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Malla R, Srilatha M, Farran B, Nagaraju GP. mRNA vaccines and their delivery strategies: A journey from infectious diseases to cancer. Mol Ther 2024; 32:13-31. [PMID: 37919901 PMCID: PMC10787123 DOI: 10.1016/j.ymthe.2023.10.024] [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: 10/17/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023] Open
Abstract
mRNA vaccines have evolved as promising cancer therapies. These vaccines can encode tumor-allied antigens, thus enabling personalized treatment approaches. They can also target cancer-specific mutations and overcome immune evasion mechanisms. They manipulate the body's cellular functions to produce antigens, elicit immune responses, and suppress tumors by overcoming limitations associated with specific histocompatibility leukocyte antigen molecules. However, successfully delivering mRNA into target cells destroys a crucial challenge. Viral and nonviral vectors (lipid nanoparticles and cationic liposomes) have shown great capacity in protecting mRNA from deterioration and assisting in cellular uptake. Cell-penetrating peptides, hydrogels, polymer-based nanoparticles, and dendrimers have been investigated to increase the delivery efficacy and immunogenicity of mRNA. This comprehensive review explores the landscape of mRNA vaccines and their delivery platforms for cancer, addressing design considerations, diverse delivery strategies, and recent advancements. Overall, this review contributes to the progress of mRNA vaccines as an innovative strategy for effective cancer treatment.
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Affiliation(s)
- RamaRao Malla
- Cancer Biology Lab, Department of Biochemistry and Bioinformatics, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam 530045, AP, India
| | - Mundla Srilatha
- Department of Biotechnology, Sri Venkateswara University, Tirupati 517502, AP, India
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
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Chakkera M, Foote JB, Farran B, Nagaraju GP. Breaking the stromal barrier in pancreatic cancer: Advances and challenges. Biochim Biophys Acta Rev Cancer 2024; 1879:189065. [PMID: 38160899 DOI: 10.1016/j.bbcan.2023.189065] [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: 08/04/2023] [Revised: 12/15/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Pancreatic cancer (PC) remains a leading cause of mortality worldwide due to the absence of early detection methods and the low success rates of traditional therapeutic strategies. Drug resistance in PC is driven by its desmoplastic stroma, which creates a barrier that shields cancer niches and prevents the penetration of drugs. The PC stroma comprises heterogeneous cellular populations and non-cellular components involved in aberrant ECM deposition, immunosuppression, and drug resistance. These components can influence PC development through intricate and complex crosstalk with the PC cells. Understanding how stromal components and cells interact with and influence the invasiveness and refractoriness of PC cells is thus a prerequisite for developing successful stroma-modulating strategies capable of remodeling the PC stroma to alleviate drug resistance and enhance therapeutic outcomes. In this review, we explore how non-cellular and cellular stromal components, including cancer-associated fibroblasts and tumor-associated macrophages, contribute to the immunosuppressive and tumor-promoting effects of the stroma. We also examine the signaling pathways underlying their activation, tumorigenic effects, and interactions with PC cells. Finally, we discuss recent pre-clinical and clinical work aimed at developing and testing novel stroma-modulating agents to alleviate drug resistance and improve therapeutic outcomes in PC.
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Affiliation(s)
- Mohana Chakkera
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA
| | - Jeremy B Foote
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
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Akce M, Farran B, Switchenko JM, Rupji M, Kang S, Khalil L, Ruggieri-Joyce A, Olson B, Shaib WL, Wu C, Alese OB, Diab M, Lesinski GB, El-Rayes BF. Phase II trial of nivolumab and metformin in patients with treatment-refractory microsatellite stable metastatic colorectal cancer. J Immunother Cancer 2023; 11:e007235. [PMID: 37852737 PMCID: PMC10603338 DOI: 10.1136/jitc-2023-007235] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Preclinical studies showed metformin reduces exhaustion of tumor-infiltrating lymphocytes and potentiates programmed cell death protein-1 (PD-1) blockade. We hypothesized that metformin with nivolumab would elicit potent antitumor and immune modulatory activity in metastatic microsatellite stable (MSS) colorectal cancer (CRC). We evaluated this hypothesis in a phase II study. METHODS Nivolumab (480 mg) was administered intravenously every 4 weeks while metformin (1000 mg) was given orally, two times per day following a 14-day metformin only lead-in phase. Patients ≥18 years of age, with previously treated, stage IV MSS CRC, and Eastern Cooperative Oncology Group 0-1, having received no prior anti-PD-1 agent were eligible. The primary endpoint was overall response rate with secondary endpoints of overall survival (OS) and progression-free survival (PFS). Correlative studies using paired pretreatment/on-treatment biopsies and peripheral blood evaluated a series of immune biomarkers in the tumor microenvironment and systemic circulation using ChipCytometry and flow cytometry. RESULTS A total of 24 patients were enrolled, 6 patients were replaced per protocol, 18 patients had evaluable disease. Of the 18 evaluable patients, 11/18 (61%) were women and the median age was 58 (IQR 50-67). Two patients had stable disease, but no patients had objective response, hence the study was stopped for futility. Median OS and PFS was 5.2 months (95% CI (3.2 to 11.7)) and 2.3 months (95% CI (1.7 to 2.3)). Most common grade 3/4 toxicities: Anemia (n=2), diarrhea (n=2), and fever (n=2). Metformin alone failed to increase the infiltration of T-cell subsets in the tumor, but combined metformin and nivolumab increased percentages of tumor-infiltrating leukocytes (p=0.031). Dual treatment also increased Tim3+ levels in patient tissues and decreased naïve CD8+T cells (p=0.0475). CONCLUSIONS Nivolumab and metformin were well tolerated in patients with MSS CRC but had no evidence of efficacy. Correlative studies did not reveal an appreciable degree of immune modulation from metformin alone, but showed trends in tumorous T-cell infiltration as a result of dual metformin and PD-1 blockade despite progression in a majority of patients.
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Affiliation(s)
- Mehmet Akce
- Division of Hematology and Oncology, Department of Medicine, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Jeffrey M Switchenko
- Biostatistics Shared Resource, Emory University Winship Cancer institute, Atlanta, Georgia, USA
- Department of Biostsatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Manali Rupji
- Biostatistics Shared Resource, Emory University Winship Cancer institute, Atlanta, Georgia, USA
| | - Sandra Kang
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Lana Khalil
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Amanda Ruggieri-Joyce
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Brian Olson
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Walid L Shaib
- Northwest Georgia Oncology Centers Wellstar, Marietta, Georgia, USA
| | - Christina Wu
- Division of Hematology and Oncology, Department of Internal Medicine, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Olatunji B Alese
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Maria Diab
- Department of Internal Medicine, Michigan State University, East Lansing, Michigan, USA
- Department of Internal Medicine, Henry Ford Health, Detroit, Michigan, USA
| | - Gregory B Lesinski
- Department of Hematology and Medical Oncology, Emory University Winship Cancer Institute, Atlanta, Georgia, USA
| | - Bassel F El-Rayes
- Division of Hematology and Oncology, Department of Medicine, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA
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Bandi DSR, Sarvesh S, Farran B, Nagaraju GP, El-Rayes BF. Targeting the metabolism and immune system in pancreatic ductal adenocarcinoma: Insights and future directions. Cytokine Growth Factor Rev 2023; 71-72:26-39. [PMID: 37407355 DOI: 10.1016/j.cytogfr.2023.06.006] [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: 06/07/2023] [Revised: 06/29/2023] [Accepted: 06/29/2023] [Indexed: 07/07/2023]
Abstract
Pancreatic cancer, specifically pancreatic ductal adenocarcinoma (PDAC), presents a challenging landscape due to its complex nature and the highly immunosuppressive tumor microenvironment (TME). This immunosuppression severely limits the effectiveness of immune-based therapies. Studies have revealed the critical role of immunometabolism in shaping the TME and influencing PDAC progression. Genetic alterations, lysosomal dysfunction, gut microbiome dysbiosis, and altered metabolic pathways have been shown to modulate immunometabolism in PDAC. These metabolic alterations can significantly impact immune cell functions, including T-cells, myeloid-derived suppressor cells (MDSCs), and macrophages, evading anti-tumor immunity. Advances in immunotherapy offer promising avenues for overcoming immunosuppressive TME and enhancing patient outcomes. This review highlights the challenges and opportunities for future research in this evolving field. By exploring the connections between immunometabolism, genetic alterations, and the microbiome in PDAC, it is possible to tailor novel approaches capable of improving immunotherapy outcomes and addressing the limitations posed by immunosuppressive TME. Ultimately, these insights may pave the way for improved treatment options and better outcomes for PDAC patients.
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Affiliation(s)
- Dhana Sekhar Reddy Bandi
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA
| | - Sujith Sarvesh
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
| | - Bassel F El-Rayes
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
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Ganji C, Muppala V, Khan M, Purnachandra Nagaraju G, Farran B. Mitochondrial-targeted nanoparticles: Delivery and therapeutic agents in cancer. Drug Discov Today 2023; 28:103469. [PMID: 36529353 DOI: 10.1016/j.drudis.2022.103469] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 09/29/2022] [Revised: 11/30/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Mitochondria are the powerhouses of cells and modulate the essential metabolic functions required for cellular survival. Various mitochondrial pathways, such as oxidative phosphorylation or production of reactive oxygen species (ROS) are dysregulated during cancer growth and development, rendering them attractive targets against cancer. Thus, the delivery of antitumor agents to mitochondria has emerged as a potential approach for treating cancer. Recent advances in nanotechnology have provided innovative solutions for overcoming the physical barriers posed by the structure of mitochondrial organelles, and have enabled the development of efficient mitochondrial nanoplatforms. In this review, we examine the importance of mitochondria during neoplastic development, explore the most recent smart designs of nano-based systems aimed at targeting mitochondria, and highlight key mitochondrial pathways in cancer cells.
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Affiliation(s)
- Chaithanya Ganji
- Department of Hematology and Oncology, School of Medicine, University of Alabama, Birmingham, AL 35201, USA
| | - Veda Muppala
- Department of Hematology and Oncology, School of Medicine, University of Alabama, Birmingham, AL 35201, USA
| | - Musaab Khan
- Department of Hematology and Oncology, School of Medicine, University of Alabama, Birmingham, AL 35201, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, School of Medicine, University of Alabama, Birmingham, AL 35201, USA.
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
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Nagaraju GP, Farran B, Luong T, El-Rayes BF. Understanding the molecular mechanisms that regulate pancreatic cancer stem cell formation, stemness and chemoresistance: A brief overview. Semin Cancer Biol 2023; 88:67-80. [PMID: 36535506 DOI: 10.1016/j.semcancer.2022.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Pancreatic cancer is one of the most aggressive cancers worldwide due to the resistances to conventional therapies and early metastasis. Recent research has shown that cancer stem cell populations modulate invasiveness, recurrence, and drug resistance in various cancers, including pancreatic cancer. Pancreatic cancer stem cells (PaCSCs) are characterized by their high plasticity and self-renewal capacities that endow them with unique metabolic, metastatic, and chemoresistant properties. Understanding the exact molecular and signaling mechanisms that underlay malignant processes in PaCSCs is instrumental for developing novel therapeutic modalities that overcome the limitations of current therapeutic regimens. In this paper, we provide an updated review of the latest research in the field and summarize the current knowledge of PaCSCs characteristics, cellular metabolism, stemness, and drug resistance. We explore how the crosstalk between the TME and PaCSCs influences stemness. We also highlight some of the key signalling pathways involved in PaCSCs stemness and drug evasion. The aim of this review is to explore how PaCSCs develop, maintain their properties, and drive tumor relapse in PC. The last section explores some of the latest therapeutic strategies aimed at targeting PaCSCs.
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Affiliation(s)
- Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35201, USA.
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Tha Luong
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35201, USA
| | - Bassel F El-Rayes
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35201, USA.
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Muppala V, Farran B, Nagaraju GP. Pyroptosis-based nanotherapeutics: Possible mechanisms for cancer treatment. Life Sci 2022; 308:120970. [PMID: 36115581 DOI: 10.1016/j.lfs.2022.120970] [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] [Received: 08/09/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
Abstract
Pyroptosis represents an inflammatory cell death form induced by inflammasomes and performed by gasdermins. It is characterized by swelling, pore formation, release of cellular content and the activation of innate immunity leading to inflammation. Hence, pyroptosis contributes to inflammatory conditions like cancer and has emerged as a promising immuno-strategy for treating cancer. The advent of nanotechnology, which overlaps with the discovery of pyroptotic cell death, has enabled the development of nano-based pyroptosis inducing platforms aimed at overcoming resistance to apoptosis and enhancing tumor immunity. In this paper, we will describe the various molecular pathways underlying pyroptosis, such as canonical and non-canonical pyroptosis. We will then explore the advances in the field of pyroptosis-based nanotherapeutics and their future implications.
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Affiliation(s)
- Veda Muppala
- Department of Hematology and Oncology, Heersink School of Medicine, The University of Alabama, Birmingham, AL 35294, USA
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, The University of Alabama, Birmingham, AL 35294, USA.
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Farran B, Switchenko JM, Khalil L, Shaib WL, Olson B, Ruggieri A, Wu C, Alese OB, Diab M, Lesinski GB, El-Rayes B, Akce M. Abstract 3482: Correlative analysis of metformin and nivolumab combination in treatment-refractory microsatellite stable (MSS) metastatic colorectal cancer (mCRC). Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-3482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Preclinical results indicate that metformin can modulate immune cell populations in the tumor microenvironment of solid tumors by diminishing exhaustion of CD8+ tumor infiltrating cells and improving T cell responses. Studies also suggest that metformin could complement PD-1 blockade and potentiate its antitumor activity. Previously we reported the results of a phase II trial with metformin and nivolumab and here we report the findings of correlative analysis of the prospectively collected research samples of 18 patients.
Methods: We conducted a phase II trial with nivolumab and metformin in treatment-refractory microsatellite stable (MSS) metastatic colorectal cancer (mCRC). Nivolumab 480 mg IV every 4 weeks and metformin 1000 mg orally twice daily was administered in 28-day cycles following a 14-day metformin only lead-in phase. The primary endpoint was overall response rate (ORR). Secondary endpoints were overall survival (OS) and progression free survival (PFS). Pre-treatment and on-treatment research biopsies and correlative peripheral blood specimens were collected. Paired biopsies obtained at baseline and following treatment with metformin only (n=9) or metformin and nivolumab (n=9) and were stained with a panel of 13 markers using ChipCytometry technology by Canopy Biosciences. Sample was assessed prior to establishing the multiplex assay. 30 out of 36 samples were imaged and analyzed up to 30 Fields of View. Single cell recognition and quantitative biomarker analysis were performed to compare immune cell numbers and population distribution in pre- versus post-treatment samples.
Results: As previously reported, no patients had objective response based on RECIST version 1.1 and the study was stopped after the first stage for futility. Median OS and PFS was 5.1 months [95% CI (2-11.7)] and 2.3 months [95% CI (1.7-2.4)], respectively. Multiplex analysis of tissues from patients receiving lead in with metformin alone revealed fewer effector CD4 T cells and effector and effector memory CD8 T cells after treatment vs. baseline biopsy. Biopsy tissue from patients treated with metformin and nivolumab had lower pAMPK and decreased PDL-1 expression vs. baseline. The combination also increased percentages of leukocytes, effector CD4 T cells, effector and effector memory CD8 T cells as well as levels of PDL1-Tim3+ cells.
Conclusion: In the setting of MSS mCRC, metformin as a single agent did not enhance effector CD4 and CD8 T cell percentages in clinical samples in our patient cohort. Metformin in combination with nivolumab was associated with increased percentages of effector CD4 and CD8 T cells in biopsy specimens, although these improvements did not translate into enhanced clinical endpoints. Analysis of peripheral blood samples are currently underway to corroborate the findings in the tissue samples.
Citation Format: Batoul Farran, Jeffrey M. Switchenko, Lana Khalil, Walid L. Shaib, Brian Olson, Amanda Ruggieri, Christina Wu, Olatunji B. Alese, Maria Diab, Gregory B. Lesinski, Bassel El-Rayes, Mehmet Akce. Correlative analysis of metformin and nivolumab combination in treatment-refractory microsatellite stable (MSS) metastatic colorectal cancer (mCRC) [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 3482.
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Affiliation(s)
- Batoul Farran
- 1Winship Cancer Institute of Emory University, Atlanta, GA
| | | | | | - Walid L. Shaib
- 1Winship Cancer Institute of Emory University, Atlanta, GA
| | - Brian Olson
- 1Winship Cancer Institute of Emory University, Atlanta, GA
| | | | - Christina Wu
- 1Winship Cancer Institute of Emory University, Atlanta, GA
| | | | - Maria Diab
- 1Winship Cancer Institute of Emory University, Atlanta, GA
| | | | | | - Mehmet Akce
- 1Winship Cancer Institute of Emory University, Atlanta, GA
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Raju GSR, Pavitra E, Varaprasad GL, Bandaru SS, Nagaraju GP, Farran B, Huh YS, Han YK. Nanoparticles mediated tumor microenvironment modulation: current advances and applications. J Nanobiotechnology 2022; 20:274. [PMID: 35701781 PMCID: PMC9195263 DOI: 10.1186/s12951-022-01476-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 03/07/2022] [Accepted: 05/23/2022] [Indexed: 12/20/2022] Open
Abstract
The tumor microenvironment (TME) plays a key role in cancer development and emergence of drug resistance. TME modulation has recently garnered attention as a potential approach for reprogramming the TME and resensitizing resistant neoplastic niches to existing cancer therapies such as immunotherapy or chemotherapy. Nano-based solutions have important advantages over traditional platform and can be specifically targeted and delivered to desired sites. This review explores novel nano-based approaches aimed at targeting and reprogramming aberrant TME components such as macrophages, fibroblasts, tumor vasculature, hypoxia and ROS pathways. We also discuss how nanoplatforms can be combined with existing anti-tumor regimens such as radiotherapy, immunotherapy, phototherapy or chemotherapy to enhance clinical outcomes in solid tumors.
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Affiliation(s)
- Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea
| | - Ganji Lakshmi Varaprasad
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea
| | | | | | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea.
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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Ganji C, Farran B. Current clinical trials for epigenetic targets and therapeutic inhibitors for pancreatic cancer therapy. Drug Discov Today 2022; 27:1404-1410. [PMID: 34952224 DOI: 10.1016/j.drudis.2021.12.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 11/16/2021] [Revised: 12/08/2021] [Accepted: 12/17/2021] [Indexed: 02/06/2023]
Abstract
Pancreatic cancer (PC) is an aggressive disease characterized by high mortality. Diagnosis at advanced stage, resistance, and recurrence are major hurdles for PC therapy and contribute to poor survival rate. Mutations in tumor-promoting kinases and epigenetic dysregulation in tumor suppressor genes are hallmarks of PC and can be used for diagnosis and therapy. In this review, we highlight dysregulated genes associated with epigenetic mechanisms, including DNA methylation and histone acetylation, involved in PC progression and resistance. We also explore epigenetic drugs currently in clinical trials. Combining epigenetic drugs and targeted therapies might represent a promising approach for PC.
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Affiliation(s)
| | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.
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Malla RR, Farran B, Nagaraju GP. Understanding the function of the tumor microenvironment, and compounds from marine organisms for breast cancer therapy. World J Biol Chem 2021; 12:15-37. [PMID: 33815682 PMCID: PMC8006057 DOI: 10.4331/wjbc.v12.i2.15] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/13/2021] [Accepted: 02/21/2021] [Indexed: 02/06/2023] Open
Abstract
The pathology and physiology of breast cancer (BC), including metastasis, and drug resistance, is driven by multiple signaling pathways in the tumor microenvironment (TME), which hamper antitumor immunity. Recently, long non-coding RNAs have been reported to mediate pathophysiological develop-ments such as metastasis as well as immune suppression within the TME. Given the complex biology of BC, novel personalized therapeutic strategies that address its diverse pathophysiologies are needed to improve clinical outcomes. In this review, we describe the advances in the biology of breast neoplasia, including cellular and molecular biology, heterogeneity, and TME. We review the role of novel molecules such as long non-coding RNAs in the pathophysiology of BC. Finally, we provide an up-to-date overview of anticancer compounds extracted from marine microorganisms, crustaceans, and fishes and their synergistic effects in combination with other anticancer drugs. Marine compounds are a new discipline of research in BC and offer a wide range of anti-cancer effects that could be harnessed to target the various pathways involved in BC development, thus assisting current therapeutic regimens.
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Affiliation(s)
- Rama Rao Malla
- Department of Biochemistry and Bioinformatics, GITAM (Deemed to be University), Visakhapatnam 530045, AP, India
| | - Batoul Farran
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA 30322, United States
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States
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Farran B, Nagaraju GP. Exosomes as therapeutic solutions for pancreatic cancer. Drug Discov Today 2020; 25:2245-2256. [DOI: 10.1016/j.drudis.2020.09.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/18/2020] [Accepted: 09/30/2020] [Indexed: 02/06/2023]
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Nagaraju GP, Farran B, Farren M, Chalikonda G, Wu C, Lesinski GB, El-Rayes BF. Napabucasin (BBI 608), a potent chemoradiosensitizer in rectal cancer. Cancer 2020; 126:3360-3371. [PMID: 32383803 DOI: 10.1002/cncr.32954] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/12/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND The induction of reactive oxygen species (ROS) represents a viable strategy for enhancing the activity of radiotherapy. The authors hypothesized that napabucasin would increase ROS via its ability to inhibit NAD(P)H:quinone oxidoreductase 1 and potentiate the response to chemoradiotherapy in rectal cancer via distinct mechanisms. METHOD Proliferation studies, colony formation assays, and ROS levels were measured in HCT116 and HT29 cell lines treated with napabucasin, chemoradiation, or their combination. DNA damage (pγH2AX), activation of STAT, and downstream angiogenesis were evaluated in both untreated and treated cell lines. Finally, the effects of napabucasin, chemoradiotherapy, and their combination were assessed in vivo with subcutaneous mouse xenograft models. RESULTS Napabucasin significantly potentiated the growth inhibition of chemoradiation in both cell lines. Napabucasin increased ROS generation. Inhibition of ROS by N-acetylcysteine decreased the growth inhibitory effect of napabucasin alone and in combination with chemoradiotherapy. Napabucasin significantly increased pγH2AX in comparison with chemoradiotherapy alone. Napabucasin reduced the levels of pSTAT3 and VEGF and inhibited angiogenesis through an ROS-mediated effect. Napabucasin significantly potentiated the inhibition of growth and blood vessel formation by chemoradiotherapy in mouse xenografts. CONCLUSION Napabucasin is a radiosensitizer with a novel mechanism of action: increasing ROS production and inhibiting angiogenesis. Clinical trials testing the addition of napabucasin to chemoradiotherapy in rectal cancer are needed.
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Affiliation(s)
- Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Matthew Farren
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Gayathri Chalikonda
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Christina Wu
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Gregory B Lesinski
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Bassel F El-Rayes
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
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14
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Dariya B, Behera SK, Srivani G, Farran B, Alam A, Nagaraju GP. Computational analysis of nuclear factor-κB and resveratrol in colorectal cancer. J Biomol Struct Dyn 2020; 39:2914-2922. [PMID: 32306846 DOI: 10.1080/07391102.2020.1757511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 12/20/2022]
Abstract
Nuclear factor κB (NF-κB), a dimeric transcription factor, is a major regulator and an important determinant of the biological characteristics of tumour cells. Some antioxidants or protease inhibitors have been found to act against NF-κB to suppress colorectal cancer (CRC). In the current investigation, a computational study was performed to investigate the molecular interaction between NF-κB and resveratrol. Molecular docking studies revealed that, resveratrol with NF-κB are predicted to be quite effective. The application of molecular dynamics simulation (MDS) tactics has considerably supported in increasing the prediction precision of the outcomes. Further, this study revealed that NF-κB could be a potential target for various anti-cancerous drugs for cancer therapeutics. Furthermore, animal investigations are necessary to confirm the efficacy and evaluate potency of target and drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Begum Dariya
- Department of Bioscience and Biotechnology, Banasthali University, Vanasthali, India
| | - Santosh Kumar Behera
- Biomedical Informatics Centre, ICMR-Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - Gowru Srivani
- Department of Bioscience and Biotechnology, Banasthali University, Vanasthali, India
| | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Afroz Alam
- Department of Bioscience and Biotechnology, Banasthali University, Vanasthali, India
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15
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Verma HK, Farran B, Bhaskar LVKS. Convalescent plasma transfusion a promising therapy for coronavirus diseases 2019 (COVID-19): current updates. Antib Ther 2020; 3:115-125. [PMID: 33912791 PMCID: PMC7314270 DOI: 10.1093/abt/tbaa010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/21/2020] [Revised: 05/08/2020] [Accepted: 05/26/2020] [Indexed: 12/16/2022] Open
Abstract
While there is no proven treatment available for coronavirus disease 2019 (COVID-19), convalescent plasma (CP) may provide therapeutic relief as the number of cases escalate steeply world-wide. At the time of writing this review, vaccines, monoclonal antibodies or drugs are still lacking for the recent large COVID-19 outbreak, which restores the interest in CP as an empirical life-saving treatment. However, formal proof of efficacy is needed. The purpose of this review is to summarize all historical clinical trials on COVID-19 infected patients treated with CP to provide precise evidence for the efficacy and effectiveness of CP therapy in severe COVID-19 patients. Although there are many clinical trials in progress, high-quality clinical evidence is still lacking to analyze the existing problems. Meanwhile, based on the previous successful outcomes, we recommend healthcare systems to use CP therapy cautiously in critically ill COVID-19 patients.
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Affiliation(s)
- Henu Kumar Verma
- Stem Cell Lab Institute of Endocrinology and Oncology, Naples, 80131, Italy
| | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
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16
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Montenegro RC, Howarth A, Ceroni A, Fedele V, Farran B, Mesquita FP, Frejno M, Berger BT, Heinzlmeir S, Sailem HZ, Tesch R, Ebner D, Knapp S, Burbano R, Kuster B, Müller S. Identification of molecular targets for the targeted treatment of gastric cancer using dasatinib. Oncotarget 2020; 11:535-549. [PMID: 32082487 PMCID: PMC7007292 DOI: 10.18632/oncotarget.27462] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 11/16/2019] [Accepted: 01/13/2020] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer (GC) remains the third leading cause of cancer-related death despite several improvements in targeted therapy. There is therefore an urgent need to investigate new treatment strategies, including the identification of novel biomarkers for patient stratification. In this study, we evaluated the effect of FDA-approved kinase inhibitors on GC. Through a combination of cell growth, migration and invasion assays, we identified dasatinib as an efficient inhibitor of GC proliferation. Mass-spectrometry-based selectivity profiling and subsequent knockdown experiments identified members of the SRC family of kinases including SRC, FRK, LYN and YES, as well as other kinases such as DDR1, ABL2, SIK2, RIPK2, EPHA2, and EPHB2 as dasatinib targets. The expression levels of the identified kinases were investigated on RNA and protein level in 200 classified tumor samples from patients, who had undergone gastrectomy, but had received no treatment. Levels of FRK, DDR1 and SRC expression on both mRNA and protein level were significantly higher in metastatic patient samples regardless of the tumor stage, while expression levels of SIK2 correlated with tumor size. Collectively, our data suggest dasatinib for treatment of GC based on its unique property, inhibiting a small number of key kinases (SRC, FRK, DDR1 and SIK2), highly expressed in GC patients.
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Affiliation(s)
| | - Alison Howarth
- Novo Nordisk Research Centre Oxford (NNRCO), Discovery Technologies and Genomics, Oxford, UK
| | - Alessandro Ceroni
- Novo Nordisk Research Centre Oxford (NNRCO), Discovery Technologies and Genomics, Oxford, UK
| | - Vita Fedele
- Novo Nordisk Research Centre Oxford (NNRCO), Discovery Technologies and Genomics, Oxford, UK
| | - Batoul Farran
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Felipe Pantoja Mesquita
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, CE, Brazil
| | - Martin Frejno
- Chair of Proteomics and Bioanalytics, Technical University of Munich, Freising, Germany
| | - Benedict-Tilman Berger
- Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe-University Frankfurt, Frankfurt, Germany.,Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | - Stephanie Heinzlmeir
- Chair of Proteomics and Bioanalytics, Technical University of Munich, Freising, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Heba Z Sailem
- Institute of Biomedical Engineering, Department of Engineering, University of Oxford, Oxford, UK.,Big Data Institute, University of Oxford, Li Ka Shing Centre for Health Information and Discovery, Old Road Campus Research Building, Oxford, UK
| | - Roberta Tesch
- Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe-University Frankfurt, Frankfurt, Germany.,Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | - Daniel Ebner
- Novo Nordisk Research Centre Oxford (NNRCO), Discovery Technologies and Genomics, Oxford, UK
| | - Stefan Knapp
- Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe-University Frankfurt, Frankfurt, Germany.,Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany
| | | | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, Technical University of Munich, Freising, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.,Bavarian Center for Biomolecular Mass Spectrometry (BayBioMS), Technische Universität München, Freising, Germany
| | - Susanne Müller
- Structural Genomics Consortium, Buchmann Institute for Life Sciences, Goethe-University Frankfurt, Frankfurt, Germany
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17
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Shaib WL, Nagaraju GP, Farran B, Lesinski GB, El-Rayes BF. Interaction of heat shock protein 90 with hypoxia inducible factor and signal transducer and activator of transcription in colon cancer. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.07.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Farran B, Montenegro RC, Kasa P, Pavitra E, Huh YS, Han YK, Kamal MA, Nagaraju GP, Rama Raju GS. Folate-conjugated nanovehicles: Strategies for cancer therapy. Mater Sci Eng C Mater Biol Appl 2019; 107:110341. [PMID: 31761235 DOI: 10.1016/j.msec.2019.110341] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/02/2019] [Accepted: 10/19/2019] [Indexed: 02/06/2023]
Abstract
Cancer theranostics represents a strategy that aims at combining diagnosis with therapy through the simultaneous imaging and targeted delivery of therapeutics to cancer cells. Recently, the folate receptor alpha has emerged as an attractive theranostic target due to its overexpression in multiple solid tumors and its great functional versatility. In fact, it can be incorporated into folate-conjugated nano-systems for imaging and drug delivery. Hence, it can be used along the line of personalized clinical strategies as both an imaging tool and a delivery method ensuring the selective transport of treatments to tumor cells, thus highlighting its theranostic qualities. In this review, we will explore these theranostic characteristics in detail and assess their clinical potential. We will also discuss the technological advances that have allowed the design of sophisticated folate-based nanocarriers harboring various chemical properties and suited for the transport of various therapeutic agents.
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Affiliation(s)
- Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Raquel Carvalho Montenegro
- Biological Science Institute, Federal University of Para, Augusto Correa Avenue, 01 Guamá, Belém, Pará, Brazil
| | - Prameswari Kasa
- Dr. LV Prasad Diagnostics and Research Laboratory, Khairtabad, Hyderabad, AP, 500004, India
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon, 22212, Republic of Korea
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon, 22212, Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, P. O. Box 80216, Jeddah, 21589, Saudi Arabia; Enzymoics, 7 Peterlee Place, Hebersham, NSW, 2770, Australia; Novel Global Community Educational Foundation, Australia
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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19
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Farran B, Nagaraju GP. The dynamic interactions between the stroma, pancreatic stellate cells and pancreatic tumor development: Novel therapeutic targets. Cytokine Growth Factor Rev 2019; 48:11-23. [DOI: 10.1016/j.cytogfr.2019.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 02/06/2023]
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20
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Rajitha B, Malla RR, Vadde R, Kasa P, Prasad GLV, Farran B, Kumari S, Pavitra E, Kamal MA, Raju GSR, Peela S, Nagaraju GP. Horizons of nanotechnology applications in female specific cancers. Semin Cancer Biol 2019; 69:376-390. [PMID: 31301361 DOI: 10.1016/j.semcancer.2019.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/23/2019] [Accepted: 07/04/2019] [Indexed: 12/20/2022]
Abstract
Female-specific cancers are the most common cancers in women worldwide. Early detection methods remain unavailable for most of these cancers, signifying that most of them are diagnosed at later stages. Furthermore, current treatment options for most female-specific cancers are surgery, radiation and chemotherapy. Although important milestones in molecularly targeted approaches have been achieved lately, current therapeutic strategies for female-specific cancers remain limited, ineffective and plagued by the emergence of chemoresistance, which aggravates prognosis. Recently, the application of nanotechnology to the medical field has allowed the development of novel nano-based approaches for the management and treatment of cancers, including female-specific cancers. These approaches promise to improve patient survival rates by reducing side effects, enabling selective delivery of drugs to tumor tissues and enhancing the uptake of therapeutic compounds, thus increasing anti-tumor activity. In this review, we focus on the application of nano-based technologies to the design of novel and innovative diagnostic and therapeutic strategies in the context of female-specific cancers, highlighting their potential uses and limitations.
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Affiliation(s)
- Balney Rajitha
- Department of Pathology, WellStar Hospital, Marietta, GA, 30060, USA
| | - Rama Rao Malla
- Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, AP, 530045, India
| | - Ramakrishna Vadde
- Department of Biotechnology and Bioinformatics, Yogi Vemana University, Kadapa, AP, 516003, India
| | - Prameswari Kasa
- Dr. LV Prasad Diagnostics and Research Laboratory, Khairtabad, Hyderabad, TS, 500004, India
| | | | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Seema Kumari
- Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, AP, 530045, India
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon 22212, Republic of Korea
| | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, P. O. Box 80216, Jeddah 21589, Saudi Arabia; Enzymoics, 7 Peterlee Place, Hebersham, NSW 2770, Australia; Novel Global Community Educational Foundation, Australia
| | - Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Sujatha Peela
- Department of Biotechnology, Dr. B.R. Ambedkar University, Srikakulam, AP, 532410, India
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
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Nagaraju GP, Farren MR, Govardhanagiri S, Bethi SR, Farran B, Lesinski GB, El-Rayes BF. Abstract 354: BBI-608 modulates stemness, angiogenesis and enhances the efficacy of chemoradiotherapy in pre-clinical models of pancreatic cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The transcription factor signal transducer and activator of transcription 3 (STAT-3) is constitutively activated in pancreatic ductal adenocarcinoma (PDAC) and signaling via this pathway regulates a diverse set of cellular processes including stemness, angiogenesis and sensitization to chemo or radiotherapy. Given the potential for BBI608 to elicit effects on multiple oncogenic cellular pathways including STAT-3, we hypothesized that BBI608 can sensitize pancreatic cell lines to the effects of 5FU and ionizing radiation.
Methods: The combined effects of BBI-608 and chemoradiotherapy (5-FU + IR) were evaluated in human (MIA PaCa-2, PANC-1) and murine (PANC-02) PDAC cell lines using a clonogenic assay. Effects on the expression of cell surface markers associated with stemness (EGFR, CD24, and CD44) in MIA PaCa-2 cell lines in vitroand in vivo were examined by flow cytometry. Modulation of pSTAT3 and VEGF, key pro-angiogenic factors, were studied via Western blot. Using media from MIA PaCa-2 and PANC-1 cell lines following treatment, egg CAM assays were also performed to evaluate the effects of the tested drugs on angiogenesis (quantification was performed by AngioQuant software). The MIA PaCa-2 cell line was tested for activity to BBI-608, 5-FU + IR, alone and in combination, using an in vivo tumor xenograft model.
Results: The combination of BBI-608 and chemoradiotherapy significantly (p<0.001) decreased colony formation, stemness and angiogenesis in PDAC cell lines as compared to chemoradiotherapy alone. BBI-608 and chemoradiotherapy also decreased pSTAT-3 and VEGF expression. Flow cytometric analysis revealed that combined treatment of MIA PaCa-2 cell lines with BBI-608 and chemoradiotherapy significantly (p<0.001) reduced the expression of stemness markers (EGFR, CD44 and CD24) in vitro and in vivo. In animal models (MIA PaCa-2), BBI-608 potentiated the effects of chemoradiotherapy, as measured by tumor volume. There was no evidence of systemic toxicity or loss of body weight in any of the treatment groups, indicating the combination was well-tolerated. Matrigel plug implantation results revealed that BBI-608 and chemoradiotherapy significantly (p<0.0001) decreased blood vessel formation as compared to chemoradiotherapy alone, with similar results seen in the egg CAM assay.
Conclusion: These observations provide preclinical proof-of-principle that combinatorial BBI-608 and chemoradiotherapy could be a promising therapeutic strategy for PDAC.
Citation Format: Ganji Purnachandra Nagaraju, Matthew R. Farren, Sneha Govardhanagiri, Shipra Reddy Bethi, Batoul Farran, Gregory B. Lesinski, Bassel F. El-Rayes. BBI-608 modulates stemness, angiogenesis and enhances the efficacy of chemoradiotherapy in pre-clinical models of pancreatic cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 354.
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Farran B, Nagaraju GP, Shipra SG, Bethi SR, Lesinski GB, El-Rayes B. Abstract 713: BBI-608 modulates DNA repair pathways, induces apoptosis and impacts response to 5-Fluorouracil and ionizing radiation in pancreatic cancer cells. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: BBI-608 has been shown to modulate multiple oncogenic cellular pathways which are often constitutively active in pancreatic ductal adenocarcinoma (PDAC). Among these are key mediators of DNA repair and cellular survival pathways. We hypothesized that BBI-608 would sensitize PDAC cells to chemoradiotherapy.
Methods: The combined effects of BBI-608 and chemoradiotherapy (5-FU + IR) were evaluated in human (MIA PaCa-2) and murine (PANC-02) PDAC cell lines using a Br-dU cell proliferation assay. To elucidate the mechanism of action, effects on the expression of DNA damage and repair (pATM, γ-H2AX, p53; pATR, and Rad51) molecules were examined by Western blot. Apoptosis was assessed via Annexin V staining and flow cytometric analysis to evaluate mechanism of cell death following treatment of MIA PaCa-2 and PANC-02 cell lines. The in vivo activity of BBI-608, 5-FU + IR, alone and in combination, were evaluated in C57BL/6 mice bearing subcutaneous PANC-02 tumors.
Results: The combination of BBI-608 and chemoradiotherapy significantly decreased (p<0.001) cell proliferation and induced Annexin V positive cells in both MIA PaCa-2 and PANC-02 cell lines. BBI-608 and chemoradiotherapy also decreased the activation of pATR, MDM2, and Rad51 and increased pATM, γ-H2AX and p53. Administration of BBI-608 potentiated the effects of chemoradiotherapy in vivo in mice bearing subcutaneous PANC-02 tumors as measured by tumor volume.
Conclusion: These data identify a role for BBI-608 as a modulator of DNA damage and apoptosis. These effects enhanced the efficacy of chemoradiotherapy in cell lines and in vivo models of PDAC and provide rationale for continued investigation in the pre-clinical and clinical setting.
Note: This abstract was not presented at the meeting.
Citation Format: Batoul Farran, Ganji P. Nagaraju, Sneha G. Shipra, Shipra R. Bethi, Gregory B. Lesinski, Bassel El-Rayes. BBI-608 modulates DNA repair pathways, induces apoptosis and impacts response to 5-Fluorouracil and ionizing radiation in pancreatic cancer cells [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 713.
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Lakkakula BVKS, Farran B, Lakkakula S, Peela S, Yarla NS, Bramhachari PV, Kamal MA, Saddala MS, Nagaraju GP. Small molecule tyrosine kinase inhibitors and pancreatic cancer—Trials and troubles. Semin Cancer Biol 2019; 56:149-167. [DOI: 10.1016/j.semcancer.2018.09.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/18/2018] [Accepted: 09/29/2018] [Indexed: 12/20/2022]
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Kasa P, Farran B, Prasad GLV, Nagaraju GP. Aquaporins in female specific cancers. Gene 2019; 700:60-64. [DOI: 10.1016/j.gene.2019.03.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/04/2019] [Accepted: 03/17/2019] [Indexed: 01/22/2023]
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Mukund V, Saddala MS, Farran B, Mannavarapu M, Alam A, Nagaraju GP. Molecular docking studies of angiogenesis target protein HIF-1α and genistein in breast cancer. Gene 2019; 701:169-172. [DOI: 10.1016/j.gene.2019.03.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/04/2019] [Accepted: 03/27/2019] [Indexed: 01/15/2023]
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26
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Farran B, Albayrak S, Abrams J, Tainsky MA, Levin NK, Morris R, Matherly LH, Ratnam M, Winer I. Serum folate receptor α (sFR) in ovarian cancer diagnosis and surveillance. Cancer Med 2019. [PMID: 30761774 DOI: 10.1002/cam4.1944] [] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Novelty and Impact Statement: Our findings suggest that soluble folate receptor (sFR) could be used in both the initial diagnosis and surveillance of patients with ovarian cancer. Our cohort constitutes one of the largest comparison groups for sFR analyzed so far. We have defined the background level of sFR using healthy volunteers. This is also the first study to prospectively follow patients in the surveillance setting to concurrently identify differential changes in tumor markers CA-125 and sFR.
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Affiliation(s)
- Batoul Farran
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Samet Albayrak
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan
| | - Judith Abrams
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Michael A Tainsky
- Department of Oncology, Wayne State University and Karmanos Cancer Institute and Center for Molecular Medicine and Genetics, Detroit, Michigan
| | - Nancy K Levin
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Robert Morris
- Department of Oncology, Division of Gynecologic Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Larry H Matherly
- Departments of Oncology and Pharmacology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Manohar Ratnam
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Ira Winer
- Department of Oncology, Division of Gynecologic Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
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Farran B, Albayrak S, Abrams J, Tainsky MA, Levin NK, Morris R, Matherly LH, Ratnam M, Winer I. Serum folate receptor α (sFR) in ovarian cancer diagnosis and surveillance. Cancer Med 2019. [PMID: 30761774 DOI: 10.1002/cam4.1944]+[] [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: 11/09/2022] Open
Abstract
Novelty and Impact Statement: Our findings suggest that soluble folate receptor (sFR) could be used in both the initial diagnosis and surveillance of patients with ovarian cancer. Our cohort constitutes one of the largest comparison groups for sFR analyzed so far. We have defined the background level of sFR using healthy volunteers. This is also the first study to prospectively follow patients in the surveillance setting to concurrently identify differential changes in tumor markers CA-125 and sFR.
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Affiliation(s)
- Batoul Farran
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Samet Albayrak
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan
| | - Judith Abrams
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Michael A Tainsky
- Department of Oncology, Wayne State University and Karmanos Cancer Institute and Center for Molecular Medicine and Genetics, Detroit, Michigan
| | - Nancy K Levin
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Robert Morris
- Department of Oncology, Division of Gynecologic Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Larry H Matherly
- Departments of Oncology and Pharmacology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Manohar Ratnam
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
| | - Ira Winer
- Department of Oncology, Division of Gynecologic Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, Michigan
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Farran B, Albayrak S, Abrams J, Tainsky MA, Levin NK, Morris R, Matherly LH, Ratnam M, Winer I. Serum folate receptor α (sFR) in ovarian cancer diagnosis and surveillance. Cancer Med 2019; 8:920-927. [PMID: 30761774 PMCID: PMC6434204 DOI: 10.1002/cam4.1944] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 12/20/2022] Open
Abstract
Novelty and Impact Statement: Our findings suggest that soluble folate receptor (sFR) could be used in both the initial diagnosis and surveillance of patients with ovarian cancer. Our cohort constitutes one of the largest comparison groups for sFR analyzed so far. We have defined the background level of sFR using healthy volunteers. This is also the first study to prospectively follow patients in the surveillance setting to concurrently identify differential changes in tumor markers CA‐125 and sFR.
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Affiliation(s)
- Batoul Farran
- Department of OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Samet Albayrak
- Department of Obstetrics and GynecologyWayne State UniversityDetroitMichigan
| | - Judith Abrams
- Department of OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Michael A. Tainsky
- Department of OncologyWayne State University and Karmanos Cancer Institute and Center for Molecular Medicine and GeneticsDetroitMichigan
| | - Nancy K. Levin
- Department of OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Robert Morris
- Department of Oncology, Division of Gynecologic OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Larry H. Matherly
- Departments of Oncology and PharmacologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Manohar Ratnam
- Department of OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
| | - Ira Winer
- Department of Oncology, Division of Gynecologic OncologyWayne State University and Karmanos Cancer InstituteDetroitMichigan
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Farran B, Pavitra E, Kasa P, Peela S, Rama Raju GS, Nagaraju GP. Folate-targeted immunotherapies: Passive and active strategies for cancer. Cytokine Growth Factor Rev 2019; 45:45-52. [PMID: 30770191 DOI: 10.1016/j.cytogfr.2019.02.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 01/24/2019] [Accepted: 02/04/2019] [Indexed: 01/23/2023]
Abstract
The glycoprotein FRα is a membrane-attached transport protein that is shielded from the immune system in healthy cells. However, it is upregulated in various malignancies, involved in cancer development and is also immunogenic. Furthermore, FRα is a tumor-associated antigen endowed with unique properties, thus rendering it a suitable target for immunotherapeutic development in cancer. Various anti- FRα immunotherapeutic strategies are thus currently being developed and clinically assessed for the treatment of various solid tumors. These approaches include passive anti-FRα immunotherapies, such as monoclonal antibodies, or active immunotherapies, such as CART, folate haptens and vaccines. In this review, we will explore the advances in the field of FRα-based immune therapies and discuss both their successes and shortcomings in the clinical setting.
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Affiliation(s)
- Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon, 22212, Republic of Korea
| | - Prameswari Kasa
- Dr. LV Prasad Diagnostics and Research Laboratory, Khairtabad, Hyderabad, 500004, India
| | - Sujatha Peela
- Department of Biotechnology, Dr. B.R. Ambedkar University, Srikakulam, Andhra Pradesh, 532410, India
| | - Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
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30
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Farran B, Dyson G, Craig D, Dombkowski A, Beebe-Dimmer JL, Powell IJ, Podgorski I, Heilbrun L, Bolton S, Bock CH. A study of circulating microRNAs identifies a new potential biomarker panel to distinguish aggressive prostate cancer. Carcinogenesis 2018; 39:556-561. [PMID: 29471417 DOI: 10.1093/carcin/bgy025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 02/12/2018] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer is one of the most common cancers in men worldwide. Currently available diagnostic and prognostic tools for this disease, such as prostate specific antigen, suffer from lack of specificity and sensitivity, resulting in over- and misdiagnosis. Hence, there is an urgent need for clinically relevant biomarkers capable of distinguishing between aggressive and nonaggressive forms of prostate cancer to aid in stratification, management and therapeutic decisions. To address this unmet need, we investigated the patterns of expression of a panel of 68 plasma-derived microRNAs (miRNAs) in a cohort of African American (AA) and European American (EA) prostate cancer patients (n = 114). miRNA qPCR results were analyzed using in-depth statistical methods, and a bioinformatics analysis was conducted to identify potential targets of the differentially expressed miRNAs. Our data demonstrate that a new previously unreported circulating miRNA signature consisting of a combination of interacting miRNAs (miR-17/miR-192) and an independent miRNA (miR-181a) are capable of segregating aggressive and nonaggressive prostate cancer in both AA and EA patients. The interacting miRNAs outperformed independent miRNAs in identifying aggressiveness. Our results suggest that these circulating miRNAs may constitute novel biomarkers of prostate cancer aggressiveness in both races and warrant further investigation.
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Affiliation(s)
- Batoul Farran
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Gregory Dyson
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Douglas Craig
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Alan Dombkowski
- Department of Pediatrics, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jennifer L Beebe-Dimmer
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Isaac J Powell
- Department of Urology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Izabela Podgorski
- Department of Pharmacology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Lance Heilbrun
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Susan Bolton
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - Cathryn H Bock
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
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Dyson G, Farran B, Bolton S, Craig DB, Dombkowski A, Beebe-Dimmer JL, Powell IJ, Podgorski I, Heilbrun LK, Bock CH. The extrema of circulating miR-17 are identified as biomarkers for aggressive prostate cancer. Am J Cancer Res 2018; 8:2088-2095. [PMID: 30416858 PMCID: PMC6220145] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 06/03/2018] [Indexed: 06/09/2023] Open
Abstract
MicroRNAs (miRNAs) constitute short non-coding RNAs that can post-transcriptionally modulate the expression of many oncogenes and tumor suppressor genes engaged in key cellular processes. Deregulated serum miRNA signatures have been detected in various solid cancers including prostate cancer, suggesting that circulating miRNAs could function as non-invasive biomarkers of tumor emergence and progression. To determine whether serum miRNA expression levels are different between patients with aggressive and non-aggressive prostate cancer, we analyzed a panel of miRNAs from the blood of African American (AA) prostate cancer patients using a new recursive partitioning method that allows hypothesis testing of each split. We observed that both extrema of circulating miR-17, i.e. upregulation and downregulation, are associated with aggressive prostate cancer. A similar effect was observed in tumor samples from a separate dataset representing a different population of prostate cancer patients and in AA prostate cancer samples from the TCGA. The dual effect is consistent with the contradictory findings on the role of miR-17 in prostate cancer progression, whereby it controls important oncogenic and tumor-suppressive genes.
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Affiliation(s)
- Greg Dyson
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
| | - Batoul Farran
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
| | - Susan Bolton
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
| | - Douglas B Craig
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
| | - Alan Dombkowski
- Karmanos Cancer Institute and Department of Pediatrics, Wayne State UniversityDetroit MI, USA
| | | | - Isaac J Powell
- Karmanos Cancer Institute and Department of Urology, Wayne State UniversityDetroit MI, USA
| | - Izabela Podgorski
- Karmanos Cancer Institute and Department of Pharmacology, Wayne State UniversityDetroit MI, USA
| | - Lance K Heilbrun
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
| | - Cathryn H Bock
- Karmanos Cancer Institute and Department of Oncology, Wayne State UniversityDetroit MI, USA
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Read SH, McAllister DA, Colhoun HM, Farran B, Fischbacher C, Kerssens JJ, Leese GP, Lindsay RS, McCrimmon RJ, McGurnaghan S, Philip S, Sattar N, Wild SH. Incident ischaemic stroke and Type 2 diabetes: trends in incidence and case fatality in Scotland 2004-2013. Diabet Med 2018; 35:99-106. [PMID: 29044687 DOI: 10.1111/dme.13528] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 11/27/2022]
Abstract
AIM To describe trends in first ischaemic stroke incidence and case fatality in adults with and without a diagnosis of Type 2 diabetes prior to their ischaemic stroke event in Scotland between 2004 and 2013. METHODS Using population-wide hospital admission, death and diabetes datasets, we conducted a retrospective cohort study. Negative binomial and logistic regression models were used to calculate year-specific incidence and case-fatality rates for people with Type 2 diabetes and for people without diabetes. RESULTS During 41.0 million person-years of follow-up there were 69 757 ischaemic stroke events. Type 2 diabetes prevalence among patients who experienced ischaemic stroke increased from 13.5% to 20.3% between 2004 and 2013. Stroke incidence rates declined by 2.7% (95% CI 2.4, 3.0) annually for people with and without diabetes [diabetes/year interaction: rate ratio 0.99 (95% CI 0.98, 1.01)]. Type 2 diabetes was associated with an increased risk of ischaemic stroke in men [rate ratio 1.23 (95% CI 1.17, 1.30)] and women [rate ratio 1.41 (95% CI 1.35, 1.48)]. Case-fatality rates were 14.2% and 12.7% in people with Type 2 diabetes and without diabetes, respectively. Case fatality declined by 3.5% (95% CI 2.7, 4.5) annually [diabetes/year interaction: odds ratio 1.01 (95% CI 0.98, 1.02)]. CONCLUSIONS Ischaemic stroke incidence declined no faster in people with a diagnosis of Type 2 diabetes than in people without diabetes. Increasing prevalence of Type 2 diabetes among stroke patients may mean that declines in case fatality over time will be less marked in the future.
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Affiliation(s)
- S H Read
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - D A McAllister
- Institutes of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - H M Colhoun
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - B Farran
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - C Fischbacher
- Information Services Division, NHS National Services, Edinburgh, UK
| | - J J Kerssens
- Information Services Division, NHS National Services, Edinburgh, UK
| | - G P Leese
- Department of Diabetes and Endocrinology, University of Dundee, Dundee, UK
| | - R S Lindsay
- Institutes of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - R J McCrimmon
- Division of Molecular and Clinical Medicine, University of Dundee, Dundee, UK
| | - S McGurnaghan
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - S Philip
- Department of Diabetes and Endocrinology, NHS Grampian, Aberdeen, UK
| | - N Sattar
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
| | - S H Wild
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
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Farran B, Müller S, Montenegro RC. Gastric cancer management: Kinases as a target therapy. Clin Exp Pharmacol Physiol 2018; 44:613-622. [PMID: 28271563 DOI: 10.1111/1440-1681.12743] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/19/2017] [Accepted: 02/20/2017] [Indexed: 12/16/2022]
Abstract
The molecular diagnostics revolution has reshaped the practice of oncology by facilitating the identification of genetic, epigenetic and proteomic modifications correlated with cancer, thus delineating 'oncomaps' for various cancer types. These advances have enhanced our understanding of gastric cancer, one of the most fatal diseases worldwide, and culminated in the approval of novel molecular therapies such as trastuzumab. Gastric tumours display recurrent aberrations in key kinase oncogenes such as Her2, epidermal growth factor receptor (EGFR), PI3K, mTOR or c-Met, suggesting that these receptors are amenable to inhibition using specific drug agents. In this review, we examine the mutational landscape of gastric cancer, the use of kinase inhibitors as targeted therapies in gastric tumours and the clinical trials underway for novel inhibitors, highlighting successes, failures and future directions.
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Affiliation(s)
- Batoul Farran
- Department of Structural and Molecular Biology, University College London, London, UK
| | - Susanne Müller
- Buchmann Institute for Molecular Life Sciences, Johann Wolfgang Goethe-University, Frankfurt am Main, DE, Germany
| | - Raquel C Montenegro
- Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
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Abstract
The traditional view on GPCRs held that they function as single monomeric units composed of identical subunits. This notion was overturned by the discovery that GPCRs can form homo- and hetero-oligomers, some of which are obligatory, and can further assemble into receptor mosaics consisting of three or more protomers. Oligomerisation exerts significant impacts on receptor function and physiology, offering a platform for the diversification of receptor signalling, pharmacology, regulation, crosstalk, internalization and trafficking. Given their involvement in the modulation of crucial physiological processes, heteromers could constitute important therapeutic targets for a wide range of diseases, including schizophrenia, Parkinson's disease, substance abuse or obesity. This review aims at depicting the current developments in GPCR oligomerisation research, documenting various class A, B and C GPCR heteromers detected in vitro and in vivo using biochemical and biophysical approaches, as well as recently identified higher-order oligomeric complexes. It explores the current understanding of dimerization dynamics and the possible interaction interfaces that drive oligomerisation. Most importantly, it provides an inventory of the wide range of physiological processes and pathophysiological conditions to which GPCR oligomers contribute, surveying some of the oligomers that constitute potential drug targets. Finally, it delineates the efforts to develop novel classes of ligands that specifically target and tether to receptor oligomers instead of a single monomeric entity, thus ameliorating their ability to modulate GPCR function.
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Affiliation(s)
- Batoul Farran
- Department of Structural and Molecular Biology, University College London, Gower Street, London, WC1E 6BT, United Kingdom.
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