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Dual-Functionalized Nanoliposomes Achieve a Synergistic Chemo-Phototherapeutic Effect. Int J Mol Sci 2022; 23:ijms232112817. [PMID: 36361615 PMCID: PMC9653560 DOI: 10.3390/ijms232112817] [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: 09/29/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022] Open
Abstract
The enhancement of photodynamic therapy (PDT) effectiveness by combining it with other treatment modalities and improved drug delivery has become an interesting field in cancer research. We have prepared and characterized nanoliposomes containing the chemotherapeutic drug irinotecan (CPT11lip), the photodynamic agent protoporphyrin IX (PpIXlip), or their combination (CPT11-PpIXlip). The effects of individual and bimodal (chemo-phototherapeutic) treatments on HeLa cells have been studied by a combination of biological and photophysical studies. Bimodal treatments show synergistic cytotoxic effects on HeLa cells at relatively low doses of PpIX/PDT and CPT11. Mechanistic cell inactivation studies revealed mitotic catastrophe, apoptosis, and senescence contributions. The enhanced anticancer activity is due to a sustained generation of reactive oxygen species, which increases the number of double-strand DNA breaks. Bimodal chemo-phototherapeutic liposomes may have a very promising future in oncological therapy, potentially allowing a reduction in the CPT11 concentration required to achieve a therapeutic effect and overcoming resistance to individual cancer treatments.
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Farhan M, Rizvi A. Understanding the Prooxidant Action of Plant Polyphenols in the Cellular Microenvironment of Malignant Cells: Role of Copper and Therapeutic Implications. Front Pharmacol 2022; 13:929853. [PMID: 35795551 PMCID: PMC9251333 DOI: 10.3389/fphar.2022.929853] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/02/2022] [Indexed: 12/13/2022] Open
Abstract
Plant derived polyphenolic compounds are considered critical components of human nutrition and have shown chemotherapeutic effects against a number of malignancies. Several studies have confirmed the ability of polyphenols to induce apoptosis and regression of tumours in animal models. However, the mechanism through which polyphenols modulate their malignant cell selective anticancer effects has not been clearly established. While it is believed that the antioxidant properties of these molecules may contribute to lowering the risk of cancer induction by causing oxidative damage to DNA, it could not be held responsible for chemotherapeutic properties and apoptosis induction. It is a well known fact that cellular copper increases within the malignant cell and in serum of patients harboring malignancies. This phenomenon is independent of the cellular origin of malignancies. Based on our own observations and those of others; over the last 30 years our laboratory has shown that cellular copper reacts with plant derived polyphenolic compounds, by a Fenton like reaction, which generates reactive oxygen species and leads to genomic DNA damage. This damage then causes an apoptosis like cell death of malignant cells, while sparing normal cells. This communication reviews our work in this area and lays the basis for understanding how plant derived polyphenols can behave as prooxidants (and not antioxidants) within the microenvironment of a malignancy (elevated copper levels) and gives rationale for their preferential cytotoxicity towards malignant cells.
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Affiliation(s)
- Mohd Farhan
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Ahsa, Saudi Arabia
- *Correspondence: Mohd Farhan,
| | - Asim Rizvi
- Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh, India
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Farhan M, Rizvi A, Ahmad A, Aatif M, Alam MW, Hadi SM. Structure of Some Green Tea Catechins and the Availability of Intracellular Copper Influence Their Ability to Cause Selective Oxidative DNA Damage in Malignant Cells. Biomedicines 2022; 10:biomedicines10030664. [PMID: 35327466 PMCID: PMC8945203 DOI: 10.3390/biomedicines10030664] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 02/05/2023] Open
Abstract
The possible roles of elevated endogenous copper levels in malignant cells are becoming increasingly understood at a greater depth. Our laboratory has previously demonstrated that tea catechins have the ability to mobilize endogenous copper and undergo a Fenton-like reaction that can selectively damage cancer cells. In this communication, by using a diverse panel of malignant cell lines, we demonstrate that the ability of the catechin family [(−)-epigallocatechin-3-gallate (EGCG), (−)-epigallocatechin (EGC), (−)-epicatechin (EC), and (+)-catechin (C)] to induce apoptosis is dependent on their structure. We further confirm that reactive oxygen species (ROS) are the terminal effectors causing copper-mediated DNA damage. Our studies demonstrate the role of cellular copper transporters CTR1 and ATP7A in the survival dynamics of malignant cells post-EGCG exposure. The results, when considered together with our previous studies, highlight the critical role that copper dynamics and mobilization plays in cancer cells and paves the way for a better understanding of catechins as nutraceutical supplements for malignancies.
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Affiliation(s)
- Mohd Farhan
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Correspondence:
| | - Asim Rizvi
- Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh 202002, India;
| | - Aamir Ahmad
- Interim Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar;
| | - Mohammad Aatif
- Department of Public Health, College of Applied Medical Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Mir Waqas Alam
- Department of Physics, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Sheikh Mumtaz Hadi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India;
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Poudel K, Thapa RK, Gautam M, Ou W, Soe ZC, Gupta B, Ruttala HB, Thuy HN, Dai PC, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Multifaceted NIR-responsive polymer-peptide-enveloped drug-loaded copper sulfide nanoplatform for chemo-phototherapy against highly tumorigenic prostate cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 21:102042. [DOI: 10.1016/j.nano.2019.102042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/09/2019] [Accepted: 05/29/2019] [Indexed: 12/17/2022]
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Time-staggered delivery of erlotinib and doxorubicin by gold nanocages with two smart polymers for reprogrammable release and synergistic with photothermal therapy. Biomaterials 2019; 217:119327. [PMID: 31299626 DOI: 10.1016/j.biomaterials.2019.119327] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/13/2019] [Accepted: 06/29/2019] [Indexed: 01/08/2023]
Abstract
Photochemotherapy is currently an effective anticancer therapy. Recently, it has been reported that cancer cells pretreated with epidermal growth factor receptor (EGFR) inhibitor erlotinib (Erl) can significantly synergize its apoptosis against the DNA damaging agent doxorubicin (Dox). As a result, we designed two gold nanocages (Au NCs) microcontainers covered with different smart polymer shell-PAA (pH responsive) and p (NIPAM-co-AM) (temperature responsive) containing Erl and Dox respectively. The acidic tumor microenvironment and NIR light irradiation can selectively activate the release of Erl and Dox. Time staggered release of Erl and Dox and photothermal therapy enhance the apoptotic signaling pathways, resulting in improved tumor cell killing in both MCF-7 (low EGFR expression) and A431 (very high EGFR expression) tumor cells, but more efficient in the latter. The photochemotherapy strategy controls the order and duration of drug exposure precisely in spatial and temporal, and significantly improves the therapeutic efficacy against high EGFR expressed tumors.
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Wang HH, Fu ZG, Li W, Li YX, Zhao LS, Wen L, Zhang JJ, Wen N. The synthesis and application of nano doxorubicin- indocyanine green matrix metalloproteinase-responsive hydrogel in chemophototherapy for head and neck squamous cell carcinoma. Int J Nanomedicine 2019; 14:623-638. [PMID: 30697046 PMCID: PMC6339648 DOI: 10.2147/ijn.s191069] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignancies, with high rates of mortality and morbidity worldwide. Owing to the special anatomical location of this tumor, an effective, minimally invasive treatment with low systemic toxicity is highly desirable. Hydrogels have shown great potential for tumor-targeting therapy, with excellent performance. However, there have been few reports on co-loading photosensitizers and chemotherapeutic drugs into hydrogels. In this study, we synthesized a nano doxorubicin-indocyanine green matrix metalloproteinase (MMP)-responsive hydrogel (denoted as NDIMH), combining chemotherapy and phototherapy, to achieve superior antitumor efficacy. Methods First, NDIMH was synthesized and characterized by scanning electron microscopy and drug-release assays. Second, the photosensitivity properties and antitumor efficiency of this drug delivery system were studied in vivo and in vitro. Last, the imaging and biodistribution of NDIMH were monitored using the Maestro EX in vivo imaging system. Results The nanodrugs loaded into the smart hydrogel exhibited uniform size distribution, excellent size stability, and a sustained release in the presence of MMP-2. NDIMH showed ideal photosensitivity characteristics under light. NDIMH with 808 nm near-infrared (NIR) irradiation effectively inhibited the viability, invasion, and metastasis of SCC-15 in vitro. After intratumoral injection of NDIMH with 808 nm NIR illumination, the hydrogels exhibited favorable synergistic antitumor efficacy and acceptable biosafety. Additionally, fluorescence imaging showed that NDIMH could significantly improve the retention of nanodrugs at the tumor site. Conclusion The intratumoral injection of NDIMH with 808 nm NIR irradiation could be a promising chemophototherapy alternative for HNSCC.
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Affiliation(s)
- Huan-Huan Wang
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
| | - Zhi-Guang Fu
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
| | - Wei Li
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China,
| | - Yun-Xia Li
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
| | - Li-Sheng Zhao
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
| | - Li Wen
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
| | - Jian-Jun Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China,
| | - Ning Wen
- Department of Stomatology, Chinese PLA General Hospital, Beijing 100853, China,
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Jiang W, Delahunty IM, Xie J. Oxygenating the way for enhanced chemophototherapy. Theranostics 2018; 8:3870-3871. [PMID: 30083265 PMCID: PMC6071522 DOI: 10.7150/thno.27810] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 01/16/2023] Open
Abstract
Hypoxia is behind tumor resistance in both chemotherapy and photodynamic therapy. This editorial highlights a study by Cai et al. [12] that a hemoglobin and human serum albumin hybrid protein nanoparticle can simultaneously deliver O2, chemotherapeutics, and photosensitizers to tumors for enhanced chemophototherapy.
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Ahmad M, Sahabjada , Akhtar J, Hussain A, Badaruddeen , Arshad M, Mishra A. Development of a new rutin nanoemulsion and its application on prostate carcinoma PC3 cell line. EXCLI JOURNAL 2017; 16:810-823. [PMID: 28694767 PMCID: PMC5500835 DOI: 10.17179/excli2016-668] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 05/22/2017] [Indexed: 12/15/2022]
Abstract
Biological effects of rutin bioactive are limited due to its poor oral bioavailability and its degradation in aqueous environments. For the purpose of bioenhancement, different nanoemulsion systems of rutin were developed by aqueous titration method using water as dispersion media. The nanoemulsion systems were characterized for surface morphology, droplet size, polydispersity index, zeta potential, in vitro release profile and the formulations were optimized. The anticancer potential of optimized nanoemulsion was evaluated by cells viability (MTT) assay, nuclear condensation, and ROS activity using human prostate cancer (PC3) cell line. On the basis of cell viability data the inhibitory concentration (IC50) value for optimized nanoemulsion formulation on PC3 cancer cells was found to be 11.8 μM. Fluorescent microscopic analysis and intracellular ROS generation demonstrated significant ROS induction that might lead to triggering the apoptosis pathway. In conclusion, developed nanoemulsion displayed significant efficacy against prostate carcinoma cells.
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Affiliation(s)
- Mohammad Ahmad
- Herbal Bioactive Research Laboratory, Faculty of Pharmacy, Integral University, Lucknow, India
| | - - Sahabjada
- Molecular Endocrinology Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
| | - Juber Akhtar
- Herbal Bioactive Research Laboratory, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Arshad Hussain
- College of Pharmacy, King Khalid University, Abha, KSA. Formerly, Faculty of Pharmacy, Integral University, Lucknow, India
| | - - Badaruddeen
- Herbal Bioactive Research Laboratory, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Md Arshad
- Molecular Endocrinology Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
| | - Anuradha Mishra
- Herbal Bioactive Research Laboratory, Faculty of Pharmacy, Integral University, Lucknow, India
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Ahmad U, Akhtar J, Singh SP, Badruddeen, Ahmad FJ, Siddiqui S, Wahajuddin. Silymarin nanoemulsion against human hepatocellular carcinoma: development and optimization. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:231-241. [DOI: 10.1080/21691401.2017.1324465] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Usama Ahmad
- Department of Pharmaceutics, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Juber Akhtar
- Department of Pharmaceutics, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Satya Prakash Singh
- Department of Pharmaceutics, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Badruddeen
- Department of Pharmaceutics, Faculty of Pharmacy, Integral University, Lucknow, India
| | - Farhan Jalees Ahmad
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - Sahabjada Siddiqui
- Molecular Endocrinology Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
| | - Wahajuddin
- Department of Pharmacokinetics, Central Drug Research Institute, Lucknow, India
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Luo D, Carter KA, Miranda D, Lovell JF. Chemophototherapy: An Emerging Treatment Option for Solid Tumors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600106. [PMID: 28105389 PMCID: PMC5238751 DOI: 10.1002/advs.201600106] [Citation(s) in RCA: 279] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/21/2016] [Indexed: 05/17/2023]
Abstract
Near infrared (NIR) light penetrates human tissues with limited depth, thereby providing a method to safely deliver non-ionizing radiation to well-defined target tissue volumes. Light-based therapies including photodynamic therapy (PDT) and laser-induced thermal therapy have been validated clinically for curative and palliative treatment of solid tumors. However, these monotherapies can suffer from incomplete tumor killing and have not displaced existing ablative modalities. The combination of phototherapy and chemotherapy (chemophototherapy, CPT), when carefully planned, has been shown to be an effective tumor treatment option preclinically and clinically. Chemotherapy can enhance the efficacy of PDT by targeting surviving cancer cells or by inhibiting regrowth of damaged tumor blood vessels. Alternatively, PDT-mediated vascular permeabilization has been shown to enhance the deposition of nanoparticulate drugs into tumors for enhanced accumulation and efficacy. Integrated nanoparticles have been reported that combine photosensitizers and drugs into a single agent. More recently, light-activated nanoparticles have been developed that release their payload in response to light irradiation to achieve improved drug bioavailability with superior efficacy. CPT can potently eradicate tumors with precise spatial control, and further clinical testing is warranted.
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Affiliation(s)
- Dandan Luo
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260
| | - Kevin A. Carter
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260
| | - Dyego Miranda
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260
| | - Jonathan F. Lovell
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260
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Shahid M, Siddique A, Ansari IA, Sama F, Chibber S, Khalid M, Siddiqi ZA, Faizi SH. Syntheses, crystal structures, and genotoxic studies of cis-µ-1,2-peroxo dicobalt(III) complexes. J COORD CHEM 2015. [DOI: 10.1080/00958972.2014.1003548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M. Shahid
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Armeen Siddique
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | | | - Farasha Sama
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Sandesh Chibber
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Mohd Khalid
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Zafar A. Siddiqi
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Serajul Haque Faizi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, India
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Yi YW, Kang HJ, Bae I. BRCA1 and Oxidative Stress. Cancers (Basel) 2014; 6:771-95. [PMID: 24704793 PMCID: PMC4074803 DOI: 10.3390/cancers6020771] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/20/2014] [Accepted: 03/24/2014] [Indexed: 01/07/2023] Open
Abstract
The breast cancer susceptibility gene 1 (BRCA1) has been well established as a tumor suppressor and functions primarily by maintaining genome integrity. Genome stability is compromised when cells are exposed to oxidative stress. Increasing evidence suggests that BRCA1 regulates oxidative stress and this may be another mechanism in preventing carcinogenesis in normal cells. Oxidative stress caused by reactive oxygen species (ROS) is implicated in carcinogenesis and is used strategically to treat human cancer. Thus, it is essential to understand the function of BRCA1 in oxidative stress regulation. In this review, we briefly summarize BRCA1's many binding partners and mechanisms, and discuss data supporting the function of BRCA1 in oxidative stress regulation. Finally, we consider its significance in prevention and/or treatment of BRCA1-related cancers.
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Affiliation(s)
- Yong Weon Yi
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA.
| | - Hyo Jin Kang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA.
| | - Insoo Bae
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA.
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Vitamin B2: A promising adjuvant in cisplatin based chemoradiotherapy by cellular redox management. Food Chem Toxicol 2013; 59:715-23. [DOI: 10.1016/j.fct.2013.07.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/07/2013] [Accepted: 07/08/2013] [Indexed: 11/24/2022]
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Duong HQ, Hong YB, Kim JS, Lee HS, Yi YW, Kim YJ, Wang A, Zhao W, Cho CH, Seong YS, Bae I. Inhibition of checkpoint kinase 2 (CHK2) enhances sensitivity of pancreatic adenocarcinoma cells to gemcitabine. J Cell Mol Med 2013; 17:1261-70. [PMID: 23855452 PMCID: PMC4159025 DOI: 10.1111/jcmm.12101] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 05/26/2013] [Accepted: 06/03/2013] [Indexed: 12/13/2022] Open
Abstract
Checkpoint kinase 2 (CHK2) plays pivotal function as an effector of cell cycle checkpoint arrest following DNA damage. Recently, we found that co-treatment of NSC109555 (a potent and selective CHK2 inhibitor) potentiated the cytotoxic effect of gemcitabine (GEM) in pancreatic cancer MIA PaCa-2 cells. Here, we further examined whether NSC109555 could enhance the antitumour effect of GEM in pancreatic adenocarcinoma cell lines. In this study, the combination treatment of NSC109555 plus GEM demonstrated strong synergistic antitumour effect in four pancreatic cancer cells (MIA PaCa-2, CFPAC-1, Panc-1 and BxPC-3). In addition, the GEM/NSC109555 combination significantly increased the level of intracellular reactive oxygen species (ROS), accompanied by induction of apoptotic cell death. Inhibition of ROS generation by N-acetyl cysteine (NAC) significantly reversed the effect of GEM/NSC109555 in apoptosis and cytotoxicity. Furthermore, genetic knockdown of CHK2 by siRNA enhanced GEM-induced apoptotic cell death. These findings suggest that inhibition of CHK2 would be a beneficial therapeutic approach for pancreatic cancer therapy in clinical treatment.
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Affiliation(s)
- Hong-Quan Duong
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA; WCU (World Class University) Research Center of Nanobiomedical Science, Dankook University, Cheonan, Korea
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Vacas E, Bajo AM, Schally AV, Sánchez-Chapado M, Prieto JC, Carmena MJ. Vasoactive intestinal peptide induces oxidative stress and suppresses metastatic potential in human clear cell renal cell carcinoma. Mol Cell Endocrinol 2013; 365:212-22. [PMID: 23123564 DOI: 10.1016/j.mce.2012.10.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 09/12/2012] [Accepted: 10/20/2012] [Indexed: 12/30/2022]
Abstract
Molecular mechanisms involved in progression of clear-cell renal-cell carcinomas (ccRCCs) are poorly understood. A common genetic mutation found in ccRCC is the loss of the von Hippel-Lindau (VHL) gene, which contributes to cancer progression and metastasis. We investigated VIP effects on metastatic and angiogenic factors in human VHL-null A498 ccRCC and HK2 renal cells. VIP increased adhesion but decreased expression of metalloproteinases, MMP2 and MMP9, as well as cell migration and VEGF expression and secretion in A498 but not in HK2 cells. VIP enhanced ROS levels and decreased nuclear levels of β-catenin and NFκB p50-subunit in A498 cells, suggesting neuropeptide involvement in the observed decrease of metastatic ability in clear-cell carcinoma. VIP effects in A498 cells were blocked by the VPAC(1/2)-receptor antagonist JV-1-53. In conclusion, present data point to a role of VIP in preventing invasion and metastasis in ccRCCs and support its potential therapeutic usefulness in this disease.
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Affiliation(s)
- Eva Vacas
- Department of Biochemistry and Molecular Biology, University of Alcalá, Alcalá de Henares, Spain
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