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Ali Beg MM, Saxena A, Singh VK, Akhter J, Habib H, Raisuddin S. Modulatory role of BV6 and chloroquine on the regulation of apoptosis and autophagy in non-small cell lung cancer cells. J Cancer Res Ther 2023; 19:S0. [PMID: 37147964 DOI: 10.4103/jcrt.jcrt_816_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Aims Non-small cell lung cancer (NSCLC) is one of the aggressive tumors mostly diagnosed in the advanced stage. Therapeutic failure and drug resistance pose a major problem in NSCLC treatment primarily due to alterations in autophagy and loss of apoptosis. Therefore, the present study aimed to investigate the importance of the second mitochondria-derived activator of caspase mimetic BV6 and autophagy inhibitor chloroquine (CQ) on the regulation of apoptosis and autophagy, respectively. Subjects and Methods Study was conducted on NCI-H23 and NCI-H522 cell lines to evaluate the effect of BV6 and CQ on the transcription and translation level of LC3-II, caspase-3, and caspase-9 genes by quantitative real-time-polymerase chain reaction and western blotting techniques. Results In NCI-H23 cell line, BV6 and CQ treatments showed increased mRNA and protein expression of caspase-3, and caspase-9 compared to its untreated counterpart. BV6 and CQ treatments also caused downregulation of LC3-II protein expression compared to its counterpart. In NCI-H522 cell line, BV6 treatment showed a significantly increased expression of caspase-3 and caspase-9 mRNA and protein expression levels whereas BV6 treatment downregulated the expression level of LC3-II protein. A similar pattern was also observed in CQ treatment when compared with the respective controls. Both BV6 and CQ modulated in vitro expression of caspases and LC3-II which have critical regulatory roles in apoptosis and autophagy, respectively. Conclusions Our findings suggest that BV6 and CQ could be promising candidates in NSCLC treatment and there is a need to explore them in vivo and in clinical applications.
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Affiliation(s)
- Mirza Masroor Ali Beg
- Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India; Biochemistry, Faculty of Medicine, Ala-Too International University, Bishkek, Kyrgyzstan
| | - Alpana Saxena
- Biochemistry, Hamdard Institute of Medical Sciences and Research, Jamia Hamdard (Hamdard University), New Delhi, India
| | | | - Juheb Akhter
- Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Haroon Habib
- Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Sheikh Raisuddin
- Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
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Coyle R, O'Sullivan MJ, Zisterer DM. Targeting inhibitor of apoptosis proteins (IAPs) with IAP inhibitors sensitises malignant rhabdoid tumour cells to cisplatin. Cancer Treat Res Commun 2022; 32:100579. [PMID: 35613525 DOI: 10.1016/j.ctarc.2022.100579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Malignant rhabdoid tumour (MRT) is a rare, aggressive paediatric malignancy most commonly diagnosed in those below the age of three. MRTs can arise in soft tissue but are more often associated with the central nervous system or kidney. Unfortunately, the prognosis upon diagnosis with MRT is poor. Given the resistance of MRT to current treatment protocols including cisplatin, and the vulnerability of this young patient population to aggressive therapies, there is a need for novel treatment options. Several members of the inhibitor of apoptosis protein (IAP) family including X‑linked inhibitor of apoptosis (XIAP), cellular inhibitor of apoptosis proteins 1 and 2 (cIAP1/cIAP2), livin and survivin have been implicated in chemotherapy resistance in various malignancies. We have previously demonstrated expression of these IAP family members in a panel of MRT cell lines. In the present study, sensitivity of this same panel of MRT cell lines to small-molecule mediated inhibition of the IAPs via the survivin inhibitor YM155 and the XIAP/cIAP1/cIAP2 inhibitor BV6 was demonstrated. Additionally, both BV6 and the XIAP inhibitor embelin synergistically enhanced cisplatin mediated apoptotic cell death in MRT cell lines, with enhanced caspase-3 cleavage. Importantly, we have demonstrated, for the first time, expression of XIAP, its target caspase-3 and its endogenous inhibitor SMAC in rhabdoid tumour patient tissue. In conclusion, this study provides pre-clinical evidence that IAP inhibition may be a new therapeutic option in MRT.
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Affiliation(s)
- Rachel Coyle
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland..
| | - Maureen J O'Sullivan
- The National Children's Research Centre, Children's Health Ireland at Crumlin, Dublin 12, Ireland
| | - Daniela M Zisterer
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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Salimifard S, Karoon Kiani F, Sadat Eshaghi F, Izadi S, Shahdadnejad K, Masjedi A, Heydari M, Ahmadi A, Hojjat-Farsangi M, Hassannia H, Mohammadi H, Boroumand-Noughabi S, Keramati MR, Jadidi-Niaragh F. Codelivery of BV6 and anti-IL6 siRNA by hyaluronate-conjugated PEG-chitosan-lactate nanoparticles inhibits tumor progression. Life Sci 2020; 260:118423. [PMID: 32941896 DOI: 10.1016/j.lfs.2020.118423] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 02/07/2023]
Abstract
AIMS Increased expression of inhibitor of apoptosis (IAP) genes has been associated with progressive cancer and chemoresistance. Accordingly, blockade of IAPs by BV6 has resulted in ameliorative outcomes. Interleukin (IL)-6 is another important mediator involved in the growth and survival of tumor cells. Therefore, we hypothesized that simultaneous inhibition of IAPs and IL-6 could be a new promising anti-tumor treatment strategy. MATERIALS AND METHODS In this study, we generated and characterized hyaluronate-PEG-Chitosan-Lactate (H-PCL) nanoparticles (NPs) to simultaneously deliver IL6-specific siRNA and BV6 to 4T1 (breast cancer) and CT26 (colon cancer) cells, and investigate the anti-tumor properties of this combination therapy both in vitro and in vivo. KEY FINDINGS H-PCL NPs exhibited good physicochemical properties leading to efficient transfection of cancer cells and suppression of target molecules. Moreover, combination therapy synergistically increased apoptosis, as well as decreased cell migration, proliferation, colony formation, and angiogenesis in both 4T1 and CT26 cell lines and suppressed cancer progression in tumor-bearing mice that was associated with enhanced survival time. SIGNIFICANCE These findings imply the effectiveness of cancer combination therapy by using H-PCL NPs loaded with anti-IL-6 siRNA and BV6.
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Affiliation(s)
- Sevda Salimifard
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Hematology and Blood Banking, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fariba Karoon Kiani
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Sadat Eshaghi
- Department of Genetics, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sepideh Izadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Masjedi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Heydari
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Armin Ahmadi
- Department of Chemical and Materials Engineering, The University of Alabama in Huntsville, AL 35899, USA
| | | | - Hadi Hassannia
- Immunogenetic Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamed Mohammadi
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj. Iran
| | - Samaneh Boroumand-Noughabi
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Hematology and Blood Banking, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Keramati
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Hematology and Blood Banking, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Nikkhoo A, Rostami N, Farhadi S, Esmaily M, Moghadaszadeh Ardebili S, Atyabi F, Baghaei M, Haghnavaz N, Yousefi M, Aliparasti MR, Ghalamfarsa G, Mohammadi H, Sojoodi M, Jadidi-Niaragh F. Codelivery of STAT3 siRNA and BV6 by carboxymethyl dextran trimethyl chitosan nanoparticles suppresses cancer cell progression. Int J Pharm 2020; 581:119236. [PMID: 32240809 DOI: 10.1016/j.ijpharm.2020.119236] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 12/24/2022]
Abstract
High expression of inhibitor of apoptosis (IAP) molecules in cancer cells promotes cancer cell chemoresistance. Use of BV6, a well-known IAP inhibitor, along with inhibition of signal transducer and activator of transcription 3 (STAT3), which is an important factor in the survival of tumor cells, and NIK as a mediator of BV6 unpredicted side effects, can induce effective apoptosis in tumor cells. The present study has investigated the combination therapy of cancer cells using Carboxymethyl Dextran-conjugated trimethyl chitosan (TMC-CMD) nanoparticles (NPs) loaded with NIK/STAT3-specific siRNA and BV6 to synergistically induce apoptosis in the breast, colorectal and melanoma cancer cell lines. Our results showed that in addition to enhanced pro-apoptotic effects, this combination therapy reduced proliferation, cell migration, colony formation, and angiogenesis, along with expression of factors including IL-10 and HIF in tumor cells. The results indicate the potential of this combination therapy for further investigation in animal models of cancer.
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Affiliation(s)
- Afshin Nikkhoo
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Narges Rostami
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shohreh Farhadi
- Student Research Committee, Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Esmaily
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Fatemeh Atyabi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Baghaei
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Navideh Haghnavaz
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ghasem Ghalamfarsa
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Hamed Mohammadi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mozhdeh Sojoodi
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, USA.
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Fischer K, Tognarelli S, Roesler S, Boedicker C, Schubert R, Steinle A, Klingebiel T, Bader P, Fulda S, Ullrich E. The Smac Mimetic BV6 Improves NK Cell-Mediated Killing of Rhabdomyosarcoma Cells by Simultaneously Targeting Tumor and Effector Cells. Front Immunol 2017; 8:202. [PMID: 28326081 PMCID: PMC5339542 DOI: 10.3389/fimmu.2017.00202] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 02/14/2017] [Indexed: 11/13/2022] Open
Abstract
Rhabdomyosarcoma (RMS), the most common cancer of connective tissues in pediatrics, is often resistant to conventional therapies. One underlying mechanism of this resistance is the overexpression of Inhibitor of Apoptosis (IAP) proteins, leading to a dysfunctional cell death program within tumor cells. Smac mimetics (SM) are small molecules that can reactivate the cell death program by antagonizing IAP proteins and thereby compensating their overexpression. Here, we report that SM sensitize two RMS cell lines (RD and RH30) toward natural killer (NK) cell-mediated killing on the one hand, and increase the cytotoxic potential of NK cells on the other. The SM-induced sensitization of RH30 cells toward NK cell-mediated killing is significantly reduced through blocking tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) on NK cells prior to coculture. In addition, the presence of zVAD.fmk, a pancaspase inhibitor, rescues tumor cells from the increase in killing, indicating an apoptosis-dependent cell death. On the NK cell side, the presence of SM in addition to IL-2 during the ex vivo expansion leads to an increase in their cytotoxic activity against RH30 cells. This effect is mainly TNFα-dependent and partially mediated by NK cell activation, which is associated with transcriptional upregulation of NF-κB target genes such as IκBα and RelB. Taken together, our findings implicate that SM represent a novel double-hit strategy, sensitizing tumor and activating NK cells with one single drug.
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Affiliation(s)
- Kyra Fischer
- University Hospital Frankfurt, Department for Children and Adolescents Medicine, Division of Stem Cell Transplantation and Immunology, Goethe University, Frankfurt, Germany; LOEWE Center for Cell and Gene Therapy, Goethe University, Frankfurt, Germany
| | - Sara Tognarelli
- University Hospital Frankfurt, Department for Children and Adolescents Medicine, Division of Stem Cell Transplantation and Immunology, Goethe University, Frankfurt, Germany; LOEWE Center for Cell and Gene Therapy, Goethe University, Frankfurt, Germany
| | - Stefanie Roesler
- Institute for Experimental Cancer Research in Pediatrics, Goethe University, Frankfurt, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Cathinka Boedicker
- Institute for Experimental Cancer Research in Pediatrics, Goethe University, Frankfurt, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ralf Schubert
- University Hospital Frankfurt, Department for Children and Adolescents Medicine, Goethe University, Frankfurt, Germany; University Hospital Frankfurt/Main, Department for Children and Adolescents Medicine, Division of Pulmonology, Allergy and Cystic Fibrosis, Goethe University, Frankfurt, Germany
| | - Alexander Steinle
- University Hospital Frankfurt, Department for Molecular Medicine, Goethe University , Frankfurt , Germany
| | - Thomas Klingebiel
- LOEWE Center for Cell and Gene Therapy, Goethe University, Frankfurt, Germany; University Hospital Frankfurt, Department for Children and Adolescents Medicine, Goethe University, Frankfurt, Germany
| | - Peter Bader
- University Hospital Frankfurt, Department for Children and Adolescents Medicine, Division of Stem Cell Transplantation and Immunology, Goethe University, Frankfurt, Germany; LOEWE Center for Cell and Gene Therapy, Goethe University, Frankfurt, Germany
| | - Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe University, Frankfurt, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Evelyn Ullrich
- University Hospital Frankfurt, Department for Children and Adolescents Medicine, Division of Stem Cell Transplantation and Immunology, Goethe University, Frankfurt, Germany; LOEWE Center for Cell and Gene Therapy, Goethe University, Frankfurt, Germany
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El-Mesery M, Shaker ME, Elgaml A. The SMAC mimetic BV6 induces cell death and sensitizes different cell lines to TNF-α and TRAIL-induced apoptosis. Exp Biol Med (Maywood) 2016; 241:2015-2022. [PMID: 27465142 DOI: 10.1177/1535370216661779] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The inhibitors of apoptosis proteins are implicated in promoting cancer cells survival and resistance toward immune surveillance and chemotherapy. Second mitochondria-derived activator of caspases (SMAC) mimetics are novel compounds developed to mimic the inhibitory effect of the endogenous SMAC/DIABLO on these IAPs. Here, we examined the potential effects of the novel SMAC mimetic BV6 on different human cancer cell lines. Our results indicated that BV6 was able to induce cell death in different human cancer cell lines. Mechanistically, BV6 dose dependently induced degradation of IAPs, including cIAP1 and cIAP2. This was coincided with activating the non-canonical NF -kappa B (NF-κB) pathway, as indicated by stabilizing NF-κB-inducing kinase (NIK) for p100 processing to p52. More interestingly, BV6 was able to sensitize some of the resistant cancer cell lines to apoptosis induced by the death ligands tumor necrosis factor-α (TNF-α) and TNF-related apoptosis-inducing ligand (TRAIL) that are produced by different cells of the immune system. Such cell death enhancement was mediated by inducing an additional cleavage of caspase-9 to augment that of caspase-8 induced by death ligands. This eventually led to more processing of the executioner caspase-3 and poly (ADP-ribose) polymerase (PARP). In conclusion, therapeutic targeting of IAPs by BV6 might be an effective approach to enhance cancer regression induced by immune system. Our data also open up the future possibility of using BV6 in combination with other antitumor therapies to overcome cancer drug resistance.
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Affiliation(s)
- Mohamed El-Mesery
- 1 Faculty of Pharmacy, Department of Biochemistry, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed E Shaker
- 2 Faculty of Pharmacy, Department of Pharmacology and Toxicology, Mansoura University, Mansoura 35516, Egypt
| | - Abdelaziz Elgaml
- 3 Faculty of Pharmacy, Department of Microbiology and Immunology, Mansoura University, Mansoura 35516, Egypt
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Uegaki T, Taniguchi F, Nakamura K, Osaki M, Okada F, Yamamoto O, Harada T. Inhibitor of apoptosis proteins (IAPs) may be effective therapeutic targets for treating endometriosis. Hum Reprod 2014; 30:149-58. [PMID: 25376458 DOI: 10.1093/humrep/deu288] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
STUDY QUESTION What is the role of the inhibitor of apoptosis proteins (IAPs) in human endometriotic tissues and a mouse model of endometriosis? SUMMARY ANSWER Four IAP proteins were expressed in endometriotic tissue indicating IAPs may be a key factor in the pathogenesis and progression of endometriosis. WHAT IS KNOWN ALREADY Overexpression of IAPs protects against a number of proapoptotic stimuli. IAPs (c-IAP1, c-IAP2, XIAP and Survivin) are expressed in human ectopic endometrial stromal cells (ESCs) from ovarian endometriomas. STUDY DESIGN, SIZE, DURATION Forty-eight women with or without ovarian endometrioma are included in this study. BALB/c mice (n = 24) were used for the mouse endometriosis model. Mice with surgically induced endometriosis were treated with an IAP antagonist (BV6) for 4 weeks. PARTICIPANTS/MATERIALS, SETTING, METHODS Human ectopic endometrial tissues from chocolate cysts and eutopic endometrial tissue were collected. ESCs were enzymatically isolated from these tissues. ESC proliferation was examined by 5-bromo-2'-deoxyuridine-enzyme-linked immunosorbent assay. IAPs expression in tissue derived from eutopic endometria and chocolate cysts was evaluated using real-time RT-PCR and immunohistochemistry. A homologous mouse endometriosis model was established by transplanting donor mouse uterine tissue into the abdominal cavities of recipient mice. After treating the mice with BV6 (i.p. 10 mg/ml), the extent of endometriosis-like lesions in mice was measured and proliferative activity assessed by Ki67 staining. All experiments were repeated a minimum of three times. MAIN RESULTS AND THE ROLE OF CHANCE IAP (c-IAP1, c-IAP2, XIAP and Survivin) mRNA and protein in human ectopic endometrial tissues were expressed at higher levels than in eutopic endometrial tissues (P < 0.05). All four IAPs proteins were expressed in mouse endometriosis-like implants. BV6 inhibited BrdU incorporation of human ESCs (P < 0.05 versus control). BV6 also decreased the total number, weight, surface area and Ki67 positive cells in the endometriosis-like lesions in the mice (P < 0.05 versus control). LIMITATIONS, REASONS FOR CAUTION Endometriotic lesions were surgically induced in mice by transplanting mouse uterine tissue only, not human pathological endometriotic tissue. Furthermore, the effects of BV6 on human ESCs and mouse endometriosis-like lesions may differ between the species. WIDER IMPLICATIONS OF THE FINDINGS Our data support the hypothesis that IAPs are involved in the development of endometriosis, and therefore an inhibitor of IAPs has potential as a novel treatment for endometriosis. STUDY FUNDING/COMPETING INTERESTS This work was supported by KAKENHI (Japan Society for the Promotion of Science, Grant-in-Aid: to F.T.; 21592098 and to T.H.; 24659731) and Yamaguchi Endocrine Research Foundation. The authors have no conflicts of interest to disclose.
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Affiliation(s)
- Takashi Uegaki
- Department of Obstetrics and Gynecology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago 683-8504, Japan
| | - Fuminori Taniguchi
- Department of Obstetrics and Gynecology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago 683-8504, Japan
| | - Kazuomi Nakamura
- Division of Laboratory Animal Science, Research Center for Bioscience and Technology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Mitsuhiko Osaki
- Pathological Biochemistry, Tottori University Faculty of Medicine, Yonago, Japan
| | - Futoshi Okada
- Pathological Biochemistry, Tottori University Faculty of Medicine, Yonago, Japan
| | - Osamu Yamamoto
- Dermatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Tasuku Harada
- Department of Obstetrics and Gynecology, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago 683-8504, Japan
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Rettinger E, Glatthaar A, Abhari BA, Oelsner S, Pfirrmann V, Huenecke S, Kuçi S, Kreyenberg H, Willasch AM, Klingebiel T, Fulda S, Bader P. SMAC Mimetic BV6 Enables Sensitization of Resistant Tumor Cells but also Affects Cytokine-Induced Killer (CIK) Cells: A Potential Challenge for Combination Therapy. Front Pediatr 2014; 2:75. [PMID: 25101252 PMCID: PMC4103003 DOI: 10.3389/fped.2014.00075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 07/03/2014] [Indexed: 01/03/2023] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is an established treatment option for high-risk hematological malignancies, and may also be offered to patients with solid malignancies refractory to conventional therapies. In case of patients' relapse, refractory tumor cells may then be targeted by cellular therapy-based combination strategies. Here, we investigated the potential of small molecule IAP (SMAC mimetic) BV6 in increasing cytokine-induced killer (CIK) cell-mediated cytotoxicity against different tumor targets. Four-hour pre-incubation with 2.5 μMol BV6 moderately enhanced CIK cell-mediated lysis of hematological (H9, THP-1, and Tanoue) and solid malignancies (RH1, RH30, and TE671). However, BV6 also increased apoptosis of non-malignant cells like peripheral blood mononuclear cells and most notably had an inhibitory effect on immune cells potentially limiting their cytotoxic potential. Hence, cytotoxicity increased in a dose-dependent manner when BV6 was removed before CIK cells were added to tumor targets. However, cytotoxic potential was not further increasable by extending BV6 pre-incubation period of target cells from 4 to 12 h. Molecular studies revealed that BV6 sensitization of target cells involved activation of caspases. Here, we provide evidence that SMAC mimetic may sensitize targets cells for CIK cell-induced cell death. However, BV6 also increased apoptosis of non-malignant cells like CIK cells and peripheral mononuclear cells. These findings may therefore be important for cell- and small molecule IAP-based combination therapies of resistant cancers after allogeneic HSCT.
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Affiliation(s)
- Eva Rettinger
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Andreas Glatthaar
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Behnaz Ahangarian Abhari
- Institute for Experimental Cancer Research in Pediatrics, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Sarah Oelsner
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany ; Georg-Speyer-Haus, Institute for Biomedical Research , Frankfurt , Germany
| | - Verena Pfirrmann
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Sabine Huenecke
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Selim Kuçi
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Hermann Kreyenberg
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Andre M Willasch
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Thomas Klingebiel
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe University Frankfurt am Main , Frankfurt , Germany
| | - Peter Bader
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents Medicine, University Hospital Frankfurt, Goethe University Frankfurt am Main , Frankfurt , Germany
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