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Pei YY, Wang HL, Yin GQ, Xu Y, Tan JH, Liang XH, Wu HY, Yin XT, Fang CX, Peng JZ, Wu ZY, Sun Y, Dang R, Liang YF, Tang HM, Li YY, Qiao ZX, Liang ZC, Tang JP, Zeng FS, Zheng KL, Zeng YR, Cao XJ, Xia HM, Wei JR, Tang JL, Gong ST. Specific convulsions and brain damage in children hospitalized for Omicron BA.5 infection: an observational study using two cohorts. World J Pediatr 2024:10.1007/s12519-024-00808-z. [PMID: 38713366 DOI: 10.1007/s12519-024-00808-z] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/22/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND SARS-CoV-2 continues to mutate over time, and reports on children infected with Omicron BA.5 are limited. We aimed to analyze the specific symptoms of Omicron-infected children and to improve patient care. METHODS We selected 315 consecutively hospitalized children with Omicron BA.5 and 16,744 non-Omicron-infected febrile children visiting the fever clinic at our hospital between December 8 and 30, 2022. Specific convulsions and body temperatures were compared between the two cohorts. We analyzed potential associations between convulsions and vaccination, and additionally evaluated the brain damage among severe Omicron-infected children. RESULTS Convulsion rates (97.5% vs. 4.3%, P < 0.001) and frequencies (median: 2.0 vs. 1.6, P < 0.001) significantly differed between Omicron-infected and non-Omicron-infected febrile children. The body temperatures of Omicron-infected children were significantly higher during convulsions than when they were not convulsing and those of non-Omicron-infected febrile children during convulsions (median: 39.5 vs. 38.2 and 38.6 °C, both P < 0.001). In the three Omicron-subgroups, the temperature during convulsions was proportional to the percentage of patients and significantly differed ( P < 0.001), while not in the three non-Omicron-subgroups ( P = 0.244). The convulsion frequency was lower in the 55 vaccinated children compared to the 260 non-vaccinated children (average: 1.8 vs. 2.1, P < 0.001). The vaccination dose and convulsion frequency in Omicron-infected children were significantly correlated ( P < 0.001). Fifteen of the 112 severe Omicron cases had brain damage. CONCLUSIONS Omicron-infected children experience higher body temperatures and frequencies during convulsions than those of non-Omicron-infected febrile children. We additionally found evidence of brain damage caused by infection with omicron BA.5. Vaccination and prompt fever reduction may relieve symptoms.
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Affiliation(s)
- Yuan-Yuan Pei
- Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Hong-Li Wang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Gen-Quan Yin
- Department of Internal Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yi Xu
- Department of Infectious Diseases, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jian-Hao Tan
- Information Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Xin-Hua Liang
- School of Pediatrics, Guangzhou Medical University, Guangzhou, 510623, China
| | - Hui-Ying Wu
- Imaging Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Xun-Tao Yin
- Imaging Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Chun-Xiao Fang
- Department of Infectious Diseases, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jun-Zheng Peng
- Respiratory Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Zhi-Yuan Wu
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yi Sun
- Neonatal Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Run Dang
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yu-Feng Liang
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Hong-Mei Tang
- Rehabilitation Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - You-Yi Li
- General Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Zhong-Xiang Qiao
- Rehabilitation Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Zhi-Cheng Liang
- Emergency Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jian-Ping Tang
- Neonatal Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Fan-Sen Zeng
- Department of Infectious Diseases, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Ke-Lu Zheng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Yi-Ru Zeng
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Xiao-Jun Cao
- Information Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Hui-Min Xia
- Key Laboratory of Structural Birth Defects Research in Guangdong Province, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jian-Rui Wei
- Cardiovascular Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Jin-Ling Tang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
| | - Si-Tang Gong
- General Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China.
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Lv JX, Liu X, Pei YY, Song ZG, Chen X, Hu SJ, She JL, Liu Y, Chen YM, Zhang YZ. Evolutionary trajectory of diverse SARS-CoV-2 variants at the beginning of COVID-19 outbreak. Virus Evol 2024; 10:veae020. [PMID: 38562953 PMCID: PMC10984623 DOI: 10.1093/ve/veae020] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/24/2024] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Despite extensive scientific efforts directed toward the evolutionary trajectory of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in humans at the beginning of the COVID-19 epidemic, it remains unclear how the virus jumped into and evolved in humans so far. Herein, we recruited almost all adult coronavirus disease 2019 (COVID-19) cases appeared locally or imported from abroad during the first 8 months of the outbreak in Shanghai. From these patients, SARS-CoV-2 genomes occupying the important phylogenetic positions in the virus phylogeny were recovered. Phylogenetic and mutational landscape analyses of viral genomes recovered here and those collected in and outside of China revealed that all known SARS-CoV-2 variants exhibited the evolutionary continuity despite the co-circulation of multiple lineages during the early period of the epidemic. Various mutations have driven the rapid SARS-CoV-2 diversification, and some of them favor its better adaptation and circulation in humans, which may have determined the waxing and waning of various lineages.
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Affiliation(s)
- Jia-Xin Lv
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
| | - Xiang Liu
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
| | - Yuan-Yuan Pei
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
- Shanghai Public Health Clinical Center, No. 2901 Canglang Road, Jinshan District, Shanghai 210508, China
| | - Zhi-Gang Song
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
- Shanghai Public Health Clinical Center, No. 2901 Canglang Road, Jinshan District, Shanghai 210508, China
| | - Xiao Chen
- College of Marine Sciences, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Shu-Jian Hu
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
| | - Jia-Lei She
- Shanghai Public Health Clinical Center, No. 2901 Canglang Road, Jinshan District, Shanghai 210508, China
| | - Yi Liu
- Shanghai Public Health Clinical Center, No. 2901 Canglang Road, Jinshan District, Shanghai 210508, China
| | - Yan-Mei Chen
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
| | - Yong-Zhen Zhang
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, No. 2005 Songhu Road, Yangpu District, Shanghai 200438, China
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Chen YM, Hu SJ, Lin XD, Tian JH, Lv JX, Wang MR, Luo XQ, Pei YY, Hu RX, Song ZG, Holmes EC, Zhang YZ. Host traits shape virome composition and virus transmission in wild small mammals. Cell 2023; 186:4662-4675.e12. [PMID: 37734372 DOI: 10.1016/j.cell.2023.08.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 03/25/2023] [Revised: 07/13/2023] [Accepted: 08/22/2023] [Indexed: 09/23/2023]
Abstract
Bats, rodents, and shrews are the most important animal sources of human infectious diseases. However, the evolution and transmission of viruses among them remain largely unexplored. Through the meta-transcriptomic sequencing of internal organ and fecal samples from 2,443 wild bats, rodents, and shrews sampled from four Chinese habitats, we identified 669 viruses, including 534 novel viruses, thereby greatly expanding the mammalian virome. Our analysis revealed high levels of phylogenetic diversity, identified cross-species virus transmission events, elucidated virus origins, and identified cases of invertebrate viruses in mammalian hosts. Host order and sample size were the most important factors impacting virome composition and patterns of virus spillover. Shrews harbored a high richness of viruses, including many invertebrate-associated viruses with multi-organ distributions, whereas rodents carried viruses with a greater capacity for host jumping. These data highlight the remarkable diversity of mammalian viruses in local habitats and their ability to emerge in new hosts.
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Affiliation(s)
- Yan-Mei Chen
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Shu-Jian Hu
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Xian-Dan Lin
- Wenzhou Center for Disease Control and Prevention, Wenzhou, Zhejiang 325002, China
| | - Jun-Hua Tian
- Wuhan Center for Disease Control and Prevention, Wuhan, Hubei 430022, China
| | - Jia-Xin Lv
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Miao-Ruo Wang
- Longquan Center for Disease Control and Prevention, Longquan, Zhejiang 323799, China
| | - Xiu-Qi Luo
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Yuan-Yuan Pei
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Rui-Xue Hu
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Zhi-Gang Song
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Edward C Holmes
- Sydney Institute for Infectious Diseases, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; Laboratory of Data Discovery for Health Limited, Hong Kong SAR, China
| | - Yong-Zhen Zhang
- State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200438, China.
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Liang GH, Xie Y, Guo YP, Xing WP, Pei YY. [Effect of Flax lignans on apoptosis of growth plate chondrocytes in rats]. Zhongguo Gu Shang 2022; 35:1087-1094. [PMID: 36415197 DOI: 10.12200/j.issn.1003-0034.2022.11.015] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To compare the effects of different concentrations of linolenin on inhibiting apoptosis of chondrocytes in the growth plate, and to screen the optimal concentration of linolenin, so as to provide theoretical support for delaying epiphyseal closure and promoting long bone growth in rats. METHODS Two 4-week-old male SD rats (SPF grade) with a body mass of 80 g were selected. The growth plate cartilage of rat tibia and femur was dissected and isolated in vitro to obtain growth plate chondrocytes for culture. The chondrocytes were observed and identified by inverted phase contrast microscope and typeⅡ collagen immunofluorescence test, and then 20 ng/ml IL-1β was used to induce apoptosis of growth plate chondrocytes as model group, and added with 1, 10, 20, 40 μM linolenin as the experimental group, and 5 μM letrozole as the positive control group. The cells were cultured for 24 and 48 hours respectively. The drug promoted cell proliferation was observed by MTT method, and the drug inhibited cell apoptosis was detected by flow cytometry. RESULTS Contents 1, 10, 20, 40 μM could promote cell proliferation in varying degrees, and the principle was that the drug inhibits IL-1β induced chondrocyte apoptosis in the growth plate, and the optimal concentration of drugs to inhibit apoptosis was 20 μM. CONCLUSION The appropriate concentration of linseed lignans can significantly inhibit the apoptosis of chondrocytes in the growth plate of rats, and the optimal drug concentration is 20 μM. It provides possibility for delayed bone closure and longer growth time to promote bone growth during development.
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Affiliation(s)
- Guo-Hui Liang
- Henan Provincial Luoyang Orthopedic-Traumatological Hospital, Henan Provincial Orthopedic Hospital, Luoyang 471000, Henan, China
| | - Yan Xie
- Henan Provincial Luoyang Orthopedic-Traumatological Hospital, Henan Provincial Orthopedic Hospital, Luoyang 471000, Henan, China
| | - Yun-Peng Guo
- Henan Provincial Luoyang Orthopedic-Traumatological Hospital, Henan Provincial Orthopedic Hospital, Luoyang 471000, Henan, China
| | - Wei-Peng Xing
- Henan Provincial Luoyang Orthopedic-Traumatological Hospital, Henan Provincial Orthopedic Hospital, Luoyang 471000, Henan, China
| | - Yuan-Yuan Pei
- Henan Provincial Luoyang Orthopedic-Traumatological Hospital, Henan Provincial Orthopedic Hospital, Luoyang 471000, Henan, China
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Wang W, Tian JH, Chen X, Hu RX, Lin XD, Pei YY, Lv JX, Zheng JJ, Dai FH, Song ZG, Chen YM, Zhang YZ. Coronaviruses in Wild Animals Sampled in and Around Wuhan in the Beginning of COVID-19 Emergence. Virus Evol 2022; 8:veac046. [PMID: 35769892 PMCID: PMC9214087 DOI: 10.1093/ve/veac046] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 11/22/2022] Open
Abstract
Over the last several decades, no emerging virus has had a profound impact on the world as the SARS-CoV-2 that emerged at the end of 2019 has done. To know where severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) originated from and how it jumped into human population, we immediately started a surveillance investigation in wild mammals in and around Wuhan when we determined the agent. Herein, coronaviruses were screened in the lung, liver, and intestinal tissue samples from fifteen raccoon dogs, seven Siberian weasels, three hog badgers, and three Reeves’s muntjacs collected in Wuhan and 334 bats collected around Wuhan. Consequently, eight alphacoronaviruses were identified in raccoon dogs, while nine betacoronaviruses were found in bats. Notably, the newly discovered alphacoronaviruses shared a high whole-genome sequence similarity (97.9 per cent) with the canine coronavirus (CCoV) strain 2020/7 sampled from domestic dog in the UK. Some betacoronaviruses identified here were closely related to previously known bat SARS-CoV-related viruses sampled from Hubei province and its neighbors, while the remaining betacoronaviruses exhibited a close evolutionary relationship with SARS-CoV-related bat viruses in the RdRp gene tree and clustered together with SARS-CoV-2-related bat coronaviruses in the M, N and S gene trees, but with relatively low similarity. Additionally, these newly discovered betacoronaviruses seem unlikely to bind angiotensin-converting enzyme 2 because of the deletions in the two key regions of their receptor-binding motifs. Finally, we did not find SARS-CoV-2 or its progenitor virus in these animal samples. Due to the high circulation of CCoVs in raccoon dogs in Wuhan, more scientific efforts are warranted to better understand their diversity and evolution in China and the possibility of a potential human agent.
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Affiliation(s)
- Wen Wang
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
- Department of Zoonosis, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention , Beijing, 102206, China
| | - Jun-Hua Tian
- Hubei Key Laboratory of Resources Utilization and Sustainable Pest Management, College of Plant Science and Technology, Huazhong Agricultural University , Wuhan, 430070, Hubei Province, China
- Wuhan Center for Disease Control and Prevention , Wuhan, Hubei Province, China
| | - Xiao Chen
- College of Marine Sciences, South China Agricultural University , Guangzhou, Guangdong Province, China
| | - Rui-Xue Hu
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Xian-Dan Lin
- Wenzhou Center for Disease Control and Prevention , Wenzhou, Zhejiang Province, China
| | - Yuan-Yuan Pei
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Jia-Xin Lv
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Jiao-Jiao Zheng
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Fa-Hui Dai
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Zhi-Gang Song
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Yan-Mei Chen
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
| | - Yong-Zhen Zhang
- Shanghai Public Health Clinical Center, Shanghai key laboratory of organ transplantation of Zhongshan Hospital, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University , Shanghai, China
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Pei YY, Huang DY, Zhang T, Zhang W, Zhang J, Zhang SC, Lei Y, Zhou Y, Cheng L, Chen J. [The role of RUNX1 in the apoptosis of epithelial cells in nasal polyps]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:1328-1335. [PMID: 34963222 DOI: 10.3760/cma.j.cn115330-20210125-00036] [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 explore the expression of Runt-related transcription factor 1 (RUNX1) in nasal polyps (NPs) tissues and the potential role on apoptosis of primary human nasal epithelial cells (pHNECs) in NPs. Methods: The expression level of RUNX1 in NPs tissues was determined by Western blot (WB) and immunohistochemical staining (IHC). In vitro, TNF-α (20 ng/ml) was used to stimulate pHNECs to establish the apoptosis injury model. Hoechst staining was performed to observe pHNECs apoptosis by kit. Subsequently, quantitative real-time PCR (qRT-PCR) and WB were utilized to detect the expression of apoptosis-related proteins B-cell lymphoma-2 (BCL-2), BCL2-associated X (BAX) and cysteinyl aspartate specific proteinase-3 (Caspase-3) to assess the level of apoptosis. The plasmid of sh-RUNX1-6 was transfected into the pHNECs apoptosis model, then the effect of RUNX1 silence on apoptosis was evaluated by WB and flow cytometry. Statistical analysis was performed by the SPSS 19.0 and GraphPad Prism5 software. Results: The expression of RUNX1 in NPs tissue was significantly higher than that in inferior turbinates, and the difference was statistically significant (0.274±0.042 vs 0.110±0.027, t=9.675, P<0.05). Compared with the inferior turbinates, BAX and Caspase-3 expressions were increased whereas BCL-2 was decreased in NPs, and the differences were statistically significant (BAX 0.346±0.032 vs 0.302±0.037, Caspase-3 0.228±0.061 vs 0.158±0.065, BCL-2 0.090±0.047 vs 0.276±0.057, t value was 2.680, 2.361 and 7.575, respectively, all P<0.05). The expression levels of RUNX1 and apoptosis in pHNECs increased in a time-dependent manner after TNF-α exposure (P<0.05). Plasmid of sh-RUNX1-6 transfected silenced the expression of RUNX1 in pHNECs treated by TNF-α. After silencing RUNX1 in pHNECs apoptosis model, the protein levels of BAX and Caspase-3 were decreased, while the expression of BCL-2 was increased, the rate of apoptosis was decreased (P<0.05). Conclusions: RUNX1 is increased in NPs. Silencing RUNX1 can inhibit the apoptosis and reduce cell inflammatory damage of pHNECs induced by TNF-α.
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Affiliation(s)
- Y Y Pei
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - D Y Huang
- Clinical College, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China
| | - T Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - W Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - J Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - S C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Y Lei
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - L Cheng
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, International Center for Allergy Research, Nanjing Medical University, Nanjing 210029, China
| | - J Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Institute of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
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Yu B, Zhang XL, Li SN, Xu LY, Chang Y, Bi TR, Zhou B, Zuo YH, Zhao L, Pei YY, Zhu JH, Han F, Dong XS. [Utility of the type 3 portable monitor for the diagnosis of sleep disordered breathing in patients with stable heart failure]. Zhonghua Yi Xue Za Zhi 2021; 101:1676-1682. [PMID: 34126716 DOI: 10.3760/cma.j.cn112137-20210202-00324] [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 evaluate the utility of a type 3 portable monitor (PM) at home for the diagnosis of sleep disordered breathing (SDB) in patients with stable congestive heart failure (CHF). Methods: Seventy-six consecutive patients with CHF (61 males, 15 females, mean±standard deviation age (57.0±16.9) years) were enrolled from the sleep center of Peking university People's Hospital during January 2016 to January 2019, and underwent overnight, unattended home sleep apnea testing (HSAT) with a portable monitor followed by an overnight simultaneous polysomnogram (PSG) with in-laboratory portable monitor (in-lab PM) recording within one week. The consistency of apnea hypopnea index (AHI), obstructive sleep apnea index (OAI), central sleep apnea index (CAI) between HSAT and PSG as well as the in-lab PM and PSG were analyzed by Bland-Altman plot; the sensitivity and specificity of PM for the diagnosis of SDB in patients with CHF were evaluated. Results: The number of patients included in the final analysis were 65 in HSAT, 63 in in-lab PM and 65 in PSG. AHI [M(Q1,Q3)] was 26.1 (10.9,40.1) events/h by HSAT, 27.9 (11.3,43.2) events/h by in-lab PM, both were not different from AHI 29.0 (10.2,45.0) events/h by PSG (P>0.05). The AHI, OAI and CAI assessed by HSAT correlated significantly with those by PSG (r=0.892, 0.903, 0.831, P<0.05). Bland-Altman analysis of AHI, OAI, CAI by PSG versus HSAT showed a mean difference of 3.1 events/h, 0.8 events/h, 1.2 events/h; limits of consistency were -15.2 to 21.4 events/h, -9.7 to 11.3 events/h, -10.9 to 13.2 events/h, respectively. Based on a threshold of AHI ≥5 events/h, HSAT had 94.6% sensitivity, 75% specificity, compared to PSG. For detecting Cheyne-Stokes respiration (CSR), a sensitivity of 96.4%,a specificity of 97.2% were achieved, compared to PSG. Conclusion: Type 3 PM can be used to diagnose SDB in patients with CHF.
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Affiliation(s)
- B Yu
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - X L Zhang
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - S N Li
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - L Y Xu
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Y Chang
- Department of Respiratory and Critical Care Medicine, Peking University International Hospital, Beijing 102206, China
| | - T R Bi
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - B Zhou
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Y H Zuo
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - L Zhao
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Y Y Pei
- Department of Emergency, Peking University People's Hospital, Beijing 100044, China
| | - J H Zhu
- Department of Emergency, Peking University People's Hospital, Beijing 100044, China
| | - F Han
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - X S Dong
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
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8
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Huang HY, Lin YCD, Li J, Huang KY, Shrestha S, Hong HC, Tang Y, Chen YG, Jin CN, Yu Y, Xu JT, Li YM, Cai XX, Zhou ZY, Chen XH, Pei YY, Hu L, Su JJ, Cui SD, Wang F, Xie YY, Ding SY, Luo MF, Chou CH, Chang NW, Chen KW, Cheng YH, Wan XH, Hsu WL, Lee TY, Wei FX, Huang HD. miRTarBase 2020: updates to the experimentally validated microRNA-target interaction database. Nucleic Acids Res 2020; 48:D148-D154. [PMID: 31647101 PMCID: PMC7145596 DOI: 10.1093/nar/gkz896] [Citation(s) in RCA: 574] [Impact Index Per Article: 143.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 09/30/2019] [Accepted: 10/22/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs (typically consisting of 18–25 nucleotides) that negatively control expression of target genes at the post-transcriptional level. Owing to the biological significance of miRNAs, miRTarBase was developed to provide comprehensive information on experimentally validated miRNA–target interactions (MTIs). To date, the database has accumulated >13,404 validated MTIs from 11,021 articles from manual curations. In this update, a text-mining system was incorporated to enhance the recognition of MTI-related articles by adopting a scoring system. In addition, a variety of biological databases were integrated to provide information on the regulatory network of miRNAs and its expression in blood. Not only targets of miRNAs but also regulators of miRNAs are provided to users for investigating the up- and downstream regulations of miRNAs. Moreover, the number of MTIs with high-throughput experimental evidence increased remarkably (validated by CLIP-seq technology). In conclusion, these improvements promote the miRTarBase as one of the most comprehensively annotated and experimentally validated miRNA–target interaction databases. The updated version of miRTarBase is now available at http://miRTarBase.cuhk.edu.cn/.
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Affiliation(s)
- Hsi-Yuan Huang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yang-Chi-Dung Lin
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Jing Li
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Kai-Yao Huang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Sirjana Shrestha
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Hsiao-Chin Hong
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yun Tang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yi-Gang Chen
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Chen-Nan Jin
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yuan Yu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Jia-Tong Xu
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yue-Ming Li
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Xiao-Xuan Cai
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Zhen-Yu Zhou
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Xiao-Hang Chen
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China
| | - Yuan-Yuan Pei
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China
| | - Liang Hu
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China
| | - Jin-Jiang Su
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,Department of Cell Biology, Jiamusi University, Jiamusi, Heilongjiang Province 154007, China
| | - Shi-Dong Cui
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Fei Wang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Yue-Yang Xie
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Si-Yuan Ding
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Meng-Fan Luo
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Chih-Hung Chou
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao Tung University, Hsinchu, Taiwan
| | - Nai-Wen Chang
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan
| | - Kai-Wen Chen
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yu-Hsiang Cheng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Xin-Hong Wan
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China
| | - Wen-Lian Hsu
- Institute of Information Science, Academia Sinica, Taipei 115, Taiwan
| | - Tzong-Yi Lee
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China
| | - Feng-Xiang Wei
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,Department of Cell Biology, Jiamusi University, Jiamusi, Heilongjiang Province 154007, China.,Department of Pathogenic Microorganisms, Zunyi Medical University, Zunyi, Guizhong Province 563006, China
| | - Hsien-Da Huang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Longgang District, Shenzhen, Guangdong Province 518172, China.,Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
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9
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Wu F, Zhao S, Yu B, Chen YM, Wang W, Song ZG, Hu Y, Tao ZW, Tian JH, Pei YY, Yuan ML, Zhang YL, Dai FH, Liu Y, Wang QM, Zheng JJ, Xu L, Holmes EC, Zhang YZ. Author Correction: A new coronavirus associated with human respiratory disease in China. Nature 2020; 580:E7. [PMID: 32296181 PMCID: PMC7608129 DOI: 10.1038/s41586-020-2202-3] [Citation(s) in RCA: 191] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Fan Wu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Su Zhao
- Department of Pulmonary and Critical Care Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bin Yu
- Wuhan Center for Disease Control and Prevention, Wuhan, China
| | - Yan-Mei Chen
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Wen Wang
- Department of Zoonosis, National Institute for Communicable Disease Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Zhi-Gang Song
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yi Hu
- Department of Pulmonary and Critical Care Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhao-Wu Tao
- Department of Pulmonary and Critical Care Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun-Hua Tian
- Wuhan Center for Disease Control and Prevention, Wuhan, China
| | - Yuan-Yuan Pei
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Ming-Li Yuan
- Department of Pulmonary and Critical Care Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu-Ling Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Fa-Hui Dai
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yi Liu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Qi-Min Wang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jiao-Jiao Zheng
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Lin Xu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Edward C Holmes
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.,Marie Bashir Institute for Infectious Diseases and Biosecurity, School of Life and Environmental Sciences and School of Medical Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Yong-Zhen Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China. .,Department of Zoonosis, National Institute for Communicable Disease Control and Prevention, China Center for Disease Control and Prevention, Beijing, China. .,School of Public Health, Fudan University, Shanghai, China.
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10
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Pei YY, Li GC, Ran J, Wan XH, Wei FX, Wang L. Kinesin Family Member 11 Enhances the Self-Renewal Ability of Breast Cancer Cells by Participating in the Wnt/β-Catenin Pathway. J Breast Cancer 2019; 22:522-532. [PMID: 31897327 PMCID: PMC6933027 DOI: 10.4048/jbc.2019.22.e51] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 04/23/2019] [Accepted: 10/22/2019] [Indexed: 12/25/2022] Open
Abstract
Purpose Our previous studies have shown that kinesin family member 11 (KIF11) is markedly overexpressed in human breast cancer cells or tissues and positively correlated with distant metastasis and prognosis in patients with breast cancer, suggesting an important role in the regulation of cancer stem cells. Herein, we examined the role of KIF11 in breast cancer stem cells. Methods In the current study, we validated our previous findings through analysis of data collected in The Cancer Genome Atlas. Endogenous KIF11 was stably silenced in MCF-7 and SKBR-3 cells. Flow cytometry was used to measure the proportion of side-population (SP) cells. Mammosphere culture and tumor implantation experiments in immunodeficient mice were used to assess the self-renewal ability of breast cancer cells. Real-time polymerase chain reaction, western blot, immunofluorescence staining, luciferase reporter assays and Wnt agonist treatment were conducted to investigate the signaling pathways regulated by KIF11. Results We found that the expression level of KIF11 was positively correlated with stem cell-enrichment genes. The proportion of SP cells was significantly reduced in KIF11-silenced cells. Silencing endogenous KIF11 not only reduced the size and number of mammospheres in vitro, but also reduced the ability of breast cancer cells to form tumors in mice. Simultaneously, we found that KIF11 was involved in regulating the activation of the Wnt/β-catenin signaling pathway. Conclusion Endogenous KIF11 enhances the self-renewal of breast cancer cells by activating the Wnt/β-catenin signaling pathway, thereby enhancing the characteristics of breast cancer stem cells.
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Affiliation(s)
- Yuan-Yuan Pei
- Shenzhen Long-gang Maternal and Child Health Hospital Centralab, Shenzhen, China
| | - Gao-Chi Li
- Shenzhen Long-gang Maternal and Child Health Hospital Centralab, Shenzhen, China
| | - Jian Ran
- Shenzhen Long-gang Maternal and Child Health Hospital Centralab, Shenzhen, China
| | - Xin-Hong Wan
- Shenzhen Long-gang Maternal and Child Health Hospital Centralab, Shenzhen, China
| | - Feng-Xiang Wei
- Shenzhen Long-gang Maternal and Child Health Hospital Centralab, Shenzhen, China
| | - Lan Wang
- Department of Pathogen Biology and Immunology, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
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11
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Zhang J, Pei Y, Yang W, Yang W, Chen B, Zhao X, Long S. Cytoglobin ameliorates the stemness of hepatocellular carcinoma via coupling oxidative-nitrosative stress signals. Mol Carcinog 2018; 58:334-343. [PMID: 30365183 DOI: 10.1002/mc.22931] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 09/22/2018] [Accepted: 10/23/2018] [Indexed: 12/18/2022]
Abstract
Cancer stem cells (CSCs) account for tumor self-renewal and heterogeneity. Oxidative-nitrosative stress (ONS) is an independent etiologic factor throughout tumorigenesis. Emerging evidences indicated that the interaction of ONS with CSCs contributes to tumor progression and resistance to chemoradiotherapy. Cytoglobin (Cygb) is a member of human hexacoordinate hemoglobin family and acts as a dynamic mediator of redox homeostasis. We observed that Cygb is significantly deregulated in human hepatocellular carcinoma (HCC) tissue and its decrease aggravates the growth of liver cancer stem cells (LCSCs) and increases the subpopulation of CD133(+) LCSCs. Cygb restoration inhibits HCC proliferation and LCSC growth, and decreases the subpopulation of CD133 (+) LCSCs in vitro. We found that Cygb absence promotes LCSC phenotypes and PI3 K/AKT activation, whereas Cygb restoration inhibits LCSC phenotypes and PI3 K/AKT activation. Furthermore, exogenous antioxidants can eliminate the inhibitory effect of Cygb to LCSC growth and phenotypes, as well as PI3 K/AKT activation. Collectively, this study demonstrated that cytoglobin functions as a tumor suppressor and targets CSCs at an ONS-dependent manner. Thus, Cygb restoration could be a novel and promising therapeutic strategy against HCC with aberrant ROS/RNS accumulation.
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Affiliation(s)
- Jun Zhang
- Department of Pathology, the Affiliated Hospital of Guizhou Medical University, Guiyang, PR China.,Department of Pathology, Graduate School of Medicine, Guizhou Medical University, Guiyang, PR China.,Key Laboratory of Adult Stem Cell Transformation Research, Chinese Academy of Medical Sciences/Stem Cell and Tissue Engineering Research Center, Guizhou Medical University, Guiyang, PR China
| | - YuanYuan Pei
- Department of Pathology, the Affiliated Hospital of Guizhou Medical University, Guiyang, PR China
| | - Wen Yang
- Department of Pathology, the Affiliated Hospital of Guizhou Medical University, Guiyang, PR China
| | - WenXiu Yang
- Department of Pathology, the Affiliated Hospital of Guizhou Medical University, Guiyang, PR China.,Department of Pathology, Graduate School of Medicine, Guizhou Medical University, Guiyang, PR China
| | - BoXin Chen
- Department of Immunology, Basic School of Medicine, Guizhou Medical University, Guiyang, PR China
| | - Xing Zhao
- Department of Immunology, Basic School of Medicine, Guizhou Medical University, Guiyang, PR China
| | - Shiqi Long
- Department of Immunology, Basic School of Medicine, Guizhou Medical University, Guiyang, PR China
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12
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Pei YY, Li GC, Ran J, Wei FX. Kinesin family member 11 contributes to the progression and prognosis of human breast cancer. Oncol Lett 2017; 14:6618-6626. [PMID: 29181100 PMCID: PMC5696720 DOI: 10.3892/ol.2017.7053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 11/07/2015] [Accepted: 06/02/2017] [Indexed: 01/24/2023] Open
Abstract
The present study aimed to clarify the association between kinesin family member 11 (KIF11) and human breast cancer, and the effect of KIF11 on breast cancer cell progression. Western blot analysis, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis, retroviral infection, immunohistochemistry staining, MTT assay, anchorage-independent growth ability assay and tumorigenicity assay were all used in the present study. Western blot and RT-qPCR analysis revealed that the expression of KIF11 was markedly increased in malignant cells compared with that in non-tumorous cells at the mRNA and protein level. Immunohistochemical analysis revealed that KIF11 expression was upregulated in 256/268 (95.8%) paraffin-embedded archival breast cancer biopsies. Statistical analysis demonstrated a significant association between the upregulation of KIF11 expression and the progression of breast cancer. Multivariate analysis revealed that KIF11 upregulation represents an independent prognostic indicator for the survival of patients with breast cancer. Tumorigenicity experiments were further used to evaluate the effect of KIF11 in non-obese diabetic/severe combined immunodeficient mice. Silencing endogenous KIF11 by short hairpin RNAs inhibited the proliferation of breast cancer cells in vitro and in vivo. The present results suggest that KIF11 may serve an important function in the proliferation of breast cancer and may represent a novel and useful prognostic marker for breast cancer.
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Affiliation(s)
- Yuan-Yuan Pei
- Shenzhen Longgang Maternal and Child Health Hospital Centralab, Shenzhen, Guangdong 518172, P.R. China
| | - Gao-Chi Li
- Shenzhen Longgang Maternal and Child Health Hospital Centralab, Shenzhen, Guangdong 518172, P.R. China
| | - Jian Ran
- Shenzhen Longgang Maternal and Child Health Hospital Centralab, Shenzhen, Guangdong 518172, P.R. China
| | - Feng-Xiang Wei
- Shenzhen Longgang Maternal and Child Health Hospital Centralab, Shenzhen, Guangdong 518172, P.R. China
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13
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Wang JH, Pei YY, Xu HD, Li LJ, Wang YQ, Liu GL, Qu Y, Zhang N. Effects of bavachin and its regulation of melanin synthesis in A375 cells. Biomed Rep 2016; 5:87-92. [PMID: 27347410 DOI: 10.3892/br.2016.688] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/09/2016] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the effect of bavachin treatment on A375 cells and the regulation of melanin synthesis. The cultured A375 cells in vitro were treated with bavachin; and the effect of bavachin on cell activity, tyrosinase (TYR) activity and melanin synthesis were respectively tested by the MTT assay, L-dopa oxidation assay and the NaOH lysis assay. The expression levels of TYR and c-Jun N-terminal kinases (JNK) proteins were tested by western blot analysis. The expression levels of TYR, tyrosinase-related protein-1 (TRP-1), TRP-2, extracellular signal-regulated kinase 1 (ERK1), ERK2 and JNK2 mRNA were tested by the reverse transcription-polymerase chain reaction assay. Simultaneously, the effect of estrogen receptor inhibitor (ICI182780) and ERK pathway inhibitor (U0126) was also tested on A375 cells following bavachin. The safe dose of bavachin significantly inhibited melanin synthesis and TYR activity. Bavachin (10 µmol/l) inhibited the expression of TYR and JNK proteins, and the expression of TYR, TRP-1, TRP-2, ERK1, ERK2 and JNK2 mRNA in A375 cells. ICI182780 and U0126 could significantly reverse the bavachin treatment on the protein expression levels and the mRNA expression of TYR, TRP-1, TRP-2, ERK1, ERK2 and JNK2. In conclusion, bavachin inhibited the synthesis of melanin on A375 cells by inhibiting the protein and mRNA expression of TYR, TRP-1, TRP-2, ERK1, ERK2 and JNK2.
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Affiliation(s)
- Jing-Hua Wang
- College of Pharmacy, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Yuan-Yuan Pei
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang 154007, P.R. China
| | - Hong-Dan Xu
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China
| | - Li-Jing Li
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Ye-Qiu Wang
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China
| | - Guo-Liang Liu
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China
| | - Yan Qu
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China
| | - Ning Zhang
- College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China
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14
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Ju CS, He LB, Pei YY, Jiang Y, Huang R, Li YM, Liao LJ, Jang SH, Wang YP. Differential expression of two C-type lectins in grass carp Ctenopharyngodon idella and their response to grass carp reovirus. J Fish Biol 2016; 88:787-793. [PMID: 26643267 DOI: 10.1111/jfb.12815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 06/30/2015] [Accepted: 09/18/2015] [Indexed: 06/05/2023]
Abstract
The cDNAs of two C-type lectins in grass carp Ctenopharyngodon idella, galactose-binding lectin (galbl) and mannose-binding lectin (mbl), were cloned and analysed in this study. Both of them exhibited the highest expression level in liver, whereas their expression pattern differed in early phase of embryonic development. Following exposure to grass carp reovirus (GCRV), the mRNA expression level of galbl and mbl was significantly up-regulated in liver and intestine.
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Affiliation(s)
- C S Ju
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Department of Zoology, College of Life Sciences, Kim Il Song University, Pyongyang, Democratic People's Republic of Korea
| | - L B He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Y Y Pei
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y Jiang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - R Huang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Y M Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - L J Liao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - S H Jang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Department of Zoology, College of Life Sciences, Kim Il Song University, Pyongyang, Democratic People's Republic of Korea
| | - Y P Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Pei YY, Huang R, Li YM, Liao LJ, Zhu ZY, Wang YP. Characterizations of four toll-like receptor 4s in grass carp Ctenopharyngodon idellus and their response to grass carp reovirus infection and lipopolysaccharide stimulation. J Fish Biol 2015; 86:1098-1108. [PMID: 25683466 DOI: 10.1111/jfb.12617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 07/04/2014] [Accepted: 11/26/2014] [Indexed: 06/04/2023]
Abstract
In this study, the subcellular localization, tissue distribution and response to grass carp reovirus (GCRV) infection and lipopolysaccharide (LPS) stimulation of four grass carp Ctenopharyngodon idellus toll-like receptor 4 (tlr4) genes were investigated. All four genes were constitutively expressed in all tissues studied, but the subcellular localization and tissue exhibiting the highest expression differed for each protein. Following GCRV infection, all the four tlr4s were upregulated in all tissues examined, and stimulation of C. idellus kidney (CIK) cells with LPS resulted in downregulation of all four tlr4s. These results provide a foundation for further investigation of tlr4 genes in bony fishes.
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Affiliation(s)
- Y Y Pei
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Graduated University of Chinese Academy of Sciences, Beijing, 100049, China
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Pei YY, Yang WX, Meng Q, Chen Q, Li PH. Correlation between expression of CARMA1 and NF-κB proteins in common subtypes of gastrointestinal B cell lymphoma. Shijie Huaren Xiaohua Zazhi 2013; 21:2641-2648. [DOI: 10.11569/wcjd.v21.i26.2641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the relationship between the expression of CARMA1 and nuclear factor κB (NF-κB) proteins in common subtypes of gastrointestinal B cell lymphoma.
METHODS: Fifty-four specimens of lymphomas, including 34 cases of diffuse large B-cell lymphoma (DLBCL) and 20 cases of mucosa-associated lymphoid tissue (MALT) lymphoma, and 21 specimens of gastrointestinal reactive lymphoid hyperplasia (GRLH) were selected for H&E staining and immunohistochemical staining. The mRNA and protein expression of CARMA1 was detected by Real-time PCR and immunohistochemistry, respectively. Expression of NF-κB proteins was assayed by immunohistochemistry.
RESULTS: The positive rates of CARMA1, NF-κB/p65 and NF-κB/p50 proteins were significantly higher in lymphomas than in GRLH (75.9% vs 47.6%, 48.2% vs 14.3%, 38.9% vs 9.5%; P = 0.042, 0.007, 0.013). The expression levels of CARMA1 mRNA and protein were significantly higher in DLBCL than in MALT lymphoma (P = 0.019, 0.020). There were significant differences in CARMA1 protein expression between lymphomas which were positive and negative for NF-κB/p65 or NF-κB/p50 (84.6% vs 67.9%, 71.4% vs 78.8%, P = 0.030, 0.031). CARMA1 mRNA expression was significantly higher in advanced cases than in early disease (P = 0.011). Expression of CARMA1 protein was significantly higher in cases which infiltrated through the wall than in those which did not (91.7% vs 66.7%, P = 0.003). The levels of CARMA1 mRNA and protein were significantly higher in cases with a high proliferation rate (P = 0.035, 0.006). Expression of NF-κB/p65 and NF-κB/p50 proteins was obviously increased in cases with a later TNM stage or a high proliferation rate (P = 0.015, 0.05, 0.018, 0.001). The type of lymphoma, stage, CARMA1 and NF-κB/p65 protein expression were independent factors affecting the prognosis of lymphomas. Survival was poor in cases with strong expression of CARMA1 protein than in those without (P = 0.02).
CONCLUSION: Expression of CARMA1 was correlated with that of NF-κB in gastrointestinal MALT lymphoma and DLBCL. CARMA1 expression may induce activation of NF-κB and thereby participate in the pathogenesis and progression of gastrointestinal MALT lymphoma and DLBCL.
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Feng WS, Pei YY, Zheng XK, Li CG, Ke YY, Lv YY, Zhang YL. A new kaempferol trioside from Silphium perfoliatum. J Asian Nat Prod Res 2013; 16:393-399. [PMID: 23919684 DOI: 10.1080/10286020.2013.823951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 07/08/2013] [Indexed: 06/02/2023]
Abstract
A new apiose-containing kaempferol trioside, kaempferol-3-O-α-L-rhamnosyl-(1‴ → 6″)-O-β-D-galactopyranosyl-7-O-β-D-apiofuranoside, along with 16 known compounds, were isolated from 50% acetone extract of Silphium perfoliatum L. Their structures were elucidated by acid hydrolysis and spectroscopic techniques including UV, IR, MS, ¹H, ¹³C, and 2D-NMR. In addition, the pharmacological activity of compound 1 was tested with HepG2 and Balb/c mice (splenic lymphocytes and thymic lymphocytes) in vitro, and it exhibited inhibitory effect on the proliferation of HepG2 cells and showed the immunosuppressive activity.
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Affiliation(s)
- Wei-Sheng Feng
- a School of Pharmacy, Henan University of Traditional Chinese Medicine , Zhengzhou 450046 , China
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18
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Abstract
Polyethyleneimine (PEI) has been broadly studied as a leading nonviral gene delivery carrier because of its relatively high transfection efficiency in a wide range of cell types. Here, we report gene transfer in zebrafish cells (ZF4) using PEI as a gene carrier and lipofectamine as a control. Formations of PEI-DNA complexes were characterized by a series of measurements. The particle size of PEI-DNA complexes decreased from 274 to 132 nm, the surface charge gradually increased from -26 to 29 mV, and the cytotoxicity for zebrafish cells was observed with increasing proportion of PEI. Gel retardation assay showed that DNA was completely bound by PEI with a negative-to-positive charge ratio of 4. It was observed by transmission electron microscopy that the morphology of PEI-DNA complexes was spherical with smooth surfaces. Flow cytometry revealed that the optimum transfection efficiency (27%) mediated by PEI was obtained at an negative-to-positive charge ratio of 8, which was higher than that with lipofectamine. Luciferase activity assay confirmed the increase in reporter gene expression probably due to a more efficient formation of complex between DNA and PEI than DNA and lipofectamine. In conclusion, our study demonstrates that PEI may be applied as an effective gene carrier to mediate gene transfer into zebrafish cells.
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Affiliation(s)
- Sui-Dong Ouyang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen (Zhongshan) University, Guangzhou, China
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Liu C, Zhu SJ, Zhou Y, Wei YP, Pei YY. Enhancement of dissolution of cyclosporine A using solid dispersions with polyoxyethylene (40) stearate. Pharmazie 2006; 61:681-4. [PMID: 16964710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A solid dispersion containing cyclosporine A (CyA) and polyoxyethylene (40) stearate (PS) was prepared by the solvent-melt method and characterized by powder X-ray diffraction (PXRD), hot-stage microscopy (HSM), scanning electron microscopy (SEM) and dissolution studies. The crystalline peaks of CyA disappeared in the PXRD spectra of solid dispersions but were seen in those of physical mixtures, demonstrating the amorphous state of the drug in solid dispersions. The solubility of CyA in aqueous solutions of PS was increased linearly with increasing amount of PS in water. Dissolution of the drug from solid dispersions and physical mixtures was dramatically enhanced compared to the drug powder alone in water at 37 degrees C.
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Affiliation(s)
- C Liu
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, PR China
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Pei YY, Zeng ZC. [Effects of TGB-beta1 on schwann cells in peripheral nerve regeneration]. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2004; 29:332-4. [PMID: 16136973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
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21
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Li YP, Zhou ZH, Pei YY, Zhang XY, Gu ZH, Yuan WF. PEGylated polycyanoacrylate nanoparticles as salvicine carriers: synthesis, preparation, and in vitro characterization. Acta Pharmacol Sin 2001; 22:645-50. [PMID: 11749831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
AIM To synthesized poly(methoxypolyethyleneglycol cyanoacrylate-co-n-hexadecyl cyanoacrylate) (PEGylated PHDCA) with polyethylene glycol (PEG, Mr = 5000), prepare PEGylated PHDCA and poly(n-hexadecyl cyanoacrylate) (PHDCA) nanoparticles loading salvicine and determine their in vitro characterizations. METHODS The structure of PEGylated PHDCA was determined with 1H-NMR, 13C-NMR and Fourier transform infrared spectrum (FTIR). Its molecular weight was determined by gel permeation chromatography (GPC). Nanoparticles were prepared by emulsion/solvent evaporation method. RESULTS 1H-NMR, 13C-NMR, and FTIR were consistent with structure of PEGylated PHDCA, whose average molecular weight is 6680. Entrapment efficiency could be determined by high pressure liquid chromatography (HPLC) method without endogenous interference at the retention time of salvicine. The entrapment efficiency was 92.6 % for PEGylated PHDCA nanoparticles and 98.9 % for PHDCA nanoparticles. The nanoparticles size was about 250 nm. The values of the zeta potential were obviously influenced by the composition of the copolymer. Compared with PHDCA nanoparticles (-23.1 mV), PEGylated PHDCA nanoparticles showed a low surface potential (-9.6 mV). Salvicine release from nanoparticles showed an initial burst effect, then a plateau for an extended period, and finally sustained release phase. CONCLUSION These results showed that the PEGylated PHDCA nanoparticles could be an effective carrier for salvicine delivery in the respect of anti-tumor potency.
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Affiliation(s)
- Y P Li
- Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
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Li YP, Pei YY, Ding J, Shen ZM, Zhang XY, Gu ZH, Zhou JJ. PEGylated recombinant human tumor necrosis factor alpha: preparation and anti-tumor potency. Acta Pharmacol Sin 2001; 22:549-55. [PMID: 11747763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
AIM To assess the merits of polyethylene glycol-modified recombinant human tumor necrosis factor alpha (PEG-rHuTNF-alpha). METHODS The rHuTNF-alpha was modified with N-succinimidyl succinate monomethoxy polyethylene glycol (SS-PEG) of three different molecular weights. The PEG-rHuTNF-alpha was separated into fractions of various molecular weights by gel filtration chromatography. In vitro activities of various fractions were determined with L929 cell assay and in vivo anti-tumor potencies of main fractions were studied with respect to necrosis of S-180 solid tumor. RESULTS The rHuTNF-alpha could be modified using SS-PEG under mild conditions. The main fraction of PEG5000-rHuTNF-alpha contained four PEG molecules, and PEG12000-rHuTNF-alpha and PEG20000-rHuTNF-alpha contained two PEG molecules, respectively. There was a higher activity when rHuTNF-alpha was coupled to less numbers of the same molecular weight PEG molecules. When PEG-rHuTNF-alpha was of the same molecular weight, rHuTNF-alpha modified with bigger molecular weight PEG molecules had a higher activity. PEG-rHuTNF-alpha was resistant to proteolysis, and over 70 % activity remained after 8 h, but the activity of rHuTNF-alpha was time-dependently diminished by incubation with bovine trypsin. PEG5000-rHuTNF-alpha (1500 IU per mouse) had a similar anti-tumor potency compared with rHuTNF-alpha (3000 IU per mouse). PEG12000-rHuT NF-alpha (1500 IU per mouse) had an increased anti-tumor potency compared with rHuTNF-alpha (3000 IU per mouse). In particular, PEG20000-rHuTNF-alpha at a dose of 1500 IU per mouse had a higher anti-tumor potency than rHuTNF-alpha at a dose of 6000 IU per mouse. CONCLUSION PEG-modified rHuTNF-alpha could be more suitable for therapeutic use
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Affiliation(s)
- Y P Li
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 200032, China
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Li YP, Pei YY, Zhou ZH, Zhang XY, Gu ZH, Ding J, Zhou JJ, Gao XJ, Zhu JH. Stealth polycyanoacrylate nanoparticles as tumor necrosis factor-alpha carriers: pharmacokinetics and anti-tumor effects. Biol Pharm Bull 2001; 24:662-5. [PMID: 11411555 DOI: 10.1248/bpb.24.662] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study was to investigate the pharmacokinetics and in vivo anti-tumor effect of recombinant human tumor necrosis factor-alpha (rHuTNF-alpha) encapsulated in poly(methoxypolyethyleneglycol cyanoacrylate-co-n-hexadecyl cyanoacrylate) (PEG-PHDCA) nanoparticles. Our experimental results showed that PEG-PHDCA nanoparticles could extend the half-life of rHuTNF-alpha to 7.42 h and obviously change the protein biodistribution in tissues, and in particular, increase accumulation of rHuTNF-alpha in tumor. Compared with PHDCA nanoparticles and free rHuTNF-alpha, PEG-PHDCA nanoparticles loaded with rHuTNF-alpha showed higher antitumor potency at the same dose, which might be related to its higher accumulation in tumor tissues and longer plasma circulation time. Therefore, PEG-PHDCA nanoparticles could be an effective carrier for rHuTNF-alpha.
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Affiliation(s)
- Y P Li
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China.
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Li YP, Pei YY, Zhou ZH, Zhang XY, Gu ZH, Ding J, Gao XJ, Zhu JH. PEGylated recombinant human tumor necrosis factor alpha: pharmacokinetics and anti-tumor effects. Biol Pharm Bull 2001; 24:666-70. [PMID: 11411556 DOI: 10.1248/bpb.24.666] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of the present work was to investigate and assess the merit of PEGylated recombinant human tumor necrosis factor-alpha (rHuTNF-alpha) following our previous work. The rHuTNF-alpha was modified using activated polyethylene glycol (PEG), N-succinimidyl succinnate monomethoxy polyethylene glycol (SS-PEG). The pharmacokinetics and anti-tumor effect were investigated. The experimental results showed that PEGylated rHuTNF-alpha could obviously alter in vivo behavioral characteristics of rHuTNF-alpha. Among the synthesized PEG-rHuTNF-alphas with different PEG molecules, PEG20000-rHuTNF-alpha demonstrated the longest circulating half-life (24.8 h) which was about 50 times longer than that of rHuTNF-alpha (28.8 min). In addition, there was much more PEG20000-rHuTNF-alpha distributed into tumor tissues than other PEG-rHuTNF-alphas or rHuTNF-alpha with time, and PEG20000-rHuTNF-alpha also showed the highest anti-tumor potency. These results indicated that PEG20000-rHuTNF-alpha was a useful long circulating molecule with selective localization in tumor tissues and enhanced anti-tumor activity of rHuTNF-alpha.
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Affiliation(s)
- Y P Li
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China.
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Li YP, Pei YY, Zhou ZH, Zhang XY, Gu ZH, Ding J, Zhou JJ, Gao XJ. PEGylated polycyanoacrylate nanoparticles as tumor necrosis factor-alpha carriers. J Control Release 2001; 71:287-96. [PMID: 11295221 DOI: 10.1016/s0168-3659(01)00235-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of this study was to find an effective carrier for recombinant human tumor necrosis factor-alpha (rHuTNF-alpha). The influence of solvent systems containing poly(methoxy-polyethyleneglycol cyanoacrylate-co-n-hexadecyl cyanoacrylate) (PEGylated PHDCA) on the biological activity of rHuTNF-alpha was investigated. The PEGylated PHDCA nanoparticles loading rHuTNF-alpha were prepared with the double emulsion method. The influence of main experimental factors on the entrapment efficiency was evaluated by the Uniform Design. The physicochemical characteristics and in vitro release of rHuTNF-alpha from the nanoparticles were determined. The results showed that serum albumin such as human serum albumin (HSA) or bovine serum albumin (BSA) could play a protective action on rHuTNF-alpha in the preparation process. At > or =2.0% (w/v) HSA concentration, more than 85% of rHuTNF-alpha activity remained and the role of HSA was not affected by copolymer concentrations from 0.5 to 3.0% (w/v). The entrapment efficiency of the nanoparticles was about 60% and the nanoparticle size was about 150 nm. The nanoparticles were spherical in shape and uniform with the value of the zeta potential about -9 mV. The rHuTNF-alpha release from the nanoparticle showed an initial burst and then continued in a sustained fashion. The results showed that the PEGylated PHDCA nanoparticles could be an effective carrier for rHuTNF-alpha.
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Affiliation(s)
- Y P Li
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 200032, China.
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26
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Li YP, Zhou JJ, Zhang XY, Pei YY. Pharmacokinetics of intragastric ipriflavone solid dispersion in rats. Zhongguo Yao Li Xue Bao 1999; 20:1035-8. [PMID: 11270971] [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: 02/19/2023]
Abstract
AIM To evaluate pharmacokinetic behavior of ipriflavone solid dispersion in rats. METHODS The plasma concentrations of ipriflavone in rats were determined by HPLC with UV detector. RESULTS Plasma concentration-time curves after ig ipriflavone solid dispersion 250 mg.kg-1 in rats were fitted with one-compartment model. Pharmacokinetic parameters were as follows: Ke = 0.21 h-1, T1/2Ke = 5.19 h, Ka = 1.71 h-1, T1/2Ka = 0.41 h, Tmax = 0.67 h, Cmax = 429 micrograms.L-1, AUC = 3916 micrograms.h.L-1; The relative bioavailability of ipriflavone solid dispersion was 323%. CONCLUSION Ipriflavone in solid dispersion was absorbed more effectively than that in physical mixture in rats.
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Affiliation(s)
- Y P Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031, China.
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Li YP, Zhang XY, Zhou JJ, Pei YY. Preparation and dissolution property of ipriflavone solid dispersion. Zhongguo Yao Li Xue Bao 1999; 20:957-60. [PMID: 11271000] [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: 04/16/2023]
Abstract
AIM To prepare and identify ipriflavone (IP) solid dispersion, and determine its dissolution property. METHODS The solvent method was used for preparation and differential scanning calorimetry (DSC), X-ray diffraction and infrared spectrophotometry for identification of IP solid dispersion. The dissolution of the dispersion was determined with paddle method. RESULTS The dissolution of IP solid dispersion consisting of IP and povidone-k30 (PVP) (1:8) in artificial gastric juice is 6.15 times as high as that of IP alone. The DSC curves, X-ray diffraction patterns and infrared spectrophotometries of IP have been changed obviously by the dispersion. CONCLUSION The dissolution of IP is increased by solid dispersion method.
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Affiliation(s)
- Y P Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031, China.
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Pei YY, Meng X, Nightingale CH. An improved HPLC assay for ciprofloxacin in biological samples. Zhongguo Yao Li Xue Bao 1994; 15:197-201. [PMID: 7976369] [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: 01/28/2023]
Abstract
A simple and sensitive high performance liquid chromatographic method was developed for determination of ciprofloxacin (Cip) in 0.1 ml of rabbit and human serum and CSF. Separation of Cip and pipemidic acid (internal standard) was achieved on Nucleosil C18 (4.6 mm x 250 mm) using fluorescence detection with lambda exc 274 nm and lambda emi 418 nm. The mobile phase was composed of acetonitrile and phosphate buffer 10 mmol.L-1 (pH 2.7) containing tetrabutylammonium hydrogen sulfate 5 mmol.L-1 (18:82, vol:vol) and the flow rate was set at 1.0 ml.min-1. The retention times were 5.9 min for Cip and 4.0 min for pipemidic acid. The inter-day coefficient of variation was < 6.97% (n = 5) and the intra-day coefficient of variation was < 3.33% (n = 5). The limits of detection were 3 ng.ml-1 serum and 5 ng.ml-1 CSF, (r > or = 0.9996). Application of this method was demonstrated with simultaneous measurements of concentration-time profiles of Cip in rabbit serum and CSF during iv infusions at constant rates of 0.33, 1.0, and 2.5 mg.kg-1.h-1.
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Affiliation(s)
- Y Y Pei
- School of Pharmacy, University of Connecticut, Storrs 06268
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Ku JS, Wu ZY, Fang YS, Pei YY. Clinical study on the pharmacokinetics of lithium carbonate. Int J Clin Pharmacol Ther Toxicol 1987; 25:648-50. [PMID: 3125117] [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: 01/04/2023]
Abstract
To investigate clinical pharmacokinetics of lithium carbonate, 28 hospitalized mental patients and 8 healthy volunteers were studied. The serum concentration/time profile in the single dose peroral experiments could be fitted to a pharmacokinetic model using an open two compartmental system. Three methods, 72-h and 24-h residual method and Ritschel's repeated one-point method were used and the results compared with one another. According to the results of this paper, we suggest the use of Ritschel's repeated one-point method for clinical dosage regimen determination.
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Affiliation(s)
- J S Ku
- Shanghai Mental Health Center, Shanghai Testing Technology Institute, Shanghai Medical University, People's Republic of China
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Abstract
A group of 15 rats received two intravenous bolus doses of antipyrine (15 mg/kg) separated by a 57 hour infusion (with bolus dose) of phenobarbital. Phenobarbital bolus doses and infusion rates were based on a preliminary pharmacokinetic study (7 rats) and were varied to achieve a broad range of steady state levels. Antipyrine and phenobarbital blood levels were measured by high pressure liquid chromatography. Antipyrine kinetics obeyed first order monoexponential decay, and the parameters (clearance, volume, half-life) were determined. Antipyrine clearance increased in all animals during phenobarbital infusions with a per cent increase ranging between 54.6 and 269 per cent. However, no significant correlation was found between the per cent increase in antipyrine clearance and phenobarbital concentration (r = 0.19). The volume of distribution of antipyrine increased in 14 of 15 animals with increases ranging between 7.7 and 45.8 per cent.
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Wang YM, Han YZ, Shao YD, Xi NZ, Pei YY, Chen JG. [Relation of in vitro release of the isosorbide dinitrate to blood pressure changes after administration to anesthetized cats]. Yao Xue Xue Bao 1981; 16:712-4. [PMID: 7331820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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32
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Xi NZ, Tu ZP, Pei YY, Liu DL, Ma LS, Yang XY. [Calcium alginate as matrix for sustained release tablets (author's transl)]. Yao Xue Xue Bao 1981; 16:277-82. [PMID: 7257812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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