1
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Liu J, Yan Q, Li S, Jiao J, Hao Y, Zhang G, Zhang Q, Luo F, Zhang Y, Lv Q, Zhang W, Zhang A, Song H, Xin Y, Ma Y, Owusu L, Ma X, Yin P, Shang D. Integrative metagenomic and metabolomic analyses reveal the potential of gut microbiota to exacerbate acute pancreatitis. NPJ Biofilms Microbiomes 2024; 10:29. [PMID: 38514648 PMCID: PMC10957925 DOI: 10.1038/s41522-024-00499-4] [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: 06/30/2023] [Accepted: 03/13/2024] [Indexed: 03/23/2024] Open
Abstract
Early dysbiosis in the gut microbiota may contribute to the severity of acute pancreatitis (AP), however, a comprehensive understanding of the gut microbiome, potential pathobionts, and host metabolome in individuals with AP remains elusive. Hence, we employed fecal whole-metagenome shotgun sequencing in 82 AP patients and 115 matched healthy controls, complemented by untargeted serum metabolome and lipidome profiling in a subset of participants. Analyses of the gut microbiome in AP patients revealed reduced diversity, disrupted microbial functions, and altered abundance of 77 species, influenced by both etiology and severity. AP-enriched species, mostly potential pathobionts, correlated positively with host liver function and serum lipid indicators. Conversely, many AP-depleted species were short-chain fatty acid producers. Gut microflora changes were accompanied by shifts in the serum metabolome and lipidome. Specifically, certain gut species, like enriched Bilophila wadsworthia and depleted Bifidobacterium spp., appeared to contribute to elevated triglyceride levels in biliary or hyperlipidemic AP patients. Through culturing and whole-genome sequencing of bacterial isolates, we identified virulence factors and clinically relevant antibiotic resistance in patient-derived strains, suggesting a predisposition to opportunistic infections. Finally, our study demonstrated that gavage of specific pathobionts could exacerbate pancreatitis in a caerulein-treated mouse model. In conclusion, our comprehensive analysis sheds light on the gut microbiome and serum metabolome in AP, elucidating the role of pathobionts in disease progression. These insights offer valuable perspectives for etiologic diagnosis, prevention, and intervention in AP and related conditions.
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Affiliation(s)
- Jianjun Liu
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Qiulong Yan
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | | | - Juying Jiao
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Yiming Hao
- Department of Gastrointestinal Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Guixin Zhang
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qingkai Zhang
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fei Luo
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Yue Zhang
- Puensum Genetech Institute, Wuhan, China
| | - Qingbo Lv
- Puensum Genetech Institute, Wuhan, China
| | - Wenzhe Zhang
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | | | - Huiyi Song
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yi Xin
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Yufang Ma
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Lawrence Owusu
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian, China.
| | - Peiyuan Yin
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
- College of Integrative Medicine, Dalian Medical University, Dalian, China.
| | - Dong Shang
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
- College of Integrative Medicine, Dalian Medical University, Dalian, China.
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
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2
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Kampo S, Ahmmed B, Zhou T, Owusu L, Anabah TW, Doudou NR, Kuugbee ED, Cui Y, Lu Z, Yan Q, Wen QP. Corrigendum: Scorpion Venom Analgesic Peptide, BmK AGAP Inhibits Stemness and Epithelial-Mesenchymal Transition by Down-Regulating PTX3 in Breast Cancer. Front Oncol 2021; 11:639813. [PMID: 34268108 PMCID: PMC8276674 DOI: 10.3389/fonc.2021.639813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 05/13/2021] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sylvanus Kampo
- Department of Anesthesiology, Dalian Medical University, Dalian, China.,Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China.,Department of Anesthesia and Intensive Care, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | - Bulbul Ahmmed
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Tingting Zhou
- Department of Anesthesiology, Dalian Medical University, Dalian, China.,Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, China
| | - Thomas Winsum Anabah
- Department of Anesthesia and Intensive Care, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | | | - Eugene Dogkotenge Kuugbee
- Department of Clinical Microbiology, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | - Yong Cui
- School of Life Science and Bio-pharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhili Lu
- Department of Ophthalmology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qiu Yan
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Qing-Ping Wen
- Department of Anesthesiology, Dalian Medical University, Dalian, China.,Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
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3
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Wang X, Xu X, Jiang G, Zhang C, Liu L, Kang J, Wang J, Owusu L, Zhou L, Zhang L, Li W. Dihydrotanshinone I inhibits ovarian cancer cell proliferation and migration by transcriptional repression of PIK3CA gene. J Cell Mol Med 2020; 24:11177-11187. [PMID: 32860347 PMCID: PMC7576223 DOI: 10.1111/jcmm.15660] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/10/2020] [Accepted: 06/26/2020] [Indexed: 12/11/2022] Open
Abstract
Dihydrotanshinone I (DHTS), extracted from Salvia miltiorrhiza, was found to be the most effective compound of tanshen extracts against cancer cells in our previous studies. However, the therapeutic benefits and underlying mechanisms of DHTS on ovarian cancer remain uncertain. In this study, we demonstrated the cytocidal effects of DHTS on chemosensitive ovarian cancer cells with or without platinum-based chemotherapy. DHTS was able to inhibit proliferation and migration of ovarian cancer cells in vitro and in vivo through modulation of the PI3K/AKT signalling pathways. Combinatorial treatment of DHTS and cisplatin exhibited enhanced DNA damage in ovarian cancer cells. Overall, these findings suggest that DHTS induces ovarian cancer cells death via induction of DNA damage and inhibits ovarian cancer cell proliferation and migration.
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Affiliation(s)
- Xiaoqing Wang
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China.,Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Xiao Xu
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Guoqiang Jiang
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Cuili Zhang
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Likun Liu
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Jian Kang
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Jing Wang
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Lawrence Owusu
- Department of Biotechnology, Basic Medical School, Dalian Medical University, Dalian, China
| | - Liye Zhou
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Weiling Li
- Academy of Integrative Medicine, Dalian Medical University, Dalian, China
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4
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Kampo S, Ahmmed B, Zhou T, Owusu L, Anabah TW, Doudou NR, Kuugbee ED, Cui Y, Lu Z, Yan Q, Wen QP. Scorpion Venom Analgesic Peptide, BmK AGAP Inhibits Stemness, and Epithelial-Mesenchymal Transition by Down-Regulating PTX3 in Breast Cancer. Front Oncol 2019; 9:21. [PMID: 30740360 PMCID: PMC6355678 DOI: 10.3389/fonc.2019.00021] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/07/2019] [Indexed: 12/14/2022] Open
Abstract
A scorpion peptide reported to exhibit both analgesic and antitumor activity in animal models may present as an alternative therapeutic agent for breast cancer. We aimed to investigate the effect of Buthus martensii Karsch antitumor-analgesic peptide (BmK AGAP) on breast cancer cell stemness and epithelial-mesenchymal transition (EMT). We treated MCF-7 and MDA-MB-231 cells with different concentrations of rBmK AGAP and observed that rBmK AGAP inhibited cancer cell stemness, epithelial-mesenchymal transition (EMT), migration, and invasion. Analysis by qPCR, ELISA, western blot, immunofluorescence staining, sphere formation, colony assay, transwell migration, and invasion assays demonstrated rBmK AGAP treatment decreased the expressions of Oct4, Sox2, N-cadherin, Snail, and increased the expression of E-cadherin. rBmK AGAP inhibited breast cancer cell stemness, EMT, migration, and invasion by down-regulating PTX3 through NF-κB and Wnt/β-catenin signaling Pathway in vitro and in vivo. Xenograft tumor model confirmed inhibition of tumor growth, stem-like features, and EMT by rBmK AGAP. Thus, rBmK AGAP is a potential therapeutic agent against breast cancer and related pain.
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Affiliation(s)
- Sylvanus Kampo
- Department of Anesthesiology, Dalian Medical University, Dalian, China
- Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
- Department of Anesthesia and Intensive Care, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | - Bulbul Ahmmed
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Tingting Zhou
- Department of Anesthesiology, Dalian Medical University, Dalian, China
- Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, China
| | - Thomas Winsum Anabah
- Department of Anesthesia and Intensive Care, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | | | - Eugene Dogkotenge Kuugbee
- Department of Clinical Microbiology, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana
| | - Yong Cui
- School of Life Science and Bio-pharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhili Lu
- Department of Ophthalmology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qiu Yan
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Qing-Ping Wen
- Department of Anesthesiology, Dalian Medical University, Dalian, China
- Department of Anesthesiology, First Affiliated Hospital of Dalian Medical University, Dalian, China
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5
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Kanwal S, Joseph TP, Owusu L, Xiaomeng R, Meiqi L, Yi X. A Polysaccharide Isolated from Dictyophora indusiata Promotes Recovery from Antibiotic-Driven Intestinal Dysbiosis and Improves Gut Epithelial Barrier Function in a Mouse Model. Nutrients 2018; 10:nu10081003. [PMID: 30065236 PMCID: PMC6115818 DOI: 10.3390/nu10081003] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/25/2018] [Accepted: 07/27/2018] [Indexed: 02/06/2023] Open
Abstract
Despite the tremendous biological activity of polysaccharides from the mushroom Dictyophora indusiata, its role in the restoration of gut microbiota has not yet been explored. The present study aimed to investigate whether D. indusiata polysaccharide (DIP) could modulate the recovery of gut microbiota composition and intestinal barrier function after broad-spectrum antibiotic-driven dysbiosis. Alteration and restoration in the microbial communities were elucidated by the Illumina MiSeq platform. Colon histology, expression of tight-junction associated proteins, and serum/tissue endotoxin and cytokine levels were evaluated. Two-week daily oral administration of clindamycin and metronidazole resulted in reduced bacterial diversity and richness, and perturbed the microbial flora at various taxonomic levels (altered Firmicutes/Bacteroidetes ratio and increased relative abundance of harmful flora (Proteobacteria, Enterococcus, and Bacteroides)), whereas DIP administration reversed the dysbiosis and increased beneficial flora, including Lactobacillaceae (lactic acid-producing bacteria), and Ruminococaceae (butyrate-producing bacteria). In addition, it resulted in the reduction of endotoxemia (through lipopolysaccharides (LPSs)) and pro-inflammatory cytokine (tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), and interleukin 1β (IL-1β)) levels, with the increased expression of tight-junction associated proteins (claudin-1, occludin, and zonula occludens-1). These findings not only suggested a comprehensive understanding of the protective effects of a DIP in the restoration of gut microbiota but also highlighted its role in the enhancement of gut barrier integrity, reduction of inflammation and lowering of endotoxin levels in mice.
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Affiliation(s)
- Sadia Kanwal
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, Liaoning, China.
| | - Thomson Patrick Joseph
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, Liaoning, China.
| | - Lawrence Owusu
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), PMB, UPO, Kumasi 00000, Ghana.
| | - Ren Xiaomeng
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, Liaoning, China.
| | - Li Meiqi
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, Liaoning, China.
| | - Xin Yi
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, Liaoning, China.
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6
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Liu J, Jiang G, Mao P, Zhang J, Zhang L, Liu L, Wang J, Owusu L, Ren B, Tang Y, Li W. Down-regulation of GADD45A enhances chemosensitivity in melanoma. Sci Rep 2018; 8:4111. [PMID: 29515153 PMCID: PMC5841426 DOI: 10.1038/s41598-018-22484-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 05/09/2017] [Accepted: 02/15/2018] [Indexed: 11/08/2022] Open
Abstract
Melanoma is a malignant skin cancer with considerable drug resistance. Increased expression of DNA repair genes have been reported in melanoma, and this contributes to chemotherapy resistance. GADD45A is involved in DNA repair, cell cycle arrest and apoptosis in response to physiologic or environmental stresses. In this study, we investigated the role of GADD45A in chemotherapy response. Firstly, the mRNA expression of profiled DNA repair genes in cisplatin-treated melanoma cells was detected by RT2 profilerTM PCR array. We found the expression of GADD45A upregulated in a dose- and time- dependent manner. In addition, suppression of GADD45A sensitized melanoma cells to cisplatin and enhanced cisplatin-induced DNA damage. Flow cytometry revealed that downregulating GADD45A released cells from cisplatin-induced G2/M arrest and increased apoptosis. By using a MEK inhibitor, GADD45A was shown to be regulated by MAPK-ERK pathway following cisplatin treatment. Thus, the induction of GADD45A might play important roles in chemotherapy response in human melanoma cancer and could serve as a novel molecular target for melanoma therapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Ping Mao
- Department of General Surgery, The people's Hospital of Liaoning Province, Shenyang, 110016, Liaoning, China
| | - Jing Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Jia Wang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Lawrence Owusu
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Baoyin Ren
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Yawei Tang
- Department of Immunology, Dalian Medical University, Dalian, 116044, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, 116044, Liaoning, China.
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7
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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017. [PMID: 29156754 DOI: 10.18632/oncotarget.20482] [] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China.,Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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8
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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017. [PMID: 29156754 DOI: 10.18632/oncotarget.20482]+[] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China.,Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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9
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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017; 8:85759-85771. [PMID: 29156754 PMCID: PMC5689644 DOI: 10.18632/oncotarget.20482] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 07/25/2017] [Indexed: 01/13/2023] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People’s Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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10
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Bakheet AMH, Mahmoud SA, Huang Y, Zhang J, Wang J, Wei Y, Gamallat Y, Awadasseid A, Owusu L, Khidir Y, Wang L, Zhou S, Seewooruttun PK, Xin B, Xuan W, Su Z, Tang J. Ezrin as a possible diagnostic and/or prognostic biomarker in mice lymphatic metastatic hepatocellular carcinoma in vivo. Biofactors 2017; 43:662-672. [PMID: 28608644 DOI: 10.1002/biof.1368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) ranks in the top of cancers leading to death. Early diagnosis is the big challenge in the case of HCC. Our in vitro study showed that Ezrin expression in lymphatic metastasis hepatocellular carcinoma (LNM-HCC) was associated with the metastatic rate. Here we aim to evaluate Ezrin expression as diagnostic and/or prognostic biomarker of LNM-HCC in mice. Chinese inbred 615 mice, Hca-F and Hca-P cell lines were used in the study. Histological changes were determined by Hematoxylin and Eosin, while Ezrin expression was assessed by qRT-PCR, western blot, immunohistochemistry, and enzyme-linked immunosorbent assay. Ezrin expression in this study gives credit to our in vitro study which Ezrin expression was positively correlated with LNM-HCC and negatively with Annexin7 (A7) expression. The highest histological changes were observed in high metastatic primary/secondary tumors combined with high Ezrin expression. Ezrin and A7 are higher in total primary tumors than in total secondary tumors (P = 0.0001, P = 0.021), respectively. Ezrin expression was enhanced in Hca-P A7 down-regulated primary/secondary tumors (P = 0.004), whereas, Ezrin expression was suppressed in Hca-F A7 upregulated primary/secondary tumors. Serum ELISA indicated differential expression of Ezrin among the study groups (P ≤ 0.0001). Ezrin expression was higher in NC-Hca-F than NC-Hca-P (P ≤ 0.0001), suppressed in Hca-F A7 upregulation (P ≤ 0.0001) and in enhanced in Hca-P A7 down-regulation (P = 0.0001). In conclusion, Ezrin level may serve as a differential diagnostic and/or prognostic biomarker for high and low LNM-HCC and may be beneficial in the diagnosis of HCC disease. © 2017 BioFactors, 43(5):662-672, 2017.
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Affiliation(s)
- Ahmed Musa Hago Bakheet
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Salma Abdi Mahmoud
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jun Zhang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jingwen Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuanyi Wei
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yaser Gamallat
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Annoor Awadasseid
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Lawrence Owusu
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yousra Khidir
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Li Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Shuting Zhou
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Pawan Kumar Seewooruttun
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Boyi Xin
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Wei Xuan
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Zhen Su
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jianwu Tang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
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Jiang G, Liu J, Ren B, Zhang L, Owusu L, Liu L, Zhang J, Tang Y, Li W. Anti-tumor and chemosensitization effects of Cryptotanshinone extracted from Salvia miltiorrhiza Bge. on ovarian cancer cells in vitro. J Ethnopharmacol 2017; 205:33-40. [PMID: 28456578 DOI: 10.1016/j.jep.2017.04.026] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [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: 03/21/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cryptotanshinone, a natural compound isolated from the roots of Salvia miltiorrhiza Bge. (Danshen), is a commonly used traditional Chinese medicine to treat high blood pressure in some countries. It has been shown that Cryptotanshinone induces cancer cells apoptosis and impairs cell migration and invasion. However, the antiproliferation and chemosensitization effects of Cryptotanshinone on ovarian cancer and the underlying mechanism are not fully elucidated. AIM OF STUDY In this study, we evaluated the inhibitory effect of Cryptotanshinone on ovarian cancer cells and explored the underlying molecular mechanism. Additionally, the chemosensitization potential of Cryptotanshinone was evaluated in combination with cisplatin. MATERIALS AND METHODS MTT assay was used for cell viability assessment of ovarian cancer A2780 cells treated with Cryptotanshinone and/ or cisplatin. Flow cytometry was used for apoptosis analysis. Wound healing and transwell assays were used for migratory and invasive potential assessment of Cryptotanshinone-treated ovarian cancer cells. Western blot was used to investigate proteins involved in the mechanisms for metastasis and apoptosis. γH2AX immunocytochemistry was used to detect DNA damage in A2780 cells exposed to Cryptotanshinone and/or cisplatin. RESULTS Cryptotanshinone significantly induced ovarian cancer A2780 cells apoptosis by activating caspase cascade. Additionally, wound healing and transwell assays revealed that Cryptotanshinone could suppress migration and invasion of ovarian cancer cells and dramatically inhibited MMP-2 and MMP-9 expression. Furthermore, Cryptotanshinone could sensitize A2780 cells to cisplatin treatment in a dose-dependent manner. CONCLUSION Our data confirmed the anti-tumor effect of Cryptotanshinone on ovarian cancer cells and provided new findings that Cryptotanshinone could sensitize ovarian cancer cells to chemotherapy.
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Affiliation(s)
- Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Baoyin Ren
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Lin Zhang
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Lawrence Owusu
- Department of Integrative Medicine, Dalian Medical University, Dalian 116044, Liaoning, China; Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Jing Zhang
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China
| | - Yawei Tang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Lvshun South Road, Dalian 116044, Liaoning, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian 116044, Liaoning, China.
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Qiu JJ, Liu Z, Zhao P, Wang XJ, Li YC, Sui H, Owusu L, Guo HS, Cai ZX. Gut microbial diversity analysis using Illumina sequencing for functional dyspepsia with liver depression-spleen deficiency syndrome and the interventional Xiaoyaosan in a rat model. World J Gastroenterol 2017; 23:810-816. [PMID: 28223725 PMCID: PMC5296197 DOI: 10.3748/wjg.v23.i5.810] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/21/2016] [Accepted: 12/08/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate gut microbial diversity and the interventional effect of Xiaoyaosan (XYS) in a rat model of functional dyspepsia (FD) with liver depression-spleen deficiency syndrome. METHODS The FD with liver depression-spleen deficiency syndrome rat model was established through classic chronic mild unpredictable stimulation every day. XYS group rats received XYS 1 h before the stimulation. The models were assessed by parameters including state of the rat, weight, sucrose test result and open-field test result. After 3 wk, the stools of rats were collected and genomic DNA was extracted. PCR products of the V4 region of 16S rDNA were sequenced using a barcoded Illumina paired-end sequencing technique. The primary composition of the microbiome in the stool samples was determined and analyzed by cluster analysis. RESULTS Rat models were successfully established, per data from rat state, weight and open-field test. The microbiomes contained 20 phyla from all samples. Firmicutes, Bacteroidetes, Proteobacteria, Cyanobacteria and Tenericutes were the most abundant taxonomic groups. The relative abundance of Firmicutes, Proteobacteria and Cyanobacteria in the model group was higher than that in the normal group. On the contrary, the relative abundance of Bacteroidetes in the model group was lower than that in the normal group. Upon XYS treatment, the relative abundance of all dysregulated phyla was restored to levels similar to those observed in the normal group. Abundance clustering heat map of phyla corroborated the taxonomic distribution. CONCLUSION The microbiome relative abundance of FD rats with liver depression-spleen deficiency syndrome was significantly different from the normal cohort. XYS intervention may effectively adjust the gut dysbacteriosis in FD.
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13
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Qiu J, Zang S, Ma Y, Owusu L, Zhou L, Jiang T, Xin Y. Homology modeling and identification of amino acids involved in the catalytic process of Mycobacterium tuberculosis serine acetyltransferase. Mol Med Rep 2017; 15:1343-1347. [DOI: 10.3892/mmr.2017.6156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 11/29/2016] [Indexed: 11/06/2022] Open
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14
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Jiang G, Liu J, Ren B, Tang Y, Owusu L, Li M, Zhang J, Liu L, Li W. Anti-tumor effects of osthole on ovarian cancer cells in vitro. J Ethnopharmacol 2016; 193:368-376. [PMID: 27566206 DOI: 10.1016/j.jep.2016.08.045] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/15/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cnidium monnieri (L.) Cusson is a commonly used traditional Chinese medicine to treat gynecological disease in some countries. Osthole, an active O-methylated coumadin isolated from Cnidium monnieri (L.) Cusson, has been shown to induce various beneficial biochemical effects such as anti-seizure and anti-inflammatory effects. However, the anti-tumor mechanism of osthole is not well known. AIM OF STUDY Here, we show that osthole inhibited the proliferation and migration of two widely used ovarian cancer cell lines, A2780 and OV2008 cells, in a dose-dependent manner. The study investigated the molecular mechanisms underlying ovarian cancer cells proliferation, apoptosis, cell cycle arrest and migration triggered by osthole. MATERIALS AND METHODS Ovarian cancer cell lines A2780, OV2008 and normal ovarian cell line IOSE80 were used as experimental model. MTT assay was employed to evaluate cell viability. Flow cytometry assays were performed to confirm apoptosis and cell cycle. We employed wound healing and transwell assays to delineate invasive and migratory potential triggered by osthole. RESULTS MTT assays indicated that cell viability significantly decreased in ovarian cancer cells treated with osthole without effect on normal ovarian cells. Flow cytometric analysis revealed that osthole suppressed cells proliferation by promoting G2/M arrest and inducing apoptosis. The underlying mechanisms involved were regulation of the relative apoptotic protein Bcl-2, Bax and Caspase 3/9. In addition, wound healing and transwell assays revealed that the migratory potential and activity of matrix metalloproteinase MMP-2 and MMP-9 were markedly inhibited when cells were exposed to osthole. CONCLUSION Our findings suggested that osthole has the potential to be used in novel anti-cancer therapeutic formulations for ovarian cancer treatment.
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Affiliation(s)
- Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China
| | - Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China
| | - Baoyin Ren
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China
| | - Yawei Tang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Lvshun south Road, Dalian 116044 Liaoning, China
| | - Lawrence Owusu
- Department of Integrative Medicine, Dalian Medical University, Dalian 116044 Liaoning, China; Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Man Li
- Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Jing Zhang
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian 116044 Liaoning, China.
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Owusu L, Yeboah FA, Osei-Akoto A, Rettig T, Arthur FKN. Clinical and epidemiological characterisation of Burkitt’s lymphoma: an eight-year case study at Komfo Anokye Teaching Hospital, Ghana. Br J Biomed Sci 2016. [DOI: 10.1080/09674845.2010.11730303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- L. Owusu
- Departments of Biochemistry and Biotechnology
| | - F. A Yeboah
- Molecular Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology
- Departments of Clinical Biochemistry
| | - A. Osei-Akoto
- Child Health, Komfo Anokye Teaching Hospital
- Department of Child Health, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - T. Rettig
- Child Health, Komfo Anokye Teaching Hospital
- Department of Child Health, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Liu J, Bai J, Jiang G, Li X, Wang J, Wu D, Owusu L, Zhang E, Li W. Anti-Tumor Effect of Pinus massoniana Bark Proanthocyanidins on Ovarian Cancer through Induction of Cell Apoptosis and Inhibition of Cell Migration. PLoS One 2015; 10:e0142157. [PMID: 26539720 PMCID: PMC4634942 DOI: 10.1371/journal.pone.0142157] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 05/01/2015] [Accepted: 10/19/2015] [Indexed: 11/24/2022] Open
Abstract
Pinus massoniana bark proanthocyanidins (PMBPs), an active component isolated from Pinus massoniana bark, has been reported to possess a wide range of biochemical properties. Here, we investigated the anti-tumor effect of PMBPs on ovarian cancer. The results indicated that PMBPs significantly reduced the growth of ovarian cancer cells and induced dose-dependent apoptosis. The underlying mechanisms involved were elucidated to include the loss of mitochondrial membrane potential, down-regulation of the anti-apoptotic protein Bcl-2 and the activation of Caspase 3/9, suggesting that PMBPs triggered apoptosis through activation of mitochondria-associated apoptotic pathway. In addition, wound healing and transwell chamber assays revealed that PMBPs could suppress migration and invasion of ovarian cancer cells. PMBPs dramatically inhibited MMP-9 activity and expression, blocked the activity of NFκB and the activation of ERK1/2 and p38 MAPK. Our findings suggest that PMBPs has the potential to be developed as an anti-tumor drug for ovarian cancer treatment and/ or disease management.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Jing Bai
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Xinli Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Dachang Wu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Lawrence Owusu
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Pharmaceutical Sciences, University of South Florida, Tampa, United States of America
| | - Ershao Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, China
- * E-mail:
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Zhang JW, Zhang GX, Chen HL, Liu GL, Owusu L, Wang YX, Wang GY, Xu CM. Therapeutic effect of Qingyi decoction in severe acute pancreatitis-induced intestinal barrier injury. World J Gastroenterol 2015; 21:3537-3546. [PMID: 25834318 PMCID: PMC4375575 DOI: 10.3748/wjg.v21.i12.3537] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/06/2014] [Accepted: 12/22/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of Qingyi decoction on the expression of secreted phospholipase A2 (sPLA2) in intestinal barrier injury.
METHODS: Fifty healthy Sprague-Dawley rats were randomly divided into control, severe acute pancreatitis (SAP), Qingyi decoction-treated (QYT), dexamethasone-treated (DEX), and verapamil-treated (VER) groups. The SAP model was induced by retrograde infusion of 1.5% sodium deoxycholate into the biliopancreatic duct of the rats. All rats were sacrificed 24 h post-SAP induction. Arterial blood, intestine, and pancreas from each rat were harvested for investigations. The levels of serum amylase (AMY) and diamine oxidase (DAO) were determined using biochemical methods, and serum tumor necrosis factor (TNF)-α level was measured by an enzyme linked immunosorbent assay. Pathologic changes in the harvested tissues were investigated by microscopic examination of hematoxylin and eosin-stained tissue sections. The expressions of sPLA2 at mRNA and protein levels were detected by reverse transcriptase PCR and Western blot, respectively. A terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay was used to investigate apoptosis of epithelial cells in the intestinal tissues.
RESULTS: Compared to the control group, the expression of sPLA2 at both the mRNA and protein levels increased significantly in the SAP group (0.36 ± 0.13 vs 0.90 ± 0.38, and 0.16 ± 0.05 vs 0.64 ± 0.05, respectively; Ps < 0.01). The levels of AMY, TNF-α and DAO in serum were also significantly increased (917 ± 62 U/L vs 6870 ± 810 U/L, 59.7 ± 14.3 ng/L vs 180.5 ± 20.1 ng/L, and 10.37 ± 2.44 U/L vs 37.89 ± 5.86 U/L, respectively; Ps < 0.01). The apoptosis index of intestinal epithelial cells also differed significantly between the SAP and control rats (0.05 ± 0.02 vs 0.26 ± 0.06; P < 0.01). The serum levels of DAO and TNF-α, and the intestinal apoptosis index significantly correlated with sPLA2 expression in the intestine (r = 0.895, 0.893 and 0.926, respectively; Ps < 0.05). The levels of sPLA2, AMY, TNF-α, and DAO in the QYT, VER, and DEX groups were all decreased compared with the SAP group, but not the control group. Qingyi decoction intervention, however, gave the most therapeutic effect against intestinal barrier damage, although the onset of its therapeutic effect was slower.
CONCLUSION: Qingyi decoction ameliorates acute pancreatitis-induced intestinal barrier injury by inhibiting the overexpression of intestinal sPLA2. This mechanism may be similar to that of verapamil.
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Li P, Tang XD, Cai ZX, Qiu JJ, Lin XL, Zhu T, Owusu L, Guo HS. CNP signal pathway up-regulated in rectum of depressed rats and the interventional effect of Xiaoyaosan. World J Gastroenterol 2015; 21:1518-1530. [PMID: 25663771 PMCID: PMC4316094 DOI: 10.3748/wjg.v21.i5.1518] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 08/28/2014] [Accepted: 10/21/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the distribution and expression of C-type natriuretic peptide (CNP)/natriuretic peptide receptor B (NPR-B) in the rectum of a rodent depression model and the interventional effect of Xiaoyaosan (XYS).
METHODS: Male rats (n = 45) of clean grade (200 ± 20 g) were divided into five groups after one week of adaptive feeding: primary control, depression model, low dose XYS, middle dose XYS, and high dose XYS. The animal experiment continued for 3 wk. Primary controls were fed normally ad libitum. The rats of all other groups were raised in solitary and exposed to classic chronic mild unpredictable stimulation each day. XYS groups were perfused intragastrically with low dose, middle dose, and high dose XYS one hour before stimulation. Primary control and depression model groups were perfused intragastrically with normal saline under similar conditions as the XYS groups. Three weeks later, all rats were sacrificed, and the expression levels of CNP and NPR-B in rectum tissues were analyzed by immunohistochemistry, real-time polymerase chain reaction, and Western blotting.
RESULTS: CNP and NPR-B were both expressed in the rectum tissues of all rats. However, the expression levels of CNP and NPR-B at both gene and protein levels in the depression model group were significantly higher when compared to the primary control group (n = 9; P < 0.01). XYS intervention markedly inhibited the expression levels of CNP and NPR-B in depressed rats. The expression levels of CNP and NPR-B in the high dose XYS group did not significantly differ from the expression levels in the primary control group. Additionally, the high and middle dose XYS groups (but not the low dose group) significantly exhibited lower CNP and NPR-B expression levels in the rectum tissues of the respectively treated rats compared to the untreated depression model cohort (n = 9; P < 0.01).
CONCLUSION: The CNP/NPR-B pathway is upregulated in the rectum of depressed rats and may be one mechanism for depression-associated digestive disorders. XYS antagonizes this pathway at least partially.
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MESH Headings
- Animals
- Antidepressive Agents/pharmacology
- Behavior, Animal/drug effects
- Depression/drug therapy
- Depression/genetics
- Depression/metabolism
- Depression/psychology
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Drugs, Chinese Herbal/pharmacology
- Male
- Natriuretic Peptide, C-Type/genetics
- Natriuretic Peptide, C-Type/metabolism
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Receptors, Atrial Natriuretic Factor/drug effects
- Receptors, Atrial Natriuretic Factor/genetics
- Receptors, Atrial Natriuretic Factor/metabolism
- Rectum/drug effects
- Rectum/metabolism
- Signal Transduction/drug effects
- Time Factors
- Up-Regulation
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Owusu L, Wang B, Du Y, Li W, Xin Y. The quantum of initial transformed cells potentially modulates the type of local inflammation mechanism elicited by surrounding normal epithelial tissues and systemic immune pattern for tumor arrest or progression. J Cancer 2015; 6:128-38. [PMID: 25561977 PMCID: PMC4280395 DOI: 10.7150/jca.10787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 11/20/2014] [Indexed: 12/03/2022] Open
Abstract
The immune/ inflammation system potentially serves to arrest, eliminate or promote tumor development. Nonetheless, factors that dictate the choice are not comprehensively known yet. Using a B16/F1 syngeneic wild type model, we evaluated the essentiality of initial transformed cells' density for overt tumor development, the molecular trends of inflammatory mediators in the normal tumor-adjacent epithelial tissues (NTAT), and how such local events may reflect systematically in the host. Overt tumors developed, within an observatory period of at least 45 days and 90 days at most, only in mice inoculated with cancer cells above a limiting threshold of 1× 10(3) cells. Immunoblots showed early, intense and transient presence of IL-1β, IFN-γ, and both the all-thiol and disulfide forms of HMGB1 in the NTAT of non-tumor bearing mice. However, all-thiol form of HMGB1 and delayed but aberrant IL-6 expression characterized chronic inflammation in tumor bearing hosts. These local epithelial tissue events uniquely reflected in host's systemic cytokines dynamics where stable Th1/Th2 signature (IFN-γ/ IL-4) coupled with early Th1 cells polarization (IL-12/ IL-4) evidenced in non-tumor hosts but highly fluctuating Th1/ Th2 profile in tumor hosts, even before tumors became overt. This hypothesizes that the physical quantum of transformed cells that may either spontaneously arise or accrue at a locus may be crucial in orchestrating the mechanism for the type of local epithelial tissue and systemic immune/ inflammatory responses essential for tumor progression or arrest.
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Affiliation(s)
- Lawrence Owusu
- 1. Department of Biotechnology, Dalian Medical University, Dalian 116044, P.R. China
- 3. Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Bo Wang
- 2. Department of Pathology, Dalian Medical University, Dalian 116044, P.R. China
| | - Yue Du
- 2. Department of Pathology, Dalian Medical University, Dalian 116044, P.R. China
| | - Weiling Li
- 1. Department of Biotechnology, Dalian Medical University, Dalian 116044, P.R. China
| | - Yi Xin
- 1. Department of Biotechnology, Dalian Medical University, Dalian 116044, P.R. China
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Zhang Y, Duan W, Owusu L, Wu D, Xin Y. Epigallocatechin-3-gallate induces the apoptosis of hepatocellular carcinoma LM6 cells but not non-cancerous liver cells. Int J Mol Med 2014; 35:117-24. [PMID: 25370579 DOI: 10.3892/ijmm.2014.1988] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 09/17/2014] [Indexed: 11/06/2022] Open
Abstract
Epigallocatechin-3-gallate (EGCG) is a constituent of green tea and has been associated with anticancer activity. In the present study, the inhibitory effect of EGCG on human hepatocellular cancer cells was examined by cell viability assay, in vitro apoptosis assay and cell cycle analysis. In addition, gene expression was measured to elucidate the molecular mechanisms of action of EGCG by mitochondrial membrane potential (MMP) determination and western blot analysis. We demonstrated that EGCG induced apoptosis, decreased mitochondrial membrane potential and promoted G0/G1 phase cell cycle arrest of HCCLM6 cells but not that of non-cancerous liver cells (HL-7702). The EGCG-induced apoptosis of HCCLM6 cells was associated with a significant decrease in Bcl-2 and NF-κB expression. In addition, the expression of Bax, p53, caspase-9 and caspase-3 increased, and cytochrome c was released. These results suggest that EGCG inhibits the progression of cancer through cytocidal activity and that it is a potential therapeutic compound for hepatocellular carcinoma (HCC).
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Affiliation(s)
- Yunjuan Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Wei Duan
- School of Medicine, Deakin University, Victoria 3216, Australia
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Dachang Wu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Yi Xin
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
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21
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Qiu J, Ma Y, Owusu L, Jiang T, Xin Y. Functional analysis of serine acetyltransferase from Mycobacterium smegmatis. J Basic Microbiol 2014; 54:670-7. [PMID: 24652708 DOI: 10.1002/jobm.201300858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/28/2013] [Accepted: 02/07/2014] [Indexed: 11/08/2022]
Abstract
Serine acetyltransferase (CysE) is involved in L-cysteine biosynthesis in Mycobacterium, and it is important for the self-defense mechanism of the bacteria. Mycobacterium tuberculosis CysE (Rv2335) has been identified as a serine acetyltransferase, and it is orthologous to Mycobacterium smegmatis MSMEG_5947. In this study, the MSMEG_5947 gene was cloned, expressed, and identified as a serine acetyltransferase. To investigate the function of M. smegmatis CysE, a MSMEG_5947 knockout mutant strain (M. sm-ΔM_5947) was generated through homologous recombination. The growth and morphological characteristics of this strain were studied using growth curves and electron microscopy, respectively. M. sm-ΔM_5947 grew slower than M. smegmatis mc(2) 155. Electron microscopy revealed that the lack of the M. smegmatis CysE protein caused drastic morphological changes. Therefore, deletion of the serine acetyltransferase retards the growth of the Mycobacterium, but serine acetyltransferase expression is not essential for the survival of the bacteria.
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Affiliation(s)
- Juanjuan Qiu
- Centralab, the First Affiliated Hospital of Dalian Medical University, Dalian, China
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Wan Y, Xin Y, Zhang C, Wu D, Ding D, Tang L, Owusu L, Bai J, Li W. Fermentation supernatants of Lactobacillus delbrueckii inhibit growth of human colon cancer cells and induce apoptosis through a caspase 3-dependent pathway. Oncol Lett 2014; 7:1738-1742. [PMID: 24765211 PMCID: PMC3997687 DOI: 10.3892/ol.2014.1959] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [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: 07/17/2013] [Accepted: 02/18/2014] [Indexed: 11/06/2022] Open
Abstract
Probiotic bacteria are known to exert a wide range of beneficial effects on their animal hosts. Therefore, the present study explored the effect of the supernatants obtained from Lactobacillus delbrueckii fermentation (LBF) on colon cancer. The results indicated that the proliferation of LBF solution-treated colon cancer SW620 cells was arrested and accumulated in the G1 phase in a concentration-dependent manner. The LBF solution efficiently induced apoptosis through the intrinsic caspase 3-depedent pathway, with a corresponding decreased expression of Bcl-2. The activity of matrix metalloproteinase 9, which is associated with the invasion of colon cancer cells, was also decreased in the LBF-treated cells. In conclusion, the results demonstrate the antitumor effect of LBF in vitro and may contribute to the development of novel therapies for the treatment of colon cancer.
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Affiliation(s)
- Ying Wan
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Yi Xin
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Cuili Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Dachang Wu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Dapeng Ding
- Clinical Laboratory Department, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Li Tang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Jing Bai
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
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Kow Nanse Arthur F, Adu-Frimpong M, Osei-Yeboah J, Obu Mensah F, Owusu L. The prevalence of metabolic syndrome and its predominant components among pre-and postmenopausal Ghanaian women. BMC Res Notes 2013; 6:446. [PMID: 24206898 PMCID: PMC3843598 DOI: 10.1186/1756-0500-6-446] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 11/05/2013] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Metabolic Syndrome (MetS) is a clump of risk factors for development of type 2 diabetes mellitus and cardiovascular diseases. Menopause and age are thought to predispose women to the development of metabolic syndrome. This study aimed to estimate the prevalence of MetS and identify its predominant components among pre-and postmenopausal women in the Kumasi Metropolis, Ghana.Two hundred and fifty (250) Ghanaian women were randomly selected for the study. They were evaluated for the prevalence of metabolic syndrome using the World Health Organization (WHO), National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III), International Diabetes Federation (IDF) and Harmonization (H_MS) criteria. RESULTS Out of the total subjects, 143 (57.2%) were premenopausal and 107 (42.8%) menopausal. The study population was between the ages of 20-78 years. The overall percentage prevalence of MetS were 14.4%, 25.6%, 29.2% and 30.4% according to the WHO, NCEP-ATP III, IDF and H_MS criteria, respectively. The prevalence was found to increase with age, irrespective of criterion used. Generally, MetS was significantly higher among postmenopausal women (p < 0.05 by all criteria) compared to their premenopausal cohort, but with marked inter-criteria variations. Abdominal obesity, blood pressure, fasting blood glucose, triglyceride, very low density lipoprotein cholesterol, and triglyceride-high density lipoprotein cholesterol ratio were significantly (p < 0.05) different among the two groups of women.Central obesity, higher blood pressure and raised fasting blood glucose were the predominant components that contributed to the syndrome in Ghanaian women. CONCLUSION The higher prevalence of the metabolic syndrome in postmenopausal women is an indication that they are at risk of developing cardiovascular disease and type 2 diabetes. Therefore women in that group should be monitored for the two conditions and also be advised to adopt healthy lifestyles to minimize the incidence of these conditions.
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Affiliation(s)
- Fareed Kow Nanse Arthur
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Michael Adu-Frimpong
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Medical Laboratory Technology, College of Health, Kintampo, Ghana
| | - James Osei-Yeboah
- Department of Medical Laboratory Technology, College of Health, Kintampo, Ghana
| | - Faustina Obu Mensah
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Lawrence Owusu
- Department of Medical Biochemistry and Molecular Biology, Dalian Medical University, 9 Western Section, Lvshun South Street Lvshunkou District 116044, Dalian City, PR China
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Zhang Y, Owusu L, Duan W, Jiang T, Zang S, Ahmed A, Xin Y. Anti-metastatic and differential effects on protein expression of epigallocatechin-3-gallate in HCCLM6 hepatocellular carcinoma cells. Int J Mol Med 2013; 32:959-64. [PMID: 23863984 DOI: 10.3892/ijmm.2013.1446] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 05/16/2013] [Indexed: 11/05/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide and the third highest cause of cancer-related mortality in humans. Epigallocatechin-3-gallate (EGCG) has been shown to inhibit the metastatic activity of certain cancer cells. The aim of this study was to determine the effects and molecular mechanism(s) of action of EGCG in human HCC cells. A migration and invasion assay for the metastatic behavior of HCCLM6 cells was performed. The anti-metastatic effects of EGCG were investigated by RT-PCR and gelatin zymography. A total cellular protein profile was obtained using 2-dimensional gel electrophoresis (2-DE), followed by matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS) analyses of proteins with significant differences in expression following treatment with EGCG. The results revealed that EGCG induced apoptosis and inhibited the metastasis of HCCLM6 cells. The anti-metastatic effects of EGCG were associated with the inhibition of matrix metalloproteinase (MMP)-2 and MMP-9 activity. The expression levels of far upstream element (FUSE) binding protein 1 (FUBP1), heat shock protein beta 1 (HSPB1), heat shock 60 kDa protein 1 (chaperonin) (CH60) and nucleophosmin (NPM) proteins, which are associated with metastasis, were significantly altered in the EGCG-treated HCCLM6 cells. The data from the present study suggest that EGCG has potential as a therapeutic agent for the treatment of HCC.
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Affiliation(s)
- Yunjuan Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, PR China
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Cai L, Zhao X, Jiang T, Qiu J, Owusu L, Ma Y, Wang B, Xin Y. Prokaryotic Expression, Identification and Bioinformatics Analysis of the Mycobacterium tuberculosis Rv3807c Gene Encoding the Putative Enzyme Committed to Decaprenylphosphoryl-d-arabinose Synthesis. Indian J Microbiol 2013; 54:46-51. [PMID: 24426166 DOI: 10.1007/s12088-013-0418-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 05/21/2013] [Indexed: 11/25/2022] Open
Abstract
Decaprenylphosphoryl-d-arabinofuranosyl (DPA), the immediate donor for the polymerized d-Araf residues of mycobacterial arabinan, is synthesized from 5-phosphoribose-1-diphosphate (PRPP) in three-step reactions. (i) PRPP is transferred to decaprenyl-phosphate (DP) to form decaprenylphosphoryl-d-5-phosphoribose (DPPR). (ii) DPPR is dephosphorylated to form decaprenylphosphoryl-d-ribose (DPR). (iii) DPR is formed to DPA by the epimerase. Mycobacterium tuberculosis Rv3806c and heteromeric Rv3790/Rv3791 have been identified as the PRPP: decaprenyl-phosphate 5-phosphoribosyltransferase and the epimerase respectively. Rv3807c, however, as the candidate of phospholipid phosphatase, catalyzing the biosynthesis of decapreny-l-phosphoryl-ribose (DPR) from decaprenylphosphoryl-β-d-5-phosphoribose by dephosphorylating, has no direct experimental evidence of its essentiality in any species of mycobacterium. In this study, Rv3807c gene was amplified from the genome of M. tuberculosis H37Rv by PCR, and was successfully expressed in Escherichia coli BL21 (DE3) via the recombinant plasmid pColdII-Rv3807c. The resulting protein with the 6× His-tag was identified by SDS-PAGE and Western blotting. The protein was predicted through bioinformatics to contain three transmembrane domains, the N-terminal peptide, and a core structure with phosphatidic acid phosphatase type2/haloperoxidase. This study provides biochemical and bioinformatics evidence for the importance of Rv3807c in mycobacteria, and further functional studies will be conducted for validating Rv3807c as a promising phospholipid phosphatase in the synthetic pathway of DPA.
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Affiliation(s)
- Lina Cai
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Xiaojiao Zhao
- TB Laboratory of Shenyang Chest Hospital, Shenyang, 110044 People's Republic of China
| | - Tao Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Juanjuan Qiu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Yufang Ma
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Bo Wang
- Department of Pathology, Dalian Medical University, Dalian, 116044 People's Republic of China
| | - Yi Xin
- Department of Biotechnology, Dalian Medical University, Dalian, 116044 People's Republic of China
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Zhu W, Owusu L, Zang S, Zhang Y, Xin Y, Yan C. GRP78 and GAL3, differentially regulated by lymph node homogenates, as potential biomarkers for lymph node metastasis in mouse hepatocellular carcinoma cells. Oncol Lett 2012. [PMID: 23205138 DOI: 10.3892/ol.2012.915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In order to systematically evaluate the influence of lymph nodes (LNs) in lymph node metastases (LNM) of hepatocellular carcinoma (HCC), we set up a new in vitro model in which Hca-F and Hca-P cells were cultured in medium containing lymph node homogenates (LNHs). Differential protein expression was measured by two-dimensional gel electrophoresis (2-DE) combined with matrix-assisted laser desorption/ionization time-of-flight/time-of-flight mass spectrometry (MALDI TOF/TOF MS). Results from protein identification revealed two metastatic correlative proteins, 78-kDa glucose-regulated protein (GRP78) and galectin-3 (GAL3). Western blotting confirmed that GRP78, a protein positively correlated with metastasis, increased 2.4-fold in Hca-F cells but decreased to almost a half in Hca-P cells (P<0.05). However, GAL3, a protein negatively correlated with metastasis, was decreased by a half in Hca-F cells but slightly increased non-significantly in Hca-P cells. Thus, our results reveal that some components of LNHs may facilitate a permissive environment for cancer cells with high metastasis potential to eventually metastasize. GRP78 and GAL3 may serve as potential biomarkers for the diagnosis of LNM in HCC.
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Affiliation(s)
- Wenjun Zhu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning116044
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Arthur FKN, Adu-Frimpong M, Osei-Yeboah J, Mensah FO, Owusu L. Prediction of metabolic syndrome among postmenopausal Ghanaian women using obesity and atherogenic markers. Lipids Health Dis 2012; 11:101. [PMID: 22883105 PMCID: PMC3479426 DOI: 10.1186/1476-511x-11-101] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 07/24/2012] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is an important health problem which puts individuals at risk for cardiovascular diseases and type 2 diabetes as well as obesity-related cancers such as colon and renal cell in men, and endometrial and oesophageal in women. OBJECTIVE This study was aimed at examining how obesity indicators and related determinants influence metabolic syndrome, and how the factors can be used to predict the syndrome and its cut-offs in postmenopausal Ghanaian women. METHODS Two hundred and fifty (250) Ghanaian subjects were involved in the study with one hundred and forty-three (143) being premenopausal women and one hundred and seven (107) postmenopausal women. The influence of traditional metabolic risk factors including high blood pressure, dyslipidemia and glucose intolerance on obesity and atherogenic indices i.e. body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), Waist-to-thigh ratio (WTR), waist-to-height ratio (WHtR), high density lipoprotein cholesterol to total cholesterol ratio (HDL-C/TC), high density lipoprotein cholesterol to low density lipoprotein ratio (HDL-C/LDL-C) and triglyceride to high density lipoprotein cholesterol ratio (TG/HDL-C) were identified according to the Harmonization (H_MS) criterion. RESULTS The predominant anthropometric marker that significantly influence metabolic risk factors among the pre- and postmenopausal women was waist-to-hip ratio (premenopausal: p- 0.004, 0.026 and 0.002 for systolic blood pressure (SBP), fasting blood glucose (FBG) and HDL-C; postmenopausal: p-0.012, 0.048, 0.007 and 0.0061 for diastolic blood pressure (DBP), FBG, triglyceride (TG) and high density lipoprotein cholesterol (HDL-C) respectively). Using the receiver operating characteristic (ROC) analysis, the area under the curve for WC, WHR, TG/HDL-C and HDL-C/TC among postmenopausal women were estimated at 0.6, 0.6, 0.8 and 0.8 respectively. The appropriate cut-off values for WC, WHR, TG/HDL-C and HDL-C/TC that predicted the presence of metabolic syndrome were 80.5 cm, 0.84, 0.61 and 0.34 respectively. CONCLUSION The presence of metabolic syndrome among Ghanaian postmenopausal women can be predicted using WC, WHR, TG/HDL-C and HDL-C/TC.
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Affiliation(s)
- Fareed K N Arthur
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Michael Adu-Frimpong
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - James Osei-Yeboah
- Department of Medical Laboratory Technology, College of Health, Kintampo, Ghana
| | - Faustina O Mensah
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Lawrence Owusu
- Department of Medical Biochemistry and Molecular Biology, Dalian Medical University, 116044, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian City, P.R. China
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Abstract
BACKGROUND AND PURPOSE Endemic Burkitt's lymphoma (eBL) remains the prevalent form of paediatric cancer in tropical Africa with subtle pathological differences. This calls for intensified efforts to validate the global prognostic markers within local settings for improved cancer treatment and survival. This study proposes prognostic markers for enhanced eBL treatment and management. PATIENTS AND METHOD One hundred and eighty histologically and/or clinically diagnosed BL patients at Komfo Anokye Teaching Hospital, Kumasi, Ghana were eligible for this cross-sectional eight-year retrospective study. Biochemical, clinical and demographic data, before chemotherapy administration, were documented and examined for their progression-free (PFS) and overall survival (OS) significance. RESULTS A mean age of 6 (SD=2.7, range: 1-16) years was observed with general male dominance (M:F=1.69:1). Total serum lactate dehydrogenase (HR=2.04; 95% CI, 1.25-3.32; log rank=8.3; p=0.004), serum creatinine (HR=3.59; 95% CI, 1.62-7.98; log rank=15.4; p=0.002) and St. Jude stage (HR=1.74; 95% CI, 1.11-2.73; log rank=8.0; p=0.015) were important independent prognostic biochemical markers for both PFS and OS. Age, serum calcium, uric acid, potassium, sodium and phosphorus were non-prognostic. CONCLUSION The better monitoring of these prognostic indices coupled with risk-stratification treatment may improve patients' survival, especially in resource-limited settings.
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Affiliation(s)
- F K N Arthur
- Department of Biochemistry and Biotechnology, College of Science, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
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Owusu L, Yeboah FA, Osei-Akoto A, Rettig T, Arthur FKN. Clinical and epidemiological characterisation of Burkitt's lymphoma: an eight-year case study at Komfo Anokye Teaching Hospital, Ghana. Br J Biomed Sci 2010; 67:9-14. [PMID: 20373676 DOI: 10.1080/09674845.2010.11730283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Endemic Burkitt's lymphoma (BL) is a juvenile malignant neoplasm of B-lymphocyte origin, markedly affected by climate, vegetation and geographical location. This real country-based, cross-sectional, retrospective study reviews all out-patient clinical records of patients histologically and/or clinically diagnosed with BL from January, 2000 to December, 2007 at the Komfo Anokye Teaching Hospital, Ghana, a country within the malaria and lymphoma belts of the world. The aim of the study is to clinically and epidemiologically characterise all cases of BL over an eight-year period to ascertain the most common form of BL demographically prevalent. A mean age of 6.9 +/- 2.7 (range: 1-16) was observed. Males generally dominated in incidence (M:F=1.43:1, P<0.001) and significantly with facial presentation (P<0.05). Females weakly dominated in abdominal tumour presentation (P>0.05). The age range 4-8 years was the high risk range (P<0.001) for both sexes. Males were affected early in life (4-7 years) compared to their female counterparts (6-11 years). Of the 551 cases reviewed, 48.3%, 32.7%, 15.8% and 3.3% involved the face, abdomen, combined facial and abdominal and either facial or abdominal with central nervous system (CNS) involvement (usually paraplegia), respectively. An intriguing observation was evident between facial and combined facial and abdominal cases which exhibited reversed trends in incidence. Three regions within the forest zone showed significantly higher (P<0.001) incidences compared to the seven cohorts from the coastal and savannah agro-ecological zones of Ghana. No region was explicitly associated with any particular clinical presentation. The study has shown that although BL can present with demographic patterns in prevalence within a given geographical location, no clinical characterisation is associated with such patterns.
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Affiliation(s)
- L Owusu
- Department of Biochemistry, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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