1
|
Thiruppathi J, Vijayan V, Park IK, Lee SE, Rhee JH. Enhancing cancer immunotherapy with photodynamic therapy and nanoparticle: making tumor microenvironment hotter to make immunotherapeutic work better. Front Immunol 2024; 15:1375767. [PMID: 38646546 PMCID: PMC11026591 DOI: 10.3389/fimmu.2024.1375767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Cancer immunotherapy has made tremendous advancements in treating various malignancies. The biggest hurdle to successful immunotherapy would be the immunosuppressive tumor microenvironment (TME) and low immunogenicity of cancer cells. To make immunotherapy successful, the 'cold' TME must be converted to 'hot' immunostimulatory status to activate residual host immune responses. To this end, the immunosuppressive equilibrium in TME should be broken, and immunogenic cancer cell death ought to be induced to stimulate tumor-killing immune cells appropriately. Photodynamic therapy (PDT) is an efficient way of inducing immunogenic cell death (ICD) of cancer cells and disrupting immune-restrictive tumor tissues. PDT would trigger a chain reaction that would make the TME 'hot' and have ICD-induced tumor antigens presented to immune cells. In principle, the strategic combination of PDT and immunotherapy would synergize to enhance therapeutic outcomes in many intractable tumors. Novel technologies employing nanocarriers were developed to deliver photosensitizers and immunotherapeutic to TME efficiently. New-generation nanomedicines have been developed for PDT immunotherapy in recent years, which will accelerate clinical applications.
Collapse
Affiliation(s)
- Jayalakshmi Thiruppathi
- Department of Microbiology, Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
- Clinical Vaccine R&D Center, Chonnam National University, Hwasun-gun, Jeonnam, Republic of Korea
- Combinatorial Tumor Immunotherapy Medical Research Center (MRC), Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
- National Immunotherapy Innovation Center, Hwasun-gun, Jeonnam, Republic of Korea
| | - Veena Vijayan
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
| | - In-Kyu Park
- National Immunotherapy Innovation Center, Hwasun-gun, Jeonnam, Republic of Korea
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
- Department of Radiology, Biomolecular Theranostics (BiT) Laboratory, Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
| | - Shee Eun Lee
- Clinical Vaccine R&D Center, Chonnam National University, Hwasun-gun, Jeonnam, Republic of Korea
- National Immunotherapy Innovation Center, Hwasun-gun, Jeonnam, Republic of Korea
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Joon Haeng Rhee
- Department of Microbiology, Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
- Clinical Vaccine R&D Center, Chonnam National University, Hwasun-gun, Jeonnam, Republic of Korea
- Combinatorial Tumor Immunotherapy Medical Research Center (MRC), Chonnam National University Medical School, Hwasun-gun, Jeonnam, Republic of Korea
- National Immunotherapy Innovation Center, Hwasun-gun, Jeonnam, Republic of Korea
| |
Collapse
|
2
|
Ying J, Hong H, Yu C, Jiang M, Ding D. Identification of TLRs as potential prognostic biomarkers for lung adenocarcinoma. Medicine (Baltimore) 2023; 102:e34954. [PMID: 37746997 PMCID: PMC10519552 DOI: 10.1097/md.0000000000034954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 09/26/2023] Open
Abstract
Lung adenocarcinoma (LUAD) is one of the most common tumors with the highest cancer-related death rate worldwide. Early diagnosis of LUAD can improve survival. Abnormal expression of the Toll-like receptors (TLRs) is related to tumorigenesis and development, inflammation and immune infiltration. However, the role of TLRs as an immunotherapy target and prognostic marker in lung adenocarcinoma is not well understood and needs to be analyzed. Relevant data obtained from databases such as ONCOMINE, UALCAN, GEPIA, and the Kaplan-Meier plotter, GSCALite, GeneMANIA, DAVID 6.8, Metascape, LinkedOmics and TIMER, to compare transcriptional TLRs and survival data of patients with LUAD. The expression levels of TLR1/2/3/4/5/7/8 in LUAD tissues were significantly reduced while the expression levels of TLR6/9/10 were significantly elevated. LUAD patients having low expression of TLR1/2/3/5/8 and high expression of TLR9 had a poor overall survival while patients with low expression of TLR2/3/7 presented with worse first progress. TLR4, TLR7 and TLR8 are the 3 most frequently mutated genes in the TLR family. Correlation suggested a low to moderate correlation among TLR family. TLR family was also involved in the activation or inhibition of the famous cancer related pathways. Analysis of immune infiltrates analysis suggested that TLR1/2/7/8 levels significantly correlated with immune infiltration level. Enrichment analysis revealed that TLRs were involved in TLR signaling pathway, immune response, inflammatory response, primary immunodeficiency, regulation of IL-8 production and PI3K-Akt signaling pathway. Our results provided information on TLRs expression and potential regulatory networks in LUAD. Moreover, our results suggested TLR2/7/8 as a potential prognostic biomarker for lung adenocarcinoma.
Collapse
Affiliation(s)
- Junjie Ying
- Department of Thoracic Surgery, The People’s Hospital of Beilun District, Ningbo, China
| | - Haihua Hong
- Department of Respiratory Medicine, The People’s Hospital of Beilun District, Ningbo, China
| | - Chaoqun Yu
- Department of General Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Maofen Jiang
- Department of Pathology, The People’s Hospital of Beilun District, Ningbo, China
| | - Dongxiao Ding
- Department of Thoracic Surgery, The People’s Hospital of Beilun District, Ningbo, China
| |
Collapse
|
3
|
Emerging photodynamic nanotherapeutics for inducing immunogenic cell death and potentiating cancer immunotherapy. Biomaterials 2022; 282:121433. [DOI: 10.1016/j.biomaterials.2022.121433] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/21/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022]
|
4
|
Haddoub C, Rima M, Heurtebise S, Lawand M, Jundi D, Sadek R, Amigorena S, Fajloun Z, Karam MC. Cytotoxic effect of Montivipera bornmuelleri's venom on cancer cell lines: in vitro and in vivo studies. PeerJ 2020; 8:e9909. [PMID: 33194364 PMCID: PMC7597635 DOI: 10.7717/peerj.9909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/18/2020] [Indexed: 11/26/2022] Open
Abstract
Background Montivipera bornmuelleri’s venom has shown immunomodulation of cytokines release in mice and selective cytotoxicity on cancer cells in a dose-dependent manner, highlighting an anticancer potential. Here, we extend these findings by elucidating the sensitivity of murine B16 skin melanoma and 3-MCA-induced murine fibrosarcoma cell lines to M. bornmuelleri’s venom and its effect on tumor growth in vivo. Methods The toxicity of the venom on B16 and MCA cells was assessed using flow cytometry and xCELLigence assays. For in vivo testing, tumor growth was followed in mice after intratumoral venom injection. Results The venom toxicity showed a dose-dependent cell death on both B16 and MCA cells. Interestingly, overexpression of ovalbumin increased the sensitivity of the cells to the venom. However, the venom was not able to eradicate induced-tumor growth when injected at 100 µg/kg. Our study demonstrates a cytotoxic effect of M. bornmuelleri’s venom in vitro which, however, does not translate to an anticancer action in vivo.
Collapse
Affiliation(s)
- Carol Haddoub
- Department of Biology, University of Balamand, Kalhat, Al-Kurah, Lebanon
| | - Mohamad Rima
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM, CNRS, University of Strasbourg, Strasbourg, France
| | | | - Myriam Lawand
- Institut Curie, INSERM U932, PSL Research University, Paris, France
| | - Dania Jundi
- LAB3B, Doctoral School for Sciences and Technology, Azm Centre for Research in Biotechnology, Lebanese University, Tripoli, Lebanon.,Department of Neuroscience, Institute of Biology Paris-Seine (IBPS), INSERM, CNRS, Université Sorbonne-Nouvelle (Paris III), Paris, France
| | - Riyad Sadek
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | | | - Ziad Fajloun
- LAB3B, Doctoral School for Sciences and Technology, Azm Centre for Research in Biotechnology, Lebanese University, Tripoli, Lebanon.,Faculty of Sciences 3, Michel Slayman Tripoli Campus, Lebanese University, Tripoli, Lebanon
| | - Marc C Karam
- Department of Biology, University of Balamand, Kalhat, Al-Kurah, Lebanon
| |
Collapse
|
5
|
Spadaro A, Basile L, Pappalardo M, Bonaccorso C, Rao M, Ronsisvalle S, Granata G, Guccione S. Quantum Chemical and Molecular Dynamics Studies of MUC1 Calix[4,8]arene Scaffold Based Anticancer Vaccine Candidates. J Chem Inf Model 2020; 60:5162-5171. [PMID: 32818373 DOI: 10.1021/acs.jcim.9b00989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Functional antitumor vaccine constructs are the basis for active tumor immunotherapy, which is useful in the treatment of many types of cancers. MUC1 is one key glycoprotein for targeting and designing new strategies for multicomponent vaccines. Two self-adjuvant tetravalent vaccine candidates were prepared by clustering four or eight PDTRP MUC1 core epitope sequences on calixarene scaffolds. In this work, the different activities of two molecules with calix[4]arene and calix[8]arene skeleton are rationalized. Quantum mechanics, docking, and molecular dynamics structural optimization were first carried out followed by metadynamics to calculate the energy profiles. Further insights were obtained by complementarity studies of molecular fields. The molecular modeling results are in strong agreement with the experimental in vivo immunogenicity data. In conclusion, the overall data shows that, in the designing of anticancer vaccines, scaffold flexibility has a pivotal role in obtaining a suitable electrostatic, hydrophobic, and steric complementarity with the biological target.
Collapse
Affiliation(s)
- Angelo Spadaro
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Livia Basile
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Matteo Pappalardo
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Carmela Bonaccorso
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Marco Rao
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Simone Ronsisvalle
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Giuseppe Granata
- Institute of Biomolecular Chemistry, CNR, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Salvatore Guccione
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, I-95125 Catania, Italy
| |
Collapse
|
6
|
Abstract
Immunotherapy is now the fourth pillar of cancer therapy, with surgery, radiation, and traditional chemotherapy being the remaining pillars. Over the past decade, enthusiasm for immunotherapy has increased because of, in part, data showing that it consistently improves overall survival in select patients with historically refractory cancers. This issue covers various aspects of immunotherapy ranging from use of 1) chimeric antigen receptor (CAR) T cells to treat patients with B-cell acute lymphoblastic leukemia; 2) population pharmacokinetic/dynamic modeling to develop new immune checkpoint inhibitors; and 3) simulations of existing population pharmacokinetic models of immunotherapy to minimize waste without compromising exposure and efficacy.
Collapse
|
7
|
Baldo P, Fornasier G, Ciolfi L, Sartor I, Francescon S. Pharmacovigilance in oncology. Int J Clin Pharm 2018; 40:832-841. [PMID: 30069667 PMCID: PMC6132974 DOI: 10.1007/s11096-018-0706-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/26/2018] [Indexed: 12/31/2022]
Abstract
Background Side effects of cancer therapy are one of the most important issues faced by cancer patients during their illness. Pharmacovigilance, namely the science and activities aimed at monitoring the safety of drugs, is particularly important in oncology, due to the intrinsic biologic toxicity of antineoplastic agents, their narrow therapeutic windows, and the high doses and rigid timing of treatment regimens. Aim of the review To identify the main issues in carrying out an effective pharmacovigilance activity in oncology. Method We searched PubMed for articles about pharmacovigilance in relation to chemotherapy, radiotherapy and targeted therapy for cancer, using MeSH terms and text words. We also searched Embase, CINAHL, Scopus, Micromedex, the Cochrane Library, two pharmacovigilance databases and the gray literature for articles published in 2012-2018. Overall, 137 articles were considered potentially relevant and were critically appraised independently by two authors, leading to the inclusion of 44 relevant studies, guidelines and reviews. Another 10 important research reports were included in the review. Results Eight critical issues of pharmacovigilance in oncology were identified. These issues pertain to: terminology; range of side effects; targeted therapy and immunotherapy; chemoradiotherapy; generic drugs and biosimilars; drug interactions, pharmacogenetics and polypharmacy; special patient categories; and under-reporting of ADRs. Conclusion The importance of pharmacovigilance in oncology must be highlighted with every effort, to improve safety and offer cancer patients every possible help to improve their quality of life during such a critical period of their lives.
Collapse
Affiliation(s)
- Paolo Baldo
- Pharmacy Unit, CRO Aviano IRCCS, National Cancer Institute, Aviano, Italy.
| | - Giulia Fornasier
- Pharmacy Unit, CRO Aviano IRCCS, National Cancer Institute, Aviano, Italy
| | - Laura Ciolfi
- Scientific and Patients' Library, CRO Aviano IRCCS, National Cancer Institute, Aviano, Italy
| | - Ivana Sartor
- Scientific Direction, Clinical Trial Office Unit, CRO Aviano IRCCS, National Cancer Institute, Aviano, Italy
| | - Sara Francescon
- Pharmacy Unit, CRO Aviano IRCCS, National Cancer Institute, Aviano, Italy
| |
Collapse
|
8
|
Waldman SA, Terzic A. Process Improvement for Maximized Therapeutic Innovation Outcome. Clin Pharmacol Ther 2018; 103:8-12. [PMID: 29265398 PMCID: PMC5745039 DOI: 10.1002/cpt.929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022]
Abstract
Deconvoluting key biological mechanisms forms the framework for therapeutic discovery. Strategies that enable effective translation of those insights along the development and regulatory path ultimately drive validated clinical application in patients and populations. Accordingly, parity in What vs. How we transform novel mechanistic insights into therapeutic paradigms is essential in achieving success. Aligning molecular discovery with innovations in structures and processes along the discovery-development-regulation-utilization continuum maximizes the return on public and private investments for next-generation solutions in managing health and disease.
Collapse
Affiliation(s)
- Scott A Waldman
- Department of Pharmacology and Experimental Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Andre Terzic
- Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
9
|
Rezahosseini O, Hanaei S, Hamadani M, Keshavarz-Fathi M, Rezaei N. The promising role of monoclonal antibodies for immunotherapy of the HIV-associated cancer, non-Hodgkin lymphoma. Int Rev Immunol 2017; 37:165-173. [PMID: 29257907 DOI: 10.1080/08830185.2017.1405396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Association between HIV/AIDS and some of the cancers such as lymphomais is well known. Relative risk for developing non-Hodgkin lymphoma (NHL) increases 60-200 folds in HIV-infected individuals. Diffuse large B cell lymphoma (DLBCL), primary effusion lymphoma (PEL), Burkitt's lymphoma (BL) and Plasmablastic Lymphoma (PBL) are among the most frequent subtypes. During the last century, scientists found that the immune system could potentially detect and destroy cancer cells. Therefore, they started a new field of study, which is named immunotherapy. There are different immunotherapeutic methods, among which therapeutic antibodies, such as Brentuximabvedotin (Adcetris), Ibritumomabtiuxetan (Zevalin) and rituximab (Rituxan), used for treatment of NHLs showed promising results. In this article, we will review the immunotherapeutic option, monoclonal antibodies, for treatment of HIV-associated NHLs as well as their recent clinical status. We will also discuss the selective monoclonal antibody for each subtype of NHLs.
Collapse
Affiliation(s)
- Omid Rezahosseini
- a Cancer Immunology Project (CIP) , Universal Scientific Education and Research Network (USERN) , Tehran , Iran.,b Department of Infectious and Tropical diseases , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Sara Hanaei
- a Cancer Immunology Project (CIP) , Universal Scientific Education and Research Network (USERN) , Tehran , Iran.,c Research Center for Immunodeficiencies , Children's Medical Center, Tehran University of Medical Sciences , Tehran , Iran.,d School of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Mehdi Hamadani
- e Division of Hematology & Oncology , Medical College of Wisconsin , Milwaukee , WI , USA.,f Cancer Immunology Project (CIP) , Universal Scientific Education and Research Network (USERN) , Milwaukee , WI , USA
| | - Mahsa Keshavarz-Fathi
- a Cancer Immunology Project (CIP) , Universal Scientific Education and Research Network (USERN) , Tehran , Iran.,c Research Center for Immunodeficiencies , Children's Medical Center, Tehran University of Medical Sciences , Tehran , Iran.,d School of Medicine , Tehran University of Medical Sciences , Tehran , Iran.,g Students' Scientific Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - Nima Rezaei
- c Research Center for Immunodeficiencies , Children's Medical Center, Tehran University of Medical Sciences , Tehran , Iran.,h Department of Immunology, School of Medicine , Tehran University of Medical Sciences , Tehran , Iran.,i Cancer Immunology Project (CIP) , Universal Scientific Education and Research Network (USERN) , Sheffield , UK
| |
Collapse
|
10
|
Vanacker H, Vetters J, Moudombi L, Caux C, Janssens S, Michallet MC. Emerging Role of the Unfolded Protein Response in Tumor Immunosurveillance. Trends Cancer 2017; 3:491-505. [PMID: 28718404 DOI: 10.1016/j.trecan.2017.05.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/15/2017] [Accepted: 05/19/2017] [Indexed: 02/07/2023]
Abstract
Disruption of endoplasmic reticulum (ER) homeostasis results in ER stress and activation of the unfolded protein response (UPR). This response alleviates cell stress, and is activated in both tumor cells and tumor infiltrating immune cells. The UPR plays a dual function in cancer biology, acting as a barrier to tumorigenesis at the premalignant stage, while fostering cancer maintenance in established tumors. In infiltrating immune cells, the UPR has been involved in both immunosurveillance and immunosuppressive functions. This review aims to decipher the role of the UPR at different stages of tumorigenesis and how the UPR shapes the balance between immunosurveillance and immune escape. This knowledge may improve existing UPR-targeted therapies and the design of novel strategies for cancer treatment.
Collapse
Affiliation(s)
- Hélène Vanacker
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, 69008, France
| | - Jessica Vetters
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium and Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Lyvia Moudombi
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, 69008, France
| | - Christophe Caux
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, 69008, France
| | - Sophie Janssens
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium and Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Marie-Cécile Michallet
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon, 69008, France.
| |
Collapse
|
11
|
Barnes TA, Amir E, Templeton AJ, Gomez-Garcia S, Navarro B, Seruga B, Ocana A. Efficacy, safety, tolerability and price of newly approved drugs in solid tumors. Cancer Treat Rev 2017; 56:1-7. [DOI: 10.1016/j.ctrv.2017.03.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 12/23/2022]
|
12
|
Waldman SA, Terzic A. Clinical Pharmacology & Therapeutics: Past, Present, and Future. Clin Pharmacol Ther 2017; 101:300-303. [PMID: 28194770 DOI: 10.1002/cpt.592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/08/2016] [Indexed: 12/15/2022]
Abstract
Clinical Pharmacology & Therapeutics (CPT), the definitive and timely source for advances in human therapeutics, transcends the drug discovery, development, regulation, and utilization continuum to catalyze, evolve, and disseminate discipline-transformative knowledge. Prioritized themes and multidisciplinary content drive the science and practice of clinical pharmacology, offering a trusted point of reference. An authoritative herald across global communities, CPT is a timeless information vehicle at the vanguard of discovery, translation, and application ushering therapeutic innovation into modern healthcare.
Collapse
Affiliation(s)
- S A Waldman
- Department of Pharmacology and Experimental Therapeutics, Division of Clinical Pharmacology, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - A Terzic
- Center for Regenerative Medicine, Departments of Cardiovascular Diseases, Molecular Pharmacology and Experimental Therapeutics, and Medical Genetics, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
13
|
Poly-functional and long-lasting anticancer immune response elicited by a safe attenuated Pseudomonas aeruginosa vector for antigens delivery. MOLECULAR THERAPY-ONCOLYTICS 2016; 3:16033. [PMID: 28035332 PMCID: PMC5155632 DOI: 10.1038/mto.2016.33] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/03/2016] [Accepted: 11/03/2016] [Indexed: 12/14/2022]
Abstract
Live-attenuated bacterial vectors for antigens delivery have aroused growing interest in the field of cancer immunotherapy. Their potency to stimulate innate immunity and to promote intracellular antigen delivery into antigen-presenting cells could be exploited to elicit a strong and specific cellular immune response against tumor cells. We previously described genetically-modified and attenuated Pseudomonas aeruginosa vectors able to deliver in vivo protein antigens into antigen-presenting cells, through Type 3 secretion system of the bacteria. Using this approach, we managed to protect immunized mice against aggressive B16 melanoma development in both a prophylactic and therapeutic setting. In this study, we further investigated the antigen-specific CD8+ T cell response, in terms of phenotypic and functional aspects, obtained after immunizations with a killed but metabolically active P. aeruginosa attenuated vector. We demonstrated that P. aeruginosa vaccine induces a highly functional pool of antigen-specific CD8+ T cell able to infiltrate the tumor. Furthermore, multiple immunizations allowed the development of a long-lasting immune response, represented by a pool of predominantly effector memory cells which protected mice against late tumor challenge. Overall, killed but metabolically active P. aeruginosa vector is a safe and promising approach for active and specific antitumor immunotherapy.
Collapse
|