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Pei X, Li H, Yu H, Wang W, Mao D. APN Expression in Serum and Corpus Luteum: Regulation of Luteal Steroidogenesis Is Possibly Dependent on the AdipoR2/AMPK Pathway in Goats. Cells 2023; 12:1393. [PMID: 37408227 DOI: 10.3390/cells12101393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/23/2023] [Accepted: 05/09/2023] [Indexed: 07/07/2023] Open
Abstract
Adiponectin (APN) is an essential adipokine for a variety of reproductive processes. To investigate the role of APN in goat corpora lutea (CLs), CLs and sera from different luteal phases were collected for analysis. The results showed that the APN structure and content had no significant divergence in different luteal phases both in CLs and sera; however, high molecular weight APN was dominant in serum, while low molecular weight APN was more present in CLs. The luteal expression of both AdipoR1/2 and T-cadherin (T-Ca) increased on D11 and 17. APN and its receptors (AdipoR1/2 and T-Ca) were mainly expressed in goat luteal steroidogenic cells. The steroidogenesis and APN structure in pregnant CLs had a similar model as in the mid-cycle CLs. To further explore the effects and mechanisms of APN in CLs, steroidogenic cells from pregnant CLs were isolated to detect the AMPK-mediated pathway by the activation of APN (AdipoRon) and knockdown of APN receptors. The results revealed that P-AMPK in goat luteal cells increased after incubation with APN (1 μg/mL) or AdipoRon (25 μM) for 1 h, and progesterone (P4) and steroidogenic proteins levels (STAR/CYP11A1/HSD3B) decreased after 24 h. APN did not affect the steroidogenic protein expression when cells were pretreated with Compound C or SiAMPK. APN increased P-AMPK and reduced the CYP11A1 expression and P4 levels when cells were pretreated with SiAdipoR1 or SiT-Ca, while APN failed to affect P-AMPK, the CYP11A1 expression or the P4 levels when pretreated with SiAdipoR2. Therefore, the different structural forms of APN in CLs and sera may possess distinct functions; APN might regulate luteal steroidogenesis through AdipoR2 which is most likely dependent on AMPK.
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Affiliation(s)
- Xiaomeng Pei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Haolin Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Dagan Mao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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2
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Jiang GJ, Fan TJ. Novel techniques to prevent apoptosis and improve regeneration in corneal endothelial cells. EXPERT REVIEW OF OPHTHALMOLOGY 2020. [DOI: 10.1080/17469899.2020.1794821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Guo-Jian Jiang
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, China
| | - Ting-Jun Fan
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, China
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3
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Muraki M. Sensitization to cell death induced by soluble Fas ligand and agonistic antibodies with exogenous agents: A review. AIMS MEDICAL SCIENCE 2020. [DOI: 10.3934/medsci.2020011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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4
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Han C, He X, Xia X, Guo J, Liu A, Liu X, Wang X, Li C, Peng S, Zhao W, Zhou M, Shi X, Li Y, Li Y, Shan Z, Teng W. Sphk1/S1P/S1PR1 Signaling is Involved in the Development of Autoimmune Thyroiditis in Patients and NOD.H-2 h4 Mice. Thyroid 2019; 29:700-713. [PMID: 30963819 DOI: 10.1089/thy.2018.0065] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background: There is growing evidence that sphingosine-1-phosphate (S1P), a pleiotropic bioactive sphingolipid metabolite synthesized intracellularly by two closely related sphingosine kinases (SphKs), SphK1 and SphK2, is involved in inflammation. However, the role of SphKs/S1P/S1P receptors (S1PRs) in autoimmune thyroiditis (AIT) has not been studied to date. Methods: This study examined whether SphK1/S1P/S1PR1 signaling is aberrantly altered in thyroid tissues and serum of both AIT patients and a spontaneously autoimmune thyroiditis (SAT) mouse model. Murine CD4+T cells were employed to further investigate the downstream signaling of SphK1/S1P/S1PR1. Furthermore, a total of 102 NOD.H-2h4 mice, randomly divided into different groups, were used to investigate the therapeutic effect of S1PR1 blockade and its potential mechanism. Results: We found that components of the SphK1/S1P/S1PR1 pathway were abnormally expressed in patients with Hashimoto thyroiditis and in a SAT mouse model. In addition, S1P could activate signal transducer and activator of transcription 3 (STAT3) through S1PR1 and its downstream signaling pathways in CD4+T cells of NOD.H-2h4 mice. Furthermore, an in vivo study demonstrated that blocking S1PR1 by FTY720 administration could reduce the incidence and severity of thyroiditis and goiter in SAT mice in a time-dependent manner. The proportions of STAT3-related and inflammation-related cell subtypes, such as T helper 1, T helper 17, and follicular T helper cells, were elevated in the SAT group when compared to the control group, and these cell subtypes decreased after FTY720 administration. Furthermore, the downstream inflammatory cytokines of STAT3 were also downregulated after FTY720 administration. Conclusion: The present study shows that blocking Sphk1/S1P/S1PR1 signaling can ameliorate the severity of AIT, providing evidence of a promising therapeutic target for AIT.
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Affiliation(s)
- Cheng Han
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
- 2 Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, New York
| | - Xue He
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xinghai Xia
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
- 3 Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Jiahui Guo
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Aihua Liu
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xin Liu
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xinyi Wang
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Chengyan Li
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shiqiao Peng
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wei Zhao
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
- 4 Department of Endocrinology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, China
| | - Mi Zhou
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
- 3 Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Xiaoguang Shi
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yushu Li
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yongze Li
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhongyan Shan
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Weiping Teng
- 1 Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, the First Affiliated Hospital of China Medical University, Shenyang, China
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Chen X, Lu K, Timko NJ, Weir DM, Zhu Z, Qin C, Mann JD, Bai Q, Xiao H, Nicholl MB, Wakefield MR, Fang Y. IL-33 notably inhibits the growth of colon cancer cells. Oncol Lett 2018; 16:769-774. [PMID: 29963144 PMCID: PMC6019937 DOI: 10.3892/ol.2018.8728] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 03/15/2018] [Indexed: 02/06/2023] Open
Abstract
Interleukin-33 (IL-33), a damage-associated molecular pattern molecule, is a cytokine within the IL-1 interleukin family that binds to the plasma membrane receptor suppression of tumorigenicity 2 on numerous cell types. IL-33 has been extensively studied in its role in autoimmune diseases, host responses to pathogens and allergens, and has been associated with tumorigenic effects in cancer research. The present study was performed to investigate the effects of IL-33 on colon cancer cells, based off the previous data that have demonstrated an anti-tumor effect of IL-33 on pancreatic cancer cells. The effects of IL-33 on proliferation, cell survival and apoptosis on human HCT-116 colon cancer cells were examined using clonogenic survival assays, proliferation and caspase-3 activity kits, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling staining and immunocytochemistry. It was determined that the HCT-116 cells demonstrated an notable decrease in optical density value upon incubation with IL-33, along with a decrease in the number of colonies, compared with the controls. It was further determined that the anti-proliferative effect of IL-33 on HCT-116 cells was associated with downregulation of the pro-proliferative molecules cyclin B, cyclin D and cyclin dependent kinase 2. An apoptosis-inducing effect of IL-33 on HCT-116 cells was associated with downregulation of the anti-apoptotic molecules Flice-like inhibitory protein and B-cell lymphoma 2. Taken together, the results indicated that IL-33 inhibits the growth of colon cancer by suppressing cellular proliferation, whilst simultaneously promoting apoptosis.
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Affiliation(s)
- Xuhui Chen
- Department of Surgery, Luohu Hospital, Shenzhen, Guangdong 518000, P.R. China.,Department of Microbiology, Immunology and Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA
| | - Kuanchang Lu
- Department of Microbiology, Immunology and Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA
| | - Noah J Timko
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Dylan M Weir
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Ziwen Zhu
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Chenglu Qin
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Jeffery D Mann
- Department of Microbiology, Immunology and Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Huaping Xiao
- Department of Microbiology, Immunology and Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA.,The Affiliated Hospital of Xiangnan University, Chenzhou, Hunan 423000, P.R. China
| | - Michael B Nicholl
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Yujiang Fang
- Department of Microbiology, Immunology and Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA.,Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
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6
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A Potential Role for Green Tea as a Radiation Sensitizer for Prostate Cancer. Pathol Oncol Res 2017; 25:263-268. [PMID: 29101735 DOI: 10.1007/s12253-017-0358-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 10/27/2017] [Indexed: 12/24/2022]
Abstract
Prostate cancer (PCa) is the most common non-cutaneous cancer in the United States. There is currently a lack of safe and effective radiosensitizers that can enhance the effectiveness of radiation treatment (RT) for Pca. Clonogenic assay, PCNA staining, Quick Cell Proliferation assay, TUNEL staining and caspase-3 activity assay were used to assess proliferation and apoptosis in DU145 Pca cells. RT-PCR/IHC were used to investigate the mechanisms. We found that the percentage of colonies, PCNA staining intensity, and the optical density value of DU145 cells were decreased (RT/GT vs. RT). TUNEL + cells and the relative caspase-3 activity were increased (RT/GT vs. RT). Compared to RT, the anti-proliferative effect of RT/GT correlated with increased expression of the anti-proliferative molecule p16. Compared to RT, the pro-apoptotic effect of RT/GT correlated with decreased expression of the anti-apoptotic molecule Bcl-2. GT enhances RT sensitivity of DU145 by inhibiting proliferation and promoting apoptosis.
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7
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Fang Y, Zhao L, Xiao H, Cook KM, Bai Q, Herrick EJ, Chen X, Qin C, Zhu Z, Wakefield MR, Nicholl MB. IL-33 acts as a foe to MIA PaCa-2 pancreatic cancer. Med Oncol 2017; 34:23. [PMID: 28058630 DOI: 10.1007/s12032-016-0880-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 12/29/2016] [Indexed: 12/23/2022]
Abstract
IL-33 is a member of the IL-1 family of cytokines, and no study has been performed to address its direct anti-tumor effect. This study is designed to investigate whether IL-33 has any direct effect on pancreatic cancer. Clonogenic survival assay, immunohistochemistry, TUNEL staining, proliferation, caspase-3 activity kits and RT-PCR were used to evaluate the effects of IL-33 on cell survival, proliferation and apoptosis of a pancreatic cancer cell line, MIA PaCa-2. We found that the percentage of colonies of MIA PaCa-2 cells, PCNA+ cells and the OD value of cancer cells were all decreased in the presence of IL-33. TUNEL+ cells and the relative caspase-3 activity in cancer cells were increased in the presence of IL-33. We further found that its anti-proliferative effect on cancer cells correlated with downregulation of pro-proliferative molecules cdk2 and cdk4 and upregulation of anti-proliferative molecules p15, p21 and p53. Its pro-apoptotic effect correlated with downregulation of anti-apoptotic molecule FLIP and upregulation of pro-apoptotic molecule TRAIL. These results suggest that IL-33 presents significant anti-tumor effects by inhibition of proliferation and induction of apoptosis of MIA PaCa-2 pancreatic cancer cells. Thus, strength of IL-33/ST2 signal pathway might be a promising way to treat pancreatic cancer.
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Affiliation(s)
- Yujiang Fang
- Department of Microbiology, Immunology and Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA. .,Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA.
| | - Lei Zhao
- Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Huaping Xiao
- Department of Microbiology, Immunology and Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA.,The Affiliated Hospital of Xiangnan University, Chenzhou, Hunan, China
| | - Kathryn M Cook
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Elizabeth J Herrick
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Xuhui Chen
- Department of Microbiology, Immunology and Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA.,Luohu Hospital, Shenzhen, China
| | - Chenglu Qin
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA.,Luohu Hospital, Shenzhen, China
| | - Ziwen Zhu
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Michael B Nicholl
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA.,Department of Surgery, South Texas Veterans Health Care System, 7400 Merton Minter Blvd, San Antonio, TX, 78229, USA
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8
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Zhu Z, Davidson KT, Brittingham A, Wakefield MR, Bai Q, Xiao H, Fang Y. Trichomonas vaginalis: a possible foe to prostate cancer. Med Oncol 2016; 33:115. [PMID: 27613161 DOI: 10.1007/s12032-016-0832-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 09/03/2016] [Indexed: 12/13/2022]
Abstract
Prostate cancer (PCA) is the most common malignancy in men in USA, and the role of Trichomonas vaginalis (T. vag) in the development of PCA is still controversial. Clonogenic assay, PCNA staining, TUNEL staining and caspase-3 activity assay were used to investigate the in vitro role of T. vag in human prostate cancer. We further investigated the possible molecular mechanisms using RT-PCR and immunohistochemical staining. Culture supernatant of T. vag inhibits growth of PC-3 prostate cancer cells, and this correlated with upregulation of p21. Culture supernatant of T. vag induced apoptosis of PC-3 cells, and this correlated with downregulation of Bcl-2. The growth inhibition effect of culture supernatant of T. vag is also demonstrated in another prostate cancer cell line DU145, suggesting that its effect is not specific to one prostate cancer cell line. Culture supernatant of T. vag inhibits growth of prostate cancer by inhibition of proliferation and promotion of apoptosis. Such a study might be helpful to address the association between PCA and infection of T. vag.
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Affiliation(s)
- Ziwen Zhu
- Department of Microbiology, Immunology & Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA.,Department of Surgery, University of Missouri School of Medicine, Columbia, 65212, MO, USA
| | - Kristoffer T Davidson
- Department of Microbiology, Immunology & Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA
| | - Andrew Brittingham
- Department of Microbiology, Immunology & Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, 65212, MO, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, 65212, MO, USA
| | - Huaping Xiao
- Department of Microbiology, Immunology & Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA.,The Affiliated Hospital of Xiangnan University, Chenzhou, Hunan, China
| | - Yujiang Fang
- Department of Microbiology, Immunology & Pathology, College of Osteopathic Medicine, Des Moines University, Des Moines, IA, 50312, USA. .,Department of Surgery, University of Missouri School of Medicine, Columbia, 65212, MO, USA.
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Tsuchiya Y, Nakabayashi O, Nakano H. FLIP the Switch: Regulation of Apoptosis and Necroptosis by cFLIP. Int J Mol Sci 2015; 16:30321-41. [PMID: 26694384 PMCID: PMC4691174 DOI: 10.3390/ijms161226232] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/09/2015] [Accepted: 12/11/2015] [Indexed: 12/11/2022] Open
Abstract
cFLIP (cellular FLICE-like inhibitory protein) is structurally related to caspase-8 but lacks proteolytic activity due to multiple amino acid substitutions of catalytically important residues. cFLIP protein is evolutionarily conserved and expressed as three functionally different isoforms in humans (cFLIPL, cFLIPS, and cFLIPR). cFLIP controls not only the classical death receptor-mediated extrinsic apoptosis pathway, but also the non-conventional pattern recognition receptor-dependent apoptotic pathway. In addition, cFLIP regulates the formation of the death receptor-independent apoptotic platform named the ripoptosome. Moreover, recent studies have revealed that cFLIP is also involved in a non-apoptotic cell death pathway known as programmed necrosis or necroptosis. These functions of cFLIP are strictly controlled in an isoform-, concentration- and tissue-specific manner, and the ubiquitin-proteasome system plays an important role in regulating the stability of cFLIP. In this review, we summarize the current scientific findings from biochemical analyses, cell biological studies, mathematical modeling, and gene-manipulated mice models to illustrate the critical role of cFLIP as a switch to determine the destiny of cells among survival, apoptosis, and necroptosis.
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Affiliation(s)
- Yuichi Tsuchiya
- Department of Biochemistry, Toho University School of Medicine, Tokyo 143-8540, Japan.
| | - Osamu Nakabayashi
- Department of Biochemistry, Toho University School of Medicine, Tokyo 143-8540, Japan.
| | - Hiroyasu Nakano
- Department of Biochemistry, Toho University School of Medicine, Tokyo 143-8540, Japan.
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10
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Fang Y, Chen X, Bai Q, Qin C, Mohamud AO, Zhu Z, Ball TW, Ruth CM, Newcomer DR, Herrick EJ, Nicholl MB. IL-9 inhibits HTB-72 melanoma cell growth through upregulation of p21 and TRAIL. J Surg Oncol 2015; 111:969-74. [PMID: 25988864 DOI: 10.1002/jso.23930] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 04/14/2015] [Indexed: 01/01/2023]
Abstract
BACKGROUND IL-9 is a pleiotropic cytokine produced mainly by Th9 cells. IL-9 may have an anti-proliferative role in murine melanoma, however, its effect on human melanoma is unknown. METHODS We examined the effects of IL-9 on proliferation and apoptosis in four human melanoma cell lines, HTB-65, HTB-72, CRL-11147, and SK-Mel-5. Clonogenic assay, PCNA staining, Quick Cell Proliferation assay, TUNEL staining and caspase-3 activity assay were used to assess proliferation and apoptosis, as appropriate. RESULTS We found that IL-9 decreased the percentage of colonies of HTB-72 and SK-Mel-5 cells but not that of HTB-65 or CRL-11147 cells. PCNA mRNA, PCNA+ cells, PCNA staining intensity, and the OD value of HTB-72 melanoma cells were consistently decreased in the present of IL-9. IL-9 also increased TUNEL+ cells and the relative caspase-3 activity in HTB-72 melanoma cells. We further investigated the possible molecular mechanisms using RT-PCR and immunohistochemical staining. The anti-proliferative effect of IL-9 on HTB-72 cells correlated with higher expression of anti-proliferative molecule p21. Its pro-apoptotic effect on HTB-72 cells correlated with higher expression of the pro-apoptotic molecule TRAIL. CONCLUSIONS IL-9 inhibits melanoma HTB-72 cell growth by upregulation of p21 and TRAIL. Understanding the interactions between IL-9 and melanoma may help direct strategies for cytokine-based immunotherapy development.
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Affiliation(s)
- Yujiang Fang
- Department of Microbiology & Immunology, Des Moines University, Des Moines, Iowa.,Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri.,Ellis Fischel Cancer Center, University of Missouri School of Medicine, Columbia, Missouri
| | - Xuhui Chen
- Department of Microbiology & Immunology, Des Moines University, Des Moines, Iowa.,Department of Surgery, Luohu Hospital, Shenzhen, China
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Chenglu Qin
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri.,Department of Gynecology & Obstetrics, Luohu Hospital, Shenzhen, China
| | - Abdimalik O Mohamud
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Ziwen Zhu
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Tyler W Ball
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Caleb M Ruth
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Dylan R Newcomer
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Elizabeth J Herrick
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
| | - Michael B Nicholl
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri.,Ellis Fischel Cancer Center, University of Missouri School of Medicine, Columbia, Missouri
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11
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Fang Y, DeMarco VG, Nicholl MB. Resveratrol enhances radiation sensitivity in prostate cancer by inhibiting cell proliferation and promoting cell senescence and apoptosis. Cancer Sci 2012; 103:1090-8. [PMID: 22417066 DOI: 10.1111/j.1349-7006.2012.02272.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 01/31/2012] [Accepted: 03/08/2012] [Indexed: 12/17/2022] Open
Abstract
Radiation therapy (XRT) for treatment of localized prostate cancer (PCA) has outcomes similar to surgery and medical therapy. Toxicities of XRT and the relative radioresistance of PCA limit the effectiveness of this treatment method. Safe and effective radiosensitizing agents are lacking to enhance the effectiveness for XRT for PCA. In this study, the effect of XRT in combination with the radiosensitizing agent resveratrol (RSV) was investigated in a radioresistant PCA cell line, PC-3. Our results show the addition of RSV to XRT (XRT/RSV) synergistically enhanced XRT-induced apoptosis and inhibition of PC-3 proliferation. The antiproliferative effect of XRT/RSV treatment correlated with increased expression of p15, p21, and mutant p53 and decreased expression of cyclin B, cyclin D, and cdk2. Increased apoptosis correlated with increased expression of Fas and TRAILR1. Furthermore, XRT/RSV had little effect on the expression of p-AKT, whereas it increased the expression level of p-H2A.X, a marker for senescence. These data highlight the potential of RSV as a radiation sensitizer for PCA treatment and warrant further investigation.
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Affiliation(s)
- Yujiang Fang
- Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri, USA.
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12
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Fang Y, Yu S, Braley-Mullen H. TGF-β promotes proliferation of thyroid epithelial cells in IFN-γ(-/-) mice by down-regulation of p21 and p27 via AKT pathway. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 180:650-60. [PMID: 22119715 DOI: 10.1016/j.ajpath.2011.10.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/21/2011] [Accepted: 10/17/2011] [Indexed: 01/20/2023]
Abstract
IFN-γ(-/-) NOD.H-2h4 mice develop an autoimmune disease characterized by hyperplasia and proliferation of thyroid epithelial cells (TEC H/P). Proliferating TECs produce TGF-β, and IFN-γ inhibits TEC H/P. In the present study, cultured TECs were used to directly determine the mechanisms by which these cytokines act on TECs to result in proliferation or inhibition of proliferation. With TECs from IFN-γ(-/-) NOD.H-2h4 mice or mice expressing the dominant negative TGF-β type II receptor on TECs, TGF-β was shown to promote TEC proliferation and IFN-γ was shown to inhibit TEC proliferation in vitro. TGF-β may promote TEC proliferation by down-regulating antiproliferative molecules p21 and p27, whereas IFN-γ may inhibit proliferation by up-regulating antiproliferative molecules p18 and p21 and down-regulating the pro-proliferative molecule cyclin D. Inhibition of AKT abolished the effect of TGF-β on p21 and p27, resulting in similar proliferation of TGF-β-treated and control TECs. Increased expression of proliferating cell nuclear antigen (PCNA), TGF-β, and p-AKT and decreased expression of p21 and p27 by proliferating TECs correlated with the proliferative state of TEC H/P. Taken together, the results suggest that TGF-β promotes TEC proliferation by down-regulating p21 and p27 via the AKT pathway in IFN-γ(-/-) NOD.H-2h4 mice, which may have significant implications for development of effective therapeutic strategies targeting the TGF-β and AKT pathways for treatment of hyperplasia and/or neoplasia.
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Affiliation(s)
- Yujiang Fang
- Department of Internal Medicine, School of Medicine, University of Missouri, Columbia, MO 65212, USA
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Apoptosis modulation as a promising target for treatment of systemic sclerosis. Int J Rheumatol 2011; 2011:495792. [PMID: 21912551 PMCID: PMC3170778 DOI: 10.1155/2011/495792] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 07/06/2011] [Accepted: 07/06/2011] [Indexed: 12/22/2022] Open
Abstract
Diffuse systemic sclerosis (SSc) is a fatal autoimmune disease characterized by an excessive ECM deposition inducing a loss of function of skin and internal organs. Apoptosis is a key mechanism involved in all the stages of the disease: vascular damage, immune dysfunction, and fibrosis. The purpose of this paper is to gather new findings in apoptosis related to SSc, to highlight relations between apoptosis and fibrosis, and to identify new therapeutic targets.
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Fang Y, Sharp GC, Braley-Mullen H. Effect of transgenic overexpression of FLIP on lymphocytes on development and resolution of experimental autoimmune thyroiditis. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:1211-20. [PMID: 21763264 DOI: 10.1016/j.ajpath.2011.05.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 04/26/2011] [Accepted: 05/05/2011] [Indexed: 11/19/2022]
Abstract
In our previous studies, resolution of granulomatous experimental autoimmune thyroiditis (G-EAT) was promoted when thyroid epithelial cells were protected from Fas-mediated apoptosis due to transgenic overexpression of FLIP. We hypothesized that if FLIP were overexpressed on lymphocytes, CD4(+) effector cells would be protected from Fas-mediated apoptosis, and resolution would be delayed. To test this hypothesis, we generated transgenic (Tg) mice overexpressing FLIP under the CD2 promoter. Transgenic FLIP was expressed on CD4(+) and CD8(+) T cells and B cells. Transgenic overexpression of FLIP protected cultured splenocytes from Fas-mediated, but not irradiation-induced, apoptosis in vitro. Unexpectedly, Tg(+) donor cells transferred minimal G-EAT, which was partially overcome by depleting donor CD8(+) T cells. When Tg(+) and Tg(-) donors transferred equivalent disease, G-EAT resolution was delayed in FLIP transgenic mice. However, CD2-FLIP Tg(+) donors often transferred less severe G-EAT, even after depletion of CD8(+) T cells. This influenced the rate of G-EAT resolution, resulting in little difference in G-EAT resolution between groups. Tg(+) mice always had reduced anti-mouse thyroglobulin autoantibody responses, compared with Tg(-) littermates, presumably because of FLIP overexpression on B cells. These results suggest that effects of transgenic FLIP on a particular autoimmune disease vary, depending on what cells express the transgene and whether those cells are effector cells or if they function to modulate disease.
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Affiliation(s)
- Yujiang Fang
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Missouri, USA.
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Yu S, Fang Y, Sharav T, Sharp GC, Braley-Mullen H. CD8+ T cells induce thyroid epithelial cell hyperplasia and fibrosis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2011; 186:2655-62. [PMID: 21220693 PMCID: PMC3280124 DOI: 10.4049/jimmunol.1002884] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CD8(+) T cells can be important effector cells in autoimmune inflammation, generally because they can damage target cells by cytotoxicity. This study shows that activated CD8(+) T cells induce thyroid epithelial cell hyperplasia and proliferation and fibrosis in IFN-γ(-/-) NOD.H-2h4 SCID mice in the absence of CD4(+) T cells. Because CD8(+) T cells induce proliferation rather than cytotoxicity of target cells, these results describe a novel function for CD8(+) T cells in autoimmune disease. In contrast to the ability of purified CD8(+) T cells to induce thyrocyte proliferation, CD4(+) T cells or CD8 T cell-depleted splenocytes induced only mild thyroid lesions in SCID recipients. T cells in both spleens and thyroids highly produce TNF-α. TNF-α promotes proliferation of thyrocytes in vitro, and anti-TNF-α inhibits development of thyroid epithelial cell hyperplasia and proliferation in SCID recipients of IFN-γ(-/-) splenocytes. This suggests that targeting CD8(+) T cells and/or TNF-α may be effective for treating epithelial cell hyperplasia and fibrosis.
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Affiliation(s)
- Shiguang Yu
- Department of Veterans Affairs Research Service, Columbia, Mo 65212
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo 65212
- Arkansas Biosciences Institute, Department of Biological Science, Arkansas State University, Jonesboro, AR 72467
| | - Yujiang Fang
- Department of Veterans Affairs Research Service, Columbia, Mo 65212
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo 65212
| | - Tumenjargal Sharav
- Department of Veterans Affairs Research Service, Columbia, Mo 65212
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo 65212
| | - Gordon C. Sharp
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo 65212
- Department of Pathology, University of Missouri School of Medicine, Columbia, Mo 65212
| | - Helen Braley-Mullen
- Department of Veterans Affairs Research Service, Columbia, Mo 65212
- Department of Internal Medicine, University of Missouri School of Medicine, Columbia, Mo 65212
- Department of Molecular Microbiology and Immunology, University of Missouri School of Medicine, Columbia, Mo 65212
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Fang Y, Yu S, Ellis JS, Sharav T, Braley-Mullen H. Comparison of sensitivity of Th1, Th2, and Th17 cells to Fas-mediated apoptosis. J Leukoc Biol 2010; 87:1019-28. [PMID: 20179154 DOI: 10.1189/jlb.0509352] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Following activation through the TCR, CD4+ T cells can differentiate into three major subsets: Th1, Th2, and Th17 cells. IL-17-secreting Th17 cells play an important role in the pathogenesis of several autoimmune diseases and in immune responses to pathogens, but little is known about the regulation of apoptosis in Th17 cells. In this study, the sensitivity of in vitro-polarized Th1, Th2, and Th17 cells to Fas-mediated apoptosis was compared directly by different methods. The order of sensitivity of T cell subsets to Fas-mediated apoptosis is: Th1 > Th17 > Th2. The greater sensitivity of Th17 cells to Fas-mediated apoptosis compared with Th2 cells correlated with their higher expression of FasL and comparable expression of the antiapoptotic molecule FLIP. The decreased sensitivity of Th17 compared with Th1 cells correlated with the higher expression of FLIP by Th17 cells. Transgenic overexpression of FLIP in T cells protected all three subsets from Fas-mediated apoptosis. These findings provide new knowledge for understanding how survival of different subsets of T cells is regulated.
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Affiliation(s)
- Yujiang Fang
- Research Service, Harry S. Truman Memorial VA Hospital, Department of Internal Medicine, School of Medicine, University of Missouri, Columbia, Missouri, USA
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Fang Y, Sharp GC, Yagita H, Braley-Mullen H. A critical role for TRAIL in resolution of granulomatous experimental autoimmune thyroiditis. J Pathol 2008; 216:505-13. [PMID: 18810759 DOI: 10.1002/path.2428] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Granulomatous experimental autoimmune thyroiditis (G-EAT) is induced by mouse thyroglobulin (MTG)-sensitized splenocytes activated in vitro with MTG and IL-12. Thyroid lesions reach maximal severity 20 days after cell transfer, and usually resolve or progress to fibrosis by day 60 depending on the extent of thyroid damage at day 20. Our previous studies indicated that neutralization of TNF-alpha or FasL had no effect on G-EAT induction, but neutralization of TNF-alpha promoted, while neutralization of FasL inhibited, G-EAT resolution. TNF-related apoptosis-inducing ligand (TRAIL) is a member of the TNF superfamily. This study was undertaken to define the role of endogenous TRAIL in G-EAT development and/or resolution. Neutralization of endogenous TRAIL had little effect on G-EAT induction, but significantly inhibited G-EAT resolution and increased thyroid fibrosis. This correlated with higher expression of pro-inflammatory cytokines and preferential expression of the pro-apoptotic molecule TRAIL, and anti-apoptotic molecules FLIP and Bcl-xL on inflammatory cells in thyroids of anti-TRAIL-treated recipients. The results suggest that endogenous TRAIL is not required for G-EAT development in recipients, but is critical for G-EAT resolution. Endogenous TRAIL might promote resolution, at least in part, through modulation of the balance between pro- and anti-inflammatory cytokines, and the expression pattern of pro- and anti-apoptotic molecules of thyroid epithelial cells (TECs) and inflammatory cells.
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Affiliation(s)
- Y Fang
- Research Service, Harry S Truman Memorial VA Hospital, University of Missouri, Columbia, MO 65212, USA.
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