity of vascular endothelium in the BMT+PLT group was better than that in the BMT group. Conclusion: Platelet transfusion can alleviate the injury of vascular niche, promotes HSC homing, and is beneficial to hematopoietic reconstruction.
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Affiliation(s)
- Y Liu
- Department of Clinical Laboratory, the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - S Ding
- Department of Clinical Laboratory, the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - J F Sun
- Department of Clinical Laboratory, the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - P P Li
- Department of Clinical Laboratory, the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - X Q Li
- Blood Disease Institute, Xuzhou Medical University, Key Laboratory of Bone Marrow Stem Cell, Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - L Y Zeng
- Blood Disease Institute, Xuzhou Medical University, Key Laboratory of Bone Marrow Stem Cell, Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - K L Xu
- Blood Disease Institute, Xuzhou Medical University, Key Laboratory of Bone Marrow Stem Cell, Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - J L Qiao
- Blood Disease Institute, Xuzhou Medical University, Key Laboratory of Bone Marrow Stem Cell, Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
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Hou FQ, Yin YL, Zeng LY, Shang J, Gong GZ, Pan C, Zhang MX, Yin CB, Xie Q, Peng YZ, Chen SJ, Mao Q, Chen YP, Mao QG, Zhang DZ, Han T, Wang MR, Zhao W, Liu JJ, Han Y, Zhao LF, Luo GH, Zhang JM, Peng J, Tan DM, Li ZW, Tang H, Wang H, Zhang YX, Li J, Zhang LL, Chen L, Jia JD, Chen CW, Zhen Z, Li BS, Niu JQ, Meng QH, Yuan H, Sun YT, Li SC, Sheng JF, Cheng J, Sun L, Wang GQ. [Clinical effect and safety of pegylated interferon-α-2b injection (Y shape, 40 kD) in treatment of HBeAg-positive chronic hepatitis B patients]. Zhonghua Gan Zang Bing Za Zhi 2019; 25:589-596. [PMID: 29056008 DOI: 10.3760/cma.j.issn.1007-3418.2017.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the clinical effect and safety of long-acting pegylated interferon-α-2b (Peg-IFN-α-2b) (Y shape, 40 kD) injection (180 μg/week) in the treatment of HBeAg-positive chronic hepatitis B (CHB) patients, with standard-dose Peg-IFN-α-2a as positive control. Methods: This study was a multicenter, randomized, open-label, and positive-controlled phase III clinical trial. Eligible HBeAg-positive CHB patients were screened out and randomized to Peg-IFN-α-2b (Y shape, 40 kD) trial group and Peg-IFN-α-2a control group at a ratio of 2:1. The course of treatment was 48 weeks and the patients were followed up for 24 weeks after drug withdrawal. Plasma samples were collected at screening, baseline, and 12, 24, 36, 48, 60, and 72 weeks for centralized detection. COBAS® Ampliprep/COBAS® TaqMan® HBV Test was used to measure HBV DNA level by quantitative real-time PCR. Electrochemiluminescence immunoassay with Elecsys kit was used to measure HBV markers (HBsAg, anti-HBs, HBeAg, anti-HBe). Adverse events were recorded in detail. The primary outcome measure was HBeAg seroconversion rate after the 24-week follow-up, and non-inferiority was also tested. The difference in HBeAg seroconversion rate after treatment between the trial group and the control group and two-sided confidence interval (CI) were calculated, and non-inferiority was demonstrated if the lower limit of 95% CI was > -10%. The t-test, chi-square test, or rank sum test was used according to the types and features of data. Results: A total of 855 HBeAg-positive CHB patients were enrolled and 820 of them received treatment (538 in the trial group and 282 in the control group). The data of the full analysis set showed that HBeAg seroconversion rate at week 72 was 27.32% in the trial group and 22.70% in the control group with a rate difference of 4.63% (95% CI -1.54% to 10.80%, P = 0.1493). The data of the per-protocol set showed that HBeAg seroconversion rate at week 72 was 30.75% in the trial group and 27.14% in the control group with a rate difference of 3.61% (95% CI -3.87% to 11.09%, P = 0.3436). 95% CI met the non-inferiority criteria, and the trial group was non-inferior to the control group. The two groups had similar incidence rates of adverse events, serious adverse events, and common adverse events. Conclusion: In Peg-IFN-α regimen for HBeAg-positive CHB patients, the new drug Peg-IFN-α-2b (Y shape, 40 kD) has comparable effect and safety to the control drug Peg-IFN-α-2a.
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Affiliation(s)
- F Q Hou
- Department of Infectious Diseases, Center for Liver Diseases, Peking University First Hospital, Beijing 100034, China
| | - Y L Yin
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - L Y Zeng
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - J Shang
- Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - G Z Gong
- The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - C Pan
- Fuzhou Infectious Disease Hospital, Fuzhou 350025, China
| | - M X Zhang
- The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - C B Yin
- Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Q Xie
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Z Peng
- Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - S J Chen
- Jinan Infectious Disease Hospital, Jinan 250021, China
| | - Q Mao
- Southeast Hospital, Third Military Medical University, Chongqing 400038, China
| | - Y P Chen
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Q G Mao
- Xiamen Hospital of T.C.M, Xiamen 361001, China
| | - D Z Zhang
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Han
- Tianjin Third Central Hospital, Tianjin 300170, China
| | - M R Wang
- 81th Hospital of People's Liberation Army, Nanjing 210002, China
| | - W Zhao
- The Second Affiliated Hospital of the Southeast University, Nanjing 210003, China
| | - J J Liu
- The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Y Han
- Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - L F Zhao
- The First Affiliated Hospital of Shanxi University, Taiyuan 030001, China
| | - G H Luo
- The First Affiliated Hospital of Guangxi Medical Universtiy, Nanning 530021, China
| | - J M Zhang
- Huashan Hospital, Shanghai 200040, China
| | - J Peng
- Nangfang Hospital, Southern Medical University, Guangzhou 510510, China
| | - D M Tan
- Xiangya Hospital Central South University, Changsha 410008, China
| | - Z W Li
- Shengjing Hospital of China Medical University, Shenyang 110022, China
| | - H Tang
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Wang
- Peking University People's Hospital, Beijing 100044, China
| | - Y X Zhang
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - J Li
- Jiangsu Provincial People's Hospital, Nanjing 210029, China
| | - L L Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang 360102, China
| | - L Chen
- Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - J D Jia
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - C W Chen
- 85th Hospital of People's Liberation Army, Shanghai 200052, China
| | - Z Zhen
- The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - B S Li
- 302 Military Hospital of China, Beijing 100039, China
| | - J Q Niu
- The First Bethune Hospital of Jilin University, Chanchun 130062, China
| | - Q H Meng
- Beijing Youan Hospital, Captial Medical University, Beijing 100069, China
| | - H Yuan
- The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y T Sun
- Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - S C Li
- The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - J F Sheng
- The First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
| | - J Cheng
- Beijing Ditan Hospital Capital Medical University, Beijing 100015, China
| | - L Sun
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - G Q Wang
- Department of Infectious Diseases, Center for Liver Diseases, Peking University First Hospital, Beijing 100034, China
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Bi K, Huang K, Zeng LY, Zhou MH, Wang QM, Wang YG, Lei M. Tunable dielectric properties of ferrite-dielectric based metamaterial. PLoS One 2015; 10:e0127331. [PMID: 25993433 PMCID: PMC4439135 DOI: 10.1371/journal.pone.0127331] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 04/14/2015] [Indexed: 11/18/2022] Open
Abstract
A ferrite-dielectric metamaterial composed of dielectric and ferrite cuboids has been investigated by experiments and simulations. By interacting with the electromagnetic wave, the Mie resonance can take place in the dielectric cuboids and the ferromagnetic precession will appear in the ferrite cuboids. The magnetic field distributions show the electric Mie resonance of the dielectric cuboids can be influenced by the ferromagnetic precession of ferrite cuboids when a certain magnetic field is applied. The effective permittivity of the metamaterial can be tuned by modifying the applied magnetic field. A good agreement between experimental and simulated results is demonstrated, which confirms that these metamaterials can be used for tunable microwave devices.
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Affiliation(s)
- K. Bi
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - K. Huang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - L. Y. Zeng
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - M. H. Zhou
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Q. M. Wang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Y. G. Wang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - M. Lei
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
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Liu J, Lu XF, Wan L, Li YP, Li SF, Zeng LY, Zeng YZ, Cheng LH, Lu YR, Cheng JQ. Suppression of human peripheral blood lymphocyte proliferation by immortalized mesenchymal stem cells derived from bone marrow of Banna Minipig inbred-line. Transplant Proc 2005; 36:3272-5. [PMID: 15686744 DOI: 10.1016/j.transproceed.2004.11.090] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [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: 02/05/2023]
Abstract
This study sought to investigate whether mesenchymal stem cells (MSC) derived from Banna Minipig Inbred-line (BMI-MSC) suppressed human peripheral blood lymphocyte (hPBLs) proliferation in a one-way mixed lymphocyte reaction system. BMI-MSC failed to stimulate proliferative responses by hPBLs, which were activated by allogenic endothelial cells, BMI-PBLs and non-specific mitogenic stimuli. Furthermore, BMI-MSC also suppressed proliferation of hPBLs stimulated by mismatched allogenic, as well as xenogenic PBLs, and the mitogenic stimulus ConA. The suppression occurred in dose-dependent fashion when the ratio of hPBLs to BMI-MSC varied from 1 to 5 fold; fewer, BMI-MSC (0.001 to 0.01 times) showed no obvious suppression. When BMI-MSC were added to hPBLs stimulated for 72 hours, the proliferative suppression was still evident. Addition of anti-FasL or anti-TGF-beta1 antibody attenuated the proliferative suppression, while antibody against IL-10 had no effect on it. Further immunofluorescence analysis demonstrated that FasL and TGF-beta1 constitutively expressed BMI-MSC. These findings suggest that BMI-MSC suppress hPBLs proliferation relying on FasL and TGF-beta1 mediated pathways.
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Affiliation(s)
- J Liu
- Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University
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