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Costantini L, Molinari R, Farinon B, Merendino N. Retinoic Acids in the Treatment of Most Lethal Solid Cancers. J Clin Med 2020; 9:E360. [PMID: 32012980 PMCID: PMC7073976 DOI: 10.3390/jcm9020360] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/14/2022] Open
Abstract
Although the use of oral administration of pharmacological all-trans retinoic acid (ATRA) concentration in acute promyelocytic leukaemia (APL) patients was approved for over 20 years and used as standard therapy still to date, the same use in solid cancers is still controversial. In the present review the literature about the top five lethal solid cancers (lung, stomach, liver, breast, and colon cancer), as defined by The Global Cancer Observatory of World Health Organization, and retinoic acids (ATRA, 9-cis retinoic acid, and 13-cis retinoic acid, RA) was compared. The action of retinoic acids in inhibiting the cell proliferation was found in several cell pathways and compartments: from membrane and cytoplasmic signaling, to metabolic enzymes, to gene expression. However, in parallel in the most aggressive phenotypes several escape routes have evolved conferring retinoic acids-resistance. The comparison between different solid cancer types pointed out that for some cancer types several information are still lacking. Moreover, even though some pathways and escape routes are the same between the cancer types, sometimes they can differently respond to retinoic acid therapy, so that generalization cannot be made. Further studies on molecular pathways are needed to perform combinatorial trials that allow overcoming retinoic acids resistance.
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Affiliation(s)
- Lara Costantini
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell’Università snc, 01100 Viterbo, Italy
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2
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The potential of retinoids for combination therapy of lung cancer: Updates and future directions. Pharmacol Res 2019; 147:104331. [PMID: 31254665 DOI: 10.1016/j.phrs.2019.104331] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/23/2019] [Accepted: 06/25/2019] [Indexed: 12/20/2022]
Abstract
Lung cancer is the most common cancer-related death worldwide. Natural compounds have shown high biological and pharmaceutical relevance as anticancer agents. Retinoids are natural derivatives of vitamin A having many regulatory functions in the human body, including vision, cellular proliferation and differentiation, and activation of tumour suppressor genes. Retinoic acid (RA) is a highly active retinoid isoform with promising anti-lung cancer activity. The abnormal expression of retinoid receptors is associated with loss of anticancer activities and acquired resistance to RA in lung cancer. The preclinical promise has not translated to the general clinical utility of retinoids for lung cancer patients, especially those with a history of smoking. Newer retinoid nano-formulations and the combinatorial use of retinoids has been associated with lower toxicity and more favorably efficacy in both the preclinical and clinical settings. Here, we highlight epidemiological and clinical therapeutic studies involving retinoids and lung cancer. We also discuss the biological actions of retinoids in lung cancer, which include effects on cancer stem cell differentiation, angiogenesis, metastasis, and proliferative. We suggest that the use of retinoids in combination with conventional and targeted anticancer agents will broaden the utility of these potent anticancer compounds in the lung cancer clinic.
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Moreb JS, Ucar-Bilyeu DA, Khan A. Use of retinoic acid/aldehyde dehydrogenase pathway as potential targeted therapy against cancer stem cells. Cancer Chemother Pharmacol 2016; 79:295-301. [PMID: 27942929 DOI: 10.1007/s00280-016-3213-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/29/2016] [Indexed: 12/28/2022]
Abstract
A large number of studies have investigated possible drug resistance mechanisms of cancer cells and suggested strategies to overcome it. In this review, we outline the role and function of aldehyde dehydrogenase (ALDH) activity in multiple cellular functions and in cancer stem cells (CSCs) and focus on the role of retinoic acid (RA), one of the products of ALDH isozymes. We discuss our observation that ATRA and other RAs can suppress ALDH activity and decrease different ALDH isozyme proteins and result in detrimental effects on cell proliferation, invasion and chemotherapy sensitivity. We review the known uses of different RAs in the treatment of cancers. We review the use of RAs in combination with chemo-/radiotherapy and the major signaling pathways affected in different tumor types. We provide follow-up on studies that may have used our prior observation with the aim of targeting the CSCs. We conclude with summary of the findings and potential impact of published studies on future use of RAs in the targeting of CSCs and drug resistance.
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Affiliation(s)
- Jan S Moreb
- Hematology/Oncology Division, Department of Medicine, University of Florida, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL, 32610, USA.
| | | | - Abdullah Khan
- Hematology/Oncology Division, Department of Medicine, University of Florida, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL, 32610, USA
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Morán González D, Domínguez-Gil Hurlé A. [Antisense therapy in oncology: present situation]. FARMACIA HOSPITALARIA 2006; 29:269-82. [PMID: 16268744 DOI: 10.1016/s1130-6343(05)73676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The purpose of antisense therapy is to control the regulation of genes contributing to cancer progression while sparing normal cell growth, which represents a novel alternative with fewer side effects when compared to conventional chemotherapy. Antisense oligonucleotides control cell proliferation by specifically blocking the expression of selected genes, and hence they are being developed as molecular drugs with potential activity for cancer treatment. Extensive clinical information and a number of clinical trials show encouraging results. This review discusses the most significant aspects of this new therapeutic alternative in oncology. Clinical trials performed thus far have demonstrated their short- to mid-term efficacy and safety; however, long-term studies are needed to definitely define their clinical effectiveness and true toxic profile.
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Abstract
Small-cell lung carcinoma is an aggressive form of lung cancer that is strongly associated with cigarette smoking and has a tendency for early dissemination. Increasing evidence has implicated autocrine growth loops, proto-oncogenes, and tumour-suppressor genes in its development. At presentation, the vast majority of patients are symptomatic, and imaging typically reveals a hilar mass. Pathology, in most cases of samples obtained by bronchoscopic biopsy, should be undertaken by pathologists with pulmonary expertise, with the provision of additional tissue for immunohistochemical stains as needed. Staging should aim to identify any evidence of distant disease, by imaging of the chest, upper abdomen, head, and bones as appropriate. Limited-stage disease should be treated with etoposide and cisplatin and concurrent early chest irradiation. All patients who achieve complete remission should be considered for treatment with prophylactic cranial irradiation, owing to the high frequency of brain metastases in this disease. Extensive-stage disease should be managed by combination chemotherapy, with a regimen such as etoposide and cisplatin administered for four to six cycles. Thereafter, patients with progressive or recurrent disease should be treated with additional chemotherapy. For patients who survive long term, careful monitoring for development of a second primary tumour is necessary, with further investigation and treatment as appropriate.
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Affiliation(s)
- David M Jackman
- Dana Farber Cancer Institute and Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
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van der Spek PJ, Kremer A, Murry L, Walker MG. Are gene expression microarray analyses reliable? A review of studies of retinoic acid responsive genes. GENOMICS PROTEOMICS & BIOINFORMATICS 2005; 1:9-14. [PMID: 15626329 PMCID: PMC5171945 DOI: 10.1016/s1672-0229(03)01003-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Microarray analyses of gene expression are widely used, but reports of the same analyses by different groups give widely divergent results, and raise questions regarding reproducibility and reliability. We take as an example recent published reports on microarray experiments that were designed to identify retinoic acid responsive genes. These reports show substantial differences in their results. In this article, we review the methodology, results, and potential causes of differences in these applications of microarrays. Finally, we suggest practices to improve the reliability and reproducibility of microarray experiments.
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Biroccio A, Leonetti C, Zupi G. The future of antisense therapy: combination with anticancer treatments. Oncogene 2003; 22:6579-88. [PMID: 14528283 DOI: 10.1038/sj.onc.1206812] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The current direction in cancer research is rational drug design, which is based on the evidence that transformed cells are characterized by alterations of genes devoted to the regulation of both cell proliferation and apoptosis. A variety of approaches have been carried out to develop new agents selective for cancer cells. Among these, antisense oligonucleotides (ASOs) are one of such class of new agents able to inhibit specifically the synthesis of a particular cancer-associated protein by binding to protein-encoding RNA, thereby preventing RNA function. In the past decade, several ASOs have been developed and tested in preclinical and clinical studies. Many have shown convincing in vitro reduction in target gene expression and promising activity against a wide variety of tumors. However, because of the multigenic alterations of tumors, the use of ASOs as single agents does not seem to be effective in the treatment of malignancies. Antisense therapy that interferes with signaling pathways involved in cell proliferation and apoptosis are particularly promising in combination with conventional anticancer treatment. An overview of the progress of ASOs used in combination therapy is provided.
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Affiliation(s)
- Annamaria Biroccio
- Experimental Chemotherapy Laboratory, Regina Elena Cancer Institute, Rome, Italy
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Knapp DC, Mata JE, Reddy MT, Devi GR, Iversen PL. Resistance to chemotherapeutic drugs overcome by c-Myc inhibition in a Lewis lung carcinoma murine model. Anticancer Drugs 2003; 14:39-47. [PMID: 12544257 DOI: 10.1097/00001813-200301000-00006] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Chemotherapy resistance is a significant obstacle in lung cancer therapy, and has been found to frequently correlate with amplification and overexpression of the c-myc oncogene. Earlier studies have shown that c-Myc inhibition alone is not always effective in cancer models. The purpose of this study was to test different dosing regimen, which included commonly used chemotherapeutic drugs in combination with c-Myc inhibition in a Lewis lung syngeneic drug-resistant murine tumor model. Inhibition of c-myc was specifically achieved by using phosphorodiamidate Morpholino oligomer (PMOs), a novel, non-toxic antisense DNA chemistry for inhibition of gene expression by an RNase H-independent mechanism. When administration of cisplatin overlapped with c-myc PMO (AVI-4126) treatment there was no additional effect on tumor growth inhibition compared to cisplatin alone. In contrast, using a dosing regimen in which cisplatin or taxol treatment preceded AVI-4126, a dramatic decrease in tumor growth rate was observed with tumor areas less then 0.5 cm2 in 60% of the animals at the end of the study. This effect was specific to c-Myc inhibition as other antisense PMOs against p21 or Rad51 showed no such effect in combination with chemotherapy. Immunoblot and HPLC-based analysis of tumor lysates at the end of the study confirmed c-Myc inhibition and detection of intact AVI-4126, respectively. In conclusion, AVI-4126 potentiates the efficacy of chemotherapeutic drugs in a manner that is schedule dependent.
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Abstract
The activated product of the myc oncogene deregulates both cell growth and death check points and, in a permissive environment, rapidly accelerates the affected clone through the carcinogenic process. Advances in understanding the molecular mechanism of Myc action are highlighted in this review. With the revolutionary developments in molecular diagnostic technology, we have witnessed an unprecedented advance in detecting activated myc in its deregulated, oncogenic form in primary human cancers. These improvements provide new opportunities to appreciate the tumor subtypes harboring deregulated Myc expression, to identify the essential cooperating lesions, and to realize the therapeutic potential of targeting Myc. Knowledge of both the breadth and depth of the numerous biological activities controlled by Myc has also been an area of progress. Myc is a multifunctional protein that can regulate cell cycle, cell growth, differentiation, apoptosis, transformation, genomic instability, and angiogenesis. New insights into Myc's role in regulating these diverse activities are discussed. In addition, breakthroughs in understanding Myc as a regulator of gene transcription have revealed multiple mechanisms of Myc activation and repression of target genes. Moreover, the number of reported Myc regulated genes has expanded in the past few years, inspiring a need to focus on classifying and segregating bona fide targets. Finally, the identity of Myc-binding proteins has been difficult, yet has exploded in the past few years with a plethora of novel interactors. Their characterization and potential impact on Myc function are discussed. The rapidity and magnitude of recent progress in the Myc field strongly suggests that this marvelously complex molecule will soon be unmasked.
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Affiliation(s)
- Sara K Oster
- Division of Cellular and Molecular Biology, Ontario Cancer Institute, Princess Margaret Hospital, University of Toronto
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Dapas B, Perissin L, Pucillo C, Quadrifoglio F, Scaggiante B. Increase in therapeutic index of doxorubicin and vinblastine by aptameric oligonucleotide in human T lymphoblastic drug-sensitive and multidrug-resistant cells. ANTISENSE & NUCLEIC ACID DRUG DEVELOPMENT 2002; 12:247-55. [PMID: 12238813 DOI: 10.1089/108729002320351566] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aptameric GT oligomers are a new class of potential anticancer molecules that inhibit the growth of human cancer cell lines by binding to specific nuclear proteins. We demonstrated that an aptameric GT oligonucleotide increased the therapeutic index of doxorubicin and vinblastine in T lymphoblastic drug-sensitive and multidrug-resistant (MDR) cells. The doxorubicin ID50 decreased 6.5-fold by coadministration of 1 microM GT to CCRF-CEM cells and by 24-fold by coadministration of 0.75 microM GT to CEM-VLB300 cells. In CEM-VLB300 cells, the vinblastine ID50 decreased 11-fold by coadministration of 0.5 microM GT. Control CT sequence did not potentiate the drugs in either CCRF-CEM or CEM-VLB300 cells. The ability of GT to bind to specific nuclear proteins in cancer cells related to the increase in the therapeutic index of doxorubicin and vinblastine. No cooperation was detected by the administration of GT oligomer together with doxorubicin to rat differentiated thyroid FRTL-5 cells and to normal human lymphocytes. These cells did not show binding of GT to the specific nuclear proteins, and they were not sensitive to the cytotoxic action of the GT sequence. Drug potentiation by GT not involving normal human lymphocytes might be exploited to develop a more selective treatment of drug-sensitive and MDR tumors.
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Affiliation(s)
- Barbara Dapas
- Department of Biomedical Sciences and Technologies, University of Udine, Italy
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Feng XH, Liang YY, Liang M, Zhai W, Lin X. Direct interaction of c-Myc with Smad2 and Smad3 to inhibit TGF-beta-mediated induction of the CDK inhibitor p15(Ink4B). Mol Cell 2002; 9:133-43. [PMID: 11804592 DOI: 10.1016/s1097-2765(01)00430-0] [Citation(s) in RCA: 171] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The c-Myc oncogene has been implicated in the genesis of diverse human tumors. Ectopic expression of the c-Myc gene in cultured epithelial cells causes resistance to the antiproliferative effects of TGF-beta. However, little is known about the precise mechanisms of c-Myc-mediated TGF-beta resistance. In this study, we reveal that c-Myc physically interacts with Smad2 and Smad3, two specific signal transducers involved in TGF-beta signaling. Through its direct interaction with Smads, c-Myc binds to the Sp1-Smad complex on the promoter of the p15(Ink4B) gene, thereby inhibiting the TGF-beta-induced transcriptional activity of Sp1 and Smad/Sp1-dependent transcription of the p15(Ink4B) gene. These results suggest that oncogenic c-Myc promotes cell growth and cancer development partly by inhibiting the growth inhibitory functions of Smads.
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Affiliation(s)
- Xin-Hua Feng
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA.
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