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Tang R, Xie Z, Ruan X, Zhang Z, Ren M, Wu J, Shu K, Shi H, Xie M, Lv S, Yang X, Chen R, Yu Q. Changes in menopausal symptoms comparing oral estradiol versus transdermal estradiol. Climacteric 2024; 27:171-177. [PMID: 37942806 DOI: 10.1080/13697137.2023.2273530] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/04/2023] [Indexed: 11/10/2023]
Abstract
OBJECTIVE This study aimed to compare the efficacy and safety of oral and transdermal estradiol in alleviating menopausal symptoms. METHOD A total of 257 recently menopausal women were randomized into two groups. The t-E2 group received transdermal estradiol (2.5 g per day) (n = 128) and the o-E2V group received oral estradiol valerate (2 mg per day) (n = 129) for 24 weeks; both groups received micronized progesterone (200 mg per day). The primary outcome measure is the change in the modified Kupperman Menopausal Index (KMI) after 24 weeks of treatment. Menopausal symptoms were recorded at screening and at 4, 12 and 24 weeks using both the KMI and the Menopause Rating Scale (MRS). RESULTS Significant amelioration was observed by KMI and MRS scores for both groups after treatment (p < 0.001). The mean KMI scores showed no difference between the two groups. The mean MRS scores were similar between the two groups at baseline and after 4 weeks of treatment. The results showed statistical differences after 12 weeks and 24 weeks of treatment (p = 0.005 and p = 0.011). Both the after-treatment scores minus the baseline scores of KMI and MRS and the incidence of adverse effects showed no difference between the two groups. CONCLUSIONS This study shows that both transdermal and oral estradiol are effective in relieving menopausal symptoms, with little difference in treatment efficacy and safety. CLINICAL TRIAL NUMBER ChiCTR2300073146.
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Affiliation(s)
- R Tang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Xie
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Ruan
- Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, Beijing, China
| | - Z Zhang
- Hangzhou Obstetrics and Gynecology Hospital, Hangzhou, China
| | - M Ren
- Zhongda Hospital affiliated to Southeast University, Nanjing, China
| | - J Wu
- Jiangsu Province Hospital, Jiangsu, China
| | - K Shu
- Jiangxi Maternal and Child Health Hospital, Jiangxi, China
| | - H Shi
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M Xie
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - S Lv
- The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - X Yang
- Peking University People's Hospital, Beijing, China
| | - R Chen
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Q Yu
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wu J, Sun C, Guan J, Abdullah SW, Wang X, Ren M, Qiao L, Sun S, Guo H. Nuclear ribonucleoprotein RALY downregulates foot-and-mouth disease virus replication but antagonized by viral 3C protease. Microbiol Spectr 2024; 12:e0365823. [PMID: 38323828 PMCID: PMC10913732 DOI: 10.1128/spectrum.03658-23] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/11/2024] [Indexed: 02/08/2024] Open
Abstract
The internal ribosome entry site (IRES) element constitutes a cis-acting RNA regulatory sequence that recruits the ribosomal initiation complex in a cap-independent manner, assisted by various RNA-binding proteins and IRES trans-acting factors. Foot-and-mouth disease virus (FMDV) contains a functional IRES element and takes advantage of this element to subvert host translation machinery. Our study identified a novel mechanism wherein RALY, a member of the heterogeneous nuclear ribonucleoproteins (hnRNP) family belonging to RNA-binding proteins, binds to the domain 3 of FMDV IRES via its RNA recognition motif residue. This interaction results in the downregulation of FMDV replication by inhibiting IRES-driven translation. Furthermore, our findings reveal that the inhibitory effect exerted by RALY on FMDV replication is not attributed to the FMDV IRES-mediated assembly of translation initiation complexes but rather to the impediment of 80S ribosome complex formation after binding with 40S ribosomes. Conversely, 3Cpro of FMDV counteracts RALY-mediated inhibition by the ubiquitin-proteasome pathway. Therefore, these results indicate that RALY, as a novel critical IRES-binding protein, inhibits FMDV replication by blocking the formation of 80S ribosome, providing a deeper understanding of how viruses recruit and manipulate host factors. IMPORTANCE The translation of FMDV genomic RNA driven by IRES element is a crucial step for virus infections. Many host proteins are hijacked to regulate FMDV IRES-dependent translation, but the regulatory mechanism remains unknown. Here, we report for the first time that cellular RALY specifically interacts with the IRES of FMDV and negatively regulates viral replication by blocking 80S ribosome assembly on FMDV IRES. Conversely, RALY-mediated inhibition is antagonized by the viral 3C protease by the ubiquitin-proteasome pathway. These results would facilitate further understanding of virus-host interactions and translational control during viral infection.
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Affiliation(s)
- Jin'en Wu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Chao Sun
- Division of Livestock Infectious Diseases, State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Junyong Guan
- Division of Livestock Infectious Diseases, State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Sahibzada Waheed Abdullah
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xuefei Wang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Mei Ren
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Lu Qiao
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shiqi Sun
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Huichen Guo
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- School of Animal Science, Yangtze University, Jingzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
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Chen M, Ren M, Shi Y, Liu X, Wei H. State-of-the-art polyetheretherketone three-dimensional printing and multifunctional modification for dental implants. Front Bioeng Biotechnol 2023; 11:1271629. [PMID: 37929192 PMCID: PMC10621213 DOI: 10.3389/fbioe.2023.1271629] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/05/2023] [Indexed: 11/07/2023] Open
Abstract
Polyetheretherketone (PEEK) is a high-performance thermoplastic polymer with an elastic modulus close to that of the jawbone. PEEK has the potential to become a new dental implant material for special patients due to its radiolucency, chemical stability, color similarity to teeth, and low allergy rate. However, the aromatic main chain and lack of surface charge and chemical functional groups make PEEK hydrophobic and biologically inert, which hinders subsequent protein adsorption and osteoblast adhesion and differentiation. This will be detrimental to the deposition and mineralization of apatite on the surface of PEEK and limit its clinical application. Researchers have explored different modification methods to effectively improve the biomechanical, antibacterial, immunomodulatory, angiogenic, antioxidative, osteogenic and anti-osteoclastogenic, and soft tissue adhesion properties. This review comprehensively summarizes the latest research progress in material property advantages, three-dimensional printing synthesis, and functional modification of PEEK in the fields of implant dentistry and provides solutions for existing difficulties. We confirm the broad prospects of PEEK as a dental implant material to promote the clinical conversion of PEEK-based dental implants.
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Affiliation(s)
- Meiqing Chen
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Mei Ren
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yingqi Shi
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xiuyu Liu
- Hospital of Stomatogy, Jilin University, Changchun, China
| | - Hongtao Wei
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
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Hu J, Ren M, Cai X, Lyu JJ, Shen XX, Kong YY. [Clinicopathological and prognostic features of subungual melanoma in situ]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1006-1011. [PMID: 37805391 DOI: 10.3760/cma.j.cn112151-20230226-00152] [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: 10/09/2023]
Abstract
Objective: To investigate the clinicopathological characteristics, immunohistochemical profiles, molecular features, and prognosis of subungual melanoma in situ (SMIS). Methods: Thirty cases of SMIS were collected in Fudan University Shanghai Cancer Center, Shanghai, China from 2018 to 2022. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. By using Vysis melanoma fluorescence in situ hybridization (FISH) probe kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed. Results: There were 8 males and 22 females. The patients' ages ranged from 22 to 65 years (median 48 years). All patients presented with longitudinal melanonychia involving a single digit. Thumb was the most commonly affected digit (16/30, 53.3%). 56.7% (17/30) of the cases presented with Hutchinson's sign. Microscopically, melanocytes proliferated along the dermo-epithelial junction. Hyperchromatism and nuclear pleomorphism were two of the most common histological features. The melanocyte count ranged from 30 to 185. Most cases showed small to medium nuclear enlargement (29/30, 96.7%). Pagetoid spread was seen in all cases. Intra-epithelial mitoses were identified in 56.7% (17/30) of the cases. Involvement of nailfold was found in 19 cases, 4 of which were accompanied by cutaneous adnexal extension. The positive rates of SOX10, PNL2, Melan A, HMB45, S-100, and PRAME were 100.0%, 100.0%, 96.0%, 95.0%, 76.9%, and 83.3%, respectively. FISH analysis was positive in 6/9 of the cases. Follow-up data were available in 28 patients, and all of them were alive without disease. Conclusions: SMIS mainly shows small to medium-sized cells. High melanocyte count, hyperchromatism, nuclear pleomorphism, Pagetoid spreading, intra-epithelial mitosis, nailfold involvement, and cutaneous adnexal extension are important diagnostic hallmarks. Immunohistochemistry including SOX10 and PRAME, combined with FISH analysis, is valuable for the diagnosis of SMIS.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - J J Lyu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
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Ren M, Ma K, Pang X, Liu Y, Song Z, Zhou R, Tang Z. Anti-rheumatoid arthritis effects of total saponins from Rhizoma Panacis Majoris on adjuvant-induced arthritis in rats and rheumatoid arthritis fibroblast-like synoviocytes. Phytomedicine 2023; 119:155021. [PMID: 37603974 DOI: 10.1016/j.phymed.2023.155021] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Total saponins from Rhizoma Panacis Majoris (RPMTG) showed significant antitumour activity in our previous studies. Rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) with tumour-like characteristics have received attention as a therapeutic target for RA. However, the potential effect and mechanism of action of RPMTG against RA-FLS remain unclear. OBJECTIVE The study investigated the therapeutic effect of RPMTG on adjuvant-induced arthritis (AIA) in rats, and the regulation effect and underlying mechanism on apoptosis, autophagy of RA-FLS. METHODS The therapeutic effect of RPMTG was determined by the symptoms and signs of AIA rats. The production of inflammatory cytokines was detected by ELISA. Histopathological change of the ankle and synovial tissues were detected by HE staining. Flow cytometry, Hoechst 33342/PI staining, MDC staining, and TEM were used to determine the effects of RPMTG on apoptosis and autophagy. Western blotting was applied to detect the expression levels of proteins. RESULTS In AIA rats, RPMTG treatment ameliorated paw swelling, and arthritis score, restored synovial histopathological changes, inhibited the expression of IL-6 and IL-1β, exhibiting its potent anti-arthritis effect. In vitro, RPMTG depressed the proliferation of RA-FLS, arrested cell cycle in G0/G1 phase, and induced mitochondria-mediated apoptosis. Moreover, RPMTG significantly inhibited the autophagy in vivo and in vitro, proved by decreasing the expression of autophagy-related indicators (LC3II/LC3I, Beclin-1). Mechanistically, the study demonstrated that the activation of p38 MAPK and PI3K/Akt/mTOR pathways was mainly involved in the therapeutic effects of RPMTG. Interestingly, the effect of RPMTG on apoptosis was reversed after Rapamycin treatment, which preliminarily demonstrated that the inhibitory effect of RPMTG on autophagy was beneficial to the effect on inducing apoptosis. The regulation effect of RPMTG concurrently on apoptosis and autophagy revealed its unique advantages in RA treatment. CONCLUSION RPMTG showed potent therapeutic effects on AIA rats and induced apoptosis, inhibited autophagy mainly through activating the p38 MAPK and PI3K/Akt/mTOR pathways in RA-FLS.
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Affiliation(s)
- Mei Ren
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Kang Ma
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Xiayun Pang
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Yanru Liu
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Zhongxing Song
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Rui Zhou
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China.
| | - Zhishu Tang
- China Academy of Chinese Medical Sciences, Beijing, PR China
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Li W, Yuan K, Ren M, Xie Z, Qi K, Gong X, Wang Q, Zhang S, Tao S. PbPDCB16-mediated callose deposition affects the plasmodesmata blockage and reduces lignification in pear fruit. Plant Sci 2023; 337:111876. [PMID: 37748584 DOI: 10.1016/j.plantsci.2023.111876] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/10/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
Stone cell, a type of lignified cell, is a unique trait in pear and one of the key factors affects pear fruit quality and economic value. The transmissibility of cell lignification process has been proven to exist, however the effects of callose on the permeability of plasmodesmata (PD) and how to influence cell lignification processes are still unknown. In this study, the genome-wide analysis of PD callose binding proteins (PDCB) gene family in pear genome was performed, and 25 PbPDCB genes were identified and divided into four branches. Similar intron/exon structural patterns were observed in the same branch, strongly supporting their close evolutionary relationship. The expression of PbPDCB16 was negatively correlated with lignin accumulation through qRT-PCR analysis. With transient expression in pear fruit and stable expression in pear calli, the increased callose content accompanied by decreased lignin content was further observed. Besides, compared with wild type Arabidopsis, the transgenic plants grew slowly, and cell walls in the stem were thinner, while fewer PDs were observed on the cell walls, and the interspore filaments were also blocked in transgenic Arabidopsis through the transmission electron microscope (TEM). In summary, overexpression of PbPDCB16 could promote accumulation of callose at PD to affect the PD-mediated intercellular connectivity, and inhibit the intercellular communication. This study will provide new insight in reducing the lignin content through callose deposition, and also provide the theoretical basis for further exploration of lignin metabolism and cell wall lignification to form stone cells in pear fruit.
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Affiliation(s)
- Wen Li
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaili Yuan
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Mei Ren
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhihua Xie
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaijie Qi
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin Gong
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Wang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Shaoling Zhang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; Sanya Institute of Nanjing Agricultural University, Sanya 572000, China
| | - Shutian Tao
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; Sanya Institute of Nanjing Agricultural University, Sanya 572000, China.
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Ren M, Li J, Huang M, Chen D, Li X, Yan X, An Q, Sun S. Solar-Driven Reforming of Methane and Nitrogen to Methanol and Ammonium on Iron-Modified Zeolite under Ambient Conditions in Water. Inorg Chem 2023; 62:14804-14814. [PMID: 37644618 DOI: 10.1021/acs.inorgchem.3c02393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Artificial photosynthesis from selective methane oxidation or nitrogen reduction to value-added chemicals provides a promising pathway for the sustainable chemical industry, while still remaining a great challenge due to the extreme difficulty in C-H and N≡N bond cleavage under ambient conditions. Catalysts that can cocatalyze these two reactions simultaneously are rarely reported. Here, Fe-ZSM-5 with highly dispersed extra-framework Fe-oxo species enables efficient and selective photocatalytic conversion of methane and nitrogen to coproduce methanol and ammonia using H2O as the redox reagent under ambient conditions. The optimized Fe-ZSM-5 photocatalyst achieves up to 0.88 mol/molFe·h of methanol products with 97% selectivity. Meanwhile, the productivity of ammonia is 0.61 mol/molFe·h. In situ EPR and DRIFT studies disclose that water serves as a redox reagent to provide hydroxyl radicals for methane oxidation and protons for nitrogen hydrogenation. Quantum chemical calculations revealed that Fe-oxo species play a significant role in the coactivation of methane and nitrogen molecules, which lowers the energy barriers of rate-determining steps for methanol and ammonia generation.
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Affiliation(s)
- Mei Ren
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jun Li
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Manhong Huang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
- Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Road, Shanghai 200092, China
| | - Donghui Chen
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xiaoliang Li
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiaoliang Yan
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Qi An
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Songmei Sun
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
- Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Road, Shanghai 200092, China
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Liao W, Chen G, Song L, Xu M, Li H, Wang Y, Wang X, Ye J, Ren M, Kuang X, Tang Y, Yang S, Ning X, Xie J, Yang Z, Zhang X. Temperature regulates Rab3a and mast cell-derived exosomal FcεRI to inhibit mast cell activation. Allergy 2023. [PMID: 37069491 DOI: 10.1111/all.15744] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/19/2023]
Affiliation(s)
- Wenjing Liao
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Gui Chen
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Lijuan Song
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Meiqian Xu
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Hao Li
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Yiyan Wang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Xiaofen Wang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Jinfeng Ye
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Mei Ren
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Xiaoxuan Kuang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Yaqiang Tang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Saixuan Yang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Xiaoping Ning
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jianlei Xie
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
| | - Zhaowei Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaowen Zhang
- The State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Innovation and transformation platform of upper airway disease in Guangdong province, Guangzhou, China
- Department of Otolaryngology, Head & Neck Surgery, Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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9
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Yang F, Gou JM, Yang BK, Du JY, Yao HZ, Ren M, Lin Q. Prevalence and Subtype Distribution of Blastocystis in Tibetan Sheep in Qinghai Province, Northwestern China. Protist 2023; 174:125948. [PMID: 36947937 DOI: 10.1016/j.protis.2023.125948] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 02/07/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Blastocystis is one of the most common intestinal protists in humans and a great number of animals, including sheep and goats. High prevalence and multiple subtypes of Blastocystis have been reported in sheep in several regions of China and elsewhere. However, there is a dearth of knowledge about Blastocystis in Tibetan sheep. A total of 761 fecal samples were collected from Tibetan sheep in seven counties of Qinghai Province, northwestern China, and were examined for the prevalence and subtypes of Blastocystis using molecular technology based on the partial small subunit ribosomal RNA gene of Blastocystis. The overall prevalence of Blastocystis in the investigated Tibetan sheep was 7.5% (57/761) using PCR and DNA Sanger sequencing, and differences in prevalence were observed among the ruminants from the seven counties (P < 0.01), and across four seasons (P < 0.01). Sequence analysis revealed five subtypes (ST14 (57.9%), ST10 (26.3%), ST12 (5.3%), ST21 (5.3%), and ST30 (5.3%)) of Blastocystis sp. in these Tibetan sheep, with ST14 as the predominant subtype. To our knowledge, this is the first report of Blastocystis colonization in Tibetan sheep.
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Affiliation(s)
- Fan Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China; State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, People's Republic of China
| | - Jing-Min Gou
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China; State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, People's Republic of China
| | - Bing-Ke Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - Jia-Yue Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - Hui-Zhong Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - Mei Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China; State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, People's Republic of China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China; State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, People's Republic of China; State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China.
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10
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Ni C, Huang M, Ren M, Li X, Yan X, Sun S. Effect of microstructure and reaction medium on photocatalytic performance and stability of BiO catalyst for CO2 reduction. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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11
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Yang F, Ma L, Gou JM, Yao HZ, Ren M, Yang BK, Lin Q. Seasonal distribution of Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi in Tibetan sheep in Qinghai, China. Parasit Vectors 2022; 15:394. [PMID: 36303255 PMCID: PMC9615363 DOI: 10.1186/s13071-022-05442-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/12/2022] [Indexed: 11/20/2022] Open
Abstract
Background Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi can cause important intestinal diseases in ruminants. However, data on the distribution of these three protozoan pathogens in Tibetan sheep are limited. Methods We collected 761 fecal samples from Tibetan sheep across four seasons in Qinghai Province, China, and screened the samples for Cryptosporidium spp., G. duodenalis and E. bieneusi using PCR-based sequence analysis of the genes encoding 18S ribosomal RNA, triosephosphate isomerase and the internal transcribed spacer, respectively. Results The positivity rates of Cryptosporidium spp., G. duodenalis and E. bieneusi in Tibetan sheep were 3.68% (28/761 samples), 1.58% (12/761) and 6.44% (49/761), respectively. Four species of Cryptosporidium were identified: C. xiaoi (n = 13 samples), C. ubiquitum (n = 8), C. bovis (n = 6) and C. ryanae (n = 1). Two G. duodenalis assemblages, namely the A (n = 2 samples) and E (n = 10) assemblages, were detected. Five zoonotic E. bieneusi genotypes were found: BEB6 (n = 21 samples), COS-I (n = 14), CHS3 (n = 11) and CGS1 (n = 2) from group 2, and PIGEBITS5 (n = 1) from group 1. Geographic differences in the distribution of E. bieneusi, and seasonal differences for all the three protozoan pathogens were noted. Conclusions Our results elucidate the prevalence and genetic diversity of these three pathogens in Tibetan sheep across different regions and seasons, including zoonotic pathogens such as C. ubiquitum, C. ryanae, G. duodenalis assemblage A and five genotypes of E. bieneusi. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05442-0.
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Affiliation(s)
- Fan Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Li Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Jing-Min Gou
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Hui-Zhong Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Mei Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Bing-Ke Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China. .,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.
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12
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Bai J, Liu T, Ren M, Wang X. Neobavaisoflavone improves medial collateral ligament-induced osteoarthritis through repressing the nuclear factor -κB/hypoxia-inducible factor-2α axis. J Physiol Pharmacol 2022; 73. [PMID: 36942811 DOI: 10.26402/jpp.2022.5.08] [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] [Received: 02/09/2022] [Accepted: 08/30/2022] [Indexed: 03/23/2023]
Abstract
Osteoarthritis (OA) is a chronic inflammatory joint disease. There have been some studies on the treatment of OA with traditional Chinese medicine (TCM). Neobavaisoflavone (NBIF) is an isoflavone isolated from TCM Psoralea corylifolia L (also called 'Buguzhi') and shows anti-inflammatory effects. This study aims to explore the potential role of NBIF in treating OA. The rat chondrocytes were dealt with interleukin-1beta (IL-1β) for inducing an in-vitro OA model and a rat OA model was established by medial collateral ligament resection. Followed by NBIF treatment, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometry were performed to evaluate chondrocyte proliferation and apoptosis. The expression of inflammatory factors and oxidative stress factors in chondrocyte medium and rat serum was tested by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining and Safranin O-Fast Green staining were carried out to examine the histopathological changes in knee joints. Caspase-3, nuclear factor-kappaB (NF-κB), and hypoxia-inducible factor-2alpha (HIF-2α) expressions were monitored by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), Western blot, and/or immunohistochemistry. As indicated by the results, NBIF mitigated cartilage matrix degradation and chondrocyte apoptosis in the OA rat model. NBIF hampered IL-1β-mediated cell viability inhibition, apoptosis, inflammatory reactions, and oxidative stress of chondrocytes. Moreover, NBIF suppressed NF-κB phosphorylation and HIF-2α expression. HIF-2α overexpression induced inflammation, oxidative stress, and apoptosis in chondrocytes, while NBIF reversed HIF-2α overexpression-caused chondrocyte damage. Overall, NBIF had antiapoptotic, anti-inflammatory, and antioxidative stress effects in OA models by impeding NF-κB/HIF-2α axis, suggesting that NBIF has potential therapeutic effects in OA.
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Affiliation(s)
- J Bai
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - T Liu
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - M Ren
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - X Wang
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China.
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Zhao M, Li Y, Liu Y, Bai L, Ma J, Ren M, Liu J, Shen H. Single Gold Nanostars Achieve Inherent Cascade Catalytic and Near-Infrared Photothermal Activities for Efficient Tumor Therapy. Bioconjug Chem 2022; 33:1934-1943. [DOI: 10.1021/acs.bioconjchem.2c00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Meijun Zhao
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuxuan Li
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yian Liu
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lintao Bai
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Junjie Ma
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mei Ren
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiahui Liu
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Heyun Shen
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
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14
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Tian C, Zeng L, Tang L, Yu J, Ren M. Retraction Note to: Sustained Delivery of Timolol Using Nanostructured Lipid Carriers-Laden Soft Contact Lenses. AAPS PharmSciTech 2022; 23:222. [PMID: 35962288 DOI: 10.1208/s12249-022-02382-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Chenfei Tian
- Ophthalmology Operating Room, Xi'an People's Hospital, Xi'an Fourth Hospital, Xi'an, 710004, Shaanxi, China
| | - Lu Zeng
- Ophthalmology Operating Room, Xi'an People's Hospital, Xi'an Fourth Hospital, Xi'an, 710004, Shaanxi, China
| | - Le Tang
- Nursing Department, Xi'an People's Hospital, Xi'an Fourth Hospital, Xi'an, 710004, Shaanxi, China
| | - Jingni Yu
- Glaucoma Center, Xi'an People's Hospital, Xi'an Fourth Hospital, Xi'an, 710004, Shaanxi, China
| | - Mei Ren
- Eye Surface Disease Center, Xi'an People's Hospital, Xi'an Fourth Hospital, Xi'an, 710004, Shaanxi, China.
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Liang Y, Huang X, Song Z, Yang Y, Lei J, Ren M, Tan L, Zhang H. Clinical study of ultrasonic evaluation of T/N staging of differentiated thyroid carcinoma using AJCC 8th staging criteria. PLoS One 2022; 17:e0269994. [PMID: 35709168 PMCID: PMC9202856 DOI: 10.1371/journal.pone.0269994] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/01/2022] [Indexed: 11/19/2022] Open
Abstract
Objective To explore the value of ultrasound in evaluating T/N staging of differentiated thyroid carcinoma (DTC). Methods The clinical data of 1206 patients with DTC in our hospital from January 2018 to December 2020 were retrospectively analyzed. Cervical ultrasound was performed before surgery, and the standard ultrasound images of thyroid nodules and cervical lymph nodes I to VII were retained. According to the 8th TNM staging guidelines of AJCC DTC, the T/N stages were assessed by preoperative ultrasonic data. Then, the sensitivity, specificity, negative predicted value, positive predicted value (PPV), and diagnostic value of ultrasound T/N staging were assessed using postoperative pathological staging as the reference. Results Ultrasonic T-stage had good consistency to pathological T stage in T4a and T4b tumors (kappa value>0.75), and moderate consistency to pathological T stage in T1, T2 and T3a tumors (kappa value between 0.4 and 0.75). ultrasonic T-stage had a sensitivity higher than 66%, except in T3b assessment (13/44, 29.5%, 95%CI: 16.1%-43.0%). All ultrasonic T-stage had specificity higher than 93%, except in T1b assessment (734/889, 82.6%, 95%CI: 80.1%-85.1%). The PPV of ultrasonic T1a to T4b was 94.3% (494/524), 61.0% (242/397), 54.4% (87/160), 34.3% (12/35), 20.3% (13/64), 100% (22/22) and 100% (4/4), respectively. The diagnostic accuracy values were 83% in T1a, 81% in T1b, 91% in T2, 98% in T3a, 93% in T3b, 99% in T4a and 100% in T4b. Nltrasonic N-stage had poor consistency to pathological N stage in any N stages (kappa value<0.3). The PPV of ultrasonic N0, N1, N1a and N1b was 61.0% (542/889), 55.2% (37/67), 48.2% (53/110), and 24.3% (34/140), respectively. Conclusion Ultrasound has a good consistency and high accuracy in assessing the T-stage of DTC. However, the consistency and accuracy were poor in N-staging. It has a certain reference value in reducing excessive surgical treatment of DTC.
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Affiliation(s)
- Yu Liang
- Department of Ultrasound, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Xingxiang Huang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Zhe Song
- Department of Thyroid Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yang Yang
- Department of Ultrasound, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Ju Lei
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Mei Ren
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Li Tan
- Department of Ultrasound, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- * E-mail: (LT); (HZ)
| | - Hui Zhang
- Department of Ultrasound, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- * E-mail: (LT); (HZ)
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Teng Z, Hou F, Bai M, Li J, Wang J, Wu J, Ru J, Ren M, Sun S, Guo H. Bio-mineralization of virus-like particles by metal-organic framework nanoparticles enhances the thermostability and immune responses of the vaccines. J Mater Chem B 2022; 10:2853-2864. [PMID: 35319039 DOI: 10.1039/d1tb02719k] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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
Virus-like particle (VLPs) vaccines have been extensively studied due to their good immunogenicity and safety; however, they highly rely on cold-chain storage and transportation. Nanotechnology of bio-mineralization as a useful strategy has been employed to improve the thermal stability and immunogenicity of VLPs. A zeolitic imidazole framework (ZIF-8), a core-shell structured nanocomposite, was applied to encapsulate foot-and-mouth disease virus (FMDV) VLPs. It was found that the ZIF-8 shell enhanced the heat resistance of VLPs and promoted their ability to be taken up by cells and escape from lysosomes. The VLPs-ZIF-8 easily activated antigen-presenting cells (APCs), triggered higher secretion levels of cytokines, and elicited stronger immune responses than VLPs alone even after being treated at 37 °C for 7 days. This platform has good potential in the development of VLP-based vaccine products without transportation.
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Affiliation(s)
- Zhidong Teng
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Fengping Hou
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China. .,Molecular and Cellular Epigenetics (GIGA) and Molecular Biology (Gembloux Agro-Bio Tech), University of Liège (ULg), Avenue de l'Hôpital, 11, 4000 Liège, Belgium
| | - Manyuan Bai
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Jiajun Li
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Jun Wang
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Jinen Wu
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Jiaxi Ru
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Mei Ren
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Shiqi Sun
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China.
| | - Huichen Guo
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, Gansu, P. R. China. .,School of Animal Science, Yangtze University, Jingmi Street, Jingzhou District, Jingzhou 434025, P. R. China.,Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
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Ren M, Chen LX, Shu M, Li X, Li YY, Zhong XL, Zhu Y, Guo Q, Liao Q, Wen Y, Luo SH, Wan CM. [Relationship between nutritional factors and clinical outcome in children with tuberculous meningitis]. Zhonghua Er Ke Za Zhi 2022; 60:221-226. [PMID: 35240742 DOI: 10.3760/cma.j.cn112140-20210926-00827] [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: 06/14/2023]
Abstract
Objective: To investigate the relationship between nutritional risk status and clinical outcome in children with tuberculous meningitis (TBM). Methods: The clinical data (basic information, clinical symptoms and laboratory test results) of 112 patients with TBM, who were admitted to Department of Pediatric Infectious Diseases of West China Second Hospital of Sichuan University,from January 2013 to December 2020 were retrospectively analyzed. The patients were divided into the nutritional risk group and the non-nutritional risk group according to the assessment of the nutritional risk by the STRONGkids Scale. The variables of basic information, clinical symptoms and laboratory test measurements etc. were compared between the two groups by using Student t test, Rank sum test or Chi-square test. Multivariate Logistic regression analysis were used to analyze nutritional risk factors. Results: Among 112 patient with TBM, 55 were males and 57 females. There were 62 cases in the nutritional risk group and 50 cases in the non-nutritional risk group. The proportion of cases with nutritional risk was 55.4% (62/112). Patients in the nutritional risk who lived in rural areas, had symptoms of brain nerve damage, convulsions, emaciation and anorexia, with a diagnosis time of ≥21 days, and the level of cerebrospinal fluid (CSF) protein were all higher than those in the non-nutritional risk group ((50 cases (80.6%) vs. 32 cases (64.0%), 20 cases (32.3%) vs.8 cases (16.0%), 33 cases (53.2%) vs. 15 cases (30.0%), 30 cases (48.4%) vs. 2 cases (4.0%), 59 cases (95.2%) vs. 1 case (2.0%),41 cases (66.1%) vs.18 cases (36.0%), 1 406 (1 079, 2 068) vs. 929 (683, 1 208) mg/L, χ2=3.91, 3.90, 6.10, 26.72, 98.58, 10.08, Z=4.35, all P<0.05). The levels of serum albumin,hemoglobin,lymphocyte count, white blood cell count, and CSF glucose were significantly lower in patients with nutritional risk ((36±5) vs. (41±4) g/L, (110±17) vs. (122±14) g/L, 1.4 (1.0, 2.0)vs. 2.3 (1.6, 3.8)×109/L, 7.8 (6.3, 10.0)×109 vs. 10.0 (8.3, 12.8)×109/L, 1.0 (0.8, 1.6) vs. 2.1 (1.3, 2.5) mmol/L, t=-6.15, -4.22, Z=-4.86, -3.92, -4.16, all P<0.05).Increased levels of serum albumin (OR=0.812, 95%CI:0.705-0.935, P=0.004) and lymphocyte count (OR=0.609, 95%CI:0.383-0.970, P=0.037) may reduce the nutritional risk of children with TBM; while convulsions (OR=3.853, 95%CI:1.116-13.308, P=0.033) and increased level of CSF protein (OR=1.001,95%CI:1.000-1.002, P=0.015) may increase the nutritional risk of children with TBM. Similarly, the rate of complications and drug-induced liver injury was higher in the nutritional risk group (47 cases (75.8%) vs. 15 cases(30.0%), 31 cases (50.0%) vs.8 cases (16.0%), χ2=23.50, 14.10, all P<0.05). Moreover, the length of hospital stay was also longer in the nutritional risk group ((27±13) vs. (18±7) d, t=4.38, P<0.05). Conclusions: Children with TBM have a high incidence of nutritional risk. Convulsive, the level of serum albumin, the level of lymphocyte count and CSF protein may affect the nutritional risk of children with TBM. The nutritional risk group has a high incidence of complications and heavy economic burden.It is necessary to carry out nutritional screening and nutritional support for children with TBM as early as possible.
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Affiliation(s)
- M Ren
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - L X Chen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - M Shu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Y Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X L Zhong
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Zhu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Guo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Liao
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Wen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - S H Luo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - C M Wan
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
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Song L, Li H, Wang J, Xie J, Chen G, Liang T, Wang Y, Ye L, Wang X, Kuang X, Ren M, Ye J, Tang Y, Ji K, Liao W, Zhang X. Educational attainment could be a protective factor against obstructive sleep apnea: a study based on Mendelian randomization. J Thorac Dis 2022; 14:210-215. [PMID: 35242384 PMCID: PMC8828526 DOI: 10.21037/jtd-21-945] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/17/2022] [Indexed: 11/24/2022]
Abstract
Background Causality between education and obstructive sleep apnea (OSA) is not known. Methods Genetic variants, as instrumental variables for years of education, were derived from the Social Science Genetic Association Consortium. The outcome datasets related to OSA were from the FinnGen research project (www.finngen.fi/en/). Inverse variance-weighted, weighted-median, and Mendelian randomization–Egger analysis were used to estimate causal effects. To assess the robustness and horizontal pleiotropy of significant results, leave-one-out sensitivity analysis and Mendelian randomization–Egger regression analysis were conducted. The inverse variance-weighted method was undertaken to estimate the association between years of education and other known risk factors for OSA. Analyses were conducted using the Two Sample Mendelian Randomization package of R 4·0·3. Results Genetic predisposition towards 4.2 years of additional education was associated with a 27.8% lower risk of OSA [odds ratio (OR) =0.722, 95% confidence interval (CI): 0.566–0.921; P=0.009]. Sensitivity analyses were consistent with a causal interpretation in which a major bias from genetic pleiotropy was unlikely. The Mendelian randomization assumptions did not seem to be violated. Genetic predisposition towards longer education was associated with a lower body mass index, fewer cigarettes smoked per day, and greater alcohol intake per week. Conclusions Our data indicated that education could be a protective factor against OSA. Potential mechanisms could include body mass index, tobacco smoking, and alcohol intake.
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Affiliation(s)
- Lijuan Song
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Jinan University, Guangzhou, China
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hao Li
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jia Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Junyang Xie
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Gui Chen
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Tianhao Liang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yiyan Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Liyao Ye
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaofen Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaoxuan Kuang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Mei Ren
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jinfeng Ye
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yaqian Tang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ketong Ji
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Wenjing Liao
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaowen Zhang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
- Department of Otolaryngology–Head and Neck Surgery, Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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Song JK, Wang D, Ren M, Yang F, Wang PX, Zou M, Zhao GH, Lin Q. Seasonal Prevalence and Novel Multilocus Genotypes of Giardia duodenalis in Yaks ( Bos grunniens) in Qinghai Province, Western China. Iran J Parasitol 2021; 16:548-554. [PMID: 35082882 PMCID: PMC8710206 DOI: 10.18502/ijpa.v16i4.7865] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/12/2020] [Indexed: 11/24/2022]
Abstract
Background: Giardia duodenalis is an important opportunistic zoonotic intestinal protozoon, which could parasitize yaks. However, a few studies have been conducted on the seasonal infection of G. duodenalis in yaks in China. Methods: Overall, 1,027 fecal samples were collected from yaks of two age groups in seven cities of Qinghai Province, China at four seasons between May 2016 and Sep 2017. The prevalence and assemblages were analyzed by nested PCR and multilocus sequence typing (MLST). Results: The overall prevalence of G. duodenalis was 2.04% (21/1027) based on triose phosphate isomease (tpi) locus. No significant differences in prevalence of the organism in yaks were found among different sampling areas. Additionally, same result was also presented in different seasons. However, there was statistically significant difference between young yaks within 6 months (8.33%, 4/48) and adult yaks over 6 months (1.73%, 17/979). The assemblage A recognized as a zoonotic assemblage (n=3) was found in yaks (>6 months) from Xining, while assemblage E (n=18) was detected from yaks in six cities. There were 5, 2 and 3 G. duodenalis subtypes detected positive at the tpi, the β-giardin (bg), and the glutamate dehydrogenase (gdh) loci, with 2, 2 and 3 novel subtypes, respectively. Three samples were successfully sequenced at all three loci, forming 1 assemblages A multilocus genotype (MLG) and 2 assemblages E MLGs, not reported. Conclusion: This study indicated a zoonotic potential of G. duodenalis in yaks from Qinghai Province and provides basic information about the epidemiology of G. duodenalis.
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Affiliation(s)
- Jun-Ke Song
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China.,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China
| | - Dan Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mei Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Fan Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Pin-Xue Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Min Zou
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Guang-Hui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, China.,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China
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Ren M, Ruan X, Gu L, Pexman-Fieth C, Kahler E, Yu Q. Ultra-low-dose estradiol and dydrogesterone: a phase III study for vasomotor symptoms in China. Climacteric 2021; 25:286-292. [PMID: 34402360 DOI: 10.1080/13697137.2021.1956894] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE This study aimed to evaluate the efficacy and safety of ultra-low-dose estradiol plus dydrogesterone for vasomotor symptoms in postmenopausal women in China (trial registration CTR20160689). METHODS A total of 332 patients were randomized to continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg or placebo for 12 weeks. The primary efficacy endpoint was change in the number of hot flushes per day from baseline to end of treatment. Secondary efficacy endpoints included change in the number of moderate-to-severe hot flushes per day, menopausal symptoms from baseline and quality of life. RESULTS Between baseline and end of treatment, change in the mean number of hot flushes per day was -5.9 (95% confidence interval [CI] - 6.6, -5.2) with estradiol + dydrogesterone and -4.5 (95% CI -5.1, -3.8) with placebo, with a mean difference of -1.4 hot flushes per day (95% CI -2.2, -0.7; p < 0.001). Significant differences in favor of estradiol + dydrogesterone were also observed in several secondary efficacy endpoints. The study treatment was well tolerated. CONCLUSION Continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg reduced hot flushes in postmenopausal women in China. This ultra-low-dose regimen provides an additional option for women experiencing the vasomotor symptoms of menopause. These data are consistent with previous results in other populations.
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Affiliation(s)
- M Ren
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast University, Nanjing, People's Republic of China
| | - X Ruan
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, People's Republic of China
| | - L Gu
- Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing, People's Republic of China
| | - C Pexman-Fieth
- Global Clinical Development, Established Pharmaceuticals Division, Abbott GmbH, Wiesbaden, Germany
| | - E Kahler
- Global Biometrics, Established Pharmaceuticals Division, Abbott Laboratories GmbH, Hannover, Germany
| | - Q Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, People's Republic of China
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Guo M, Li J, Teng Z, Ren M, Dong H, Zhang Y, Ru J, Du P, Sun S, Guo H. Four Simple Biomimetic Mineralization Methods to Improve the Thermostability and Immunogenicity of Virus-like Particles as a Vaccine against Foot-and-Mouth Disease. Vaccines (Basel) 2021; 9:vaccines9080891. [PMID: 34452016 PMCID: PMC8402440 DOI: 10.3390/vaccines9080891] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022] Open
Abstract
The need for a cold chain system during storage and transport substantially increases the cost of vaccines. Virus-like particles (VLPs) are among the best countermeasures against foot and mouth disease virus (FMDV). However, VLPs are composed of pure proteins, and thus, are susceptible to heat. To address this problem, four simple biomimetic mineralization methods with the use of calcium phosphate were developed to improve heat tolerance via biomineralization. The results showed that biomineralization can significantly improve the heat resistance of VLPs. The biomineralized VLPs can be stored at low as 25 °C for eight days, and 37 °C for four days. Animal experiments showed that biomineralization had no effect on the immunogenicity of VLPs or the expression of specific antibodies (Abs) and neutralizing Abs. Even after heat treatment at 37 °C for four days, the biomineralized VLPs remained immunogenic and produced highly specific and neutralizing Abs with a high rate of protection. These results suggest that these biomineralization approaches can promote the thermal stability of VLPs against and significantly reduce dependence on cold storage and delivery systems.
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Affiliation(s)
- Mengnan Guo
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Jiajun Li
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Zhidong Teng
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Mei Ren
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Hu Dong
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Yun Zhang
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Jiaxi Ru
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Ping Du
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
| | - Shiqi Sun
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Huichen Guo
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730030, China; (M.G.); (J.L.); (Z.T.); (M.R.); (H.D.); (Y.Z.); (J.R.); (P.D.); (S.S.)
- College of Animal Science, Yangtze University, Jingzhou 434025, China
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming 650000, China
- Correspondence:
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Tian C, Zeng L, Tang L, Yu J, Ren M. Sustained Delivery of Timolol Using Nanostructured Lipid Carriers-Laden Soft Contact Lenses. AAPS PharmSciTech 2021; 22:212. [PMID: 34378099 DOI: 10.1208/s12249-021-02096-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/13/2021] [Indexed: 11/30/2022] Open
Abstract
The contact lens prepared by the conventional soaking method using timolol-soaking solution showed poor drug uptake and high burst release with altered critical lens properties. In this study, timolol-loaded nanostructured lipid carriers (NLCs) were prepared and evaluated for enhanced timolol uptake and sustained release for the effective management of glaucoma. The characterization studies indicated that timolol-loaded NLCs were spherical in shape with an average size of 130-138 nm and a zeta potential of -46.6 to 51.3 mV. Critical lens properties such as swelling, optical transmittance, and protein adherence were improved with NLC-laden lenses compared to the conventional soaked lenses (SM-TB). Moreover, SM-TB lens showed low timolol uptake, high burst release, and short release duration up to 24 h compared to timolol-NLC-laden lens that showed high timolol uptake, and the cumulative release was sustained up to 96 h. The ability to sustain timolol release improved proportionally with an increase in the amount of Capmul MCMC8 (liquid lipid) in NLCs. In addition, NLC-laden lens was found to be safe according to the results of ocular irritation and histopathological studies. In the rabbit tear fluid model, NLC-30%-Cap-CL batch showed high timolol concentration at all time points up to 60 h. Further, pharmacodynamic study showed sustained reduction in IOP by NLC-30%-Cap-CL batch for 96 h compared to 48 h and 6 h with SM-TB lens and eye drop solution, respectively. In conclusion, NLCs enhanced timolol uptake in the contact lens from the soaking solution using soaking method with improved in vitro and in vivo results for better clinical outcomes in the patients with glaucoma.
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Huynh J, Cho M, Kim E, Ren M, Amaya-Chanaga C, Vogel A. P-78 Post hoc analysis in patients with unresectable hepatocellular carcinoma who progressed to Child-Pugh B liver function in the phase 3 REFLECT study of lenvatinib vs sorafenib. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Ren M, Sidiropoulou E, Tasakis RN, Donato E, Gonzalez‐Menendez I, Busse CE, Luck TJ, Dolnik A, Bullinger L, Trumpp A, Quintanilla‐Martinez L, Kreuz M, Chapuy B, Hübschmann D, Siebert R, Papavasiliou FN, Sander S. CYTIDINE DEAMINASES SHAPE THE GENOME OF GERMINAL CENTER B CELL DERIVED LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.18_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Ren
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - E. Sidiropoulou
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - R. N. Tasakis
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - E. Donato
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - I. Gonzalez‐Menendez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - C. E Busse
- German Cancer Research Center (DKFZ) Division of B cell Immunology Heidelberg Germany
| | - T. J Luck
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Dolnik
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - L. Bullinger
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Trumpp
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - L. Quintanilla‐Martinez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - M. Kreuz
- Universität Leipzig Institute for Medical Informatics Statistics and Epidemiology (IMISE) Leipzig Germany
| | - B. Chapuy
- University Medical Center Göttingen Department of Hematology and Medical Oncology Göttingen Germany
| | - D. Hübschmann
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH) Heidelberg Germany
| | - R. Siebert
- Ulm University and Ulm University Medical Center Department of Human Genetics Ulm Germany
| | - F N. Papavasiliou
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - S. Sander
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
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Hu J, Ren M, Cai X, Shen XX, Dai B, Kong YY. [Clinicopathological features and prognosis of nodal nevi]. Zhonghua Bing Li Xue Za Zhi 2021; 50:494-499. [PMID: 33915657 DOI: 10.3760/cma.j.cn112151-20200817-00648] [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: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics, differential diagnosis and prognosis of nodal nevi (NN). Methods: Eighteen cases of NN diagnosed at Fudan University Shanghai Cancer Center, Shanghai, China from 2009 to 2019 were collected. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. The Vysis Melanoma FISH Probe Kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed in 2 cases. Results: There were 2 males and 16 females in the case series. The age of the patients ranged from 36 to 70 years (average 48.2 years). Fifteen cases located in axillary lymph nodes, 1 in inguinal lymph node, 1 in cervical lymph node, and 1 in external iliac lymph node. NN was found in only one lymph node in each case. Histologically, the nevus cell aggregates were found in capsule of lymph nodes in all cases. Nevus cells grew along the capsule into trabeculae in 8 cases, with 3 of them scattered in parenchyma. In one of these 8 cases, nevus cell aggregates massively occupied the parenchyma of the lymph node. The largest lesions in the 18 NN cases measured from 0.2 to 6.5 mm. All of the NN cases were classified as conventional nevi. The majority of the cases were composed of uniform nevus-like cells and identical to cutaneous pigmented nevi without atypia, necrosis, or mitosis. In the NN case that massively occupied parenchyma, some areas had abundant nevus cells and displayed atypical cytologic features, including increased nucleo-cytoplasmic ratio, small nucleoli, and occasional mitotic figures. Immunohistochemistry was performed in 13 cases. All of them were positive for S-100, SOX10, Melan A, and p16. HMB45 showed weak staining in rare cells of only one case out of 13 cases. Ki-67 labeling index <1% was found in all 13 cases. Additionally, the results of FISH assay were both negative. All patients were followed up for 13 to 129 months (median 31.5 months). Except that one patient died of the salivary gland carcinoma, the other patients all survived without tumor during the follow-up period. Conclusions: NN is a benign melanocytic lesion in lymph node. It is important to distinguish NN from metastatic melanoma when nevus cells occur in parenchyma and subcapsular sinus of lymph nodes, or show some atypical cytologic features. The morphology of bland nevus cells in capsule and trabeculae is a valuable clue. Besides, immunohistochemical profiling and FISH assay are helpful in the differential diagnosis.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - B Dai
- Department of Urology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
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Zhang ZC, Hu J, Kong YY, Ren M, Cai X. [Application of immunohistochemical staining of bcl-2, Ber-EP4, CD10, CK20, and Ki-67 in differential diagnosis between trichoblastoma and basal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:376-381. [PMID: 33831998 DOI: 10.3760/cma.j.cn112151-20200722-00587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the utility of immunohistochemistry (IHC) in differential diagnosis between trichoblastoma (TB) and basal cell carcinoma (BCC). Methods: Fifty-eight cases of TB and 40 cases of BCC were collected at Fudan University Shanghai Cancer Center from January 2009 to December 2019 and retrospectively analyzed by IHC for bcl-2, Ber-EP4, CD10, CK20 and Ki-67. Fisher exact test was performed for statistical analysis. Results: Twenty-five (43.1%) TBs and 5 (12.5%) BCCs showed bcl-2 staining in the outermost layer of the epithelial nests, the difference was statistically significant (P<0.01). The proportion of cases with bcl-2 staining>75% of epithelial cells in BCC group was much higher than that in TB group (40% vs. 12.1%; P<0.01). BCC group showed larger proportions with Ber-EP4 staining>75%, 51%-75% of epithelial cells than TB group (12.5% vs. 1.7%, 37.5% vs. 8.6%;P<0.05). Fifty-five (94.8%) TBs demonstrated CD10 expression in the follicular stroma, while only 16 (40.0%) BCCs showed focal or scattered CD10 expression in reactive fibrous stroma (P<0.01). CK20 expression was present in 37 (63.8%) TBs with scattered pattern, but BCCs exhibited no CK20 staining except for only one case (2.5%) showing focal staining (P<0.01). Compared with TB group, the BCC group included more cases with Ki-67 labeling index ≥15% on average and ≥25% in hotspot areas (P<0.05). Conclusion: IHC is helpful in differential diagnosis between TB and BCC. Scattered CK20 staining pattern and stromal CD10 expression support the diagnosis of TB. Bcl-2 staining limited to the outermost layer of the proliferation is more likely to be found in TB. In contrast, Ber-EP4 positivity and higher Ki-67 labeling index tend to be present in BCC.
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Affiliation(s)
- Z C Zhang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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Bai L, Wang M, Zhang L, Zhao M, Ren M, Zheng L, Lei M, Shen H. Poly(Amino Acid) Coordination Nanoparticle as a Potent Sonosensitizer for Cancer Therapy. ACS Appl Bio Mater 2021. [DOI: 10.1021/acsabm.0c01383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lintao Bai
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Mingkun Wang
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lin Zhang
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Meijun Zhao
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Mei Ren
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Heyun Shen
- State Key Laboratory of Organic−Inorganic Composites, Beijing Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Yin WZ, Yang QW, Niu K, Ren M, He D, Song WZ. Validation of reference genes for the normalization of RT-qPCR expression studies on human laryngeal cancer and hypopharyngeal cancer. Eur Rev Med Pharmacol Sci 2020; 23:4199-4209. [PMID: 31173291 DOI: 10.26355/eurrev_201905_17924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Selecting stably expressed reference genes is crucial for evaluating real-time quantitative polymerase chain reaction (RT-qPCR) data via the relative quantification method. In the present-day study, our aim was to select optimal reference genes (RGs) for the investigation of target gene (TG) expression profiling in cancerous human laryngeal and hypopharyngeal tissues. PATIENTS AND METHODS 12 cancerous laryngeal tissues and 10 cancerous hypopharyngeal tissues were investigated. The expression characteristics of 11 reference genes (18S rRNA, GAPDH, B2M, ACTB, TBP, ALAS1, RPL29, HMBS, HPRT1, GUSB, and PUM1), which were commonly used in RT-qPCR for the analysis of gene expression, were investigated using the geNorm, NormFinder, and BestKeeper algorithm programs. RESULTS HMBS, ALAS1, and B2M were suggested as optimal RGs for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself, respectively. If 2 or more reference genes are needed to achieve better standardization, 3 reference genes can optimally be used in combination to improve the accuracy of relative quantitation normalization. The recommended combinations for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself were HMBS + HPRT1 + GUSB, ALAS1 + GUSB + HMBS, and B2M + HPRT1 + TBP, respectively. CONCLUSIONS The recommended reference genes could be used to improve the accuracy of gene expression studies on the molecular mechanisms of cancerous human laryngeal and hypopharyngeal tissues. The selected combination of reference genes can effectively improve the accuracy of the relative quantitative diagnosis of gene expression levels, such as messenger RNA, circular RNA, and long-noncoding RNA.
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Affiliation(s)
- W-Z Yin
- Department of Otorhinolaryngology, Head and Neck Surgery, First Clinical Hospital, Jilin University, Changchun, China.
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Lee CH, Adachi Y, Ikezawa H, Li S, Funahashi Y, Minoshima Y, Kubiak P, Perini R, Ren M, Smith A, Motzer R. 719P Correlative serum biomarker analyses: Lenvatinib (LEN) plus pembrolizumab (PEMBRO) in a phase Ib/II trial in advanced renal cell carcinoma (RCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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30
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Zeng Y, Ren M, Li Y, Liu Y, Chen C, Su J, Su B, Xia H, Liu F, Jiang H, Ling H, Zeng X, Su Q. Knockdown of RhoGDI2 represses human gastric cancer cell proliferation, invasion and drug resistance via the Rac1/Pak1/LIMK1 pathway. Cancer Lett 2020; 492:136-146. [PMID: 32860848 DOI: 10.1016/j.canlet.2020.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 03/04/2020] [Revised: 07/03/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023]
Abstract
Gastric cancer (GC) is the fifth most common primary malignancy in humans. Rho GDP dissociation inhibitor 2 (RhoGDI2) is overexpressed in multiple cancer types, but the role of RhoGDI2 in GC has not been elucidated. This study aims to determine the level of RhoGDI2 in GC and to confirm the effect of its inhibition or overexpression on GC cell migration, invasion and chemosensitivity. RhoGDI2 level is significantly enhanced in human GC tissue samples in comparison with normal gastric epithelium and corresponding para-cancerous samples. The expression of RhoGDI2 is correlated with clinicopathological parameters and prognosis. Transfection in combination with miRNA targeting of RhoGDI2 in GC cell lines remarkably downregulates GC cell migration and invasion and reduces the mRNA levels of Rac1, Pak1 and LIMK1. The inhibition of RhoGDI2 downregulates GC cell migration and invasion by attenuating the EMT cascade via the Rac1/Pak1/LIMK1 pathway. Knockdown of RhoGDI2 is a potential therapeutic strategy for GC.
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Affiliation(s)
- Ying Zeng
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China; School of Nursing, University of South China, China
| | - Mei Ren
- Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China
| | - Yukun Li
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China
| | - Yanli Liu
- Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China
| | - Cong Chen
- Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China
| | - Jian Su
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China; Department of Pathology, Second Affiliated Hospital, University of South China, China
| | - Bo Su
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China; Key Laboratory for Pharmacoproteomics of Hunan Provincial University, Institute of Pharmacy and Pharmacology, University of South China, China
| | - Hong Xia
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China
| | - Fang Liu
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China
| | - Hao Jiang
- Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China
| | - Hui Ling
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China
| | - Xi Zeng
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China; Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China.
| | - Qi Su
- Hunan Province Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute, University of South China, China; Center for Gastric Cancer Research of Hunan Province, First Affiliated Hospital, University of South China, China.
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Chen J, Liu S, Tang Y, Zhang X, Cao M, Xiao Z, Ren M, Chen T. Diagnostic performance of CT for differentiating peritoneal tuberculosis from peritoneal carcinomatosis: a systematic review and meta-analysis. Clin Radiol 2020; 75:396.e7-396.e14. [PMID: 32081347 DOI: 10.1016/j.crad.2019.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/12/2019] [Indexed: 01/01/2023]
Abstract
AIM To undertake a systematic review and meta-analysis of the diagnostic performance of CT for differentiating peritoneal tuberculosis (PTB) from peritoneal carcinomatosis (PC). MATERIAL AND METHODS PubMed, Embase, the Web of Science, and the Cochrane Library were searched for papers published before 23 July 2019. The methodological quality of the studies was analysed. Overlapping descriptors used in different studies to denote the same image finding were subsumed under a single CT feature. Sensitivity, specificity, and positive and negative likelihood ratios were pooled. A summary receiver operating characteristic curve (sROC) was constructed and the area under the curve (AUC) of the included studies was calculated when possible. RESULTS Six studies were included and 17 CT features were analysed. The pooled sensitivity and specificity of smooth peritoneal thickening were 59% (95% CI: 52-66%) and 84% (95% CI: 79-88%), respectively. The AUC of smooth peritoneal thickening was 0.83. Omentum line/rim, lymph node necrosis or calcification, and mesenteric macro nodules had a pooled specificity ranging from 95% to 100% and a pooled sensitivity ranging from 12% to 67%. The other 12 signs had a pooled sensitivity ranging from 21% to 79% and a pooled specificity ranging from 19% to 81%. Omentum involvement (cake-like pattern) showed a threshold-effect, so only the AUC (=0.70) was calculated. CONCLUSIONS Smooth peritoneal thickening shows fairly good diagnostic accuracy, while omentum rim/line, lymph nodes necrosis or calcification, mesenteric macro nodules have good specificity but limited sensitivity. The informative features summarised in this study may aid clinical practice and future studies.
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Affiliation(s)
- J Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China.
| | - S Liu
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Y Tang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - X Zhang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Cao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Z Xiao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Ren
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - T Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
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Liu Z, Hu G, Zhao Y, Xiao Z, Yan M, Ren M. Silence of cZNF292 suppresses the growth, migration, and invasion of human esophageal cancer Eca-109 cells via upregulating miR-206. J Cell Biochem 2019; 121:2354-2362. [PMID: 31680303 DOI: 10.1002/jcb.29458] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 07/02/2019] [Accepted: 10/10/2019] [Indexed: 12/16/2022]
Abstract
Circular RNA (circRNA) cZNF292 has been previously revealed as a circular oncogenic RNA. This study attempted to illustrate the functions of cZNF292 in human esophageal carcinoma Eca-109 cells. Eca-109 cells were transfected with the short hairpin RNA specific against cZNF292 (sh-cZNF292) and/or miR-206 inhibitor. cZNF292 and miR-206 expression was examined by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Cell counting kit-8 and flow cytometry were performed for detecting cell growth including cell viability as well as apoptosis. Various kinds of factors, which are involved in cell development including proliferation, apoptosis, migration, and invasion were determined by western blot analysis. Besides, the activation of AMP-activated protein kinase (AMPK) and PI3K/AKT signaling was measured by western blot analysis. It was found that cZNF292 silencing decreased Eca-109 cell viability and induced apoptosis. In the meantime, cZNF292 silencing inhibited cell migration and invasion. cZNF292 silencing upregulated miR-206 expression. And miR-206 downregulation impaired the suppressive effects of cZNF292 silence toward Eca-109 cell growth, migration, and invasion. cZNF292 silencing activated AMPK signaling and inactivated PI3K/AKT signaling also via regulating miR-206. In conclusion, silencing of cZNF292 abated growth, migration, and invasion of Eca-109 cells by upregulating miR-206, which subsequently modulated AMPK and PI3K/AKT signaling pathways.
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Affiliation(s)
- Zengjia Liu
- Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, Shandong, China
- Forensic Science Center of Jining Medical University, Jining, Shandong, China
| | - Guiju Hu
- PICC Catheterization and Maintenance Clinic, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Yan Zhao
- Department of Pain Treatment, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Zuorun Xiao
- Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, Shandong, China
| | - Mingzhe Yan
- Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, Shandong, China
| | - Mei Ren
- Department of Oncology, Jining No. 1 People's Hospital, Jining, Shandong, China
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Tahara M, Kiyota N, Hoff A, Badiu C, Owonikoko T, Dutcus C, Suzuki T, Ren M, Misir S, Wirth L. Impact of lung metastasis on overall survival (OS) in the phase III SELECT study with lenvatinib (LEN) in patients (pts) with radioiodine refractory differentiated thyroid cancer (RR-DTC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ren M, Xu W, Xu T. Salidroside represses proliferation, migration and invasion of human lung cancer cells through AKT and MEK/ERK signal pathway. Artif Cells Nanomed Biotechnol 2019; 47:1014-1021. [PMID: 30880481 DOI: 10.1080/21691401.2019.1584566] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Salidroside, a glycoside of tyrosol, is isolated from Rhodiola rosea and shows anti-cancer functions in several cancers. However, the potentials of salidroside in the migration and invasion of lung cancer cells and its underlying mechanisms remain unknown. We aimed to investigate the functions and mechanisms of salidroside in non-small cell lung cancer (NSCLC). Human NSCLC cell line A549 was treated with different doses of salidroside. Cell viability, colony formation, apoptosis, migration and invasion were detected by CCK-8, crystal violet-staining assay, flow cytometry and transwell assay, respectively. qRT-PCR and western blot analysis were performed to assess the regulatory effects of salidroside on miR-195 expression and the activation of AKT and the MEK/ERK signal pathway. We found that, salidroside remarkably reduced cell viability, colony formation and Cyclin D1 expression, but increased p21 expression and apoptosis in A549 cells. Additionally, salidroside inhibited the migration and invasion of A549 cells by regulating expressions of migration- and invasion-related proteins. Finally, salidroside inhibited phosphorylation of AKT, MEK and ERK by upregulating miR-195 expression in A549 cells. In conclusion, salidroside inhibited the survival, migration and invasion of NSCLC cells. Salidroside blocked AKT and the MEK/ERK signal pathway by upregulating miR-195 expression in A549 cells.
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Affiliation(s)
- Mei Ren
- a Department of Oncology , Jining No.1 People's Hospital , Jining , China
| | - Wenjing Xu
- b Department of Chinese Medicine , Jining No.1 People's Hospital , Jining , China
| | - Tao Xu
- c Department of Respiratory Medicine , The Affiliated Hospital of Qingdao University , Qingdao , China
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Reich K, Blauvelt A, Armstrong A, Langley R, de Vera A, Kolbinger F, Spindeldreher S, Ren M, Bruin G. Secukinumab, a fully human anti‐interleukin‐17A monoclonal antibody, exhibits low immunogenicity in psoriasis patients treated up to 5 years. J Eur Acad Dermatol Venereol 2019; 33:1733-1741. [DOI: 10.1111/jdv.15637] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/01/2019] [Indexed: 01/11/2023]
Affiliation(s)
- K. Reich
- Translational Research in Inflammatory Skin Diseases Institute for Health Services Research in Dermatology and Nursing University Medical Center Hamburg‐Eppendorf Hamburg Germany
- Skinflammation® Center Hamburg Germany
- Dermatologikum Berlin BerlinGermany
| | - A. Blauvelt
- Oregon Medical Research Center Portland OR USA
| | - A. Armstrong
- Keck School of Medicine University of Southern California Los Angeles CA USA
| | - R.G. Langley
- Division of Clinical Dermatology and Cutaneous Science Dalhousie University Halifax Nova Scotia Canada
| | | | - F. Kolbinger
- Novartis Institutes for Biomedical Research Basel Switzerland
| | | | - M. Ren
- China Novartis Institutes for Biomedical Research Shanghai China
| | - G. Bruin
- Novartis Institutes for Biomedical Research Basel Switzerland
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Feng Z, Chen Q, Ren M, Tian Z, Gong Y. CD40L inhibits cell growth of THP-1 cells by suppressing the PI3K/Akt pathway [Corrigendum]. Onco Targets Ther 2019; 12:4223. [PMID: 31213840 PMCID: PMC6549415 DOI: 10.2147/ott.s213952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 11/23/2022] Open
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Zhou Z, Fang Q, Li P, Ma D, Zhe N, Ren M, Chen B, He Z, Wang J, Zhong Q, Wang J. Entinostat combined with Fludarabine synergistically enhances the induction of apoptosis in TP53 mutated CLL cells via the HDAC1/HO-1 pathway. Life Sci 2019; 232:116583. [PMID: 31226417 DOI: 10.1016/j.lfs.2019.116583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 02/23/2019] [Revised: 05/28/2019] [Accepted: 06/17/2019] [Indexed: 02/02/2023]
Abstract
TP53 mutation is an indicator of poor prognostic in chronic lymphocytic leukemia (CLL). Worse still, CLL patients with TP53 mutation are associated with poor efficacy to current chemotherapeutic, such as Fludarabine. Here, we confirmed that high expression of HDAC1 in CLL patients with TP53 mutation, which is closely related to poor prognosis and drug-resistance. Subsequently, we demonstrated Entinostat (HDAC1 inhibitor) combination with Fludarabine significantly induced apoptosis in TP53 mutations CLL cells. Its mechanism was associated with up-regulation of the pro-apoptotic protein Bax and the down-regulation of HDAC1, HO-1 and BCL-2 proteins. More importantly, we also confirmed that upregulation of HDAC1 could resistant Entinostat-induced apoptosis in TP53 mutations CLL cells by activating the HDAC1/P38/HO-1 pathway. In vivo, we found that Entinostat combination with Fludarabine significantly induced tumor cells apoptosis and prolong survival time in xenograft mouse model. Finally, combining vitro and vivo experiments, we presented the first demonstration that Entinostat combination with Fludarabine had a synergistic effect on the induction of apoptosis in TP53 mutations CLL cells. In conclusion, we provide valuable pre-clinical experimental evidence for the treatment of CLL patients with poor prognosis, especially for TP53 mutations.
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Affiliation(s)
- Zhen Zhou
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Department of Pharmacy, Affiliated Baiyun Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China
| | - Qin Fang
- Department of Pharmacy, Affiliated Baiyun Hospital of Guizhou Medical University, Guiyang 550004, China; Department of Pharmacy, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Peifan Li
- Clinical Research Centre, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Dan Ma
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China; Department of Hematology, Guizhou Provincial Laboratory of Hematopoietic Stem Cell Transplantation Center, Guiyang 550004, China
| | - Nana Zhe
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China; Department of Hematology, Guizhou Provincial Laboratory of Hematopoietic Stem Cell Transplantation Center, Guiyang 550004, China
| | - Mei Ren
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China; Department of Hematology, Guizhou Provincial Laboratory of Hematopoietic Stem Cell Transplantation Center, Guiyang 550004, China
| | - Bingqing Chen
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China; Department of Hematology, Guizhou Provincial Laboratory of Hematopoietic Stem Cell Transplantation Center, Guiyang 550004, China
| | - Zhengchang He
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China
| | - Jun Wang
- Clinical Research Centre, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Qin Zhong
- Clinical Research Centre, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Jishi Wang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China; Key Laboratory of Hematological Disease Diagnostic and Treat Centre of Guizhou Province, Guiyang 550004, China; Department of Hematology, Guizhou Provincial Laboratory of Hematopoietic Stem Cell Transplantation Center, Guiyang 550004, China.
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Ren M, Song JK, Yang F, Zou M, Wang PX, Wang D, Zhang HJ, Zhao GH, Lin Q. First genotyping of Blastocystis in yaks from Qinghai Province, northwestern China. Parasit Vectors 2019; 12:171. [PMID: 30992082 PMCID: PMC6469144 DOI: 10.1186/s13071-019-3436-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 11/06/2018] [Accepted: 04/05/2019] [Indexed: 11/10/2022] Open
Abstract
Background Blastocystis is a common protist that can infect domestic and wild animals worldwide. Yak (Bos grunniens), an ancient species which can survive in alpine regions, has supplied necessities to local residents in plateau areas for generations. However, the infections with Blastocystis in yaks has been ignored for a long time. In the present study, the infections and genotypes of Blastocystis spp. in domestic yaks from Qinghai Province (northwestern China) were explored. Results Of 1027 faecal samples collected from yaks in seven regions of Qinghai Province, northwestern China, the total prevalence of Blastocystis was 27.07% (278/1027) targeting the small subunit ribosome rRNA (SSU rRNA) gene. This protist was detected in yaks within each examined age group, geographical origin and season. Significant difference in prevalence was found in yaks from different geographical origins. The highest prevalence (48.94%) was observed in animals from Haixi county. Sequence analysis revealed three animal-specific subtypes (ST10, ST12 and ST14) of Blastocystis spp. in these yaks, with ST10 being the predominant subtype widely distributed in all investigated regions, seasons and age groups. Interestingly, this is the first report about subtype ST12 infecting yaks. Conclusions To our knowledge, this is the first systematic report on Blastocystis prevalence in yaks from China, and the findings provide fundamental data for establishing effective control measures for this protist in yaks as well as other animals in China.
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Affiliation(s)
- Mei Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai, 810016, People's Republic of China
| | - Jun-Ke Song
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Fan Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Min Zou
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Pin-Xue Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Dan Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Hui-Jun Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Guang-Hui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China. .,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai, 810016, People's Republic of China.
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks ( Bos grunniens) of Qinghai Province, China. J Parasitol 2019; 105:195-198. [PMID: 30835169] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
The frequency of Cryptosporidium infection in yaks from Qinghai province, People's Republic of China, was determined from examination of 1,027 fecal samples collected from 979 adult yaks and 48 yak calves during 4 seasons from 7 geographic areas within the province. PCR amplification of extracted DNA was used to characterize the different species of Cryptosporidium oocysts isolated by fecal examination. Twenty-six (2.53%) positive samples were identified and successfully sequenced: 17 Cryptosporidium ryanae (65.38%), 8 Cryptosporidium bovis (30.77%), and 1 Cryptosporidium baileyi (3.85%). The results of the study indicate that autumn is the primary season for transmission of Cryptosporidium to susceptible yak calves given the favorable temperatures and higher altitude of Qinghai province. To our knowledge, C. baileyi, a species predominately associated with birds (avian hosts), is described for the first time in yaks.
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Affiliation(s)
- M Ren
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - F Wu
- 3 College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D Wang
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L Y Li
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J J Chang
- 4 College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q Lin
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
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Ren J, Ren M, Kong YY, Cai X, Kong JC. [Clinicopathological features and prognosis of ALK-positive Spitz tumors]. Zhonghua Bing Li Xue Za Zhi 2019; 48:215-219. [PMID: 30831648 DOI: 10.3760/cma.j.issn.0529-5807.2019.03.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathologic features and prognosis of ALK-positive Spitz tumors. Methods: Thirteen patients with ALK-positive Spitz tumors diagnosed at Shanghai Cancer Center, Fudan University from October 2016 to December 2017 were collected. All cases were routinely evaluated histopathological features in HE staining and detected ALK protein expression by immunohistochemistry. The ALK fusions of 7 cases were confirmed by fluorescence in situ hybridization (FISH).Follow-up data was collected. Results: The age of patients including 2 males and 11 females ranged from 4 to 47 years (mean 25 years). 12 patients were diagnosed with atypical Spitz tumors and 1 patient was diagnosed with Spitz nevus. Clinically, most lesions presented as papules or nodules, while a few lesions presented as plaques. Histologically, most tumors were exophytic (9/13). More than half of the tumors were amelanotic and the junctional component was mainly composed of melanocytic nests. Kamino bodies were not found. The bases of the tumors were mainly wedge-shaped (5/13) and flat (7/13). Eight tumors displayed mixed cell types, while 5 tumors were composed of only spindle cells. All the tumors showed a plexiform and/or intersecting fascicular growth pattern, and perineural extension was observed in 3 tumors. ALK immunohistochemistry showed diffuse and intense cytoplasmic staining in 13 cases, and 7 of them were detected by FISH to confirm the presence of ALK fusions. All patients were followed up for 7 to 21 months (median=12), with no recurrence or lymph node dissemination. Conclusions: Spitz tumors with ALK fusions have their special histopathologic features.ALK fusions mainly occur in Spitz nevi and atypical Spitz tumors. The follow-up data of the existing literatures and our research indicates that the prognosis of ALK-positive Spitz tumors may be good.
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Affiliation(s)
- J Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - J C Kong
- Clinical Pathological Diagnosis Center of Fudan University, Shanghai 200032, China
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks (Bos Grunniens) of Qinghai Province, China. J Parasitol 2019. [DOI: 10.1645/18-62] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- M. Ren
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - F. Wu
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D. Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L. Y. Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J. J. Chang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q. Lin
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
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Ren M, Wu F, Zou Y, Tu Y, Wang D, Li LY, Zhang HJ, Wang JM, Lin Q. Molecular characterization of Sarcocystis species isolated from Chinese buffaloes in Guizhou province based on 18S rRNA and cox1 sequences. Mitochondrial DNA B Resour 2019. [DOI: 10.1080/23802359.2018.1507630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Mei Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province, People’s Republic of China
| | - Fei Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
| | - Yong Zou
- Animal Diseases Control & Prevention Centre of Guanling Autonomous County, Anshun, Guizhou province, People’s Republic of China
| | - Ya Tu
- Animal Diseases Control & Prevention Centre of Guanling Autonomous County, Anshun, Guizhou province, People’s Republic of China
| | - Dan Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
| | - Lu-Yao Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
| | - Hui-Jun Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
| | - Jia-Ming Wang
- Animal Diseases Control & Prevention Centre of Qiannan, Duyun, Guizhou province, People’s Republic of China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People’s Republic of China
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province, People’s Republic of China
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Ren M, Kong YY, Shen XX, Cai X, Kong JC. [Lentigo maligna and lentigo maligna melanoma: a clinicopathologic analysis of twenty-four cases]. Zhonghua Bing Li Xue Za Zhi 2018; 47:769-774. [PMID: 30317732 DOI: 10.3760/cma.j.issn.0529-5807.2018.10.007] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinicopathologic features, differential diagnosis and prognosis of lentigo maligna (LM) and lentigo maligna melanoma (LMM). Methods: Histopathologic evaluation and immunohistochemical study by HRP multimer method were carried out in 24 cases of LM and LMM from 2012 to 2017 at Fudan University Shanghai Cancer Center. The clinical information and follow-up data were analyzed. Results: Of total 24 cases, there were 7 cases of LM and 17 cases of LMM; 10 males and 14 females. The age of patients ranged from 32 to 88 years (mean 67 years). The male-to-female ratio was 1.0∶1.4. Tumors were all located on head and face. Clinically, all patients presented with mottled light brown or sepia macule located on head and face for a long time, and some of them followed by nodules or ulceration within the lesion. The diameter of lesions ranged from 0.5 to 3.0 cm. Microscopically, LM and in-situ component of LMM were all characterized by a predominantly junctional proliferation of atypical melanocytes with marked pleomorphism, frequently extending down the walls of hair follicles and sweat ducts. Multinucleate cells were frequently present. The invasive components of LMM mainly consisted of atypical melanocytic spindle cells (13 cases, 76.5%), and the mean Breslow thickness was 1.2 mm (0.1-2.7 mm). The lesions of LM/LMM were generally associated with severe actinic damage, scattered infiltration of lymphocytes and melanophages. Statistically, the number of cases whose diameter of lesion ≥0.6 cm, mitotic rates ≥4/mm(2) and nests of melanocytes within epidermis in group of LMM were significantly more than those in group of LM. Immunohistochemically, atypical melanocytes in LM and LMM were generally positive for S-100, HMB45, PNL2, Melan A and SOX-10. Follow-up was available in all cases, ranging from 1 to 64 months. Only one out of 23 patients with wide surgical excision had local recurrence, and the remaining 22 patients were all alive with no evidence of disease. One LM patient who was merely treated with biopsy was alive with disease progression after 20 months follow-up. Conclusions: LM/LMM is a special subtype of melanoma predominantly located on the sun-exposed skin of elderly people. Recognition of its specific histologic features can help distinguish with sun-damaged diseases and other subtypes of melanoma. The prognosis of LM/LMM patients treated with surgical excision is considered relatively favorable. However, long term follow-up should be recommended in patients with LM/LMM because of high recurrence rates indicated by previous studies.
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Affiliation(s)
- M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Finn R, Kudo M, Cheng AL, Wyrwicz L, Ngan R, Blanc J, Baron A, Vogel A, Ikeda M, Piscaglia F, Han KH, Qin S, Minoshima Y, Kanekiyo M, Ren M, Dairiki R, Tamai T, Dutcus C, Funahashi Y, Evans T. Final analysis of serum biomarkers in patients (pts) from the phase III study of lenvatinib (LEN) vs sorafenib (SOR) in unresectable hepatocellular carcinoma (uHCC) [REFLECT]. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wang B, Qin L, Ren M, Sun H. Effects of Combination of Anti-CTLA-4 and Anti-PD-1 on Gastric Cancer Cells Proliferation, Apoptosis and Metastasis. Cell Physiol Biochem 2018; 49:260-270. [PMID: 30138920 DOI: 10.1159/000492876] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 03/31/2017] [Accepted: 08/14/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Gastric cancer (GC) is one of the most common and lethal varieties of cancers. Anticancer activities of anti-CTLA-4 and anti-PD-1 antibodies have been explored in different cancers, including GC. The study aimed to explore the role of combination therapy with anti-CTLA-4 and anti-PD-1 antibodies in GC cells, and understand the possible underlying molecular mechanism. METHODS MKN-45 and MGC-803 cells were divided into four groups, namely control, CTLA-4, PD-1, and CTLA-4&PD-1. Cell viability, cell cycle, apoptosis, migration and invasion were measured by MTT, flow cytometry, and transwell assays, respectively. Expression levels of different mRNAs and proteins associated with apoptosis, epithelial mesenchymal transition (EMT), β-catenin, MAPK, and PI3K/AKT pathways were assessed by RT-qPCR and western blot analysis, respectively. The tumor formation in vivo was examined by tumor Xenograft model assay. RESULTS Combination with anti-CTLA-4 and anti-PD-1 antibodies significantly suppressed cell proliferation, induced apoptosis, as well as inhibited migration, invasion, and EMT in MKN-45 and MGC-803 cells. Western blotting revealed that combination with anti-CTLA-4 and anti-PD-1 antibodies declined the activation of β-catenin, MAPK and PI3K/AKT signal pathways. Moreover, combination of anti-CTLA-4 and anti-PD-1 antibodies inhibited tumor formation in vivo. Furthermore, the mRNA levels of CTLA-4 and PD-1 were significantly decreased in si-CTLA and si-PD-1 transfected cells, and combination with si-CTLA and si-PD-1 also suppressed cell proliferation, migration, invasion, EMT and induced apoptosis in MKN-45 cells. CONCLUSION Combination therapy with anti-CTLA-4 and anti-PD-1 antibodies presented the promising outcomes in GC, although further investigations are warranted.
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Affiliation(s)
- Bin Wang
- Department of Gastrointestinal Surgery, Jining No.1 People's Hospital, Jining, China
| | - Lei Qin
- Department of Gastrointestinal Surgery, Jining No.1 People's Hospital, Jining, China
| | - Mei Ren
- Department of Oncology, Jining No.1 People's Hospital, Jining, China
| | - Hao Sun
- Department of Gastrointestinal Surgery, Jining No.1 People's Hospital, Jining, China
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Mclean K, Holmes E, Penewit K, Waalkes A, Ren M, Harwood R, Lee S, Gasper J, Manoil C, Salipante S. P036 Whole genome variant analysis and transposon sequencing provides insight into aztreonam resistance in cystic fibrosis Pseudomonas aeruginosa airway infection. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30333-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Objective: To investigate the difference between routine hematoxylin-eosin (HE) staining and immunohistochemistry in diagnosing metastatic melanoma in sentinel lymph node (SLN) metastases, and to evaluate the association of SLN tumor burden with the status of non-sentinel lymph nodes (NSLN). Methods: 126 melanoma patients were treated with SLN biopsy and further examined with immunohistochemistry at Fudan University Shanghai Cancer Center between 2010 and 2016, and the status of SLN was respectively estimated by HE stain and immunohistochemistry (S-100 protein, HMB45, Melan A and SOX10). In 39 patients who were treated with complete lymph node dissection, characteristics of SLN tumor burden (maximum diameter of the tumor deposit, tumor penetrative depth and the microanatomic location of the metastasis) and the associations of SLN tumor burden with the involvement of NSLN were all evaluated. Results: Of the total 126 cases, 33 (26.2%) were positive by HE staining and 49 (38.3%) were positive by immunohistochemistry. S-100 protein was positive in 48 out of 49 cases (98.0%). HMB45 was positive in 46 out of 49 cases (93.9%). Melan A was positive in 47 out of 49 cases (96.0%). SOX10 was positive in 8 out of 8 cases. The outcome indicated that the application of immunohistochemistry identified positive SLN missed by HE stain in about 12.1% of cases. Of the 39 patients who were treated with complete lymph node dissection, six showed metastases in NSLN. The frequency of metastases in NSLN was 15.4% (6/39) when SLN was positive. Additionally, the frequency of metastases in NSLN in cases with SLN metastatic deposits ≤2 mm was significantly lower than that in cases with SLN metastatic deposits >2 mm; eight cases with SLN metastatic deposits <0.2 mm had no additional positive NSLN. Conclusions: The findings suggest that immunohistochemistry could effectively improve the detection of positive SLN in melanoma. Cases with SLN metastatic deposits ≤2 mm are less likely to have further metastases in NSLN. There is a need for prospective large-population based studies to identify a subgroup of SLN positive patients who can safely be spared complete lymph node dissection.
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Affiliation(s)
- M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Duan ZJ, Yao K, Qu YM, Ren M, Zhang YL, Qi XL. [Rare primary proximal epithelioid sarcoma in skull base: clinical analysis of four cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:263-269. [PMID: 29747250 DOI: 10.3760/cma.j.issn.1673-0860.2018.04.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To report the clinical and pathological features of primary proximal epithelioid sarcoma (PES) in skull base. Methods: The clinical and pathological features of four cases of PES in skull base from Sanbo Brain Institute of Capital Medical University and Kunming Sanbo Brain Institute were analysed retrospectively. Results: Three cases was female, and one male, the age ranged from 46 to 52 years.All cases occurred in skull base, and sellar region was the main site of involvement.Under the microscope, the tumor cells characterized by epithelioid cell changes, with or without rhabdoid tumor cells.Mitotic figure was active.Immunohistochemical staining showed that AE1/AE3, EMA and CD34 were variously expression in tumor cells.INI-1 protein was lost in all cases.Three cases were detected by FISH, and INI1 (22q11.2) gene locus was absent in them.Three patients died less than 3 months after surgery, and case 4 was under treatment after five months of surgery. Conclusions: Primary PES in skull base mostly occurs in sellar region and its clinical prognosis is poor.It features with epithelioid/rhabdoid tumor cells with lack granuloma structure as distal ES.It has epithelial and mesenchymal differentiation characteristics.CD34 is always positive.INI1 gene deletion and protein loss expression are characteristic molecular alteration of PES.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y M Qu
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - M Ren
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y L Zhang
- Department of Neurosurgery, Sanbo Brain Institute, Kunming 650100, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
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Yu W, Hu B, Shi X, Cao Z, Ren M, He Z, Lin J, Deng H, Hu R. Nicotine inhibits osteogenic differentiation of human periodontal ligament cells under cyclic tensile stress through canonical Wnt pathway and α7 nicotinic acetylcholine receptor. J Periodontal Res 2018; 53:555-564. [PMID: 29603740 DOI: 10.1111/jre.12545] [Citation(s) in RCA: 7] [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] [Accepted: 02/13/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Nicotine, the main psychoactive component of tobacco, affects cell metabolism, proliferation, adhesion and, importantly, the osteogenic differentiation of fibroblasts. Approximately 15% of all orthodontic patients are adults among who one-fifth are smokers. Hence, it is necessary to have insight into the effects of nicotine on the osteogenic differentiation of hPDLCs during orthodontic tooth movement. This study aimed to investigate the effects and mechanisms of nicotine on the osteogenic differentiation of human periodontal ligament cells (hPDLCs) under the application of cyclic tensile stress. MATERIAL AND METHODS hPDLCs were obtained from donor third molars. The hPDLCs were treated with nicotine and/or cyclic tensile stress that was applied with a cell stress plus unit. The effect of nicotine on cell viability was analyzed using the MTT assay. The osteogenic differentiation of hPDLCs was detected by alkaline phosphatase staining, Alizarin Red S staining, quantitative real-time polymerase chain reaction and western blotting. RESULTS In combination with cyclic tensile stress, nicotine prevented the tensile stress-induced increase in alkaline phosphatase activity, formation of mineralization nodules and the upregulation of mRNA and protein expression of Runt-related transcription factor 2, transcription factor Sp7 and collagen type I; however, canonical Wnt pathway was activated. Furthermore, the addition of Dickkopf-related protein 1 and α-bungarotoxin counteracted the negative effect of nicotine and rescued the osteogenic differentiation of hPDLCs, respectively. CONCLUSION These results indicate that nicotine prevents the increased osteogenic potential of hPDLCs induced by cyclic tensile stress by binding to an α7 nicotinic acetylcholine receptor and activating the canonical Wnt pathway.
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Affiliation(s)
- W Yu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - B Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - X Shi
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z Cao
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - M Ren
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z He
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - J Lin
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - H Deng
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - R Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
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Ren M, Cong XF, Zhao SS, Zhang Y, Yang L. [DICER1 mutaiton identified in sisters with Ovarian Sertoli-Leydig cell tumor]. Zhonghua Zhong Liu Za Zhi 2018; 40:159-160. [PMID: 29502380 DOI: 10.3760/cma.j.issn.0253-3766.2018.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Ren
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - X F Cong
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - S S Zhao
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - Y Zhang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - L Yang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
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