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Wang L, Yu Z, Zhang J, Guo J. Nanoformulations of chemotherapeutic activators of the cGAS-STING pathway in tumor chemoimmunotherapy. Drug Discov Today 2024; 29:103892. [PMID: 38272174 DOI: 10.1016/j.drudis.2024.103892] [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: 10/31/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
Chemotherapeutic drugs to activate the cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator of interferon genes (STING) pathway have been exploited for tumor chemoimmunotherapy. The clinical translation of chemotherapeutic cGAS-STING activators is hindered by the lack of safe, efficient, and specific delivery strategies. Nanodrug delivery systems (NDDS) designed for reducing toxic effects and improving transport effectiveness potentiate in vivo delivery of chemotherapeutic cGAS-STING activators. cGAS-STING monotherapy often encounters tumor resistance without providing satisfactory therapeutic benefit; therefore combination therapy is desirable. This review describes NDDS strategies for surmounting delivery obstacles of chemotherapeutic cGAS-STING activators and highlights combinatorial regimens, which utilize therapeutics that work by different mechanisms, for optimal therapy.
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Affiliation(s)
- Lingzhi Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Zhuo Yu
- Department of Hepatopathy, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jihong Zhang
- Hematology Laboratory, Shengjing Hospital of China Medical University, Shenyang 110022, China.
| | - Jianfeng Guo
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China.
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2
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Toledo B, González-Titos A, Hernández-Camarero P, Perán M. A Brief Review on Chemoresistance; Targeting Cancer Stem Cells as an Alternative Approach. Int J Mol Sci 2023; 24:ijms24054487. [PMID: 36901917 PMCID: PMC10003376 DOI: 10.3390/ijms24054487] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 02/06/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The acquisition of resistance to traditional chemotherapy and the chemoresistant metastatic relapse of minimal residual disease both play a key role in the treatment failure and poor prognosis of cancer. Understanding how cancer cells overcome chemotherapy-induced cell death is critical to improve patient survival rate. Here, we briefly describe the technical approach directed at obtaining chemoresistant cell lines and we will focus on the main defense mechanisms against common chemotherapy triggers by tumor cells. Such as, the alteration of drug influx/efflux, the enhancement of drug metabolic neutralization, the improvement of DNA-repair mechanisms, the inhibition of apoptosis-related cell death, and the role of p53 and reactive oxygen species (ROS) levels in chemoresistance. Furthermore, we will focus on cancer stem cells (CSCs), the cell population that subsists after chemotherapy, increasing drug resistance by different processes such as epithelial-mesenchymal transition (EMT), an enhanced DNA repair machinery, and the capacity to avoid apoptosis mediated by BCL2 family proteins, such as BCL-XL, and the flexibility of their metabolism. Finally, we will review the latest approaches aimed at decreasing CSCs. Nevertheless, the development of long-term therapies to manage and control CSCs populations within the tumors is still necessary.
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Affiliation(s)
- Belén Toledo
- Department of Health Sciences, University of Jaén, Campus de las Lagunillas, 23071 Jaen, Spain
| | - Aitor González-Titos
- Department of Health Sciences, University of Jaén, Campus de las Lagunillas, 23071 Jaen, Spain
| | - Pablo Hernández-Camarero
- Department of Health Sciences, University of Jaén, Campus de las Lagunillas, 23071 Jaen, Spain
- Correspondence: (P.H.-C.); (M.P.)
| | - Macarena Perán
- Department of Health Sciences, University of Jaén, Campus de las Lagunillas, 23071 Jaen, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Biopathology and Regenerative Medicine, Institute (IBIMER), University of Granada, Centre for Biomedical Research (CIBM), 18071 Granada, Spain
- Correspondence: (P.H.-C.); (M.P.)
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3
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Kobyakova M, Lomovskaya Y, Senotov A, Lomovsky A, Minaychev V, Fadeeva I, Shtatnova D, Krasnov K, Zvyagina A, Odinokova I, Akatov V, Fadeev R. The Increase in the Drug Resistance of Acute Myeloid Leukemia THP-1 Cells in High-Density Cell Culture Is Associated with Inflammatory-like Activation and Anti-Apoptotic Bcl-2 Proteins. Int J Mol Sci 2022; 23:ijms23147881. [PMID: 35887226 PMCID: PMC9324792 DOI: 10.3390/ijms23147881] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 12/10/2022] Open
Abstract
It is known that cell culture density can modulate the drug resistance of acute myeloid leukemia (AML) cells. In this work, we studied the drug sensitivity of AML cells in high-density cell cultures (cell lines THP-1, HL-60, MV4-11, and U937). It was shown that the AML cells in high-density cell cultures in vitro were significantly more resistant to DNA-damaging drugs and recombinant ligand izTRAIL than those in low-density cell cultures. To elucidate the mechanism of the increased drug resistance of AML cells in high-density cell cultures, we studied the activation of Bcl-2, Hif-1alpha, and NF-kB proteins, as well as cytokine secretion, the inflammatory immunophenotype, and the transcriptome for THP-1 cells in the low-density and high-density cultures. The results indicated that the increase in the drug resistance of proliferating THP-1 cells in high-density cell cultures was associated with the accumulation of inflammatory cytokines in extracellular medium, and the formation of NF-kB-dependent inflammatory-like cell activation with the anti-apoptotic proteins Bcl-2 and Bcl-xl. The increased drug resistance of THP-1 cells in high-density cultures can be reduced by ABT-737, an inhibitor of Bcl-2 family proteins, and by inhibitors of NF-kB. The results suggest a mechanism for increasing the drug resistance of AML cells in the bone marrow and are of interest for developing a strategy to suppress this resistance.
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Affiliation(s)
- Margarita Kobyakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Yana Lomovskaya
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Anatoly Senotov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Alexey Lomovsky
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Vladislav Minaychev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Irina Fadeeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Moscow Region, Russia
| | - Daria Shtatnova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Moscow Region, Russia
| | - Kirill Krasnov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Moscow Region, Russia
| | - Alena Zvyagina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Irina Odinokova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
| | - Vladimir Akatov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Moscow Region, Russia
| | - Roman Fadeev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia; (M.K.); (Y.L.); (A.S.); (A.L.); (V.M.); (I.F.); (D.S.); (K.K.); (A.Z.); (I.O.); (V.A.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Moscow Region, Russia
- Correspondence: ; Tel.: +7-977-706-65-67
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4
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Evangelisti G, Barra F, D'Alessandro G, Tantari M, Stigliani S, Della Corte L, Bifulco G, Ferrero S. Trabectedin for the therapy of ovarian cancer. Drugs Today (Barc) 2020; 56:669-688. [PMID: 33185631 DOI: 10.1358/dot.2020.56.10.3187001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/23/2022]
Abstract
Trabectedin is a marine-derivate antitumor drug with a relevant cytotoxic activity and good safety profile. It has been investigated for the treatment of solid diseases, including ovarian cancer (OC), breast cancer, and soft-tissue sarcoma. In 2009, results from the pivotal trial OVA-301 led the European Medicines Agency (EMA) to the approval of trabectedin in combination with PEGylated liposomal doxorubicin for the treatment of platinum-sensitive recurrent OC; further studies revealed an additional benefit also in the subgroup of patients with partially platinum-sensitive disease and in those with a BRCA-mutated status. Additionally, trabectedin demonstrated to prolong the time interval to the subsequent chemotherapy line. Recently, the improved understanding of the antitumor action exerted by trabectedin paved the way to new investigational trials exploring its combination with targeted therapies.
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Affiliation(s)
- G Evangelisti
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - F Barra
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy.
| | - G D'Alessandro
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - M Tantari
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - S Stigliani
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - L Della Corte
- Department of Neurosciences and Reproductive Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
| | - G Bifulco
- Department of Neurosciences and Reproductive Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
| | - S Ferrero
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
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5
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Abstract
MicroRNAs are a class of small non-coding regulatory RNAs playing key roles in cancer. Breast cancer is the most common female malignancy worldwide and is categorized into four molecular subtypes: luminal A and B, HER2+ and triple-negative breast cancer (TNBC). Despite the development of multiple targeted therapies for luminal and HER2+ breast tumors, TNBC lacks specific therapeutic approaches, thus they are treated mainly with radio- and chemotherapy. The effectiveness of these therapeutic regimens is based on their ability to induce DNA damage, which is differentially resolved and repaired by normal vs. cancer cells. Recently, drugs directly targeting DNA repair mechanisms, such as PARP inhibitors, have emerged as attractive candidates for the future molecular targeted-therapy in breast cancer. These compounds prevent cancer cells to appropriate repair DNA double strand breaks and induce a phenomenon called synthetic lethality, that results from the concurrent inhibition of PARP and the absence of functional BRCA genes which prompt cell death. MicroRNAs are relevant players in most of the biological processes including DNA damage repair mechanisms. Consistently, the downregulation of DNA repair genes by miRNAs have been probe to improve the therapeutic effect of genotoxic drugs. In this review, we discuss how microRNAs can sensitize cancer cells to DNA-damaging drugs, through the regulation of DNA repair genes, and examine the most recent findings on their possible use as a therapeutic tools of treatment response in breast cancer.
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Affiliation(s)
- Ilaria Plantamura
- Molecular Targeting Unit, Research Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giulia Cosentino
- Molecular Targeting Unit, Research Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Alessandra Cataldo
- Molecular Targeting Unit, Research Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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6
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Blasiak J. DNA-Damaging Anticancer Drugs - A Perspective for DNA Repair- Oriented Therapy. Curr Med Chem 2017; 24:1488-1503. [PMID: 28120709 DOI: 10.2174/0929867324666170124145557] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 04/28/2016] [Revised: 09/07/2016] [Accepted: 12/20/2016] [Indexed: 11/22/2022]
Abstract
DNA-damaging drugs in cancer present two main problems: therapeutic resistance and side effects and both can associate with DNA repair, which can be targeted in cancer therapy. Bleomycin (BLM) induces complex DNA damages, including strand breaks, base loss and 3'-phosphoglycolate (3'PG) residues repaired by several pathways, but 3'PGs must be processed to the 3'-OH ends, usually by tyrosyl-DNA phosphodiesterase 1 (Tdp1). Therefore, targeting Tdp1 can improve anticancer therapy with BLM. Mitomycin C (MMC) produces a variety of adducts with DNA, including inter-strand cross-links (ICLs) and Xeroderma pigmentosum (XP) proteins, including XPG, XPE and XPF can be crucial for the initial stage of ICL repair, so they can be targeted by inhibitors to increase toxicity of MMC in cancer cells. Although these proteins are essential for nucleotide excision repair (NER), their decreased activity may not be fatal in normal cells as almost all NER substrates can be repaired by other pathways. Four-stranded DNA, resulted mainly from guanine quadruplexes (G-4s), are highly overexpressed at the end of telomeres, where they can inhibit telomerase, hence stabilization G-4s at the telomeres ends can hamper proliferation of cancer cells. Quadruplexes are also found in the promoters of genes important for cancer and are resolved by DNA helicases, which can be targeted in cancer along with stabilization of quadruplexes. As cancer cells often have defects in DNA repair pathway(s), they can be subjected by synthetic lethality, with the most promising results with poly(ADP-ribose) polymerase 1 (PARP-1) and DNA-dependent protein kinase, catalytic subunit (DNA-PKCS).
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Affiliation(s)
- Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
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7
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Fransson Å, Glaessgen D, Alfredsson J, Wiman KG, Bajalica-Lagercrantz S, Mohell N. Strong synergy with APR-246 and DNA-damaging drugs in primary cancer cells from patients with TP53 mutant High-Grade Serous ovarian cancer. J Ovarian Res 2016. [PMID: 27179933 DOI: 10.1186/s13048-016-0239-6] [] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mutation in the tumor suppressor gene TP53 is an early event in the development of high-grade serous (HGS) ovarian cancer and is identified in more than 96 % of HGS cancer patients. APR-246 (PRIMA-1(MET)) is the first clinical-stage compound that reactivates mutant p53 protein by refolding it to wild type conformation, thus inducing apoptosis. APR-246 has been tested as monotherapy in a Phase I/IIa clinical study in hematological malignancies and prostate cancer with promising results, and a Phase Ib/II study in combination with platinum-based therapy in ovarian cancer is ongoing. In the present study, we investigated the anticancer effects of APR-246 in combination with conventional chemotherapy in primary cancer cells isolated from ascitic fluid from 10 ovarian, fallopian tube, or peritoneal cancer patients, 8 of which had HGS cancer. METHODS Cell viability was assessed with fluorometric microculture cytotoxicity assay (FMCA) and Combination Index was calculated using the Additive model. p53 status was determined by Sanger sequencing and single strand conformation analysis, and p53 protein expression by western blotting. RESULTS We observed strong synergy with APR-246 and cisplatin in all tumor samples carrying a TP53 missense mutation, while synergistic or additive effects were found in cells with wild type or TP53 nonsense mutations. Strong synergy was also observed with carboplatin or doxorubicin. Moreover, APR-246 sensitized TP53 mutant primary ovarian cancer cells, isolated from a clinically platinum-resistant patient, to cisplatin; the IC50 value of cisplatin decreased 3.6 fold from 6.5 to 1.8 μM in the presence of clinically relevant concentration of APR-246. CONCLUSION These results suggest that combination treatment with APR-246 and DNA-damaging drugs could significantly improve the treatment of patients with TP53 mutant HGS cancer, and thus provide strong support for the ongoing clinical study with APR-246 in combination with carboplatin and pegylated liposomal doxorubicin in patients with recurrent HGS cancer.
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Affiliation(s)
| | | | | | - Klas G Wiman
- Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
| | - Svetlana Bajalica-Lagercrantz
- Karolinska University Hospital, Stockholm, Sweden.,Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
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8
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Fransson Å, Glaessgen D, Alfredsson J, Wiman KG, Bajalica-Lagercrantz S, Mohell N. Strong synergy with APR-246 and DNA-damaging drugs in primary cancer cells from patients with TP53 mutant High-Grade Serous ovarian cancer. J Ovarian Res 2016. [PMID: 27179933 DOI: 10.1186/s13048-016-0239-6]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mutation in the tumor suppressor gene TP53 is an early event in the development of high-grade serous (HGS) ovarian cancer and is identified in more than 96 % of HGS cancer patients. APR-246 (PRIMA-1(MET)) is the first clinical-stage compound that reactivates mutant p53 protein by refolding it to wild type conformation, thus inducing apoptosis. APR-246 has been tested as monotherapy in a Phase I/IIa clinical study in hematological malignancies and prostate cancer with promising results, and a Phase Ib/II study in combination with platinum-based therapy in ovarian cancer is ongoing. In the present study, we investigated the anticancer effects of APR-246 in combination with conventional chemotherapy in primary cancer cells isolated from ascitic fluid from 10 ovarian, fallopian tube, or peritoneal cancer patients, 8 of which had HGS cancer. METHODS Cell viability was assessed with fluorometric microculture cytotoxicity assay (FMCA) and Combination Index was calculated using the Additive model. p53 status was determined by Sanger sequencing and single strand conformation analysis, and p53 protein expression by western blotting. RESULTS We observed strong synergy with APR-246 and cisplatin in all tumor samples carrying a TP53 missense mutation, while synergistic or additive effects were found in cells with wild type or TP53 nonsense mutations. Strong synergy was also observed with carboplatin or doxorubicin. Moreover, APR-246 sensitized TP53 mutant primary ovarian cancer cells, isolated from a clinically platinum-resistant patient, to cisplatin; the IC50 value of cisplatin decreased 3.6 fold from 6.5 to 1.8 μM in the presence of clinically relevant concentration of APR-246. CONCLUSION These results suggest that combination treatment with APR-246 and DNA-damaging drugs could significantly improve the treatment of patients with TP53 mutant HGS cancer, and thus provide strong support for the ongoing clinical study with APR-246 in combination with carboplatin and pegylated liposomal doxorubicin in patients with recurrent HGS cancer.
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Affiliation(s)
| | | | | | - Klas G Wiman
- Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
| | - Svetlana Bajalica-Lagercrantz
- Karolinska University Hospital, Stockholm, Sweden.,Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
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9
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Fransson Å, Glaessgen D, Alfredsson J, Wiman KG, Bajalica-Lagercrantz S, Mohell N. Strong synergy with APR-246 and DNA-damaging drugs in primary cancer cells from patients with TP53 mutant High-Grade Serous ovarian cancer. J Ovarian Res 2016; 9:27. [PMID: 27179933 PMCID: PMC4868029 DOI: 10.1186/s13048-016-0239-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [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: 02/23/2016] [Accepted: 05/05/2016] [Indexed: 12/19/2022] Open
Abstract
Background Mutation in the tumor suppressor gene TP53 is an early event in the development of high-grade serous (HGS) ovarian cancer and is identified in more than 96 % of HGS cancer patients. APR-246 (PRIMA-1MET) is the first clinical-stage compound that reactivates mutant p53 protein by refolding it to wild type conformation, thus inducing apoptosis. APR-246 has been tested as monotherapy in a Phase I/IIa clinical study in hematological malignancies and prostate cancer with promising results, and a Phase Ib/II study in combination with platinum-based therapy in ovarian cancer is ongoing. In the present study, we investigated the anticancer effects of APR-246 in combination with conventional chemotherapy in primary cancer cells isolated from ascitic fluid from 10 ovarian, fallopian tube, or peritoneal cancer patients, 8 of which had HGS cancer. Methods Cell viability was assessed with fluorometric microculture cytotoxicity assay (FMCA) and Combination Index was calculated using the Additive model. p53 status was determined by Sanger sequencing and single strand conformation analysis, and p53 protein expression by western blotting. Results We observed strong synergy with APR-246 and cisplatin in all tumor samples carrying a TP53 missense mutation, while synergistic or additive effects were found in cells with wild type or TP53 nonsense mutations. Strong synergy was also observed with carboplatin or doxorubicin. Moreover, APR-246 sensitized TP53 mutant primary ovarian cancer cells, isolated from a clinically platinum-resistant patient, to cisplatin; the IC50 value of cisplatin decreased 3.6 fold from 6.5 to 1.8 μM in the presence of clinically relevant concentration of APR-246. Conclusion These results suggest that combination treatment with APR-246 and DNA-damaging drugs could significantly improve the treatment of patients with TP53 mutant HGS cancer, and thus provide strong support for the ongoing clinical study with APR-246 in combination with carboplatin and pegylated liposomal doxorubicin in patients with recurrent HGS cancer.
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Affiliation(s)
| | | | | | - Klas G Wiman
- Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
| | - Svetlana Bajalica-Lagercrantz
- Karolinska University Hospital, Stockholm, Sweden.,Karolinska Institutet Dept. of Oncology-Pathology, Cancer Center Karolinska (CCK), Stockholm, Sweden
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10
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Gale RP, Hlatky L, Sachs RK, Radivoyevitch T. Why is there so much therapy-related AML and MDS and so little therapy-related CML? Leuk Res 2014; 38:1162-4. [PMID: 25175829 DOI: 10.1016/j.leukres.2014.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/03/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Robert Peter Gale
- Haematology Research Centre, Division of Experimental Medicine, Department of Medicine, Imperial College London, London, UK.
| | - Lynn Hlatky
- Center of Cancer Systems Biology, GRI, Tufts University School of Medicine, Boston, MA, United States
| | - Rainer K Sachs
- Department of Mathematics and Physics, University of California, Berkeley, CA, United States
| | - Tomas Radivoyevitch
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, United States
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