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Wang Q, Greene MI. Survivin as a Therapeutic Target for the Treatment of Human Cancer. Cancers (Basel) 2024; 16:1705. [PMID: 38730657 PMCID: PMC11083197 DOI: 10.3390/cancers16091705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/17/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Survivin was initially identified as a member of the inhibitor apoptosis (IAP) protein family and has been shown to play a critical role in the regulation of apoptosis. More recent studies showed that survivin is a component of the chromosome passenger complex and acts as an essential mediator of mitotic progression. Other potential functions of survivin, such as mitochondrial function and autophagy, have also been proposed. Survivin has emerged as an attractive target for cancer therapy because its overexpression has been found in most human cancers and is frequently associated with chemotherapy resistance, recurrence, and poor survival rates in cancer patients. In this review, we discuss our current understanding of how survivin mediates various aspects of malignant transformation and drug resistance, as well as the efforts that have been made to develop therapeutics targeting survivin for the treatment of cancer.
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Affiliation(s)
- Qiang Wang
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Mark I. Greene
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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2
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Peery R, Cui Q, Kyei-Baffour K, Josephraj S, Huang C, Dong Z, Dai M, Zhang JT, Liu JY. A novel survivin dimerization inhibitor without a labile hydrazone linker induces spontaneous apoptosis and synergizes with docetaxel in prostate cancer cells. Bioorg Med Chem 2022; 65:116761. [PMID: 35504208 PMCID: PMC9148172 DOI: 10.1016/j.bmc.2022.116761] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/10/2022] [Accepted: 04/18/2022] [Indexed: 12/16/2022]
Abstract
Survivin, a member of the inhibitor of apoptosis protein family, exists as a homodimer and is aberrantly upregulated in a wide spectrum of cancers. It was thought to be an ideal target due to its lack of expression in most adult normal tissues and importance in cancer cell survival. However, it has been challenging to target survivin due to its "undruggable" nature. We previously attempted to target its dimerization domain with a hypothesis that inhibiting survivin dimerization would promote its degradation in proteasome, which led to identification of a lead small-molecule inhibitor, LQZ-7F. LQZ-7F consists of a flat tetracyclic aromatic core with labile hydrazone linking a 1,2,5-oxadiazole moiety. In this study, we tested the hypothesis that LQZ-7F could be developed as a prodrug because the labile hydrazone linker could be hydrolyzed, releasing the tetracyclic aromatic core. To this end, we synthesized the tetracyclic aromatic core (LQZ-7F1) using reported procedure and tested LQZ-7F1 for its biological activities. Here we show that LQZ-7F1 has a significantly improved potency with submicromolar IC50's and induces spontaneous apoptosis in prostate cancer cells. It also more effectively inhibits survivin dimerization and induces survivin degradation in a proteasome-dependent manner than LQZ-7F. We also show that the combination of LQZ-7F1 and docetaxel have strong synergism in inhibiting prostate cancer cell survival. Together, we conclude that the hydrazone linker with the oxadiazole tail is dispensable for survivin inhibition and the survivin dimerization inhibitor, LQZ-7F, may be developed as a prodrug for prostate cancer treatment and to overcome docetaxel resistance.
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Affiliation(s)
- Robert Peery
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Qingbin Cui
- Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Kwaku Kyei-Baffour
- Department of Chemistry, Purdue University, West Lafayette, IN, United States
| | - Sophia Josephraj
- Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Caoqinglong Huang
- Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Zizheng Dong
- Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Mingji Dai
- Department of Chemistry, Purdue University, West Lafayette, IN, United States, Corresponding authors at: Department of Chemistry, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, United States (M. Dai). Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-T. Zhang). Department of Medicine, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-Y. Liu). (M. Dai), (J.-T. Zhang), (J.-Y. Liu)
| | - Jian-Ting Zhang
- Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States, Corresponding authors at: Department of Chemistry, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, United States (M. Dai). Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-T. Zhang). Department of Medicine, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-Y. Liu). (M. Dai), (J.-T. Zhang), (J.-Y. Liu)
| | - Jing-Yuan Liu
- Department of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States, Corresponding authors at: Department of Chemistry, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, United States (M. Dai). Department of Cell and Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-T. Zhang). Department of Medicine, University of Toledo College of Medicine and Life Sciences, 3000 Arlington Ave., Toledo, OH 43614, United States (J.-Y. Liu). (M. Dai), (J.-T. Zhang), (J.-Y. Liu)
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3
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Okwundu N, Rahman H, Liu T, Florell SR, Boucher KM, Grossman D. A Randomized Double-blind Placebo-controlled Trial of Oral Aspirin for Protection of Melanocytic Nevi Against UV-induced DNA Damage. Cancer Prev Res (Phila) 2022; 15:129-138. [PMID: 34750146 PMCID: PMC8828675 DOI: 10.1158/1940-6207.capr-21-0399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 10/13/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022]
Abstract
DNA damage plays a role in ultraviolet (UV)-induced melanoma. We previously showed that aspirin (ASA) can suppress prostaglandin-E2 (PGE2) and protect melanocytes from UV-induced DNA damage in mice, and suggested that taking ASA before acute sun exposure may reduce melanoma risk. We conducted a prospective randomized placebo-controlled trial to determine if orally administered ASA could suppress PGE2 in plasma and nevi and protect nevi from UV-induced DNA damage. After obtaining plasma and determining the minimal erythemal dose (MED) in 95 subjects at increased risk for melanoma, they were randomized to receive a daily dose of placebo, 81 mg ASA, or 325 mg ASA, in double-blind fashion for one month. After this intervention, one nevus was irradiated (dose = 1 or 2 MED) using a solar simulator. One day later, MED was re-determined, a second plasma sample was obtained, and the UV-irradiated nevus and an unirradiated nevus were removed. ASA metabolites were detected in the second plasma sample in subjects in the ASA arms. There were no significant differences in the pre- and post-intervention MED between those patients receiving ASA and placebo. Significantly reduced PGE2 levels were detected in plasma (second vs. first samples) and in nevi (both unirradiated and UV-treated) in subjects receiving ASA compared to placebo. Comparing UV-treated nevi from the ASA and placebo cohorts, however, did not reveal significant reductions in CD3-cell infiltration or 8-oxoguanine and cyclobutane pyrimidine dimers. Thus ASA did not effectively protect nevi from solar-simulated UV-induced inflammation and DNA damage under the conditions examined. PREVENTION RELEVANCE: Despite promising rationale, ASA at conventional dosing was not able to protect nevi against UV-induced DNA damage under the conditions examined.See related Spotlight, p. 71.
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Affiliation(s)
- Nwanneka Okwundu
- From the Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Hafeez Rahman
- From the Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Tong Liu
- From the Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Scott R Florell
- Departments of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Kenneth M Boucher
- From the Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
- Internal Medicine, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Douglas Grossman
- From the Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah.
- Departments of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah
- Oncological Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah
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4
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Tumor Suppressor Protein p53 and Inhibitor of Apoptosis Proteins in Colorectal Cancer-A Promising Signaling Network for Therapeutic Interventions. Cancers (Basel) 2021; 13:cancers13040624. [PMID: 33557398 PMCID: PMC7916307 DOI: 10.3390/cancers13040624] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Tumor suppressor 53 (p53) is a multifunctional protein that regulates cell cycle, DNA repair, apoptosis and metabolic pathways. In colorectal cancer (CRC), mutations of the gene occur in 60% of patients and are associated with a more aggressive tumor phenotype and resistance to anti-cancer therapy. In addition, inhibitor of apoptosis (IAP) proteins are distinguished biomarkers overexpressed in CRC that impact on a diverse set of signaling pathways associated with the regulation of apoptosis/autophagy, cell migration, cell cycle and DNA damage response. As these mechanisms are further firmly controlled by p53, a transcriptional and post-translational regulation of IAPs by p53 is expected to occur in cancer cells. Here, we aim to review the molecular regulatory mechanisms between IAPs and p53 and discuss the therapeutic potential of targeting their interrelationship by multimodal treatment options. Abstract Despite recent advances in the treatment of colorectal cancer (CRC), patient’s individual response and clinical follow-up vary considerably with tumor intrinsic factors to contribute to an enhanced malignancy and therapy resistance. Among these markers, upregulation of members of the inhibitor of apoptosis protein (IAP) family effects on tumorigenesis and radiation- and chemo-resistance by multiple pathways, covering a hampered induction of apoptosis/autophagy, regulation of cell cycle progression and DNA damage response. These mechanisms are tightly controlled by the tumor suppressor p53 and thus transcriptional and post-translational regulation of IAPs by p53 is expected to occur in malignant cells. By this, cellular IAP1/2, X-linked IAP, Survivin, BRUCE and LIVIN expression/activity, as well as their intracellular localization is controlled by p53 in a direct or indirect manner via modulating a multitude of mechanisms. These cover, among others, transcriptional repression and the signal transducer and activator of transcription (STAT)3 pathway. In addition, p53 mutations contribute to deregulated IAP expression and resistance to therapy. This review aims at highlighting the mechanistic and clinical importance of IAP regulation by p53 in CRC and describing potential therapeutic strategies based on this interrelationship.
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Jing J, Xu P, Xu JL, Ding YX, Yang XS, Jin XQ, Zhou LJ, Chen YH, Wu XJ, Lu ZF. Expression and localization of Sox10 during hair follicle morphogenesis and induced hair cycle. Int J Med Sci 2021; 18:3498-3505. [PMID: 34522176 PMCID: PMC8436095 DOI: 10.7150/ijms.60728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
Sox transcription factors play many diverse roles during development, including regulating stem cell states, directing differentiation, and influencing the local chromatin landscape. Sox10 has been implicated in the control of stem/progenitor activity and epithelial-mesenchymal transition, yet it has not been studied in relation to the hair follicle cycle or hair follicle stem cell (HFSC) control. To elucidate the role of Sox10 in hair follicle cycle control, we performed immunohistochemical and immunofluorescence analysis of its expression during hair morphogenesis, the postnatal hair cycle, and the depilation-induced murine hair follicle cycle. During hair follicle morphogenesis, Sox10 was expressed in the hair germ and peg. In telogen, we detected nuclear Sox10 in the hair bulge and germ cell cap, where HFSCs reside, while in anagen and catagen, Sox10 was detected in the epithelial portion, such as the strands of keratinocytes, the outer root sheath (ORS) in anagen, and the regressed epithelial strand of hair follicle in catagen. These results suggest that Sox10 may be involved in early hair follicle morphogenesis and postnatal follicular cycling.
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Affiliation(s)
- Jing Jing
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Peng Xu
- Department of Neuro intensive Care Unit, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Jia-Li Xu
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Yu-Xin Ding
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Xiao-Shuang Yang
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Xiao-Qin Jin
- Zhejiang Chinese Medical University, Hangzhou 310000, China
| | - Li-Juan Zhou
- Department of Dermatology, Huashan Hospital Fudan University, Shanghai 200000, China
| | - Yu-Hong Chen
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Xian-Jie Wu
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
| | - Zhong-Fa Lu
- Department of Dermatology, the second affiliated hospital of Zhejiang University, Hangzhou 310000, China
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6
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Fadel F, Al-Kandari N, Khashab F, Al-Saleh F, Al-Maghrebi M. JNK inhibition alleviates oxidative DNA damage, germ cell apoptosis, and mitochondrial dysfunction in testicular ischemia reperfusion injury. Acta Biochim Biophys Sin (Shanghai) 2020; 52:891-900. [PMID: 32662511 DOI: 10.1093/abbs/gmaa074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 01/05/2023] Open
Abstract
The aim of this study is to determine whether the c-Jun N-terminal kinase (JNK) signaling is a regulator of oxidative DNA damage, germ cell apoptosis (GCA), and mitochondrial dysfunction during testicular ischemia reperfusion injury (tIRI) using the JNK inhibitor SP600125. Male Sprague Dawley rats (n = 36) were equally divided into three groups: sham, tIRI only, and tIRI + SP600125 (15 mg/kg). Testicular ischemia was induced for 1 h followed by 4 h of reperfusion prior to animal sacrifice. Spermatogenesis was evaluated by light microscopy, while expression of oxidative stress and GCA-related mRNAs and proteins were evaluated by real-time polymerase chain reaction and colorimetric assays, respectively. Expressions of JNK, p53, and survivin were detected by immunofluorescence (IF) staining. Indicators of mitochondrial dysfunction were examined by western blot analysis and colorimetric assay. In comparison to sham, the tIRI testes showed a significant increase in lipid and protein oxidation products. Oxidative DNA damage was reflected by a significant increase in the number of DNA strand breaks, increased concentration of 8-OHdG, and elevated poly (ADP-ribose) polymerase activity. Spermatogenic damage was associated with the activation of caspase 3 and elevated Bax to Bcl2 ratio. This was also accompanied by a significantly heightened IF expression of the phosphorylated forms of JNK and p53 paralled with the suppression of survivin. Mitochondrial dysfunction was reflected by NAD+ depletion, overexpression of uncoupling protein 2, and increased level of cytochrome c. Such tIRI-induced modulations were all attenuated by SP600125 treatment prior to reperfusion. In conclusion, JNK signaling regulates oxidative DNA damage, GCA, and mitochondrial dysfunction through activation of p53 and suppression of survivin during tIRI.
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Affiliation(s)
- Fatemah Fadel
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Nora Al-Kandari
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Farah Khashab
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Farah Al-Saleh
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - May Al-Maghrebi
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
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7
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Peery R, Kyei-Baffour K, Dong Z, Liu J, de Andrade Horn P, Dai M, Liu JY, Zhang JT. Synthesis and Identification of a Novel Lead Targeting Survivin Dimerization for Proteasome-Dependent Degradation. J Med Chem 2020; 63:7243-7251. [PMID: 32421328 DOI: 10.1021/acs.jmedchem.0c00475] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Survivin, a homodimeric member of the Inhibitor of Apoptosis Protein (IAP) family, is required for cancer cell survival and overexpressed in almost all solid tumors. However, targeting survivin has been challenging due to its "undruggable" nature. Recently, we used a novel approach to target the dimerization interface and identified inhibitors of two scaffolds that can directly bind to and inhibit survivin dimerization. One of the scaffolds, represented by the compound LQZ-7, contains an undesirable labile hydrazone linker and a potentially nonfunctional furazanopyrazine ring that we attempted to eliminate in this study. We found one compound, 7I, that is more active than the parent compound, LQZ-7, and when given orally effectively inhibits xenograft tumor growth and induces survivin loss in tumors. These findings indicate that 7I with a stable linker and a quinoxaline ring can be used as a lead for further optimization of this novel class of survivin inhibitors.
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Affiliation(s)
- Robert Peery
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Kwaku Kyei-Baffour
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zizheng Dong
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Jianguo Liu
- Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Pedro de Andrade Horn
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mingji Dai
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jing-Yuan Liu
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Jian-Ting Zhang
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
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Stavropoulos A, Varras M, Vasilakaki T, Varra VK, Varra FN, Tsavari A, Nonni A, Kavantzas N, Lazaris AC. Expression of anti-apoptotic protein survivin in human endometrial carcinoma: Clinical and pathological associations as a separate factor and in combination with concomitant PTEN and p53 expression. Oncol Lett 2020; 20:1033-1054. [PMID: 32724342 PMCID: PMC7377108 DOI: 10.3892/ol.2020.11690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022] Open
Abstract
Endometrial carcinoma is one of the most common types of gynecological cancer. A total of 99 cases of primary endometrial carcinoma were investigated for survivin expression by immunohistochemistry. Furthermore, the association between concomitant survivin, PTEN and p53 expression, and clinicopathological parameters was examined. Immunopositivity for survivin was identified in 88% of cases. Concomitant survivin, PTEN and p53 expression (staining scores and intensity) was observed in 60% of endometrial adenocarcinomas. A significant association was identified between the sum of staining intensity and scores of survivin immunopositive cells, and patient age (P=0.028), histological grade (P<0.001), clinical stage (P=0.018) and fallopian tube and/or ovarian invasion (P=0.039). A negative tendency for correlation was observed between surivin and PTEN immunostaining scores (P=0.062; ρ=−0.238). Specimens with high scores of survivin expression tended to show decreased scores of PTEN immunostaining, and vice versa. However, in circumstances with an increased co-expression of survivin and PTEN, a statistically significant association with histological types was observed (P=0.020). A statistically significant positive correlation was identified between survivin and p53 sum co-expression (P=0.008; ρ=0.300). Furthermore, a significant association was identified between survivin and p53 concomitant sum expression and age of patients (P=0.001), histological type (P=0.020), clinical stage (P=0.037), histological differentiation (P=0.001) and presence of fallopian tube and/or ovarian invasion (P=0.026). The present findings suggested that survivin may be an indicator of unfavorable outcome in older patients with endometrial carcinoma, in specific circumstances that are dependent on different concomitant genetic alterations and different combinations of molecular signaling pathways. Increased expression levels of survivin and PTEN may serve a role in the development of more aggressive endometrial carcinoma during their interaction. In addition, protein expression levels of survivin and p53 are positively correlated and may share a common molecular pathway to promote endometrial carcinogenesis. These findings provided evidence that survivin and p53 combined may be useful markers for the prediction of tumor behavior and prognosis.
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Affiliation(s)
- Aggelis Stavropoulos
- Forth Obstetrics and Gynecology Department, 'Elena Venizelou' General Hospital, Athens 11521, Greece
| | - Michail Varras
- Fifth Obstetrics and Gynecology Department, 'Elena Venizelou' General Hospital, Athens 11521, Greece
| | - Thivi Vasilakaki
- Department of Pathology, 'Tzaneio' General Hospital, Piraeus 18536, Greece
| | | | - Fani-Niki Varra
- Department of Pharmacy, Frederick University, Nicosia 1036, Cyprus
| | - Aikaterini Tsavari
- Department of Pathology, 'Tzaneio' General Hospital, Piraeus 18536, Greece
| | - Aphrodite Nonni
- First Pathology Department, Medical School, National Kapodistrian University, Athens 11527, Greece
| | - Nikolaos Kavantzas
- First Pathology Department, Medical School, National Kapodistrian University, Athens 11527, Greece
| | - Andreas C Lazaris
- First Pathology Department, Medical School, National Kapodistrian University, Athens 11527, Greece
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9
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Rafatmanesh A, Behjati M, Mobasseri N, Sarvizadeh M, Mazoochi T, Karimian M. The survivin molecule as a double-edged sword in cellular physiologic and pathologic conditions and its role as a potential biomarker and therapeutic target in cancer. J Cell Physiol 2019; 235:725-744. [PMID: 31250439 DOI: 10.1002/jcp.29027] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 06/11/2019] [Indexed: 12/16/2022]
Abstract
Survivin is a member of the family of apoptosis inhibitory proteins with increased expression level in most cancerous tissues. Evidence shows that survivin plays regulatory roles in proliferation or survival of normal adult cells, principally vascular endothelial cells, T lymphocytes, primitive hematopoietic cells, and polymorphonuclear neutrophils. Survivin antiapoptotic role is, directly and indirectly, related to caspase proteins and shows its role in cell division through the chromosomal passenger complex. Survivin contains many genetic polymorphisms that the role of some variations has been proven in several cancers. The -31G/C polymorphism is one of the most important survivin mutations which is located in the promoter region on a CDE/CHR motif. This polymorphism can upregulate the survivin messenger RNA. In addition, its allele C can increase the risk of cancers in 1.27-fold than allele G. Considering the fundamental role of survivin in different cancers, this protein could be considered as a new therapeutic target in cancer treatment. For this purpose, various strategies have been designed including the prevention of survivin expression through inhibition of mRNA translation using antagonistic molecules, inhibition of survivin gene function through small inhibitory molecules, gene therapy, and immunotherapy. In this study, we describe the structure, played roles in physiological and pathological states and genetic polymorphisms of survivin. Finally, the role of survivin as a potential target in cancer therapy given challenges ahead has been discussed.
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Affiliation(s)
- Atieh Rafatmanesh
- The Advocate Center for Clinical Research, Ayatollah Yasrebi Hospital, Kashan, Iran
| | - Mohaddeseh Behjati
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Narges Mobasseri
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran.,Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mostafa Sarvizadeh
- The Advocate Center for Clinical Research, Ayatollah Yasrebi Hospital, Kashan, Iran
| | - Tahereh Mazoochi
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Karimian
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran.,Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
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10
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Shakeel E, Akhtar S, Khan MKA, Lohani M, Arif JM, Siddiqui MH. Molecular docking analysis of aplysin analogs targeting survivin protein. Bioinformation 2017; 13:293-300. [PMID: 29081608 PMCID: PMC5651222 DOI: 10.6026/97320630013293] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 09/20/2017] [Accepted: 09/20/2017] [Indexed: 01/05/2023] Open
Abstract
Survivin (IAP proteins) remains an important target for anticancer drug development as it is reported to be over-expressed in tumor cells to enhance resistance to apoptotic stimuli. The study focuses on virtual screening of marine compounds inhibiting survivin, a multifunctional protein, using a computational approach. Structures of compounds were prepared using ChemDraw Ultra 10. Software and converted into its 3D PDB structure and its energy was minimized using Discovery Studio client 2.5. The target protein, survivin was retrieved from RCSB PDB. Lipinski's rule and ADMET toxicity profiling was carried out on marine compounds and the filtered compounds were further promoted for molecular docking analysis and interaction studies using AutoDock Tools 4.0. Molecular docking results revealed that analog (AP 4) of Aplysin, showed very promising inhibitory potential against survivin with a binding energy of -8.75 kcal/mol and Ki 388.28 nM as compared to its known inhibitor, Celecoxib having binding energy of -6.65 kcal/mol and Ki 13.43 μM. AP 4. The analog depicted similarity in pattern when compared to standard. The result proposes AP 4, is an effective molecule exhibiting prominent potential to inhibit survivin and thus promoting apoptosis in tumor cells.
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Affiliation(s)
- Eram Shakeel
- Advanced Centre for Bioengineering and Bioinformatics (ACBB), Integral Information and Research Centre (IIRC), Integral University, Lucknow, Uttar Pradesh, India-226026
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, Uttar Pradesh, India-226026
| | - Salman Akhtar
- Advanced Centre for Bioengineering and Bioinformatics (ACBB), Integral Information and Research Centre (IIRC), Integral University, Lucknow, Uttar Pradesh, India-226026
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, Uttar Pradesh, India-226026
| | - Mohd. Kalim Ahmad Khan
- Advanced Centre for Bioengineering and Bioinformatics (ACBB), Integral Information and Research Centre (IIRC), Integral University, Lucknow, Uttar Pradesh, India-226026
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, Uttar Pradesh, India-226026
| | - Mohtashim Lohani
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India-226026
| | - Jamal M. Arif
- Advanced Centre for Bioengineering and Bioinformatics (ACBB), Integral Information and Research Centre (IIRC), Integral University, Lucknow, Uttar Pradesh, India-226026
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India-226026
| | - Mohd. Haris Siddiqui
- Advanced Centre for Bioengineering and Bioinformatics (ACBB), Integral Information and Research Centre (IIRC), Integral University, Lucknow, Uttar Pradesh, India-226026
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, Uttar Pradesh, India-226026
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11
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Loss of p16 INK4A stimulates aberrant mitochondrial biogenesis through a CDK4/Rb-independent pathway. Oncotarget 2017; 8:55848-55862. [PMID: 28915557 PMCID: PMC5593528 DOI: 10.18632/oncotarget.19862] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/09/2017] [Indexed: 02/06/2023] Open
Abstract
The tumor suppressor p16INK4A (p16) inhibits cell cycle progression through the CDK4/Rb pathway. We have previously shown that p16 regulates cellular oxidative stress, independent of its role in cell cycle control. We investigated whether loss of p16 had a direct impact on the mitochondria. We found that p16-null primary mouse fibroblasts (PMFs) displayed increased mitochondrial mass and expression of mitochondrial respiratory subunit proteins compared to wild-type (WT) PMFs. These findings in p16-null PMFs were associated with increased expression of the mitochondrial biogenesis transcription factors PRC and TFAM. On the other hand, p16-deficient PMFs demonstrated reduced mitochondrial respiration capacity consistent with electron microscopy findings showing that mitochondria in p16-deficient PMFs have abnormal morphology. Consistent with increased mitochondrial mass and reduced respiratory capacity, p16-deficient PMFs generated increased mitochondrial superoxide. One biological consequence of elevated ROS in p16-deficient PMFs was enhanced migration, which was reduced by the ROS scavenger N-acetylcysteine. Finally, p16-deficient PMFs displayed increased mitochondrial membrane potential, which was also required for their enhanced migration. The mitochondrial and migration phenotype was restored in p16-deficient PMFs by forced expression of p16. Similarly, over-expression of p16 in human melanocytes and A375 melanoma cells led to decreased expression of some mitochondrial respiratory proteins, enhanced respiration, and decreased migration. Inhibition of Rb phosphorylation in melanocytes and melanoma cells, either by addition of chemical CDK4 inhibitors or RNAi-mediated knockdown of CDK4, did not mimic the effects of p16 loss. These results suggest that p16 regulates mitochondrial biogenesis and function, which is independent of the canonical CDK4/Rb pathway.
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12
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Peery RC, Liu JY, Zhang JT. Targeting survivin for therapeutic discovery: past, present, and future promises. Drug Discov Today 2017; 22:1466-1477. [PMID: 28577912 DOI: 10.1016/j.drudis.2017.05.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/12/2017] [Accepted: 05/23/2017] [Indexed: 12/11/2022]
Abstract
Survivin, the smallest member of the inhibitor of apoptosis protein (IAP) family, is overexpressed in cells of almost all cancers but not in most normal tissues in adults. Survivin expression is required for cancer cell survival and knocking down its expression or inhibiting its function using molecular approaches results in spontaneous apoptosis. Thus, survivin is an attractive and perhaps ideal target for cancer drug discovery. However, a US Food and Drug Administration (FDA)-approved drug targeting survivin has yet to emerge. In this Foundation Review, we examine and evaluate various strategies that have been used to target survivin and the stages of each survivin inhibitor to help understand this lack of success. We also provide future perspectives moving forward in targeting survivin for drug discovery.
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Affiliation(s)
- Robert C Peery
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jing-Yuan Liu
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Computer and Information Science, Indiana University Purdue University, Indianapolis, IN 46202, USA
| | - Jian-Ting Zhang
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
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13
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Hoel AW, Wang GJ, Simosa HF, Conte MS. Regulation of Vascular Smooth Muscle Cell Growth by Survivin. Vascular 2016; 15:344-9. [DOI: 10.2310/6670.2007.00049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The inhibitor of apoptosis protein survivin has long been of interest in the cancer literature for its role in both the regulation of cell proliferation and the inhibition of apoptosis. A growing body of literature has implicated survivin in the maladaptive pathways following vascular injury and, in particular, in the growth of vascular smooth muscle cells that comprise the hyperplastic neointimal lesions that characterize midterm vein bypass graft failure and restenosis following angioplasty and stenting. This review focuses on the emerging role of survivin in the regulation of smooth muscle cell growth and its implications for the prevention of restenosis following revascularization procedures. The expression, regulation, and function of survivin are addressed, as well as the current state of understanding regarding the effects of survivin inhibition in vitro and in vivo.
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Affiliation(s)
- Andrew W. Hoel
- *Division of Vascular Surgery, Brigham and Women's Hospital, Boston, MA; †Division of Vascular Surgery, University of Pennsylvania Medical Center, Philadelphia, PA; ‡Division of Vascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA
| | - Grace J. Wang
- *Division of Vascular Surgery, Brigham and Women's Hospital, Boston, MA; †Division of Vascular Surgery, University of Pennsylvania Medical Center, Philadelphia, PA; ‡Division of Vascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA
| | - Hector F. Simosa
- *Division of Vascular Surgery, Brigham and Women's Hospital, Boston, MA; †Division of Vascular Surgery, University of Pennsylvania Medical Center, Philadelphia, PA; ‡Division of Vascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA
| | - Michael S. Conte
- *Division of Vascular Surgery, Brigham and Women's Hospital, Boston, MA; †Division of Vascular Surgery, University of Pennsylvania Medical Center, Philadelphia, PA; ‡Division of Vascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA
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Qi J, Dong Z, Liu J, Peery RC, Zhang S, Liu JY, Zhang JT. Effective Targeting of the Survivin Dimerization Interface with Small-Molecule Inhibitors. Cancer Res 2016; 76:453-62. [PMID: 26744521 DOI: 10.1158/0008-5472.can-15-1874] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/15/2015] [Indexed: 11/16/2022]
Abstract
Many oncoproteins are considered undruggable because they lack enzymatic activities. In this study, we present a small-molecule-based anticancer agent that acts by inhibiting dimerization of the oncoprotein survivin, thereby promoting its degradation along with spontaneous apoptosis in cancer cells. Through a combination of computational analysis of the dimerization interface and in silico screening, we identified one compound that induced proteasome-dependent survivin degradation. Analysis of a set of structural analogues led us to identify a lead compound (LQZ-7F), which was effective in blocking the survival of multiple cancer cell lines in a low micromolar concentration range. LQZ-7F induced proteasome-dependent survivin degradation, mitotic arrest, and apoptosis, and it blocked the growth of human tumors in mouse xenograft assays. In addition to providing preclinical proof of concept for a survivin-targeting anticancer agent, our work offers novel in silico screening strategies to therapeutically target homodimeric oncogenic proteins considered undruggable.
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Affiliation(s)
- Jing Qi
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Zizheng Dong
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jianguo Liu
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Robert C Peery
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Shaobo Zhang
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jing-Yuan Liu
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana. Department of Computer and Information Science, Indiana University-Purdue University at Indianapolis, Indiana.
| | - Jian-Ting Zhang
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana. IU Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana.
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15
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Lee BS, Oh J, Kang SK, Park S, Lee SH, Choi D, Chung JH, Chung YW, Kang SM. Insulin Protects Cardiac Myocytes from Doxorubicin Toxicity by Sp1-Mediated Transactivation of Survivin. PLoS One 2015; 10:e0135438. [PMID: 26271039 PMCID: PMC4535909 DOI: 10.1371/journal.pone.0135438] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 07/23/2015] [Indexed: 12/15/2022] Open
Abstract
Insulin inhibits ischemia/reperfusion-induced myocardial apoptosis through the PI3K/Akt/mTOR pathway. Survivin is a key regulator of anti-apoptosis against doxorubicin-induced cardiotoxicity. Insulin increases survivin expression in cardiac myocytes to mediate cytoprotection. However, the mechanism by which survivin mediates the protective effect of insulin against doxorubicin-associated injury remains to be determined. In this study, we demonstrated that pretreatment of H9c2 cardiac myocytes with insulin resulted in a significant decrease in doxorubicin-induced apoptotic cell death by reducing cytochrome c release and caspase-3 activation. Doxorubicin-induced reduction of survivin mRNA and protein levels was also significantly perturbed by insulin pretreatment. Reducing survivin expression with survivin siRNA abrogated insulin-mediated inhibition of caspase-3 activation, suggesting that insulin signals to survivin inhibited caspase-3 activation. Interestingly, pretreatment of H9c2 cells with insulin or MG132, a proteasome inhibitor, inhibited doxorubicin-induced degradation of the transcription factor Sp1. ChIP assay showed that pretreatment with insulin inhibited doxorubicin-stimulated Sp1 dissociation from the survivin promoter. Finally using pharmacological inhibitors of the PI3K pathway, we showed that insulin-mediated activation of the PI3K/Akt/mTORC1 pathway prevented doxorubicin-induced proteasome-mediated degradation of Sp1. Taken together, insulin pretreatment confers a protective effect against doxorubicin-induced cardiotoxicity by promoting Sp1-mediated transactivation of survivin to inhibit apoptosis. Our study is the first to define a role for survivin in cellular protection by insulin against doxorubicin-associated injury and show that Sp1 is a critical factor in the transcriptional regulation of survivin.
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Affiliation(s)
- Beom Seob Lee
- Graduate Program in Science for Aging, Yonsei University, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Integrative Research Institute for Cerebral and Cardiovascular Diseases (SIRIC), Yonsei University Health System, Seoul, Republic of Korea
| | - Jaewon Oh
- Cardiology Division, Severance Cardiovascular Hospital, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung Ku Kang
- Avon Old Farms School, Avon, Connecticut, United States of America
| | - Sungha Park
- Cardiology Division, Severance Cardiovascular Hospital, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang-Hak Lee
- Cardiology Division, Severance Cardiovascular Hospital, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Donghoon Choi
- Cardiology Division, Severance Cardiovascular Hospital, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Integrative Research Institute for Cerebral and Cardiovascular Diseases (SIRIC), Yonsei University Health System, Seoul, Republic of Korea
| | - Ji Hyung Chung
- Department of Applied Bioscience, College of Life Science, CHA University, Gyeonggi-do, Republic of Korea
| | - Youn Wook Chung
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- * E-mail: (SMK); (YWC)
| | - Seok-Min Kang
- Cardiology Division, Severance Cardiovascular Hospital, Seoul, Republic of Korea
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Integrative Research Institute for Cerebral and Cardiovascular Diseases (SIRIC), Yonsei University Health System, Seoul, Republic of Korea
- * E-mail: (SMK); (YWC)
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16
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Labarrade F, Bergeron L, Serre C, Lebleu A, Busuttil V, Botto JM, Domloge N. Modulating the expression of survivin and other basal epidermal proteins protects human skin from UVB damage and oxidative stress. J Cosmet Dermatol 2015; 14:191-203. [PMID: 26177774 DOI: 10.1111/jocd.12150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The chromosomal passenger complex (CPC) is an assembly made of four interacting proteins: survivin, borealin, INCENP, and aurora kinase B. CPC is the key regulatory complex responsible for the correct development of cellular mitosis, accompanying each step of the chromosomal segregation. This control of mitosis is particularly important in undifferentiated cells that must renew themselves and also further differentiate and specialize. The epidermis is a self-renewing tissue that needs to continuously generate new cells through proliferation and differentiation of progenitor cells. Both the mitosis supervision by the CPC and a correct extracellular environment are physiologically required for the homeostasis of the adult keratinocyte stem cells (KSCs) of the epidermis. KSCs are mainly found in the basal layer of the epidermis and are responsible for the replenishment and maintenance of the tissue, by compensating for the loss of terminally differentiated cells called corneocytes, especially during aging. AIM The aim of our study was to investigate the implication of survivin in epidermal renewal and the relationships between survivin expression and UVB-induced DNA damage levels in cultured human keratinocytes and in skin biopsies. In parallel, the effects of a treatment by compound IV08.009 were studied. MATERIAL AND METHODS Cultured human keratinocytes and skin biopsies were used in this study. KSCs-enriched fractions of keratinocytes were isolated from total keratinocytes by differential attachment to a type IV collagen matrix. Survivin expression levels were assessed by immunoblotting in cultured keratinocytes, and α6-integrin, β1-integrin, keratin 15, and survivin were observed after immunodetection in skin biopsies cross sections. Comet assay, immunodetection of CPDs and of cleaved-caspase 3, and electron microscopy were used to characterize UVB-induced DNA damage. RESULTS We demonstrated the ability of compound IV08.009 to efficiently protect ex vivo skin against basal UVB-induced damage. Moreover, comet assay studies demonstrated the efficacy of IV08.009 in protecting DNA damage from UVB stress. We found that IV08.009 protects skin from apoptosis induced by oxidative stress, ex vivo. Electron microscopy confirmed the protective efficiency of IV08.009 on cell ultrastructural damage induced by UVB exposure. CONCLUSION Compound IV08.009 demonstrated to be effective in regulating survivin expression and in preserving the basal epidermis from stresses such as UVB and H2 O2 . These results suggest a protective activity of IV08.009 on the essential renewing potential of KSCs.
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Affiliation(s)
- Florian Labarrade
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Laurine Bergeron
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Catherine Serre
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Alexia Lebleu
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Valère Busuttil
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Jean-Marie Botto
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
| | - Nouha Domloge
- Vincience Global Skin Research Center, Ashland Specialties France, Sophia Antipolis, France
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Adeno-associated virus mediated gene transfer of Shepherdin inhibits gallbladder carcinoma growth in vitro and in vivo. Gene 2015; 572:87-94. [PMID: 26143116 DOI: 10.1016/j.gene.2015.06.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 06/29/2015] [Accepted: 06/30/2015] [Indexed: 01/08/2023]
Abstract
Gene therapy, a significantly crucial strategy for treatment of malignancies, has been gradually accepted in recent years. However, this therapeutic approach has being facing great challenges concerning problems which include complicated development of cancer with multiple gene control, effective target shortage, low efficiency of gene transferring and safety of the vector delivery system. Shepherdin, a novel peptidomimetic molecule designed from Lys-79 to Leu-87 of survivin, has been identified as a tumor suppressor with the function that can not only competitively interfere with the interaction between survivin and Hsp90 (heat shock protein-90) leading to the degradation of survivin to anti-tumor, but also competitively target the ATP-dependent binding pocket of Hsp90 resulting in the dysfunction of Hsp90 chaperone to cell apoptosis via a mitochondrial dependent or independent pathway. In the present study, we designed and constructed a recombinant Adeno-associated virus (rAAV) loading fusion gene NT4-TAT-6His-Shepherdin. The expression of Shepherdin in gallbladder carcinoma (GBC) cells was detected and its strong inhibitory effects against GBC growth were evaluated after AAV mediated gene transfer of Shepherdin into GBC cells and xenograft tumors. MTT assay and flow cytometric analysis demonstrated that rAAV containing Shepherdin gene could significantly inhibit the growth of GBC and this effect was closely associated with apoptosis. These results indicated that rAAV-NT4-TAT-6His-Shepherdin may be considered a novel therapeutic strategy in the gene therapy for gallbladder carcinoma.
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18
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Zhang B, Yin CP, Zhao Q, Yue SW. Upregulation of HIF-1α by hypoxia protect neuroblastoma cells from apoptosis by promoting survivin expression. Asian Pac J Cancer Prev 2015; 15:8251-7. [PMID: 25339014 DOI: 10.7314/apjcp.2014.15.19.8251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Apoptosis is one of main types of neural cell death and is reversible and is a major target of therapeutic interventions. However, detailed apoptotic cascades still need to be recognized. In present study, we determined the promotion of HIF-1α and survivin in brain samples of a mouse model of hypoxic-ischemia and in neuroblastoma SH-SY5Y cells post hypoxia treatment. Then gain-of-function and loss-of-function strategies were adopted to manipulate the HIF-1α in SH-SY5Y cells, and hypoxia-induced survivin upregulation and cell apoptosis were determined. Results demonstrated that the HIF-1α and survivin were significantly promoted in a mouse model of hypoxic-ischemia or in SH-SY5Y cells post hypoxia in vitro. Manually upregulated HIF-1α could promote the hypoxia-induced survivin upregulation and improve the hypoxia-induced SH-SY5Y cell apoptosis. On the other hand, the HIF-1α knockdown by RNAi reduced the hypoxia-induced survivin upregulation and cell apoptosis. Therefore, the present study confirmed the protective role of HIF-1α and survivin in the hypoxia-induced SH- SY5Y cell apoptosis, and the survivin upregulation by hypoxia is HIF-1α-dependent. Promotion of HIF-1α and survivin might be a valuable stragegy for therapeutic intervention for hypoxic-ischemic encephalopathy.
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Affiliation(s)
- Bo Zhang
- Department of Physical Medicine and Rehabilitation, Qi Lu Hospital, Medical School of Shandong University. Jinan, China E-mail :
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19
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Veselá B, Matalová E. Expression of apoptosis-related genes in the mouse skin during the first postnatal catagen stage, focused on localization of Bnip3L and caspase-12. Connect Tissue Res 2015; 56:326-35. [PMID: 25943459 DOI: 10.3109/03008207.2015.1040546] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hair follicles undergo repetitive stages of cell proliferation and programmed cell death. The catagen stage of physiological apoptosis is connected with dynamic changes in morphology and alterations in gene expression. However, hair follicle apoptosis must be in balance with events in surrounding tissues, such as keratinocyte cornification, to maintain complex skin homeostasis. Several pro- and anti-apoptotic molecules in the skin have been reported but mainly in pathological states. In this investigation, apoptosis-related gene expression was examined during the first catagen stage of mouse hair follicle development by PCR arrays under physiological conditions. Postnatal stages P15 and P17, representing early and late catagen stages, were evaluated relatively to stage P6, representing the hair follicle growing phase, to demonstrate dynamics of gene activation during the catagen. Several statistically significant alterations were observed at P15 and particularly at P17. Bnip3L and caspase-12 identified by the PCR arrays at both catagen stages were additionally localized using immunofluorescence and were reported in physiological hair development for the first time.
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Affiliation(s)
- Barbora Veselá
- Institute of Animal Physiology and Genetics AS CR , Brno , Czech Republic
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20
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Xiao M, Wang J, Lin Z, Lu Y, Li Z, White SW, Miller DD, Li W. Design, Synthesis and Structure-Activity Relationship Studies of Novel Survivin Inhibitors with Potent Anti-Proliferative Properties. PLoS One 2015; 10:e0129807. [PMID: 26070194 PMCID: PMC4466525 DOI: 10.1371/journal.pone.0129807] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/13/2015] [Indexed: 02/05/2023] Open
Abstract
The anti-apoptotic protein survivin is highly expressed in most human cancer cells, but has very low expression in normal differentiated cells. Thus survivin is considered as an attractive cancer drug target. Herein we report the design and synthesis of a series of novel survivin inhibitors based on the oxyquinoline scaffold from our recently identified hit compound UC-112. These new analogs were tested against a panel of cancer cell lines including one with multidrug-resistant phenotype. Eight of these new UC-112 analogs showed IC50 values in the nanomole range in anti-proliferative assays. The best three compounds among them along with UC-112 were submitted for NCI-60 cancer cell line screening. The results indicated that structural modification from UC-112 to our best compound 4g has improved activity by four folds (2.2 μM for UC-112 vs. 0.5 μM for 4g, average GI50 values over all cancer cell lines in the NCI-60 panel).Western blot analyses demonstrated the new compounds maintained high selectivity for survivin inhibition over other members in the inhibition of apoptosis protein family. When tested in an A375 human melanoma xenograft model, the most active compound 4g effectively suppressed tumor growth and strongly induced cancer cell apoptosis in tumor tissues. This novel scaffold is promising for the development of selective survivin inhibitors as potential anticancer agents.
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Affiliation(s)
- Min Xiao
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Jin Wang
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Zongtao Lin
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Yan Lu
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Zhenmei Li
- Department of Structure Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Stephen W. White
- Department of Structure Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Duane D. Miller
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Wei Li
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- * E-mail:
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Sattarinezhad E, Bordbar AK, Fani N. Piperine derivatives as potential inhibitors of Survivin: An in silico molecular docking. Comput Biol Med 2015; 63:219-27. [PMID: 26093789 DOI: 10.1016/j.compbiomed.2015.05.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 11/26/2022]
Abstract
Targeting Survivin, as an inhibitor of apoptosis and a regulator of cell division, has become a worldwide controversial issue. Piperine as a pungent alkaloid has been identified as the most potent adjuvant at enhancing the efficacy of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-based therapies in triple-negative breast cancer (TNBC) cells in vitro and in vivo, which might be mediated through inhibition of Survivin. In this work, the binding energies, inhibition constants and binding modes of a group of previously synthesized Piperine derivatives at the binding site of Survivin have been studied using molecular docking tools and the best compounds with minimum binding energies are proposed as potential drugs for the inhibition of Survivin. A comprehensive SAR analysis has been done on the results that can be used for designing new Piperine analogs with higher efficacy. Molecular docking computations also show that the studied compounds can bind to BIR domain of Survivin in the same binding site as that of Smac/DIABLO with a suitable binding energy. This binding may result in the segregation of Smac/DIABLO in the cytosol and subsequently free Smac/DIABLO molecules could be available for binding with inhibitors of apoptosis to initiate caspase mediated apoptosis.
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Affiliation(s)
| | | | - Najmeh Fani
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran
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22
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Xiao M, Li W. Recent Advances on Small-Molecule Survivin Inhibitors. Curr Med Chem 2015; 22:1136 - 1146. [PMID: 25613234 DOI: 10.2174/0929867322666150114102146] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 12/07/2014] [Accepted: 12/09/2014] [Indexed: 12/18/2022]
Abstract
Survivin, a member of the inhibitor of apoptosisproteins family, is highly expressed in most human neoplasms, but its expression is very low or undetectable in terminally differentiated normal tissues. Survivin has been shown to inhibit cancer cell apoptosis and promote cell proliferation. The overexpression of survivin closely correlates with tumor progression and drug resistance. Because of its key role in tumor formation and maintenance, survivin is considered as an ideal target for anticancer treatment. However, the development of small-molecule survivin inhibitors has been challenging due to the requirement to disrupt the protein-protein interactions. Currently only a limited number of survivin inhibitors have been developed in recent years, and most of these inhibitors reduce survivin levels by interacting with other biomolecules instead of directly interacting with survivin protein. Despite these challenges, developing potent and selective small-molecule survivin inhibitors will be important in both basic science to better understand survivin biology and in translational research to develop potentially more effective, broad-spectrum anticancer agents. In this review, the functions of survivin and its role in cancer are summarized. Recent developments, challenges, and future direction of small-molecule survivin inhibitors are also discussed in detail.
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Affiliation(s)
| | - Wei Li
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States.
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23
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Sriramoju B, Kanwar RK, Kanwar JR. Nanoformulated cell-penetrating survivin mutant and its dual actions. Int J Nanomedicine 2014; 9:3279-98. [PMID: 25045261 PMCID: PMC4099198 DOI: 10.2147/ijn.s60169] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
In this study, we investigated the differential actions of a dominant-negative survivin mutant (SurR9-C84A) against cancerous SK-N-SH neuroblastoma cell lines and differentiated SK-N-SH neurons. In both the cases, the mutant protein displayed dual actions, where its effects were cytotoxic toward cancerous cells and proliferative toward the differentiated neurons. This can be explained by the fact that tumorous (undifferentiated SK-N-SH) cells have a high endogenous survivin pool and upon treatment with mutant SuR9-C84A causes forceful survivin expression. These events significantly lowered the microtubule dynamics and stability, eventually leading to apoptosis. In the case of differentiated SK-N-SH neurons that express negligible levels of wild-type survivin, the mutant indistinguishably behaved in a wild-type fashion. It also favored cell-cycle progression, forming the chromosome-passenger complex, and stabilized the microtubule-organizing center. Therefore, mutant SurR9-C84A represents a novel therapeutic with its dual actions (cytotoxic toward tumor cells and protective and proliferative toward neuronal cells), and hence finds potential applications against a variety of neurological disorders. In this study, we also developed a novel poly(lactic-co-glycolic acid) nanoparticulate formulation to surmount the hurdles associated with the delivery of SurR9-C84A, thus enhancing its effective therapeutic outcome.
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Affiliation(s)
- Bhasker Sriramoju
- Nanomedicine Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine, Faculty of Health, Deakin University, Geelong, Australia
| | - Rupinder K Kanwar
- Nanomedicine Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine, Faculty of Health, Deakin University, Geelong, Australia
| | - Jagat R Kanwar
- Nanomedicine Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine, Faculty of Health, Deakin University, Geelong, Australia
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Wiedemuth R, Klink B, Töpfer K, Schröck E, Schackert G, Tatsuka M, Temme A. Survivin safeguards chromosome numbers and protects from aneuploidy independently from p53. Mol Cancer 2014; 13:107. [PMID: 24886358 PMCID: PMC4041913 DOI: 10.1186/1476-4598-13-107] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 05/02/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Survivin, a member of the inhibitor of apoptosis (IAP) gene family, has a dual role in mitosis and in apoptosis. It is abundantly expressed in every human tumor, compared with normal tissues. During mitosis Survivin assembles with the chromosomal passenger complex and regulates chromosomal segregation. Here, we aim to explore whether interference with the mitotic function of Survivin is linked to p53-mediated G1 cell cycle arrest and affects chromosomal stability. METHODS In this study, we used HCT116, SBC-2, and U87-MG and generated corresponding isogenic p53-deficient cells. Retroviral vectors were used to stably knockdown Survivin. The resulting phenotype, in particular the mechanisms of cell cycle arrest and of initiation of aneuploidy, were investigated by Western Blot analysis, confocal laser scan microscopy, proliferation assays, spectral karyotyping and RNAi. RESULTS In all cell lines Survivin-RNAi did not induce instant apoptosis but caused polyplodization irrespective of p53 status. Strikingly, polyploidization after knockdown of Survivin resulted in merotelic kinetochore spindle assemblies, γH2AX-foci, and DNA damage response (DDR), which was accompanied by a transient p53-mediated G1-arrest. That p53 wild type cells specifically arrest due to DNA damage was shown by simultaneous inhibition of ATM and DNA-PK, which abolished induction of p21waf/cip. Cytogenetic analysis revealed chromosomal aberrations indicative for DNA double strand break repair by the mechanism of non-homologous end joining (NHEJ), only in Survivin-depleted cells. CONCLUSION Our findings suggest that Survivin plays an essential role in proper amphitelic kinetochore-spindle assembly and that constraining Survivin's mitotic function results in polyploidy and aneuploidy which cannot be controlled by p53. Therefore, Survivin critically safeguards chromosomal stability independently from p53.
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Affiliation(s)
| | | | | | | | | | | | - Achim Temme
- Department of Neurosurgery, Section Experimental Neurosurgery/Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstr, 74, 01307 Dresden, Germany.
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Survivin as a preferential target for cancer therapy. Int J Mol Sci 2014; 15:2494-516. [PMID: 24531137 PMCID: PMC3958864 DOI: 10.3390/ijms15022494] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 01/31/2014] [Accepted: 02/07/2014] [Indexed: 11/16/2022] Open
Abstract
Cancer is typically a consequence of imbalance between cell death and proliferation in a way favorable to cell proliferation and survival. Most conventional cancer therapies are based on targeting rapidly growing cancerous cells to block growth or enhance cell death, thereby, restoring the balance between these processes. In many instances, malignancies that develop resistance to current treatment modalities, such as chemotherapy, immunotherapy, and radiotherapy often present the greatest challenge in subsequent management of the patient. Studies have shown that under normal circumstances, cells utilize different death mechanisms, such as apoptosis (programmed cell death), autophagy, mitotic catastrophe, and necrosis to maintain homeostasis and physiological integrity of the organism, but these processes often appear to be altered in cancer. Thus, in recent years developing various strategies for administration of cytotoxic chemotherapeutics in combination with apoptosis-sensitizing reagents is receiving more emphasis. Here, we review the properties of the anti-apoptotic protein, survivin, a member of the inhibitor of apoptosis protein (IAP) family and the clinical feasibility and anti-cancer potential of drugs targeting this protein. We also discuss some key points and concerns that should be taken into consideration while developing drugs that target apoptotic proteins, such as survivin.
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Epigonal conditioned media from bonnethead shark, Sphyrna tiburo, induces apoptosis in a T-cell leukemia cell line, Jurkat E6-1. Mar Drugs 2013; 11:3224-57. [PMID: 24065163 PMCID: PMC3806469 DOI: 10.3390/md11093224] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 08/12/2013] [Accepted: 08/20/2013] [Indexed: 12/17/2022] Open
Abstract
Representatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for an adaptive immune system, the immune regulatory compounds they possess may represent the earliest evolutionary forms of novel compounds with the potential for innovative therapeutic applications. Conditioned medium, generated from short term culture of cells from the epigonal organ of bonnethead sharks (Sphyrna tiburo), has been shown to have potent reproducible cytotoxic activity against a variety of human tumor cell lines in vitro. Existing data suggest that epigonal conditioned medium (ECM) exerts this cytotoxic activity through induction of apoptosis in target cells. This manuscript describes apoptosis induction in a representative tumor cell line, Jurkat E6-1, in response to treatment with ECM at concentrations of 1 and 2 mg/mL. Data indicate that ECM exposure initiates the mitochondrial pathway of apoptosis through activation of caspase enzymes. Future purification of ECM components may result in the isolation of an immune-regulatory compound with potential therapeutic benefit for treatment of human cancer.
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Nogueira-Ferreira R, Vitorino R, Ferreira-Pinto MJ, Ferreira R, Henriques-Coelho T. Exploring the role of post-translational modifications on protein-protein interactions with survivin. Arch Biochem Biophys 2013; 538:64-70. [PMID: 23938875 DOI: 10.1016/j.abb.2013.07.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/17/2013] [Accepted: 07/25/2013] [Indexed: 12/31/2022]
Abstract
Survivin is a member of the inhibitor of apoptosis protein (IAP) family with crucial roles in apoptosis and cell cycle regulation. Post-translational modifications (PTMs) have a ubiquitous role in the regulation of a diverse range of proteins' cellular functions and survivin is not an exception. Phosphorylation, acetylation and ubiquitination seem to regulate survivin anti-apoptotic and mitotic roles and also its nuclear localization. In the present review we explore the role of PTMs on protein-protein interactions focused on survivin to provide new insights into the functions and cell localization of this IAP in pathophysiological conditions, which might help the envisioning of novel targeted therapies for diseases characterized by impaired survivin activity. Protein-protein interaction analysis was performed with bioinformatics tools based on published data aiming to give an integrated perspective of this IAP's role in the cell.
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Affiliation(s)
- Rita Nogueira-Ferreira
- QOPNA, Department of Chemistry, University of Aveiro, Aveiro, Portugal; Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Porto, Portugal
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28
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Lei F, Song J, Haque R, Xiong X, Fang D, Wu Y, Lens SMA, Croft M, Song J. Transgenic expression of survivin compensates for OX40-deficiency in driving Th2 development and allergic inflammation. Eur J Immunol 2013; 43:1914-24. [PMID: 23616302 DOI: 10.1002/eji.201243081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 03/28/2013] [Accepted: 04/19/2013] [Indexed: 12/12/2022]
Abstract
Survivin, an inhibitor of apoptosis family molecule, has been proposed as a crucial intermediate in the signaling pathways leading to T-cell development, proliferation, and expansion. However, the importance of survivin to T-cell-driven inflammatory responses has not been demonstrated. Here, we show that survivin transgenic mice exhibit an increased antigen-driven Th2 lung inflammation and that constitutive expression of survivin reversed the defective lung inflammation even in the absence of OX40 costimulation. We found that OX40-deficient mice were compromised in generating Th2 cells, airway eosinophilia, and IgE responses. In contrast, OX40-deficient/survivin transgenic mice generated normal Th2 responses and exhibited strong lung inflammation. These results suggest that OX40 costimulation crucially engages survivin during antigen-mediated Th2 responses. These findings also promote the notion that OX40 costimulation regulates allergic responses or lung inflammation by targeting survivin thereby enhancing T-cell proliferation and resulting in more differentiated Th2 cells in the allergic inflammatory response.
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Affiliation(s)
- Fengyang Lei
- Department of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
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29
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Chang HL, Chen CY, Hsu YF, Kuo WS, Ou G, Chiu PT, Huang YH, Hsu MJ. Simvastatin induced HCT116 colorectal cancer cell apoptosis through p38MAPK-p53-survivin signaling cascade. Biochim Biophys Acta Gen Subj 2013; 1830:4053-64. [PMID: 23583370 DOI: 10.1016/j.bbagen.2013.04.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 04/02/2013] [Accepted: 04/04/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Statins, the 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors with cholesterol-lowering properties, were recently shown to exhibit anti-cancer effects. However, the molecular mechanism underlying statin-induced cancer cell death remains to be elucidated. Elevated level of survivin is often found over-expressed in human cancers and has been implicated in the progression of tumorigenesis. Given its central role in cell division and action as an apoptosis suppressor, survivin represents a potential molecular target in cancer management. METHODS In this study, we explored the underlying mechanisms in simvastatin-induced HCT116 colorectal cancer cell apoptosis. RESULTS Simvastatin decreased cell viability and induced cell apoptosis in HCT116 cells. These results are associated with the modulation of p21(cip/Waf1) and survivin. Survivin knockdown using survivin siRNAs also decreased cell viability and induced cell apoptosis. Simvastatin's actions on p21(cip/Waf1), survivin and apoptosis were reduced in p53 null HCT116 cells. Simvastatin caused an increase in p53 phosphorylation and acetylation. In addition, simvastatin activated p38 mitogen-activated protein kinase (p38MAPK), whereas an inhibitor of p38MAPK signaling abrogated simvastatin's effects of increasing p53 and p21(cip/Waf1) promoter luciferase activity. Cell viability and survivin promoter luciferase activity in the presence of simvastatin were also restored by p38MAPK inhibitor. Furthermore, Sp1 binding to the survivin promoter region decreased while p53 and p63 binding to the promoter region increased after simvastatin exposure. CONCLUSIONS Simvastatin activates the p38MAPK-p53-survivin cascade to cause HCT116 colorectal cancer cell apoptosis. GENERAL SIGNIFICANCE This study delineates, in part, the underlying mechanisms of simvastatin in decreasing survivin and subsequent colorectal cancer cell apoptosis.
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Zhang H, Xu F, Xie T, Jin H, Shi L. β-elemene induces glioma cell apoptosis by downregulating survivin and its interaction with hepatitis B X-interacting protein. Oncol Rep 2012; 28:2083-90. [PMID: 22965456 DOI: 10.3892/or.2012.2022] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 08/17/2012] [Indexed: 11/06/2022] Open
Abstract
β-elemene, extracted from the ginger plant, possesses antitumor activity against a broad range of cancers clinically. However, the mechanism underlying β-elemene-induced cytotoxicity remains incompletely understood. Here, we show that β-elemene promoted apoptotic cell death in human glioma cells, downregulated survivin gene expression, and induced caspase-9, -3 and -7 activities. Induction of apoptosis was associated with inhibition of survivin gene expression, and restoration of survivin levels remarkably attenuated β-elemene-induced glioma cell death. Moreover, we found that the interaction between surviving and HBXIP, a critical regulator of caspase-9 activity, was impaired by β-elemene treatment. The results, therefore, reveal a caspase-mediated apoptotic pathway induced by β-elemene in human glioma cells, which is associated with downregulation of survivin itself and the interaction between survivin and HBXP.
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Affiliation(s)
- Hang Zhang
- Department of Basic Medical Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
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Li WX, Chen SF, Chen LP, Yang GY, Li JT, Liu HZ, Zhu W. Thimerosal-induced apoptosis in mouse C2C12 myoblast cells occurs through suppression of the PI3K/Akt/survivin pathway. PLoS One 2012; 7:e49064. [PMID: 23145070 PMCID: PMC3492179 DOI: 10.1371/journal.pone.0049064] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 10/09/2012] [Indexed: 12/04/2022] Open
Abstract
Background Thimerosal, a mercury-containing preservative, is one of the most widely used preservatives and found in a variety of biological products. Concerns over its possible toxicity have reemerged recently due to its use in vaccines. Thimerosal has also been reported to be markedly cytotoxic to neural tissue. However, little is known regarding thimerosal-induced toxicity in muscle tissue. Therefore, we investigated the cytotoxic effect of thimerosal and its possible mechanisms on mouse C2C12 myoblast cells. Methodology/Principal Findings The study showed that C2C12 myoblast cells underwent inhibition of proliferation and apoptosis after exposure to thimerosal (125–500 nM) for 24, 48 and 72 h. Thimerosal caused S phase arrest and induced apoptosis as assessed by flow cytometric analysis, Hoechst staining and immunoblotting. The data revealed that thimerosal could trigger the leakage of cytochrome c from mitochondria, followed by cleavage of caspase-9 and caspase-3, and that an inhibitor of caspase could suppress thimerosal-induced apoptosis. Thimerosal inhibited the phosphorylation of Aktser473 and survivin expression. Wortmannin, a PI3K inhibitor, inhibited Akt activity and decreased survivin expression, resulting in increased thimerosal-induced apoptosis in C2C12 cells, while the activation of PI3K/Akt pathway by mIGF-I (50 ng/ml) increased the expression of survivin and attenuated apoptosis. Furthermore, the inhibition of survivin expression by siRNA enhanced thimerosal-induced cell apoptosis, while overexpression of survivin prevented thimerosal-induced apoptosis. Taken together, the data show that the PI3K/Akt/survivin pathway plays an important role in the thimerosal-induced apoptosis in C2C12 cells. Conclusions/Significance Our results suggest that in C2C12 myoblast cells, thimerosal induces S phase arrest and finally causes apoptosis via inhibition of PI3K/Akt/survivin signaling followed by activation of the mitochondrial apoptotic pathway.
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Affiliation(s)
- Wen-Xue Li
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Si-Fan Chen
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Li-Ping Chen
- Faculty of Toxicology, School of Public Health, Sun Yet-sen University, Guangzhou, China
| | - Guang-Yu Yang
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Jun-Tao Li
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Hua-Zhang Liu
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
- * E-mail:
| | - Wei Zhu
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
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Syed F, Bayat A. Superior effect of combination vs. single steroid therapy in keloid disease: A comparative in vitro analysis of glucocorticoids. Wound Repair Regen 2012; 21:88-102. [DOI: 10.1111/j.1524-475x.2012.00862.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 08/20/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Farhatullah Syed
- Plastic & Reconstructive Surgery Research; Manchester Institute of Biotechnology; University of Manchester; Manchester United Kingdom
| | - Ardeshir Bayat
- Plastic & Reconstructive Surgery Research; Manchester Institute of Biotechnology; University of Manchester; Manchester United Kingdom
- Department of Plastic and Reconstructive Surgery; University Hospital South Manchester NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
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Wenying Z, Zhaoning J, Zhimin Y, Dongyun C, Lili S. Survivin siRNA inhibits gastric cancer in nude mice. Cell Biochem Biophys 2012; 62:337-41. [PMID: 22052003 DOI: 10.1007/s12013-011-9315-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The objective of the study was to evaluate the expression of survivin, cell proliferation, and apoptosis in survivin-specific siRNA-transfected human gastric cancer cell line MGC-803. For this purpose, the target gene fragments were cloned into pSilencer3.1-Hl neo vector. Recombinant eukaryotic expression vector, pSilencer3.1-SVV was successfully constructed and then the recombinant vector was transfected into gastric cancer MGC-803 cells. The mRNA expression of survivin was determined by reverse-transcriptase polymerase chain reaction (RT-PCR). Survivin protein expression was detected by Western blot. Cell cycle distribution and apoptosis were determined by flow cytometry. Our data regarding RT-PCR and Western blot showed that pSilencer3.1-SVV vector could knockdown the expression of survivin mRNA and protein. In contrast with the control group, the apoptotic index of MGC-803 cells increased remarkably. Survivin-specific siRNA caused cells accumulation in the G2/M phase and the number of cells in the G0/G1 phase decreased after transfection. It was, therefore, concluded that the siRNA targeting survivin gene could inhibit the proliferation of gastric cancer cells and induce apoptosis. The use of survivin siRNA may provide a novel approach for gene therapy of gastric cancer.
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Affiliation(s)
- Zhao Wenying
- Department of Medical Oncology, Yijishan Hospital Wannan Medical College, Anhui Wuhu 241000, China.
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Liman N, Alan E, Bayram GK, Gürbulak K. Expression of Survivin, Bcl-2 and Bax Proteins in the Domestic Cat (Felis catus) Endometrium During the Oestrus Cycle. Reprod Domest Anim 2012; 48:33-45. [DOI: 10.1111/j.1439-0531.2012.02021.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nys K, Maes H, Andrei G, Snoeck R, Garmyn M, Agostinis P. Skin mild hypoxia enhances killing of UVB-damaged keratinocytes through reactive oxygen species-mediated apoptosis requiring Noxa and Bim. Free Radic Biol Med 2012; 52:1111-20. [PMID: 22245094 DOI: 10.1016/j.freeradbiomed.2011.12.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/03/2011] [Accepted: 12/21/2011] [Indexed: 12/24/2022]
Abstract
The naturally occurring skin hypoxia has emerged as a crucial host factor of the epidermal microenvironment. We wanted to systematically investigate how reduced oxygen availability of the epidermis modulates the response of keratinocytes and melanocytes to noxious ultraviolet B radiation (UVB). We report that the exposure of normal human keratinocytes (NHKs) or melanocytes (NHEMs) to mild hypoxia drastically impacts cell death responses following UVB irradiation. The hypoxic microenvironment favors survival and reduces apoptosis of UVB-irradiated NHEMs and their malignant counterparts (melanoma cells). In contrast, NHKs, but not the transformed keratinocytes, under hypoxic conditions display increased levels of reactive oxygen species (ROS) and are significantly sensitized to UVB-mediated apoptosis as compared to NHKs treated under normoxic conditions. Prolonged exposure of UVB-treated NHKs to hypoxia triggers a sustained and reactive oxygen species-dependent activation of the stress kinases p38(MAPK) and JNKs, which in turn, engage the activation of Noxa and Bim proapoptotic proteins. Combined silencing of Noxa and Bim significantly inhibits UVB-mediated apoptosis under hypoxic conditions, demonstrating that hypoxia results in an amplification of the intrinsic apoptotic pathway. Physiologically occurring skin hypoxia, by facilitating the specific removal of UVB-damaged keratinocytes, may represent a decisive host factor impeding important steps of the photocarcinogenesis process.
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Affiliation(s)
- Kris Nys
- Department Molecular and Cell Biology, Faculty of Medicine, Catholic University of Leuven, Belgium
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Nys K, Agostinis P. Bcl-2 family members: essential players in skin cancer. Cancer Lett 2012; 320:1-13. [PMID: 22281242 DOI: 10.1016/j.canlet.2012.01.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 01/17/2012] [Accepted: 01/18/2012] [Indexed: 12/11/2022]
Abstract
Skin cancer has reached epidemic proportions and is considered to be a direct consequence of ultraviolet (UV) radiation exposure. Excessive exposure of epidermal cells to UV results in apoptosis of irreparably damaged cells to avoid malignant transformation. The Bcl-2 family of proteins is emerging as a crucial regulator of epidermal homeostasis and cell's fate in the stressed skin. Not surprisingly, deregulation of Bcl-2 family members is also chiefly involved in skin carcinogenesis and response to cancer therapy. Here we discuss the physiopathological role of epidermal Bcl-2 family members, their implications in skin carcinogenesis and as potential targets in cancer therapy.
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Affiliation(s)
- Kris Nys
- Cell Death Research & Therapy Unit, Department for Molecular Cell Biology, Catholic University of Leuven, Leuven, Belgium
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Trichostatin A and sirtinol suppressed survivin expression through AMPK and p38MAPK in HT29 colon cancer cells. Biochim Biophys Acta Gen Subj 2011; 1820:104-15. [PMID: 22155142 DOI: 10.1016/j.bbagen.2011.11.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 11/04/2011] [Accepted: 11/21/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND Elevated levels of survivin and histone deacetylases (HDACs) are often found over-expressed in human cancers, including colorectal cancer, and have been implicated in tumorigenesis. HDAC inhibition induces growth arrest and cell death in various transformed cell; however, the mechanisms by which this reduces cell viability in colorectal cancer cells remain unexplained. METHODS We explored the actions of two HDAC inhibitors, trichostatin A (TSA) and sirtinol, in HT29 colon cancer cells. RESULTS TSA and sirtinol induced apoptosis and inhibited cell proliferation in HT29 cells. These results are associated with the modulation of survivin. Survivin promoter luciferase activity and Sp1, a transcription factor that contributes to survivin expression, were suppressed in cells exposed to TSA or sirtinol. TSA and sirtinol also activated p38 mitogen-activated protein kinase (p38MAPK) and AMP-activated protein kinase (AMPK). Inhibitors of p38MAPK or AMPK signaling abrogated TSA and sirtinol's effects of decreasing cell viability. Survivin promoter luciferase activity in the presence of TSA or sirtinol was restored by AMPK dominant negative mutant or p38MAPK inhibitor. Furthermore, Sp1 binding to the survivin promoter region decreased while p63 binding to the promoter region increased after TSA or sirtinol exposure. CONCLUSIONS We report a p38MAPK- and AMPK-mediated downregulation of survivin, and its functional correlation with decreased colon cancer cell viability in the presence of HDAC inhibitor. p63 and Sp1 may also contribute to TSA and sirtinol actions. GENERAL SIGNIFICANCE This study delineates, in part, the underlying mechanisms of TSA and sirtinol in decreasing survivin expression and subsequent colon cancer cell viability.
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Dallaglio K, Marconi A, Pincelli C. Survivin: a dual player in healthy and diseased skin. J Invest Dermatol 2011; 132:18-27. [PMID: 21900948 DOI: 10.1038/jid.2011.279] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Survivin belongs to the inhibitor of apoptosis (IAP) protein family, and, in addition to the antiapoptotic functions, it also regulates the cell cycle. The survivin gene generates five major isoforms with diverse and opposite functions. Survivin is highly expressed in cancer and in few normal adult tissues, including skin. It is mostly detected in the nucleus of keratinocyte stem cells (KSCs), but it is also expressed in melanocytes and fibroblasts. Survivin isoforms are differentially detected in subpopulations of human keratinocytes, exerting contrasting activities. Survivin has an important role in the regulation of cell cycle in keratinocytes, and it protects these cells from anoikis and UV-induced apoptosis. In melanoma, survivin is abundantly expressed, and its subcellular localization varies depending upon tumor thickness and invasiveness. Survivin overexpression has been shown in squamous cell carcinoma (SCC), and it is also involved in UVB-induced carcinogenesis. The presence of survivin both in the nucleus and in the cytoplasm throughout the epidermal layers of psoriatic lesions suggests the involvement of this protein in the keratinocyte alterations typical of this disease. Additional studies on the expression of survivin isoforms and their subcellular localization in relation to function will confirm the key role of survivin in the skin and will open the field to new therapeutic strategies for many cutaneous conditions.
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Affiliation(s)
- Katiuscia Dallaglio
- Institute of Dermatology, School of Biosciences and Biotechnologies, University of Modena and Reggio Emilia, Modena, Italy
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The apoptosis inhibitor survivin prevents insect midgut from cell death during postembryonic development. Mol Biol Rep 2011; 39:1691-9. [PMID: 21633890 DOI: 10.1007/s11033-011-0909-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 05/18/2011] [Indexed: 10/18/2022]
Abstract
The programmed cell death (PCD) is important in maintaining the cell number homoeostasis of tissues and organs in metazoan. This process is regulated by the inhibitors of apoptosis proteins (IAPs). The function and mechanism of IAPs have been well studied in animal embryonic development and human cancers. However, the roles and hormonal regulation of IAPs in the postembryonic development are not well understood. We report that an IAP survivin (Ha-survivin) played roles in the postembryonic development of the midgut in a lepidopteran insect Helicoverpa armigera. Ha-survivin was transcribed not only in the embryo, but also in the haemocytes, fat body and midgut during larval molting or pupal adulting. The transcription of Ha-survivin was upregulated by the steroid hormone 20-hydroxyecdysone (20E). Ha-survivin was located in the embryonic cells around the periplasm of the eggs during embryonic development. It was also located in the epithelium cells of the midgut in the fifth molting larvae and later pupae. Knockdown of Ha-survivin by RNAi in the epidermal cell line caused cell apoptosis. These results indicated that Ha-survivin played roles not only in the embryonic development, but also in the postembryonic tissue development by preventing cell death.
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Chen CF, Chu CY, Chen TH, Lee SJ, Shen CN, Hsiao CD. Establishment of a transgenic zebrafish line for superficial skin ablation and functional validation of apoptosis modulators in vivo. PLoS One 2011; 6:e20654. [PMID: 21655190 PMCID: PMC3105106 DOI: 10.1371/journal.pone.0020654] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 05/09/2011] [Indexed: 01/31/2023] Open
Abstract
Background Zebrafish skin is composed of enveloping and basal layers which form a first-line defense system against pathogens. Zebrafish epidermis contains ionocytes and mucous cells that aid secretion of acid/ions or mucous through skin. Previous studies demonstrated that fish skin is extremely sensitive to external stimuli. However, little is known about the molecular mechanisms that modulate skin cell apoptosis in zebrafish. Methodology/Principal Findings This study aimed to create a platform to conduct conditional skin ablation and determine if it is possible to attenuate apoptotic stimuli by overexpressing potential apoptosis modulating genes in the skin of live animals. A transgenic zebrafish line of Tg(krt4:NTR-hKikGR)cy17 (killer line), which can conditionally trigger apoptosis in superficial skin cells, was first established. When the killer line was incubated with the prodrug metrodinazole, the superficial skin displayed extensive apoptosis as judged by detection of massive TUNEL- and active caspase 3-positive signals. Great reductions in NTR-hKikGR+ fluorescent signals accompanied epidermal cell apoptosis. This indicated that NTR-hKikGR+ signal fluorescence can be utilized to evaluate apoptotic events in vivo. After removal of metrodinazole, the skin integrity progressively recovered and NTR-hKikGR+ fluorescent signals gradually restored. In contrast, either crossing the killer line with testing lines or transiently injecting the killer line with testing vectors that expressed human constitutive active Akt1, mouse constitutive active Stat3, or HPV16 E6 element displayed apoptosis-resistant phenotypes to cytotoxic metrodinazole as judged by the loss of reduction in NTR-hKikGR+ fluorescent signaling. Conclusion/Significance The killer/testing line binary system established in the current study demonstrates a nitroreductase/metrodinazole system that can be utilized to conditionally perform skin ablation in a real-time manner, and provides a valuable tool to visualize and quantify the anti-apoptotic potential of interesting target genes in vivo. The current work identifies a potential use for transgenic zebrafish as a high-throughput platform to validate potential apoptosis modulators in vivo.
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Affiliation(s)
- Chi-Fang Chen
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Che-Yu Chu
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Te-Hao Chen
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
| | - Shyh-Jye Lee
- Institute of Zoology, National Taiwan University, Taipei, Taiwan
| | - Chia-Ning Shen
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
- Genome Research Center, Academia Sinica, NanKang, Taipei, Taiwan
- * E-mail: (C-NS); (C-DH)
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
- Center for Nanotechnology, Chung Yuan Christian University, Chung-Li, Taiwan
- * E-mail: (C-NS); (C-DH)
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p53 in trichostatin A induced C6 glioma cell death. Biochim Biophys Acta Gen Subj 2011; 1810:504-13. [PMID: 21376104 DOI: 10.1016/j.bbagen.2011.02.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 01/21/2011] [Accepted: 02/23/2011] [Indexed: 12/27/2022]
Abstract
BACKGROUND Histone deacetylase (HDAC) inhibitors were demonstrated to induce cell cycle arrest, promote cell differentiation or apoptosis, and inhibit metastasis. HDAC inhibitors have thus emerged as a new class of anti-tumor agents for various types of tumors. However, the mechanisms by which HDAC inhibition-induced cell death remain to be fully defined. METHODS In the present study, we explored the apoptotic actions of trichostatin A (TSA), a HDAC inhibitor, in C6 glioma cells. RESULTS TSA activated p38 mitogen-activated protein kinase (p38MAPK), leading to p53 phosphorylation and activation. P53, a proapoptotic transcription factor, in turn transactivated the expression of a proapoptotic protein, Bax. In addition, survivin, a member of inhibitor of apoptotic protein, was significantly decreased in TSA-treated C6 cells. P53 recruited to the endogenous survivin promoter region was increased and accompanied by decreasing recruitment of SP1 in response to TSA. TSA was also shown to induce IKK dephosphorylation and to suppress NF-κB reporter activity. CONCLUSIONS TSA may cause C6 cell apoptosis through activating p38MAPK-p53 cascade resulting in Bax expression and survivin suppression. Negative regulation of IKK-NF-κB signaling may also lead to p53 activation and contribute to TSA apoptotic actions. GENERAL SIGNIFICANCE TSA-induced p53 activation may occur through p53 modification by phosphorylation or by acetylation via IKK inactivation. The present study delineates, in part, the signaling pathways involved in TSA-induced glioma cell death.
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Nys K, Maes H, Dudek AM, Agostinis P. Uncovering the role of hypoxia inducible factor-1α in skin carcinogenesis. Biochim Biophys Acta Rev Cancer 2011; 1816:1-12. [PMID: 21338656 DOI: 10.1016/j.bbcan.2011.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/08/2011] [Accepted: 02/11/2011] [Indexed: 01/02/2023]
Abstract
The hypoxia inducible factor-1α (HIF-1α) is a pleiotropic transcription factor typically activated in response to low oxygen tension as well as other stress factors in normoxic conditions. Upon activation HIF-1α mediates the transcriptional activation of target genes involved in a variety of processes comprising stress adaptation, metabolism, growth and invasion, but also apoptotic cell death. The molecular mechanisms, signaling pathways and downstream targets evoked by the activation of HIF-1α in epidermal cells are becoming increasingly understood and underscore the participation of HIF-1α in crucial processes including malignant transformation and cancer progression. Recent studies have implicated HIF-1α as an integral part of the multifaceted signal transduction initiated by the exposure of keratinocytes to ultraviolet radiation B (UVB), which represents the most ubiquitous hazard for human skin and the principal risk factor for skin cancer. HIF-1α activation by UVB exposure contributes to either repair or the removal of UVB-damaged keratinocytes by inducing apoptosis, thus revealing a tumor suppressor role for HIF-1α in these cells. On the other hand, the constitutive expression of HIF-1α evoked by the mild hypoxic state of the skin has been implicated as a positive factor in the transformation of normal melanocytes into malignant melanoma, one of the most aggressive types of human cancers. Here we review the uncovered and complex role of HIF-1α in skin carcinogenesis.
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Affiliation(s)
- Kris Nys
- Cell Death Research & Therapy Laboratory, Department Molecular and Cell Biology, Faculty of Medicine, Catholic University of Leuven, Herestroat 49, box 901, B-3000, Belgium
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Abstract
Survivin, the smallest member of the inhibitors of apoptosis proteins (IAPs), plays an important role in the control of apoptosis, cell division, and cell migration/metastasis. Survivin is expressed and required for normal fetal development but is then generally no longer present in most adult tissues. However, reexpression of survivin is observed in numerous human cancers where presence of the protein is associated with enhanced proliferation, metastasis, poor prognosis, and decreased patient survival. Given the relatively selective expression in cancer cells, but not in normal tissue (tumor-associated antigen), and its importance in tumor cell biology, survivin has emerged as an attractive target for cancer treatment. Here, we discuss some aspects of survivin biology by focusing on why the protein appears to be so important for cancer cells and then discuss strategies that harness this dependence to eradicate tumors and situate survivin as a potential Achilles' heel of cancer.
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Affiliation(s)
- Alvaro Lladser
- Laboratory of Gene Immunotherapy, Fundacion Ciencia para la Vida, Santiago, Chile
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Abstract
Survivin is an inhibitor of apoptosis protein family member that has an essential role in cellular proliferation as a component of the chromosome passenger complex. Survivin is highly expressed in embryos and in proliferating adult tissues, but it is not expressed in most differentiated cells. During tumorigenesis, however, survivin expression is dramatically upregulated. Although many studies have shown that survivin is required for cancer cells, the extent to which survivin contributes to the initiation of tumors is unknown. Here we show that transgenic mice that overexpress survivin in hematopoietic cells are at an increased risk of hematologic tumors. In examining how survivin might contribute to tumorigenesis, we observed that hematopoietic cells engineered to overexpress survivin are less susceptible to apoptosis. We conclude that survivin may promote tumorigenesis by imparting a survival advantage to cells that acquire additional genetic lesions.
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Rorke EA, Adhikary G, Jans R, Crish JF, Eckert RL. AP1 factor inactivation in the suprabasal epidermis causes increased epidermal hyperproliferation and hyperkeratosis but reduced carcinogen-dependent tumor formation. Oncogene 2010; 29:5873-82. [PMID: 20818430 PMCID: PMC2974027 DOI: 10.1038/onc.2010.315] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Activator protein one (AP1) (jun/fos) factors comprise a family of transcriptional regulators (c-jun, junB, junD, c-fos, FosB, Fra-1 and Fra-2) that are key controllers of epidermal keratinocyte survival and differentiation, and are important drivers of cancer development. Understanding the role of these factors in epidermis is complicated by the fact that each member is expressed in defined cell layers during epidermal differentiation, and because AP1 factors regulate competing processes (that is, proliferation, apoptosis and differentiation). We have proposed that AP1 factors function differently in basal versus suprabasal epidermis. To test this, we inactivated suprabasal AP1 factor function in mouse epidermis by targeted expression of dominant-negative c-jun (TAM67), which inactivates function of all AP1 factors. This produces increased basal keratinocyte proliferation, delayed differentiation and extensive hyperkeratosis. These findings contrast with previous studies showing that basal layer AP1 factor inactivation does not perturb resting epidermis. It is interesting that in spite of extensive keratinocyte hyperproliferation, susceptibility to carcinogen-dependent tumor induction is markedly attenuated. These novel observations strongly suggest that AP1 factors have distinct roles in the basal versus suprabasal epidermis, confirm that AP1 factor function is required for normal terminal differentiation, and suggest that AP1 factors have a different role in normal epidermis versus cancer progression.
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Affiliation(s)
- E A Rorke
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Bongiovanni L, Colombi I, Fortunato C, Della Salda L. Survivin expression in canine epidermis and in canine and human cutaneous squamous cell carcinomas. Vet Dermatol 2010; 20:369-76. [PMID: 20178473 DOI: 10.1111/j.1365-3164.2009.00822.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Survivin, a member of the inhibitor of apoptosis protein (IAP) family, is ubiquitously expressed during tissue development, undetectable in most normal tissues, but re-expressed in most cancers, including skin malignancies. Expression of survivin was evaluated retrospectively in 19 canine cutaneous squamous cell carcinomas (SCCs; one in situ; 16 well differentiated; one invasive, one lymph node metastasis) and 19 well differentiated SCCs from human beings. Seven specimens of normal canine skin were included. Immunohistochemical expression of full-length survivin was determined using a commercially available antibody. In addition, apoptotic rate [Terminal deoxynucleotidyl Transferase Biotin-dUTP Nick End Labelling index (TUNEL) index] and mitotic index (MI), counting mitoses in 10 high power fields (HPF), were determined. Scattered survivin positive nuclei were identified in the epidermal basal cell layer of normal canine skin. Nuclear survivin expression was identified in 18 of 19 human and in all canine SCCs, mainly along the base of the tumour cell population. Cytoplasmic survivin expression was rarely observed in human SCCs and in 84.2% of canine SCCs. The TUNEL index ranged from 0.1 to 2.6 in human beings and from 7.5 to 69.4 in dogs, while MIs ranged from 0 to 4 in human beings and dogs. No correlation was found between survivin expression and apoptotic or mitotic rates. Canine and human tumours showed similar nuclear survivin expression, indicating similar functions of the molecule. We demonstrated survivin expression in normal adult canine epidermis. Increased nuclear survivin expression in pre-neoplastic and neoplastic lesions demonstrates a possible association of survivin with development of SCCs in human beings and dogs.
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Affiliation(s)
- Laura Bongiovanni
- Department of Comparative Biomedical Sciences, Faculty of Veterinary Medicine, University of Teramo, Italy.
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A p38(MAPK)/HIF-1 pathway initiated by UVB irradiation is required to induce Noxa and apoptosis of human keratinocytes. J Invest Dermatol 2010; 130:2269-76. [PMID: 20393480 DOI: 10.1038/jid.2010.93] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The signal transduction pathways leading to apoptosis of human keratinocytes responding to UVB irradiation are complex and not completely understood. Previously, we reported that in UVB-irradiated keratinocytes, p38(MAPK) instigates Bcl-2-associated X protein (Bax) activation and mitochondrial apoptosis. However, the molecular mechanism underlying the pro-apoptotic function of p38(MAPK) remained unclear. Here, we show that in UVB-treated human primary keratinocytes the activation of p38(MAPK) is necessary to upregulate Noxa, a BH3-only pro-apoptotic dominantly induced by UVB and required for apoptosis. Whereas p53-silencing was marginally cytoprotective and poorly affected Noxa expression, p38(MAPK) inhibition in p53-silenced keratinocytes or in p53(-/-) cells could still efficiently prevent Noxa induction and intrinsic apoptosis after UVB, indicating that p38(MAPK) signals mainly through p53-independent mechanisms. Furthermore, p38(MAPK) was required for the induction and activation of hypoxia-inducible factor 1 (HIF-1) in response to UVB, and HIF-1 knockdown reduced Noxa expression and apoptosis. In UVB-irradiated keratinocytes, Noxa targeted the anti-apoptotic myeloid cell leukemia sequence 1 (Mcl-1) for degradation, and small-interfering RNA (siRNA)-mediated knockdown of Noxa or p38(MAPK) inhibition restored levels of Mcl-1 and abolished apoptosis. Thus, the pro-apoptotic mechanisms orchestrated by p38(MAPK) in human keratinocytes in response to UVB involve an HIF-1/Noxa axis, which prompts the downregulation of anti-apoptotic Mcl-1, thereby favoring Bax-mediated mitochondrial apoptosis of UVB-damaged keratinocytes.
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Oikawa T, Unno Y, Matsuno K, Sawada JI, Ogo N, Tanaka K, Asai A. Identification of a small-molecule inhibitor of the interaction between Survivin and Smac/DIABLO. Biochem Biophys Res Commun 2010; 393:253-8. [PMID: 20117083 DOI: 10.1016/j.bbrc.2010.01.113] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Accepted: 01/27/2010] [Indexed: 10/19/2022]
Abstract
The protein Survivin is selectively overexpressed in a variety of cancers, but not in normal tissues. It has been reported to be involved in cell survival and cell division. However, the molecular mechanisms involved in its function are not clear, although several binding partner proteins have been proposed to date. Here, we report the identification of a novel small molecule Survivin antagonist, which disrupts the Survivin-Smac/DIABLO interaction in cells. In order to identify Survivin-directed antagonists, we developed a high-throughput screening system based on AlphaScreen technology, which allows the identification of small molecules with the ability to inhibit the interaction of Survivin with Smac/DIABLO or INCENP in vitro. We screened chemical libraries, generated in-house, using this system and identified a 5-deazaflavin analog (compound 1) as a hit compound that selectively inhibited the interaction of Survivin with Smac/DIABLO but not INCENP. In cultured cells, compound 1 abrogated the formation of the complex between Survivin and Smac/DIABLO. In addition, this compound was able to sensitize cultured cells to doxorubicin-mediated DNA damage stress and synergistically enhance apoptotic cell death. Thus, the small-molecule inhibitor described here may serve as a proof-of-principle agent for discriminating between the multiple functions of Survivin.
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Polyploidy: Mechanisms and Cancer Promotion in Hematopoietic and Other Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2010; 676:105-22. [DOI: 10.1007/978-1-4419-6199-0_7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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