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Chen RH, Liang FY, Han P, Lin PL, Lin XJ, Wang JY, Kong XW, Huang XM. [Preliminary outcomes of neoadjuvant chemoimmunotherapy combined with transoral robotic surgery for locally advanced oropharyngeal squamous cell carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:329-334. [PMID: 38599642 DOI: 10.3760/cma.j.cn115330-20231205-00273] [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: 04/12/2024]
Abstract
Objective: To evaluate the efficacy of neoadjuvant chemoimmunotherapy (NACI) combined with transoral robotic surgery (TORS) in the treatment of locally advanced oropharyngeal squamous cell carcinoma (OPSCC). Methods: This was a retrospective study of 15 patients with locally advanced OPSCC who underwent TORS after neoadjuvant therapy (NAT) at the Department of Otolaryngology-Head and Neck Surgery of Sun Yat-sen Memorial Hospital of Sun Yat-sen University from April 2019 to February 2023. There were 12 males and 3 females, aged 31 to 74 years. Twelve cases were tonsil cancer, and 3 cases were tongue base cancer. There were 11 cases in stage Ⅲ and 4 cases in stage Ⅳ. Two patients received neoadjuvant chemotherapy and 13 patients received NACI, with 2 to 3 cycles, and all patients underwent TORS after multidisciplinary team consultation. The clinicopathological characteristics, surgical outcomes, and oncological results were summarized. Results: All surgeries were successfully completed with negative surgical margins, and no case was required conversion surgery. All patients were fed via nasogastric tubes postoperatively, with a median gastric tube stay of 7 days (range: 2-60 days). No tracheotomy was applied. There were no major complications such as postoperative bleeding. Pathological complete response (pCR) was found in 10 cases (76.9%) among the 13 patients with NACI. The follow-up time was 21 months (range: 10-47 months), and there was no death or distant metastasis. One patient with rT0N3M0 tonsil cancer had local recurrence 5 months after surgery. The 2-year overall survival and 2-year disease-free survival were respectively 100.0% and 93.3% in the 15 patients. Conclusion: NACI combined with TORS provides a safe, effective and minimally invasive treatment for patients with locally advanced oropharyngeal squamous cell carcinoma.
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Affiliation(s)
- R H Chen
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - F Y Liang
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - P Han
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - P L Lin
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - X J Lin
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - J Y Wang
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - X W Kong
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
| | - X M Huang
- Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University,Guangzhou 510280, China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou 510280, China
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2
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Sun C, Kang YF, Fang XY, Liu YN, Bu GL, Wang AJ, Li Y, Zhu QY, Zhang H, Xie C, Kong XW, Peng YJ, Lin WJ, Zhou L, Chen XC, Lu ZZ, Xu HQ, Hong DC, Zhang X, Zhong L, Feng GK, Zeng YX, Xu M, Zhong Q, Liu Z, Zeng MS. A gB nanoparticle vaccine elicits a protective neutralizing antibody response against EBV. Cell Host Microbe 2023; 31:1882-1897.e10. [PMID: 37848029 DOI: 10.1016/j.chom.2023.09.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 08/17/2023] [Accepted: 09/20/2023] [Indexed: 10/19/2023]
Abstract
Epstein-Barr virus (EBV) is a global public health concern, as it is known to cause multiple diseases while also being etiologically associated with a wide range of epithelial and lymphoid malignancies. Currently, there is no available prophylactic vaccine against EBV. gB is the EBV fusion protein that mediates viral membrane fusion and participates in host recognition, making it critical for EBV infection in both B cells and epithelial cells. Here, we present a gB nanoparticle, gB-I53-50 NP, that displays multiple copies of gB. Compared with the gB trimer, gB-I53-50 NP shows improved structural integrity and stability, as well as enhanced immunogenicity in mice and non-human primate (NHP) preclinical models. Immunization and passive transfer demonstrate a robust and durable protective antibody response that protects humanized mice against lethal EBV challenge. This vaccine candidate demonstrates significant potential in preventing EBV infection, providing a possible platform for developing prophylactic vaccines for EBV.
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Affiliation(s)
- Cong Sun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Yin-Feng Kang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Xin-Yan Fang
- Cryo-Electron Microscopy Center, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yi-Na Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Guo-Long Bu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Ao-Jie Wang
- Cryo-Electron Microscopy Center, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yan Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Qian-Ying Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Hua Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China; MOE Key Laboratory of Tropical Disease Control, Centre for Infection and Immunity Studies (CIIS), School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Chu Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Xiang-Wei Kong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Yong-Jian Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Wen-Jie Lin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Ling Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Xin-Chun Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Zheng-Zhou Lu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Hui-Qin Xu
- Cryo-Electron Microscopy Center, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Dong-Chun Hong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Xiao Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Ling Zhong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Guo-Kai Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Yi-Xin Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Miao Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
| | - Qian Zhong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China.
| | - Zheng Liu
- Cryo-Electron Microscopy Center, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Mu-Sheng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, China.
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Liu YL, Chen JS, An JH, Cai ZG, Lan JC, Li Y, Kong XW, Zhang MY, Hou R, Wang DH. Characteristics of mesenchymal stem cells and their exosomes derived from giant panda (Ailuropoda melanoleuca) endometrium. In Vitro Cell Dev Biol Anim 2023; 59:550-563. [PMID: 37639049 DOI: 10.1007/s11626-023-00802-1] [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: 05/26/2023] [Accepted: 07/27/2023] [Indexed: 08/29/2023]
Abstract
Conservation of genetic resources is an important way to protect endangered species. At present, mesenchymal stem cells (MSCs) have been isolated from the bone marrow and umbilical cords of giant pandas. However, the types and quantities of preserved cell resources were rare and limited, and none of MSCs was derived from female reproductive organs. Here, we first isolated MSCs from the endometrium of giant panda. These cells showed fibroblast morphology and expressed Sox2, Klf4, Thy1, CD73, CD105, CD44, CD49f, and CD105. Endometrium mesenchymal stem cells (eMSCs) of giant panda could induce differentiation into three germ layers in vitro. RNA-seq analysis showed that 833 genes were upregulated and 716 genes were downregulated in eMSCs compared with skin fibroblast cells. The results of GO and the KEGG analysis of differentially expressed genes (DEGs) were mainly focused on transporter activity, signal transducer activity, pathways regulating pluripotency of stem cells, MAPK signaling pathway, and PI3K-Akt signaling pathway. The genes PLCG2, FRK, JAK3, LYN, PIK3CB, JAK2, CBLB, and MET were identified as hub genes by PPI network analysis. In addition, the exosomes of eMSCs were also isolated and identified. The average diameter of exosomes was 74.26 ± 13.75 nm and highly expressed TSG101 and CD9 but did not express CALNEXIN. A total of 277 miRNAs were detected in the exosomes; the highest expression of miRNA was the has-miR-21-5p. A total of 14461 target genes of the whole miRNAs were predicted and proceeded with functional analysis. In conclusion, we successfully isolated and characterized the giant panda eMSCs and their exosomes, and analyzed their functions through bioinformatics techniques. It not only enriched the conservation types of giant panda cell resources and promoted the protection of genetic diversity, but also laid a foundation for the application of eMSCs and exosomes in the disease treatment of giant pandas.
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Affiliation(s)
- Yu-Liang Liu
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Jia-Song Chen
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Jun-Hui An
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Zhi-Gang Cai
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Jing-Chao Lan
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Yuan Li
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
| | - Xiang-Wei Kong
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Ming-Yue Zhang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Rong Hou
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China
| | - Dong-Hui Wang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Province, Chengdu, 610081, China.
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Province, Chengdu, 610081, China.
- Sichuan Academy of Giant Panda, Sichuan Province, Chengdu, 610081, China.
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Zhou CJ, Wang DH, Kong XW, Han Z, Hao X, Wang XY, Wen X, Liang CG. Protein regulator of cytokinesis 1 regulates chromosome dynamics and cytoplasmic division during mouse oocyte meiotic maturation and early embryonic development. FEBS J 2021; 287:5130-5147. [PMID: 32562308 DOI: 10.1111/febs.15458] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 06/01/2020] [Accepted: 06/15/2020] [Indexed: 11/28/2022]
Abstract
In contrast to the homeokinesis of mitosis, asymmetric division of cytoplasm is the conspicuous feature of meiosis in mammalian oocytes. Protein regulator of cytokinesis 1 (PRC1) is an important regulator during mitotic spindle assembly and cytoplasmic division, but its functions in oocyte meiosis and early embryo development have not been fully elucidated. In this study, we detected PRC1 expression and localization and revealed a nuclear, spindle midzone-related dynamic pattern throughout meiotic and mitotic progressions. Treatment of oocytes with the reagents taxol or nocodazole disturbed the distribution of PRC1 in metaphase II oocytes. Further, PRC1 depletion led to failure of first polar body (PB1) extrusion and spindle migration, aneuploidy and defective kinetochore-microtubule attachment and spindle assembly. Overexpression of PRC1 resulted in PB1 extrusion failure, aneuploidy and serious defects of spindle assembly. To investigate PRC1 function in early embryos, we injected Prc1 morpholino into zygotes and 2-cell stage embryos. Depletion of PRC1 in zygotes impaired 4-cell, morula and blastocyst formation. Loss of PRC1 in single or double blastomeres in 2-cell stage embryos significantly impaired cell division, indicating its indispensable role in early embryo development. Co-immunoprecipitation showed that PRC1 interacts with polo-like kinase 1 (PLK1), and functional knockdown and rescue experiments demonstrated that PRC1 recruits PLK1 to the spindle midzone to regulate cytoplasmic division during meiosis. Finally, kinesin family member 4 knockdown downregulates PRC1 expression and leads to PRC1 localization failure. Taken together, our data suggest PRC1 plays an important role during oocyte maturation and early embryonic development by regulating chromosome dynamics and cytoplasmic division.
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Affiliation(s)
- Cheng-Jie Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Dong-Hui Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China.,Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Sichuan Academy of Giant Panda, Chengdu, Sichuan Province, China
| | - Xiang-Wei Kong
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Zhe Han
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Xin Hao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Xing-Yue Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Xin Wen
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, China
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Kang YF, Zhang X, Yu XH, Zheng Q, Liu Z, Li JP, Sun C, Kong XW, Zhu QY, Chen HW, Huang Y, Xu M, Zhong Q, Zeng YX, Zeng MS. Immunization with a Self-Assembled Nanoparticle Vaccine Elicits Potent Neutralizing Antibody Responses against EBV Infection. Nano Lett 2021; 21:2476-2486. [PMID: 33683126 DOI: 10.1021/acs.nanolett.0c04687] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Epstein-Barr virus (EBV) infection is a global health concern infecting over 90% of the population. However, there is no currently available vaccine. EBV primarily infects B cells, where the major glycoprotein 350 (gp350) is the main target of neutralizing antibodies. Given the advancement of nanoparticle vaccines, we describe rationally designed vaccine modalities presenting 60 copies of gp350 on self-assembled nanoparticles in a repetitive array. In a mouse model, gp350s on lumazine synthase (LS) and I3-01 adjuvanted with MF59 or aluminum hydroxide (Alhydrogel) elicited over 65- to 133-fold higher neutralizing antibody titers than the corresponding gp350 monomer to EBV. Furthermore, immunization with gp350D123-LS and gp350D123-I3-01 vaccine induced a Th2-biased response. For the nonhuman primate model, gp350D123-LS in MF59 elicited higher titers of total IgG and neutralizing antibodies than the monomeric gp350D123. Overall, these results support gp350D123-based nanoparticle vaccine design as a promising vaccine candidate for potent protection against EBV infection.
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Affiliation(s)
- Yin-Feng Kang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Xiao Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Xiao-Hui Yu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Qingbing Zheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, P. R. China
| | - Zhe Liu
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, P. R. China
| | - Jiang-Ping Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Cong Sun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Xiang-Wei Kong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Qian-Ying Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Hai-Wen Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Yang Huang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Science, Xiamen University, Xiamen 361102, P. R. China
| | - Miao Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Qian Zhong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Yi-Xin Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
| | - Mu-Sheng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou 510060, P. R. China
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Kang YF, Sun C, Zhuang Z, Yuan RY, Zheng Q, Li JP, Zhou PP, Chen XC, Liu Z, Zhang X, Yu XH, Kong XW, Zhu QY, Zhong Q, Xu M, Zhong NS, Zeng YX, Feng GK, Ke C, Zhao JC, Zeng MS. Rapid Development of SARS-CoV-2 Spike Protein Receptor-Binding Domain Self-Assembled Nanoparticle Vaccine Candidates. ACS Nano 2021; 15:2738-2752. [PMID: 33464829 PMCID: PMC7839421 DOI: 10.1021/acsnano.0c08379] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [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: 10/06/2020] [Accepted: 01/13/2021] [Indexed: 05/18/2023]
Abstract
The coronavirus disease pandemic of 2019 (COVID-19) caused by the novel SARS-CoV-2 coronavirus resulted in economic losses and threatened human health worldwide. The pandemic highlights an urgent need for a stable, easily produced, and effective vaccine. SARS-CoV-2 uses the spike protein receptor-binding domain (RBD) to bind its cognate receptor, angiotensin-converting enzyme 2 (ACE2), and initiate membrane fusion. Thus, the RBD is an ideal target for vaccine development. In this study, we designed three different RBD-conjugated nanoparticle vaccine candidates, namely, RBD-Ferritin (24-mer), RBD-mi3 (60-mer), and RBD-I53-50 (120-mer), via covalent conjugation using the SpyTag-SpyCatcher system. When mice were immunized with the RBD-conjugated nanoparticles (NPs) in conjunction with the AddaVax or Sigma Adjuvant System, the resulting antisera exhibited 8- to 120-fold greater neutralizing activity against both a pseudovirus and the authentic virus than those of mice immunized with monomeric RBD. Most importantly, sera from mice immunized with RBD-conjugated NPs more efficiently blocked the binding of RBD to ACE2 in vitro, further corroborating the promising immunization effect. Additionally, the vaccine has distinct advantages in terms of a relatively simple scale-up and flexible assembly. These results illustrate that the SARS-CoV-2 RBD-conjugated nanoparticles developed in this study are a competitive vaccine candidate and that the carrier nanoparticles could be adopted as a universal platform for a future vaccine development.
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Affiliation(s)
- Yin-Feng Kang
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Cong Sun
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Zhen Zhuang
- State Key Laboratory of Respiratory Disease, National
Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, The First Affiliated Hospital of Guangzhou Medical
University, Guangzhou 510182, P. R. China
| | - Run-Yu Yuan
- Guangdong Provincial Institution of Public Health,
Guangdong Provincial Center for Disease Control and
Prevention, Guangzhou 511430, P. R. China
| | - Qingbing Zheng
- State Key Laboratory of Molecular Vaccinology and
Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in
Infectious Diseases, School of Public Health, Xiamen
University, Xiamen 361102, P. R. China
| | - Jiang-Ping Li
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Ping-Ping Zhou
- Guangdong Provincial Institution of Public Health,
Guangdong Provincial Center for Disease Control and
Prevention, Guangzhou 511430, P. R. China
| | - Xin-Chun Chen
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Zhe Liu
- Guangdong Provincial Institution of Public Health,
Guangdong Provincial Center for Disease Control and
Prevention, Guangzhou 511430, P. R. China
| | - Xiao Zhang
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Xiao-Hui Yu
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Xiang-Wei Kong
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Qian-Ying Zhu
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Qian Zhong
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Miao Xu
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Nan-Shan Zhong
- State Key Laboratory of Respiratory Disease, National
Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, The First Affiliated Hospital of Guangzhou Medical
University, Guangzhou 510182, P. R. China
| | - Yi-Xin Zeng
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Guo-Kai Feng
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
| | - Changwen Ke
- Guangdong Provincial Institution of Public Health,
Guangdong Provincial Center for Disease Control and
Prevention, Guangzhou 511430, P. R. China
| | - Jin-Cun Zhao
- State Key Laboratory of Respiratory Disease, National
Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, The First Affiliated Hospital of Guangzhou Medical
University, Guangzhou 510182, P. R. China
| | - Mu-Sheng Zeng
- State Key Laboratory of Oncology in South China,
Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of
Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Experimental Research,
Sun Yat-sen University Cancer Center, Sun Yat-sen University,
Guangzhou 510060, P. R. China
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7
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Wang DH, Zhou HX, Liu SJ, Zhou CJ, Kong XW, Han Z, Liang CG. Glial cell line-derived neurotrophic factor supplementation promotes bovine in vitro oocyte maturation and early embryo development. Theriogenology 2018; 113:92-101. [PMID: 29477014 DOI: 10.1016/j.theriogenology.2018.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 02/09/2018] [Accepted: 02/15/2018] [Indexed: 12/13/2022]
Abstract
Paracrine factors such as glial cell line-derived neurotrophic factor (GDNF), which was originally derived from the supernatants of a rat glioma cell line, play pivotal roles in oocyte maturation and early embryo development in mammals, such as mice, rats, pigs, sheep, and even humans. However, whether GDNF facilitates in vitro oocyte maturation or early embryo development in bovines is not yet known. We show for the first time that GDNF and its receptor, GDNF family receptor alpha-1 (GFRA1), are presented in ovarian follicles at different stages as well as during oocyte maturation and early embryo development. Immunostaining results revealed the subcellular localizations of GDNF and GFRA1 in oocytes throughout follicle development, first in germinal vesicles and during blastocyst embryo stages. The ability of exogenously applied GDNF to promote oocyte maturation and early embryo development was evaluated in culture, where we found that an optimal concentration of 50 ng/mL promotes the maturation of cumulus-oocyte complexes and the nuclei of denuded oocytes as well as the development of embryos after IVF. To further investigate the potential mechanism by which GDNF promotes oocyte maturation, bovine oocytes were treated with morpholinos targeting Gfra1. The suppression of GFRA1 presence blocked endogenous and exogenous GDNF functions, indicating that the effects of GDNF that are essential and beneficial for bovine oocyte maturation and early embryo development occur through this receptor. Furthermore, we show that supplementation with GDNF improves the efficiency of bovine IVF embryo production.
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Affiliation(s)
- Dong-Hui Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Hong-Xia Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Shu-Jun Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Jie Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Xiang-Wei Kong
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Zhe Han
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China.
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8
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Lu A, Zhou CJ, Wang DH, Han Z, Kong XW, Ma YZ, Yun ZZ, Liang CG. Cytoskeleton-associated protein 5 and clathrin heavy chain binding regulates spindle assembly in mouse oocytes. Oncotarget 2017; 8:17491-17503. [PMID: 28177917 PMCID: PMC5392264 DOI: 10.18632/oncotarget.15097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 12/02/2016] [Accepted: 01/24/2017] [Indexed: 11/25/2022] Open
Abstract
Mammalian oocyte meiotic maturation is the precondition of early embryo development. Lots of microtubules (MT)-associated proteins participate in oocyte maturation process. Cytoskeleton-associated protein 5 (CKAP5) is a member of the XMAP215 family that regulates microtubule dynamics during mitosis. However, its role in meiosis has not been fully studied. Here, we investigated the function of CKAP5 in mouse oocyte meiotic maturation and early embryo development. Western blot showed that CKAP5 expression increased from GVBD, maintaining at high level at metaphase, and decreased after late 1-cell stage. Confocal microscopy showed there is no specific accumulation of CKAP5 at interphase (GV, PN or 2-cell stage). However, once cells enter into meiotic or mitotic division, CKAP5 was localized at the whole spindle apparatus. Treatment of oocytes with the tubulin-disturbing reagents nocodazole (induces MTs depolymerization) or taxol (prevents MTs depolymerization) did not affect CKAP5 expression but led to a rearrangement of CKAP5. Further, knock-down of CKAP5 resulted in a failure of first polar body extrusion, serious defects in spindle assembly, and failure of chromosome alignment. Loss of CKAP5 also decreased early embryo development potential. Furthermore, co-immunoprecipitation showed that CKAP5 bound to clathrin heavy chain 1 (CLTC). Taken together, our results demonstrate that CKAP5 is important in oocyte maturation and early embryo development, and CKAP5 might work together with CLTC in mouse oocyte maturation.
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Affiliation(s)
- Angeleem Lu
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
| | - Cheng-Jie Zhou
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
| | - Dong-Hui Wang
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
| | - Zhe Han
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
| | - Xiang-Wei Kong
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
| | - Yu-Zhen Ma
- Inner Mongolia People's Hospital, Hohhot, Inner Mongolia, People's Republic of China
| | - Zhi-Zhong Yun
- Inner Mongolia People's Hospital, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Guang Liang
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Inner Mongolia, People's Republic of China
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9
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Kong XW, Wang DH, Zhou CJ, Zhou HX, Liang CG. Loss of function of KIF1B impairs oocyte meiotic maturation and early embryonic development in mice. Mol Reprod Dev 2016; 83:1027-1040. [PMID: 27696585 DOI: 10.1002/mrd.22744] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 09/14/2016] [Indexed: 02/05/2023]
Abstract
Kinesin family member 1B (KIF1B) is an important microtubule-dependent monomeric motor in mammals, although little is known about its role in meiosis. We profiled KIF1B expression and localization during oocyte maturation and early embryonic development in mice, revealing a dynamic pattern throughout meiotic progression. Depletion or inhibition of KIF1B leads to abnormal polar body extrusion, disordered spindle dynamics, defects in chromosome congression, increased aneuploidy, and impaired embryonic development. Further, KIF1B depletion affects the distribution of mitochondria and abundance of ATP. Taken together, our study demonstrates that mouse KIF1B is important for spindle assembly, chromosome congression, and mitochondrial distribution during oocyte maturation and early embryonic development. Mol. Reprod. Dev. 83: 1027-1040, 2016 © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Xiang-Wei Kong
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Dong-Hui Wang
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Jie Zhou
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Hong-Xia Zhou
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Guang Liang
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
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10
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Zhou CJ, Wu SN, Shen JP, Wang DH, Kong XW, Lu A, Li YJ, Zhou HX, Zhao YF, Liang CG. The beneficial effects of cumulus cells and oocyte-cumulus cell gap junctions depends on oocyte maturation and fertilization methods in mice. PeerJ 2016; 4:e1761. [PMID: 26966678 PMCID: PMC4782716 DOI: 10.7717/peerj.1761] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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: 11/17/2015] [Accepted: 02/13/2016] [Indexed: 12/19/2022] Open
Abstract
Cumulus cells are a group of closely associated granulosa cells that surround and nourish oocytes. Previous studies have shown that cumulus cells contribute to oocyte maturation and fertilization through gap junction communication. However, it is not known how this gap junction signaling affects in vivo versus in vitro maturation of oocytes, and their subsequent fertilization and embryonic development following insemination. Therefore, in our study, we performed mouse oocyte maturation and insemination using in vivo- or in vitro-matured oocyte-cumulus complexes (OCCs, which retain gap junctions between the cumulus cells and the oocytes), in vitro-matured, denuded oocytes co-cultured with cumulus cells (DCs, which lack gap junctions between the cumulus cells and the oocytes), and in vitro-matured, denuded oocytes without cumulus cells (DOs). Using these models, we were able to analyze the effects of gap junction signaling on oocyte maturation, fertilization, and early embryo development. We found that gap junctions were necessary for both in vivo and in vitro oocyte maturation. In addition, for oocytes matured in vivo, the presence of cumulus cells during insemination improved fertilization and blastocyst formation, and this improvement was strengthened by gap junctions. Moreover, for oocytes matured in vitro, the presence of cumulus cells during insemination improved fertilization, but not blastocyst formation, and this improvement was independent of gap junctions. Our results demonstrate, for the first time, that the beneficial effect of gap junction signaling from cumulus cells depends on oocyte maturation and fertilization methods.
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Affiliation(s)
- Cheng-Jie Zhou
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Sha-Na Wu
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Jiang-Peng Shen
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Dong-Hui Wang
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Xiang-Wei Kong
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Angeleem Lu
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Yan-Jiao Li
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Hong-Xia Zhou
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Yue-Fang Zhao
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
| | - Cheng-Guang Liang
- The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China
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11
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He R, Zheng WS, Hu BG, Kong XW. Two-stage nonnegative sparse representation for large-scale face recognition. IEEE Trans Neural Netw Learn Syst 2013; 24:35-46. [PMID: 24808205 DOI: 10.1109/tnnls.2012.2226471] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This paper proposes a novel nonnegative sparse representation approach, called two-stage sparse representation (TSR), for robust face recognition on a large-scale database. Based on the divide and conquer strategy, TSR decomposes the procedure of robust face recognition into outlier detection stage and recognition stage. In the first stage, we propose a general multisubspace framework to learn a robust metric in which noise and outliers in image pixels are detected. Potential loss functions, including L1 , L2,1, and correntropy are studied. In the second stage, based on the learned metric and collaborative representation, we propose an efficient nonnegative sparse representation algorithm to find an approximation solution of sparse representation. According to the L1 ball theory in sparse representation, the approximated solution is unique and can be optimized efficiently. Then a filtering strategy is developed to avoid the computation of the sparse representation on the whole large-scale dataset. Moreover, theoretical analysis also gives the necessary condition for nonnegative least squares technique to find a sparse solution. Extensive experiments on several public databases have demonstrated that the proposed TSR approach, in general, achieves better classification accuracy than the state-of-the-art sparse representation methods. More importantly, a significant reduction of computational costs is reached in comparison with sparse representation classifier; this enables the TSR to be more suitable for robust face recognition on a large-scale dataset.
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Abstract
This letter proposes a new multiple linear regression model using regularized correntropy for robust pattern recognition. First, we motivate the use of correntropy to improve the robustness of the classical mean square error (MSE) criterion that is sensitive to outliers. Then an l1 regularization scheme is imposed on the correntropy to learn robust and sparse representations. Based on the half-quadratic optimization technique, we propose a novel algorithm to solve the nonlinear optimization problem. Second, we develop a new correntropy-based classifier based on the learned regularization scheme for robust object recognition. Extensive experiments over several applications confirm that the correntropy-based l1 regularization can improve recognition accuracy and receiver operator characteristic curves under noise corruption and occlusion.
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Affiliation(s)
- Ran He
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China, and School of Electronic and Information Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei-Shi Zheng
- School of Information Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China, and Department of Computer Science, Queen Mary University of London, London, U.K
| | - Bao-Gang Hu
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiang-Wei Kong
- School of Electronic and Information Engineering, Dalian University of Technology, Dalian 116024, China
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13
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Abstract
Principal component analysis (PCA) minimizes the mean square error (MSE) and is sensitive to outliers. In this paper, we present a new rotational-invariant PCA based on maximum correntropy criterion (MCC). A half-quadratic optimization algorithm is adopted to compute the correntropy objective. At each iteration, the complex optimization problem is reduced to a quadratic problem that can be efficiently solved by a standard optimization method. The proposed method exhibits the following benefits: 1) it is robust to outliers through the mechanism of MCC which can be more theoretically solid than a heuristic rule based on MSE; 2) it requires no assumption about the zero-mean of data for processing and can estimate data mean during optimization; and 3) its optimal solution consists of principal eigenvectors of a robust covariance matrix corresponding to the largest eigenvalues. In addition, kernel techniques are further introduced in the proposed method to deal with nonlinearly distributed data. Numerical results demonstrate that the proposed method can outperform robust rotational-invariant PCAs based on L(1) norm when outliers occur.
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Affiliation(s)
- Ran He
- National Laboratory of Pattern Recognition, Institute of Automation Chinese Academy of Sciences, Beijing 100190, China.
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