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Zhou Q, Liang J, Yang T, Liu J, Li B, Li Y, Fan Z, Wang W, Chen W, Yuan S, Xu M, Xu Q, Luan Z, Xia Z, Zhou P, Huang Y, Chen L. Carfilzomib modulates tumor microenvironment to potentiate immune checkpoint therapy for cancer. EMBO Mol Med 2022; 14:e14502. [PMID: 34898004 PMCID: PMC8749493 DOI: 10.15252/emmm.202114502] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/31/2021] [Accepted: 11/05/2021] [Indexed: 01/01/2023] Open
Abstract
Impressive clinical benefit is seen in clinic with PD-1 inhibitors on portion of cancer patients. Yet, there remains an urgent need to develop effective synergizers to expand their clinical application. Tumor-associated macrophage (TAM), a type of M2-polarized macrophage, eliminates or suppresses T-cell-mediated anti-tumor responses. Transforming TAMs into M1 macrophages is an attractive strategy of anti-tumor therapy. Here, we conducted a high-throughput screening and found that Carfilzomib potently drove M2 macrophages to express M1 cytokines, phagocytose tumor cells, and present antigens to T cells. Mechanistically, Carfilzomib elicited unfolded protein response (UPR), activated IRE1α to recruit TRAF2, and activated NF-κB to transcribe genes encoding M1 markers in M2 macrophages. In vivo, Carfilzomib effectively rewired tumor microenvironment through reprogramming TAMs into M1-like macrophages and shrank autochthonous lung cancers in transgenic mouse model. More importantly, Carfilzomib synergized with PD-1 antibody to almost completely regress autochthonous lung cancers. Given the safety profiles of Carfilzomib in clinic, our work suggested a potentially immediate application of combinational treatment with Carfilzomib and PD-1 inhibitors for patients with solid tumors.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Jinxia Liang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Tong Yang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Jin Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Bo Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
- MOE Key Laboratory of Glucolipid Metabolic DiseasesGuangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineCollege of Chinese Medicine ResearchGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Yingchang Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Zhenzhen Fan
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Weida Wang
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Wensheng Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
| | - Sujing Yuan
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Meng Xu
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
| | - Qigui Xu
- Translational medicine laboratoryPeople’s Hospital of Yangjiang CityGuangdongChina
| | - Zhidong Luan
- Translational medicine laboratoryPeople’s Hospital of Yangjiang CityGuangdongChina
| | - Zhongjun Xia
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Penghui Zhou
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Yadong Huang
- Guangdong Province Key Laboratory of Bioengineering MedicineJinan UniversityGuangzhouChina
| | - Liang Chen
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
- Guangdong Province Key Laboratory of Bioengineering MedicineJinan UniversityGuangzhouChina
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Tang XF, Jing YF, Lu W, Huang YZ, Wu NH, Luan Z. [A clinical study of haploidentical hematopoietic stem cell transplantation in the treatment of pediatric patients with acquired severe aplastic anemia: single center experience]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:301-305. [PMID: 31104441 PMCID: PMC7343012 DOI: 10.3760/cma.j.issn.0253-2727.2019.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
目的 探讨单倍型造血干细胞移植(haplo-HSCT)治疗儿童获得性重型再生障碍性贫血(SAA)的疗效。 方法 回顾性分析2011年12月1日至2017年12月1日接受haplo-HSCT的59例SAA患者。 结果 ①全部59例SAA患儿中男37例、女22例,中位年龄4.5(1.2~14.8)岁,中位体重43(12~80)kg;SAA-Ⅰ型47例,SAA-Ⅱ型12例,26例为极重型再生障碍性贫血(VSAA);首次移植56例,二次移植3例。②预处理选用白消安+环磷酰胺+抗胸腺细胞球蛋白(ATG)方案或白消安+氟达拉滨+环磷酰胺+ATG方案;采用环孢素A(CsA)+霉酚酸酯+甲氨蝶呤方案预防急性GVHD;回输单个核细胞中位数为15.60(7.74~21.04)×108/kg,CD34+细胞中位数为4.86(3.74~7.14)×106/kg。③全部59例患儿均获得中性粒细胞和血小板植入。中性粒细胞植入中位时间为13(10~19)d,血小板植入中位时间为19(9~62)d。④Ⅰ~Ⅱ、Ⅲ/Ⅳ度急性GVHD发生率分别为45.76%(27/59)、13.56%(8/59),慢性GVHD发生率为8.47%(5/59)。巨细胞病毒血症发生率为59.32%(35/59)、EB病毒血症发生率为28.81%(17/59)。⑤中位随访时间30(8~80)个月,57例无病存活,2例死亡(均死于GVHD),5年总生存率、无失败生存率均为(96.4±2.5)%。 结论 haplo-HSCT是儿童SAA疗效较好的治疗方法。
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Affiliation(s)
- X F Tang
- Department of Paediatrics, Sixth Medical Center of PLA General Hospital of the People Liberation Army. Beijing 100048, China
| | - Y F Jing
- Department of Paediatrics, Sixth Medical Center of PLA General Hospital of the People Liberation Army. Beijing 100048, China
| | - W Lu
- Department of Paediatrics, Sixth Medical Center of PLA General Hospital of the People Liberation Army. Beijing 100048, China
| | - Y Z Huang
- Hematology Department Laboratory, Sixth Medical Center of PLA General Hospital of the People Liberation Army, Beijing 100048, China
| | - N H Wu
- Department of Paediatrics, Sixth Medical Center of PLA General Hospital of the People Liberation Army. Beijing 100048, China
| | - Z Luan
- Department of Paediatrics, Sixth Medical Center of PLA General Hospital of the People Liberation Army. Beijing 100048, China
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Ren G, Dong Z, Liu C, Liu Y, Luan Z, Liu Q, Bao X, Wang S. [The expression of phenylalanine hydroxylase in the brain of ragworm Neanthes japonica (Polychaeta, Annelida)]. Sheng Wu Gong Cheng Xue Bao 2016; 32:518-526. [PMID: 28853273 DOI: 10.13345/j.cjb.150550] [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: 06/07/2023]
Abstract
Phenylalanine hydroxylase (PAH) is a member of aromatic amino acid hydroxylase (AAAHs) family, and catalyze phenylalanine (Phe) into tyrosine (Tyr). Using immunological and RT-PCR methods to prove the existence of phenylalanine hydroxylase (PAH) gene in the brain of Neanthes japonica in protein and nucleic acid level. Using Western blotting to detect the pah immunogenicity of Neanthes japonica. Making paraffin sections and using immunohistochemical technique to identify the presence and distribution of the phenylalanine hydroxylase gene in the brain of Neanthes japonica. Clone pah gene from the brain of Neanthes japonica by RT-PCR, constructing plasmid and transferring into E. coli to amplification, picking a single homogeneous colony, double digesting then making sequence and comparing homology. Western blotting results showed that the expression of the protein is present in Neanthes japonica brain, immunohistochemistry technique results showed that phenylalanine hydroxylase mainly expressed in abdominal of forebrain, dorsal and sides of midbrain. RT-PCR technique results showed that the phenylalanine hydroxylase exist in the brain of Neanthes japonica and has a high homology with others animals. PAH is present in the lower organisms Neanthes japonica, in protein and nucleic acid level. Which provide the foundation for further study the evolution of aromatic amino acid hydroxylase genes in invertebrate.
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Affiliation(s)
- Guimin Ren
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
| | - Zhe Dong
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
| | - Chao Liu
- Department of Developmental Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
| | - Yimeng Liu
- Department of Developmental Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
| | - Zhidong Luan
- Department of Developmental Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
| | - Qi Liu
- Laboratory of Insect Brain Biology, Northeast Normal University, Changchun 130024, Jilin, China
| | - Xuexiang Bao
- Laboratory of Insect Brain Biology, Northeast Normal University, Changchun 130024, Jilin, China
| | - Shun Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China
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He X, Xu G, Liang W, Liu B, Xu Y, Luan Z, Lu Y, Ko DSC, Manyalich M, Schroder PM, Guo Z. Nomogram for Predicting Time to Death After Withdrawal of Life-Sustaining Treatment in Patients With Devastating Neurological Injury. Am J Transplant 2015; 15:2136-42. [PMID: 25810114 DOI: 10.1111/ajt.13231] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 01/15/2015] [Accepted: 01/16/2015] [Indexed: 01/25/2023]
Abstract
Reliable prediction of time of death after withdrawal of life-sustaining treatment in patients with devastating neurological injury is crucial to successful donation after cardiac death. Herein, we conducted a study of 419 neurocritical patients who underwent life support withdrawal at four neurosurgical centers in China. Based on a retrospective cohort, we used multivariate Cox regression analysis to identify prognostic factors for patient death, which were then integrated into a nomogram. The model was calibrated and validated using data from an external retrospective cohort and a prospective cohort. We identified 10 variables that were incorporated into a nomogram. The C-indexes for predicting the 60-min death probability in the training, external validation and prospective validation cohorts were 0.96 (0.93-0.98), 0.94 (0.91-0.97), and 0.99 (0.97-1.00), respectively. The calibration plots after WLST showed an optimal agreement between the prediction of time to death by the nomogram and the actual observation for all cohorts. Then we identified 22, 26 and 37 as cut-points for risk stratification into four groups. Kaplan-Meier curves indicated distinct prognoses between patients in the different risk groups (p < 0.001). In conclusion, we have developed and validated a nomogram to accurately identify potential cardiac death donors in neurocritical patients in a Chinese population.
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Affiliation(s)
- X He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - G Xu
- Department of Neurosurgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - W Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - B Liu
- Department of Neurosurgery, The People's Hospital of Dongguan City, Dongguan, China
| | - Y Xu
- Department of Neurosurgery, The First People's Hospital of Foshan City, Foshan, China
| | - Z Luan
- Department of Neurosurgery, Jiangmen Central Hospital, Jiangmen, China
| | - Y Lu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - D S C Ko
- Departments of Urology and Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - M Manyalich
- TPM-DTI Foundation, Parc Científic de Barcelona, Barcelona, Spain
| | - P M Schroder
- University of Toledo College of Medicine, Toledo, OH
| | - Z Guo
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Zhao S, Li H, Wang Q, Su C, Wang G, Song H, Zhao L, Luan Z, Su R. The role of c-Src in the invasion and metastasis of hepatocellular carcinoma cells induced by association of cell surface GRP78 with activated α2M. BMC Cancer 2015; 15:389. [PMID: 25958313 PMCID: PMC4455704 DOI: 10.1186/s12885-015-1401-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 11/13/2014] [Accepted: 04/29/2015] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Emerging data have suggested that cell surface GRP78 is a multifunctional receptor and has been linked to proliferative and antiapoptotic signaling cascades. Activated α2-macroglobin (α2M*) is a natural circulating ligand of cell surface GRP78. Association of cell surface GRP78 with α2M* is involved in the regulation of cell proliferation, survival and apoptosis in human cancers. METHODS The invasion and metastasis of HCC cells were examined using transwell and wound healing assay; Cell surface expression of GRP78 was detected by in cell western assay. Translocation of GRP78 from cytosol to cell surface was observed by transfection of GRP78-EGFP plus TRIRC-WGA staining. The levels of Src, phosphor-Src, FAK, phospho-FAK, EGFR, phospho-EGFR, phospho-Cortactin, phospho-Paxillin were determined by western blot. Cell surface expression of GRP78 in HCC tissue samples was observed by immunofluorescence. The distribution of Paxillin and Cortactin in HCC cells was also observed by immunofluorescence. The interaction between GRP78 and Src were detected by far-western blot, co-immunoprecipitation and GST pulldown. GRP78 mRNA was detected by RT-PCR. RESULTS In the current study, we showed that association of cell surface GRP78 with α2M* stimulated the invasion and metastasis of HCC. Cell surface GRP78 could interact directly with c-Src, promoted the phosphorylation of c-Src at Y416. Inhibition of the tyrosine kinase activity of c-Src with PP2 reverted the stimulatory effect caused by association of cell surface GRP78 with α2M*. Moreover, association of cell surface GRP78 with α2M* facilitates the interaction between EGFR and c-Src and consequently phosphorylated EGFR at Y1101 and Y845, promoting the invasion and metastasis of HCCs. However, inhibition of the tyrosine kinase of c-Src do not affect the interaction between EGFR and Src. CONCLUSION c-Src plays a critical role in the invasion and metastasis of HCC induced by association of cell surface GRP78 with α2M*. Cell surface GRP78 directly binds and phosphorylates c-Src. As a consequence, c-Src phosphorylated EGFR, promoting the invasion and metastasis of HCCs.
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Affiliation(s)
- Song Zhao
- Central laboratory, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Hongdan Li
- Central laboratory, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Qingjun Wang
- Oncology Department, the First Affiliated Hospital of Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Chang Su
- Veterinary Medicine Department, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Guan Wang
- Central laboratory, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Huijuan Song
- Central laboratory, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China.
| | - Liang Zhao
- Pharmacy Department, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121000, China.
| | - Zhidong Luan
- Development Department, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121000, China.
| | - Rongjian Su
- Central laboratory, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121001, China. .,Cell Biology AND Genetic Department, Liaoning Medical College, No 40 Songpo Road, Jinzhou, 121000, China.
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Hu Z, Wan X, Hao R, Zhang H, Li L, Li L, Xie Q, Wang P, Gao Y, Chen S, Wei M, Luan Z, Zhang A, Huang N, Chen L. Phosphorylation of mutationally introduced tyrosine in the activation loop of HER2 confers gain-of-function activity. PLoS One 2015; 10:e0123623. [PMID: 25853726 PMCID: PMC4390223 DOI: 10.1371/journal.pone.0123623] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/19/2015] [Indexed: 01/09/2023] Open
Abstract
Amplification, overexpression, and somatic mutation of the HER2 gene have been reported to play a critical role in tumorigenesis of various cancers. The HER2 H878Y mutation was recently reported in 11% of hepatocellular carcinoma (HCC) patients. However, its functional impact on the HER2 protein and its role in tumorigenesis has not been determined. Here, we show that HER2 H878Y is a gain-of-function mutation. Y878 represents a phosphorylation site, and phospho-Y878 interacts with R898 residue to stabilize the active conformation of HER2, thereby enhancing its kinase activity. H878Y mutant is transforming and the transformed cells are sensitive to HER2 kinase inhibitors. Thus, our study reveals the following novel mechanism underlying the tumorigenic function of the HER2 H878Y mutation: the introduction of a tyrosine residue into the kinase activation loop via mutagenesis modulates the conformation of the kinase, thereby enhancing its activity.
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Affiliation(s)
- Zexi Hu
- College of Life Sciences, Beijing Normal University, Beijing, 100875, China
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Xiaobo Wan
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Rui Hao
- BeiGene (Beijing) Co., Ltd., Beijing, 102206, China
| | - Heng Zhang
- The Central Hospital of Lishui City, Zhejiang, 323000 China
| | - Li Li
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Qiang Xie
- Fuzhou Pulmonary Hospital of Fujian, Fujian, 350008, China
| | - Peng Wang
- Beijing Ditan Hospital, Beijing, 100015, China
| | - Yibo Gao
- Department of Thoracic Surgery, Cancer Institute and Hospital Chinese Academy of Medical Sciences, Beijing, 100021, China
| | - She Chen
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Min Wei
- BeiGene (Beijing) Co., Ltd., Beijing, 102206, China
| | - Zhidong Luan
- Liaoning Medical University, Jinzhou, Liaoning, 121001, China
| | - Aiqun Zhang
- The General Hospital of People’s Liberation Army (301 Hospital), Fuxing Road, Beijing, 100853, China
| | - Niu Huang
- National Institute of Biological Sciences, Beijing. Beijing, 102206, China
| | - Liang Chen
- Collaborative Innovation Center of Cancer Medicine, National Institute of Biological Sciences, Beijing, Beijing, 102206, China
- * E-mail:
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Rim CH, Fu Z, Bao L, Chen H, Zhang D, Luo Q, Ri HC, Huang H, Luan Z, Zhang Y, Cui C, Xiao L, Jong UM. The effect of the number of transferred embryos, the interval between nuclear transfer and embryo transfer, and the transfer pattern on pig cloning efficiency. Anim Reprod Sci 2013; 143:91-6. [PMID: 24238725 DOI: 10.1016/j.anireprosci.2013.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 09/25/2013] [Accepted: 10/16/2013] [Indexed: 10/26/2022]
Abstract
To improve the efficiency of producing cloned pigs, we investigated the influence of the number of transferred embryos, the culturing interval between nuclear transfer (NT) and embryo transfer, and the transfer pattern (single oviduct or double oviduct) on cloning efficiency. The results demonstrated that transfer of either 150-200 or more than 200NT embryos compared to transfer of 100-150 embryos resulted in a significantly higher pregnancy rate (48 ± 16, 50 ± 16 vs. 29 ± 5%, p<0.05) and average litter size (4.1 ± 2.3, 7 ± 3.6 vs. 2.5 ± 0.5). In vitro culture of reconstructed embryos for a longer time (40 h vs. 20 h) resulted in higher (p<0.05) pregnancy rate (44 ± 9 vs. 31 ± 3%) and delivery rate (44 ± 9 vs. 25 ± 9%). Furthermore, double oviductal transfer dramatically increased pregnancy rate (83 ± 6 vs. 27+8%, p<0.05), delivery rate (75 ± 2 vs. 27+8%, p<0.05) and average litter size (6.5 ± 2.8 vs. 2.6 ± 1.2) compared to single oviductal transfer. Our study demonstrated that an improvement in pig cloning efficiency is achieved by adjusting the number and in vitro culture time of reconstructed embryos as well as the embryo transfer pattern.
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Affiliation(s)
- Chol Ho Rim
- College of Animal Sciences, School of Medicine, Zhejiang University, Hangzhou 310058, People's Republic of China; Department of Animal Cloning, Cloning Research Center, Biotechnology Branch, Academy of Sciences, Democratic People's Republic of Korea
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Rao L, Tang W, Wei Y, Bao L, Chen J, Chen H, He L, Lu P, Ren J, Wu L, Luan Z, Cui C, Xiao L. Highly efficient derivation of skeletal myotubes from human embryonic stem cells. Stem Cell Rev Rep 2013; 8:1109-19. [PMID: 23104134 DOI: 10.1007/s12015-012-9413-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Human embryonic stem cells (hESCs) are a promising model for the research of embryonic development and regenerative medicine. Since the first hESC line was established, many researchers have shown that pluripotent hESCs can be directed into many types of functional adult cells in culture. However, most of the reported methods have induced differentiation through the alteration of growth factors in the culture medium. These methods are time consuming; moreover, it is difficult to obtain a pure population of the desired cells because of the low efficiency of induction. In this study, we used a lentiviral-based inducible gene-expression system in hESCs to control the ectopic expression of MyoD, which is an essential transcription factor in skeletal muscle development. The induction of MyoD can efficiently direct the pluripotent hESCs into mesoderm in 24 h. The cells then become proliferated myoblasts and finally form multinucleated myotubes in vitro. The whole procedure took about 10 days, with an induction efficiency of over 90%. To our knowledge, this is the first time that hESCs have been induced into terminally differentiated cells with only one factor. In the future, these results could be a potential resource for cell therapy for diseases of muscle dysfunction.
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Affiliation(s)
- Lingjun Rao
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
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Li H, Mo J, Jia G, Liu C, Luan Z, Guan Y. Activation of Wnt signaling inhibits the pro-apoptotic role of Notch in gastric cancer cells. Mol Med Rep 2013; 7:1751-6. [PMID: 23563575 DOI: 10.3892/mmr.2013.1412] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 12/04/2012] [Indexed: 01/02/2023] Open
Abstract
Notch and Wnt signaling play critical roles in the regulation of development and diseases. Several studies have previously reported that Notch may be a therapeutic target in the treatment of various types of human cancer. In this study, we report that activation of Notch1 inhibits the proliferation of BGC-823 gastric cancer cells. However, the activation of the Wnt/β‑catenin signaling pathway promotes the growth of BGC-823 cells. Furthermore, the combinational activation of the two signaling pathways promotes the proliferation of BGC-823 cells. These data suggest that the activation of Wnt signaling overcomes the pro-apoptotic role of Notch in BGC-823 gastric cancer cells.
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Affiliation(s)
- Hong Li
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, Liaoning 110001, P.R. China
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Luan Z, Liu Y, Stuhlmiller TJ, Marquez J, García-Castro MI. SUMOylation of Pax7 is essential for neural crest and muscle development. Cell Mol Life Sci 2012; 70:1793-806. [PMID: 23247248 DOI: 10.1007/s00018-012-1220-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 10/27/2012] [Accepted: 11/22/2012] [Indexed: 12/24/2022]
Abstract
Regulatory transcription factors of the Pax family play fundamental roles in the function of multipotent cells during vertebrate development, post-natal regeneration, and cancer. Pax7 and its homologue Pax3 are important players in neural crest and muscle development. Both genes are coexpressed in various tissues and are thought to provide similar, but not identical, functions. The mechanisms that allow specific regulation of Pax7 remain largely unknown. Here, we report for the first time that Pax7 is regulated by SUMOylation. We identify the interaction of Pax7 with Ubc9, the SUMO conjugating enzyme, and reveal that SUMOylation machinery is enriched in neural crest precursors and plays a critical role in NC development. We demonstrate that Pax7 becomes SUMOylated and identify an essential role for lysine 85 (K85) in Pax7-SUMOylation. Despite high conservation surrounding K85 amongst Pax genes, we were unable to identify SUMOylation of other Pax proteins tested, including Pax3. Using a non-SUMOylatable Pax7 variant (K85 X R), we demonstrate that SUMOylation is essential for the function of Pax7 in neural crest development, C2C12 myogenic differentiation, and transcriptional transactivation. Our study provides new mechanistic insight into the molecular regulation of Pax7's function by SUMOylation in neural crest and muscle development.
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Affiliation(s)
- Zhidong Luan
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520-8103, USA
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Fan N, Chen J, Shang Z, Dou H, Ji G, Zou Q, Wu L, He L, Wang F, Liu K, Liu N, Han J, Zhou Q, Pan D, Yang D, Zhao B, Ouyang Z, Liu Z, Zhao Y, Lin L, Zhong C, Wang Q, Wang S, Xu Y, Luan J, Liang Y, Yang Z, Li J, Lu C, Vajta G, Li Z, Ouyang H, Wang H, Wang Y, Yang Y, Liu Z, Wei H, Luan Z, Esteban MA, Deng H, Yang H, Pei D, Li N, Pei G, Liu L, Du Y, Xiao L, Lai L. Piglets cloned from induced pluripotent stem cells. Cell Res 2012; 23:162-6. [PMID: 23247628 DOI: 10.1038/cr.2012.176] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Liu WP, Liu CQ, Xiao M, Qu SQ, Hu XH, Wang ZY, He S, Luan Z. Treatment of newborns with severe injured brain with transplantation of human neural precursor cells. Klin Padiatr 2012. [DOI: 10.1055/s-0032-1330780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chen J, Qin M, Fang J, Luan Z, Chai Y, Sun X, Zhu Y, Tang Y. Outcome of 64 Aplastic Anemia Children With Allogenic Hematopoietic Stem Cell Transplant in China: A Report From Chinese Pediatric Group of HSCT. Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhou D, Gong H, Luan Z, Hu J, Wu F. Spatial pattern of water controlled wetland communities on the Sanjiang Floodplain, Northeast China. COMMUNITY ECOL 2006. [DOI: 10.1556/comec.7.2006.2.9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Luan Z, Fournier J, Wooten J, Miser D, Chang M. Functionalized mesoporous SBA-15 silica molecular sieves with mercaptopropyl groups: Preparation, characterization and application as adsorbents. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0167-2991(05)80302-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Huang R, Xing Z, Luan Z, Wu T, Wu X, Hu G. A specific splicing variant of SVH, a novel human armadillo repeat protein, is up-regulated in hepatocellular carcinomas. Cancer Res 2003; 63:3775-82. [PMID: 12839973] [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: 03/03/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors with poor prognosis. By representational difference analysis (RDA), a novel human gene designated SVH, up-regulated in the clinical HCC sample, was identified. The deduced SVH protein consisted of 343 amino acids with a transmembrane domain and an armadillo repeat. Northern blot revealed that SVH was expressed in most human adult tissues. Four variants of SVH, SVH-A, -B, -C, and -D, resulting from alternative splicing in the coding region of the SVH transcript, were observed and were all localized in endoplasmic reticulum (ER). Up-regulation of SVH-B, but not the other variants, was evident in about 60% (28 of 46) of HCC samples, detected by quantitative real-time PCR. Human liver cell line QSG-7701, transfected with SVH-B, acquired an accelerated growth rate and tumorigenicity in nude mice, whereas inhibition of SVH-B in hepatoma cell line BEL-7404, using antisense oligodeoxynucleotides, induced apoptosis. It is suggested that the splicing variants of SVH have distinct biological functions, and SVH-B may play an important role in hepatocarcinogenesis.
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Affiliation(s)
- Ruimin Huang
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, the Chinese Academy of Sciences, 200031 Shanghai, China
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Abstract
This paper describes a new adsorption material carbon nanotube supported alumina, used for fluoride removal from water. The effects of calcination temperature, alumina loading and pH on fluoride removal capacity were investigated. The optimum calcination temperature for preparing the adsorbents is 450 degrees C and the largest adsorption capacity takes place at alumina loading of 30 wt%. The broad pH range of 6.0-9.0 with high adsorption capability suggests that carbon nanotube supported alumina have great potential applications in practice. The adsorption data at different pH were well fitted to the Freundlich isotherm. The kinetic studies show that the adsorption reaction of fluoride removal by carbon nanotube supported alumina can be described by a second orderrate equation.
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Affiliation(s)
- Y H Li
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
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Abstract
In this study, a member of the MyoD gene family, AmphiMDF, was isolated from the embryos of amphioxus by degenerate PCR, followed by rapid amplification of cDNA ends (RACE). Southern blot analysis confirmed that only a single myogenic bHLH gene was present in the genome of amphioxus Branchiostoma belcheri tsingtauense. Sequence and phylogenetic analyses indicated that AmphiMDF falls at the base of its vertebrate homologs. The amino acid sequence of AmphiMDF was almost equally similar to those of the four clusters of the vertebrate MyoD family. This suggests that AmphiMDF is not only the sister but also the archetype of the vertebrate myogenic bHLH genes. The scenarios to explain the origin of the vertebrate MyoD gene family from the ancestral myogenic bHLH gene like AmphiMDF are also discussed.
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Affiliation(s)
- Jinduo Yuan
- Department of Marine Biology, Ocean University of Qingdao, 266003, Qingdao, PR China
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Abstract
A novel human guanylate-binding protein (GBP) hGBP3 was identified and characterized. Similar as the two human guanylate-binding proteins hGBP1 and hGBP2, hGBP3 has the first two motifs of the three classical guanylate-binding motifs, GXXXXGKS (T) and DXXG, but lacks the N (T) KXD motif. Escherichia coli-expressed hGBP3 protein specifically binds to guanosine triphosphate (GTP). Using a yeast two-hybrid system, it was revealed that the N-terminal region of hGBP3 binds to the C-terminal regulatory domain of NIK/HGK, a member of the group I GCK (germinal center kinase) family. This interaction was confirmed by in vitro glutathione-S-transferase (GST) pull-down and co-immunoprecipitation assays.
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Affiliation(s)
- Zhidong Luan
- Max-Planck Guest Laboratory, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, 320, Yye-Yang Road, Shanghai 200031, PR China
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Li Z, Luan Z, Wang S, Gong X, Jia Z. [Treatment of 2-naphtholwastewater using air oxidation and ion exchange]. Huan Jing Ke Xue 2001; 22:53-6. [PMID: 11855181] [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: 02/23/2023]
Abstract
The properties of 2-naphtholwastewater were studied in details in this paper, the wastewater was characterized by the strong acidity, high buffer capability and concentrated salt. Air oxidation and anion exchange were employed for the treatment of the wastewater. Under formal pH, room temperature and 1 BV/h rate, the result showed that the removal of COD reached to 97% and the recovery of sodium naphthalensulfonate to 98%. Besides, wastewater treated can be reused for washing the sodium naphthalensulfonate.
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Affiliation(s)
- Z Li
- State Kay Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Science, Chinese Academy of Science, Beijing 100085, China
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Abstract
CASK, a member of the membrane-associated guanylate kinase (MAGUK) superfamily, binds to the carboxyl-terminus of beta-neurexins on the intracellular side of the presynaptic membrane. The guanylate kinase-like (GUK) domains of MAGUKs lack kinase activities, but might be important for mediating specific protein-protein interaction. By a yeast two-hybrid approach, we identified an interaction between the GUK domain of CASK and the C2B domain of rabphilin3a, a presynaptic protein involved in synaptic vesicle exocytosis. The interaction was confirmed by in vitro GST pull-down and co-immunoprecipitation assays. It was proposed that presynaptic vesicles might be guided to the vicinity of points of exocytosis defined by beta-neurexins via the interaction between rabphilin3a-CASK-beta-neurexins.
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Affiliation(s)
- Y Zhang
- Max-Planck Guest Laboratory, Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, 320, Yue-Yang Road, 200031, Shanghai, PR China
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Luan Z, Zhao Y, Liu S, Gao L, Li L, Zhang Z. [Relationship between obese gene expressive product and simple obesity in children]. Zhonghua Yu Fang Yi Xue Za Zhi 1999; 33:91-3. [PMID: 11864461] [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: 02/23/2023]
Abstract
OBJECTIVE To investigate the relationship between obese gene expressive product-obese protein (OP) and the pathogenesis and prognosis of simple obesity in 30 children with normal body weight (control group). METHODS Before immunoassay, OP was extracted from the whole blood samples with Sep-pak C(18) Cartridge. RESULTS The plasma contents of OP in the obese group were (118.53 +/- 25.02) ng/L and (197.14 +/- 26.83) ng/L (P < 0.001), respectively. In the obese group, plasma OP was not detected in three cases and was (19.90 +/- 3.94) ng/L in other three cases. These obese children with severe OP deficit not only had more increased body mass index, and levels of total cholesterol, triglyceride and low-density lipoprotein-cholesterol, but also had lower therapeutic effect (16.67%) than those with mild OP depletion (79.16%). CONCLUSION The children with simple obesity have OP deficit. Simple obesity may be related with the reduced plasma content of OP. The obese children with severe OP deficit have poorer curative effect and unfavorable prognosis.
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Affiliation(s)
- Z Luan
- Department of Pediatrics The Navy General Hospital, Beijing 100037
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