1
|
Ali MU, Chaudhary BN, Panja S, Gendelman HE. Theranostic Diagnostics. Results Probl Cell Differ 2024; 73:551-578. [PMID: 39242393 DOI: 10.1007/978-3-031-62036-2_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2024]
Abstract
Diagnosing and then treating disease defines theranostics. The approach holds promise by facilitating targeted disease outcomes. The simultaneous analysis of finding the presence of disease pathophysiology while providing a parallel in treatment is a novel and effective strategy for seeking improved medical care. We discuss how theranostics improves disease outcomes is discussed. The chapter reviews the delivery of targeted therapies. Bioimaging techniques are highlighted as early detection and tracking systems for microbial infections, degenerative diseases, and cancers.
Collapse
Affiliation(s)
- Mohammad Uzair Ali
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Bharat N Chaudhary
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sudipta Panja
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
| |
Collapse
|
2
|
Liu XY, Li ZW, Zhang B, Liu F, Zhang W, Peng D. Effects of preoperative bicarbonate and lactate levels on short-term outcomes and prognosis in elderly patients with colorectal cancer. BMC Surg 2023; 23:127. [PMID: 37189084 DOI: 10.1186/s12893-023-02039-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/11/2023] [Indexed: 05/17/2023] Open
Abstract
PURPOSE The aim of this study was to analyze the effect of preoperative bicarbonate and lactate levels (LL) on the short-term outcomes and prognosis in elderly (≥ 65 years) patients with colorectal cancer (CRC). METHODS We collected the information of CRC patients from Jan 2011 to Jan 2020 in a single clinical center. According to the results of preoperative blood gas analysis, we divided patients into the higher/lower bicarbonate group and the higher/lower lactate group, and compared their baseline information, surgery-related information, overall survival (OS) and disease-free survival (DFS). RESULTS A total of 1473 patients were included in this study. Comparing the clinical data of the higher/lower bicarbonate group and the higher/lower lactate group, the lower group were older (p < 0.01), had higher rates of coronary heart disease (CHD) (p = 0.025), a higher proportion of colon tumors (p < 0.01), larger tumor size (p < 0.01), higher rates of open surgery (p < 0.01), more intraoperative blood loss (p < 0.01), higher overall complications (p < 0.01) and 30-day deaths (p < 0.01). The higher LL patients had more male patients (p < 0.01), higher body mass index (BMI) (p < 0.01) and drinking rates (p = 0.049), higher rates of type 2 diabetes mellitus (T2DM) (p < 0.01) and lower rates of open surgery (p < 0.01). In multivariate analysis, age (p < 0.01), BMI (p = 0.036), T2DM (p = 0.023), and surgical methods (p < 0.01) were independent risk factors of overall complications. The independent risk factors for OS included age (p < 0.01), tumor site (p = 0.014), tumor stage (p < 0.01), tumor size (p = 0.036), LL (p < 0.01), and overall complications (p < 0.01). The independent risk factors of DFS included age (p = 0.012), tumor site (p = 0.019), tumor stage (p < 0.01), LL (p < 0.01), and overall complications (p < 0.01). CONCLUSION Preoperative LL significantly affected postoperative OS and DFS of CRC patients, but bicarbonate might not affect the prognosis of CRC patients. Therefore, surgeons should actively focus on and adjust the LL of patients before surgery.
Collapse
Affiliation(s)
- Xiao-Yu Liu
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zi-Wei Li
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Bin Zhang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Fei Liu
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Wei Zhang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Dong Peng
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| |
Collapse
|
3
|
Awan UA, Naeem M, Saeed RF, Mumtaz S, Akhtar N. Smart Nanocarrier-Based Cancer Therapeutics. Cancer Treat Res 2023; 185:207-235. [PMID: 37306911 DOI: 10.1007/978-3-031-27156-4_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Considerable advances in the field of cancer have been made; however, these have not been translated into similar clinical progress which results in the high prevalence and increased cancer-related mortality rate worldwide. Available treatments have several challenges such as off-target side effects, non-specific long-term potential biodisruption, drug resistance, and overall inadequate response rates and high probability of recurrence. The limitations associated with independent cancer diagnosis and therapy can be minimized by an emerging interdisciplinary research field of nanotheranostics which include successful integration of diagnosis and therapy on a single agent using nanoparticles. This may offer a powerful tool in developing innovative strategies to enable "personalized medicine" for diagnosis and treatment of cancer. Nanoparticles have been proven to be powerful imaging tools or potent agents for cancer diagnosis, treatment, and prevention. The nanotheranostic provides minimally invasive in vivo visualization of drug biodistribution and accumulation at the target site with real-time monitoring of therapeutic outcome. This chapter intends to cover several important aspects and the advances in the field of nanoparticles-mediated cancer therapeutics including nanocarrier development, drug/gene delivery, intrinsically active nanoparticles, tumor microenvironment, and nanotoxicity. The chapter represents an overview of challenges associated with cancer treatment, rational for nanotechnology in cancer therapeutics, novel concepts of multifunctional nanomaterials for cancer therapy along with their classification and their clinical prospective in different cancers. A special focus is on the nanotechnology: regulatory perspective for drug development in cancer therapeutics. Obstacles hindering further development of nanomaterials-mediated cancer therapy are also discussed. In general, the objective of this chapter is to improve our perceptive in the design and development of nanotechnology for cancer therapeutics.
Collapse
Affiliation(s)
- Uzma Azeem Awan
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan.
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA.
| | - Muhammad Naeem
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Rida Fatima Saeed
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Sara Mumtaz
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Nosheen Akhtar
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| |
Collapse
|
4
|
Peng H, He X, Wang Q. Targeted drug delivery system for ovarian cancer microenvironment: Improving the effects of immunotherapy. Front Immunol 2022; 13:1035997. [PMID: 36405688 PMCID: PMC9670735 DOI: 10.3389/fimmu.2022.1035997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Immunotherapies have shown modest benefits in the current clinical trials for ovarian cancer. The tumor microenvironment (TME) in an immunosuppressive phenotype contributes to this “failure” of immunotherapy in ovarian cancer. Many stromal cell types in the TME (e.g., tumor-associated macrophages and fibroblasts) have been identified as having plasticity in pro- and antitumor activities and are responsible for suppressing the antitumor immune response. Thus, the TME is an extremely valuable target for adjuvant interventions to improve the effects of immunotherapy. The current strategies targeting the TME include: 1) eliminating immunosuppressive cells or transforming them into immunostimulatory phenotypes and 2) inhibiting their immunosuppressive or pro-tumor production. Most of the effective agents used in the above strategies are genetic materials (e.g., cDNA, mRNA, or miRNA), proteins, or other small molecules (e.g., peptides), which are limited in their target and instability. Various formulations of drug delivery system (DDS) have been designed to realize the controlled release and targeting delivery of these agents to the tumor sites. Nanoparticles and liposomes are the most frequently exploited materials. Based on current evidence from preclinical and clinical studies, the future of the DDS is promising in cancer immunotherapy since the combination of agents with a DDS has shown increased efficacy and decreased toxicities compared with free agents. In the future, more efforts are needed to further identify the hallmarks and biomarkers in the ovarian TME, which is crucial for the development of more effective, safe, and personalized DDSs.
Collapse
|
5
|
Sim TM. Nanoparticle-assisted targeting of the tumour microenvironment. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Ali A, Akhtar J, Ahmad U, Basheer AS, Jaiswal N, Jahan A. Armamentarium in drug delivery for colorectal cancer. Crit Rev Ther Drug Carrier Syst 2022; 40:1-48. [DOI: 10.1615/critrevtherdrugcarriersyst.2022039241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
7
|
Zhao Y, Bilal M, Qindeel M, Khan MI, Dhama K, Iqbal HMN. Nanotechnology-based immunotherapies to combat cancer metastasis. Mol Biol Rep 2021; 48:6563-6580. [PMID: 34424444 DOI: 10.1007/s11033-021-06660-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 08/16/2021] [Indexed: 02/05/2023]
Abstract
Emerging concepts in nanotechnology have gained particular attention for their clinical translation of immunotherapies of cancer, autoimmune and infectious diseases. Several nanoconstructs have been engineered with unique structural, physicochemical, and functional features as robust alternatives for conventional chemotherapies. Traditional cancer therapies like chemotherapy, radiotherapy, and ultimately surgery are the most widely practiced in biomedical settings. Biomaterials and nanotechnology have introduced vehicles for drug delivery and have revolutionized the concept of the modern immunotherapeutic paradigm. Various types of nanomaterials, such as nanoparticles and, more specifically, drug-loaded nanoparticles are becoming famous for drug delivery applications because of safety, patient compliance, and smart action. Such therapeutic modalities have acknowledged regulatory endorsement and are being used in twenty-first-century clinical settings. Considering the emerging concepts and landscaping potentialities, herein, we spotlight and discuss nanoparticle-based immunotherapies as a smart and sophisticated drug delivery approach to combat cancer metastasis. The introductory part of this manuscript discusses a broad overview of cancer immunotherapy to understand better the tumor microenvironment and nanotechnology-oriented immunomodulatory strategies to cope with advanced-stage cancers. Following that, most addressable problems allied with conventional immunotherapies are given in comparison to nanoparticle-based immunotherapies. The later half of this work comprehensively highlights the requisite delivery of various bioactive entities with particular cases and examples. Finally, this review also encompasses a comprehensive concluding overview and future standpoints to strengthen a successful clinical translation of nanoparticle-based immunotherapies as a smart and sophisticated drug delivery approach.
Collapse
Affiliation(s)
- Yuping Zhao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Maimoona Qindeel
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320, Pakistan
- Hamdard Institute of Pharmaceutical Sciences, Hamdard University Islamabad Campus, Islamabad, Pakistan
| | - Muhammad Imran Khan
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, 230027, Anhui, China
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, 64849, Monterrey, Mexico.
| |
Collapse
|
8
|
Qiu Y, Su M, Liu L, Tang Y, Pan Y, Sun J. Clinical Application of Cytokines in Cancer Immunotherapy. Drug Des Devel Ther 2021; 15:2269-2287. [PMID: 34079226 PMCID: PMC8166316 DOI: 10.2147/dddt.s308578] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022] Open
Abstract
Cytokines are key components of the immune system and play pivotal roles in anticancer immune response. Cytokines as either therapeutic agents or targets hold clinical promise for cancer precise treatment. Here, we provide an overview of the various roles of cytokines in the cancer immunity cycle, with a particular focus on the clinical researches of cytokine-based drugs in cancer therapy. We review 27 cytokines in 2630 cancer clinical trials registered with ClinicalTrials.gov that had completed recruitment up to January 2021 while summarizing important cases for each cytokine. We also discuss recent progress in methods for improving the delivery efficiency, stability, biocompatibility, and availability of cytokines in therapeutic applications.
Collapse
Affiliation(s)
- Yi Qiu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Mengxi Su
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Leyi Liu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Yiqi Tang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Yuan Pan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Jianbo Sun
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| |
Collapse
|
9
|
Florindo HF, Kleiner R, Vaskovich-Koubi D, Acúrcio RC, Carreira B, Yeini E, Tiram G, Liubomirski Y, Satchi-Fainaro R. Immune-mediated approaches against COVID-19. NATURE NANOTECHNOLOGY 2020; 15:630-645. [PMID: 32661375 PMCID: PMC7355525 DOI: 10.1038/s41565-020-0732-3] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/08/2020] [Indexed: 05/05/2023]
Abstract
The coronavirus disease-19 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The long incubation period of this new virus, which is mostly asymptomatic yet contagious, is a key reason for its rapid spread across the world. Currently, there is no worldwide-approved treatment for COVID-19. Therefore, the clinical and scientific communities have joint efforts to reduce the severe impact of the outbreak. Research on previous emerging infectious diseases have created valuable knowledge that is being exploited for drug repurposing and accelerated vaccine development. Nevertheless, it is important to generate knowledge on SARS-CoV-2 mechanisms of infection and its impact on host immunity, to guide the design of COVID-19 specific therapeutics and vaccines suitable for mass immunization. Nanoscale delivery systems are expected to play a paramount role in the success of these prophylactic and therapeutic approaches. This Review provides an overview of SARS-CoV-2 pathogenesis and examines immune-mediated approaches currently explored for COVID-19 treatments, with an emphasis on nanotechnological tools.
Collapse
Affiliation(s)
- Helena F Florindo
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
| | - Ron Kleiner
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Daniella Vaskovich-Koubi
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Rita C Acúrcio
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Barbara Carreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Eilam Yeini
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galia Tiram
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yulia Liubomirski
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| |
Collapse
|
10
|
Mu W, Chu Q, Liu Y, Zhang N. A Review on Nano-Based Drug Delivery System for Cancer Chemoimmunotherapy. NANO-MICRO LETTERS 2020; 12:142. [PMID: 34138136 PMCID: PMC7770879 DOI: 10.1007/s40820-020-00482-6] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/11/2020] [Indexed: 05/11/2023]
Abstract
Although notable progress has been made on novel cancer treatments, the overall survival rate and therapeutic effects are still unsatisfactory for cancer patients. Chemoimmunotherapy, combining chemotherapeutics and immunotherapeutic drugs, has emerged as a promising approach for cancer treatment, with the advantages of cooperating two kinds of treatment mechanism, reducing the dosage of the drug and enhancing therapeutic effect. Moreover, nano-based drug delivery system (NDDS) was applied to encapsulate chemotherapeutic agents and exhibited outstanding properties such as targeted delivery, tumor microenvironment response and site-specific release. Several nanocarriers have been approved in clinical cancer chemotherapy and showed significant improvement in therapeutic efficiency compared with traditional formulations, such as liposomes (Doxil®, Lipusu®), nanoparticles (Abraxane®) and micelles (Genexol-PM®). The applications of NDDS to chemoimmunotherapy would be a powerful strategy for future cancer treatment, which could greatly enhance the therapeutic efficacy, reduce the side effects and optimize the clinical outcomes of cancer patients. Herein, the current approaches of cancer immunotherapy and chemoimmunotherapy were discussed, and recent advances of NDDS applied for chemoimmunotherapy were further reviewed.
Collapse
Affiliation(s)
- Weiwei Mu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Qihui Chu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Yongjun Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Na Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China.
| |
Collapse
|
11
|
Seynhaeve A, Amin M, Haemmerich D, van Rhoon G, ten Hagen T. Hyperthermia and smart drug delivery systems for solid tumor therapy. Adv Drug Deliv Rev 2020; 163-164:125-144. [PMID: 32092379 DOI: 10.1016/j.addr.2020.02.004] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 02/13/2020] [Accepted: 02/19/2020] [Indexed: 12/31/2022]
Abstract
Chemotherapy is a cornerstone of cancer therapy. Irrespective of the administered drug, it is crucial that adequate drug amounts reach all cancer cells. To achieve this, drugs first need to be absorbed, then enter the blood circulation, diffuse into the tumor interstitial space and finally reach the tumor cells. Next to chemoresistance, one of the most important factors for effective chemotherapy is adequate tumor drug uptake and penetration. Unfortunately, most chemotherapeutic agents do not have favorable properties. These compounds are cleared rapidly, distribute throughout all tissues in the body, with only low tumor drug uptake that is heterogeneously distributed within the tumor. Moreover, the typical microenvironment of solid cancers provides additional hurdles for drug delivery, such as heterogeneous vascular density and perfusion, high interstitial fluid pressure, and abundant stroma. The hope was that nanotechnology will solve most, if not all, of these drug delivery barriers. However, in spite of advances and decades of nanoparticle development, results are unsatisfactory. One promising recent development are nanoparticles which can be steered, and release content triggered by internal or external signals. Here we discuss these so-called smart drug delivery systems in cancer therapy with emphasis on mild hyperthermia as a trigger signal for drug delivery.
Collapse
|
12
|
Nanotechnology in the arena of cancer immunotherapy. Arch Pharm Res 2020; 43:58-79. [DOI: 10.1007/s12272-020-01207-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/09/2020] [Indexed: 12/14/2022]
|
13
|
Abumanhal-Masarweh H, Koren L, Zinger A, Yaari Z, Krinsky N, Kaneti G, Dahan N, Lupu-Haber Y, Suss-Toby E, Weiss-Messer E, Schlesinger-Laufer M, Shainsky-Roitman J, Schroeder A. Sodium bicarbonate nanoparticles modulate the tumor pH and enhance the cellular uptake of doxorubicin. J Control Release 2019; 296:1-13. [PMID: 30615983 DOI: 10.1016/j.jconrel.2019.01.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 12/22/2022]
Abstract
Acidic pH in the tumor microenvironment is associated with cancer metabolism and creates a physiological barrier that prevents from drugs to penetrate cells. Specifically, ionizable weak-base drugs, such as doxorubicin, freely permeate membranes in their uncharged form, however, in the acidic tumor microenvironment these drugs become charged and their cellular permeability is retarded. In this study, 100-nm liposomes loaded with sodium bicarbonate were used as adjuvants to elevate the tumor pH. Combined treatment of triple-negative breast cancer cells (4T1) with doxorubicin and sodium-bicarbonate enhanced drug uptake and increased its anti-cancer activity. In vivo, mice bearing orthotropic 4T1 breast cancer tumors were administered either liposomal or free bicarbonate intravenously. 3.7 ± 0.3% of the injected liposomal dose was detected in the tumor after twenty-four hours, compared to 0.17% ± 0.04% in the group injected free non-liposomal bicarbonate, a 21-fold increase. Analyzing nanoparticle biodistribution within the tumor tissue revealed that 93% of the PEGylated liposomes accumulated in the extracellular matrix, while 7% were detected intracellularly. Mice administered bicarbonate-loaded liposomes reached an intra-tumor pH value of 7.38 ± 0.04. Treating tumors with liposomal bicarbonate combined with a sub-therapeutic dose of doxorubicin achieved an improved therapeutic outcome, compared to mice treated with doxorubicin or bicarbonate alone. Interestingly, analysis of the tumor microenvironment demonstrated an increase in immune cell' population (T-cell, B-cell and macrophages) in tumors treated with liposomal bicarbonate. This study demonstrates that targeting metabolic adjuvants with nanoparticles to the tumor microenvironment can enhance anticancer drug activity and improve treatment.
Collapse
Affiliation(s)
- Hanan Abumanhal-Masarweh
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel; Russell Berrie Nanotechnology Institute, The Norman Seiden Multidisciplinary Graduate Program, Technion - Israel Institute of Technology, Haifa 3200, Israel
| | - Lilach Koren
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Assaf Zinger
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Zvi Yaari
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Nitzan Krinsky
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel; The Interdisciplinary Program for Biotechnology, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Galoz Kaneti
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Nitsan Dahan
- Life Sciences and Engineering Infrastructure Center, Lorry I. Lokey Interdisciplinary Center, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Yael Lupu-Haber
- Life Sciences and Engineering Infrastructure Center, Lorry I. Lokey Interdisciplinary Center, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Edith Suss-Toby
- Bioimging Center, Biomedical Core Facility, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Esther Weiss-Messer
- Bioimging Center, Biomedical Core Facility, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Michal Schlesinger-Laufer
- The Pre-Clinical Research Authority Unit, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Janna Shainsky-Roitman
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Avi Schroeder
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
| |
Collapse
|
14
|
Theranostics Applications of Nanoparticles in Cancer Immunotherapy. Med Sci (Basel) 2018; 6:medsci6040100. [PMID: 30424010 PMCID: PMC6313674 DOI: 10.3390/medsci6040100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/31/2018] [Accepted: 11/05/2018] [Indexed: 01/01/2023] Open
Abstract
With the advancement in the mechanism of immune surveillance and immune evasion in cancer cells, cancer immunotherapy shows promising results for treating cancer with established efficacy and less toxicity. As a result of the off-target effect, the approach for delivering vaccines, adjuvants, or antibodies directly to tumor sites is gaining widespread attention. An effective alternative is to utilize nanoengineered particles, functioning as drug-delivery systems or as antigens themselves. This article reviews the practical implementation of nanotechnology in cancer immunotherapy.
Collapse
|
15
|
Qiu H, Min Y, Rodgers Z, Zhang L, Wang AZ. Nanomedicine approaches to improve cancer immunotherapy. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9. [PMID: 28296286 DOI: 10.1002/wnan.1456] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/28/2016] [Accepted: 12/17/2016] [Indexed: 01/10/2023]
Abstract
Significant advances have been made in the field of cancer immunotherapy by orchestrating the body's immune system to eradicate cancer cells. However, safety and efficacy concerns stemming from the systemic delivery of immunomodulatory compounds limits cancer immunotherapies expansion and application. In this context, nanotechnology presents a number of advantages, such as targeted delivery to immune cells, enhanced clinical outcomes, and reduced adverse events, which may aid in the delivery of cancer vaccines and immunomodulatory agents. With this in mind, a diverse range of nanomaterials with different physicochemical characteristics have been developed to stimulate the immune system and battle cancer. In this review, we will focus on some recent developments and the potential advantages of utilizing nanotechnology within the field of cancer immunotherapy. WIREs Nanomed Nanobiotechnol 2017, 9:e1456. doi: 10.1002/wnan.1456 For further resources related to this article, please visit the WIREs website.
Collapse
Affiliation(s)
- Hui Qiu
- Laboratory of Nano- and Translational Medicine, Lineberger Comprehensive Cancer Center, Carolina Center for Cancer Nanotechnology Excellence, Carolina Institute of Nanomedicine; Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC, USA.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yuanzeng Min
- Laboratory of Nano- and Translational Medicine, Lineberger Comprehensive Cancer Center, Carolina Center for Cancer Nanotechnology Excellence, Carolina Institute of Nanomedicine; Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Zach Rodgers
- Laboratory of Nano- and Translational Medicine, Lineberger Comprehensive Cancer Center, Carolina Center for Cancer Nanotechnology Excellence, Carolina Institute of Nanomedicine; Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Longzhen Zhang
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Andrew Z Wang
- Laboratory of Nano- and Translational Medicine, Lineberger Comprehensive Cancer Center, Carolina Center for Cancer Nanotechnology Excellence, Carolina Institute of Nanomedicine; Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC, USA.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| |
Collapse
|
16
|
Bardania H, Tarvirdipour S, Dorkoosh F. Liposome-targeted delivery for highly potent drugs. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:1478-1489. [DOI: 10.1080/21691401.2017.1290647] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hassan Bardania
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Shabnam Tarvirdipour
- Biomedical Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Farid Dorkoosh
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Medical Biomaterial Research Center (MBRC), Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
17
|
Tang SL, Bai MY, Wang JY, Hong PD. Development and application of micro-polysaccharide drug carriers incorporating doxorubicin and superparamagnetic iron oxide for bimodality treatment of hepatocellular carcinoma. Colloids Surf B Biointerfaces 2016; 151:304-313. [PMID: 28040662 DOI: 10.1016/j.colsurfb.2016.12.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/19/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023]
Abstract
In this study, we demonstrated a novel polyelectrolyte microparticle, doxorubicin(DOX)-superparamagnetic iron oxide (SPIO)-chondroitin sulfate (CS)/chitosan (CHI)microparticles (MPs), as a drug delivery system for hepatic cancer treatment. We also investigated the properties of these microparticles through composition determination, formulation tests, in vitro study, and in vivo study. The results showed that our DOX-SPIO-CS/CHI MPs had an average diameter of 1.43±0.54μm and exhibited a spherical shape. The encapsulation efficiency of this drug carrier was approximately 31±8.07%, according to our spectroscopic determination. The results of release profile test revealed the sustained-release behavior of DOX-SPIO-CS/CHI MPs, which released 51.5% of DOX within 48h of the testing period. According to the results of a cell viability assay and an animal study, the DOX-SPIO-CS/CHI MPs exhibited stronger cytotoxicity than did free DOX when it was administered to Hep G2 and Huh-6 human liver cancer cell lines in vitro and to nude mice of Hep G2/Huh-6-bearing mice model in vivo.
Collapse
Affiliation(s)
- Sung-Ling Tang
- Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC
| | - Meng-Yi Bai
- Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC; Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC; Adjunct Appointment to the Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Jyun-Yi Wang
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC
| | - Po-Da Hong
- Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC
| |
Collapse
|
18
|
Siegler EL, Kim YJ, Wang P. Nanomedicine targeting the tumor microenvironment: Therapeutic strategies to inhibit angiogenesis, remodel matrix, and modulate immune responses. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.jocit.2016.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
19
|
Doxorubicin/heparin composite nanoparticles for caspase-activated prodrug chemotherapy. Biomaterials 2016; 101:131-42. [PMID: 27286189 DOI: 10.1016/j.biomaterials.2016.05.056] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/30/2016] [Accepted: 05/31/2016] [Indexed: 11/23/2022]
Abstract
Caspase-activated prodrug chemotherapy is introduced and demonstrated using the composite nanoparticles (NPs), which deliver doxorubicin (DOX) and DEVD-S-DOX together to the tumor tissue. DEVD-S-DOX, DOX linked to a peptide moiety (DEVD), is a prodrug that is cleaved into free DOX by caspase-3 upon apoptosis. DEVD-S-DOX has no therapeutic efficacy, but it changes into free DOX with the expression of caspase-3. With the accumulation of the composite NPs in the tumor tissue by the enhanced permeation and retention (EPR) effect, a small exposure of DOX in the tumor cells initiated apoptosis in a localized area of the tumor tissue, which induced caspase-3 activation. Cleavage of DEVD-S-DOX into free DOX by caspase-3 continued with repetitive activation of caspase-3 and cleavage of DEVD-S-DOX at the tumor site. The composite NPs were characterized with transmittance electron microscopy (TEM) and particle size analyzer. We then evaluated the nanoparticle drug release, therapeutic efficacy, and in vivo biodistribution for tumor targeting using a non-invasive live animal imaging technology and the quantification of DOX with high performance liquid chromatography. DOX-induced apoptosis-targeted chemotherapy (DIATC) was verified by in vitro/in vivo DEVD-S-DOX response to free DOX and cellular uptake behavior of the composite NPs with flow cytometry analysis. Significant antitumor efficacy with minimal cardiotoxicity was also observed, which supported DIATC for improved chemotherapy.
Collapse
|
20
|
Abstract
Founded on the growing insight into the complex cancer-immune system interactions, adjuvant immunotherapies are rapidly emerging and being adapted for the treatment of various human malignancies. Immune checkpoint inhibitors, for example, have already shown clinical success. Nevertheless, many approaches are not optimized, require frequent administration, are associated with systemic toxicities and only show modest efficacy as monotherapies. Nanotechnology can potentially enhance the efficacy of such immunotherapies by improving the delivery, retention and release of immunostimulatory agents and biologicals in targeted cell populations and tissues. This review presents the current status and emerging trends in such nanotechnology-based cancer immunotherapies including the role of nanoparticles as carriers of immunomodulators, nanoparticles-based cancer vaccines, and depots for sustained immunostimulation. Also highlighted are key translational challenges and opportunities in this rapidly growing field.
Collapse
Affiliation(s)
- Sourabh Shukla
- Department of Biomedical Engineering, Case
Western Reserve University, Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, Case Western
Reserve University, Cleveland, OH 44106, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case
Western Reserve University, Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, Case Western
Reserve University, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve
University, Cleveland, OH 44106, USA
- Department of Materials Science and
Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Macromolecular Science and
Engineering, Case Western Reserve University, Cleveland, OH 44106
| |
Collapse
|
21
|
Co-delivery of chemotherapeutics and proteins for synergistic therapy. Adv Drug Deliv Rev 2016; 98:64-76. [PMID: 26546464 DOI: 10.1016/j.addr.2015.10.021] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 10/23/2015] [Accepted: 10/26/2015] [Indexed: 01/15/2023]
Abstract
Combination therapy with chemotherapeutics and protein therapeutics, typically cytokines and antibodies, has been a type of crucial approaches for synergistic cancer treatment. However, conventional approaches by simultaneous administration of free chemotherapeutic drugs and proteins lead to limitations for further optimizing the synergistic effects, due to the distinct in vivo pharmacokinetics and distribution of small drugs and proteins, insufficient tumor selectivity and tumor accumulation, unpredictable drug/protein ratios at tumor sites, short half-lives, and serious systemic adverse effects. Consequently, to obtain optimal synergistic anti-tumor efficacy, considerable efforts have been devoted to develop the co-delivery systems for co-incorporating chemotherapeutics and proteins into a single carrier system and subsequently releasing the dual or multiple payloads at desired target sites in a more controllable manner. The co-delivery systems result in markedly enhanced blood stability and in vivo half-lives of the small drugs and proteins, elevated tumor accumulation, as well as the capability of delivering the multiple agents to the same target sites with rational drug/protein ratios, which may facilitate maximizing the synergistic effects and therefore lead to optimal antitumor efficacy. This review emphasizes the recent advances in the co-delivery systems for chemotherapeutics and proteins, typically cytokines and antibodies, for systemic or localized synergistic cancer treatment. Moreover, the proposed mechanisms responsible for the synergy of chemotherapeutic drugs and proteins are discussed.
Collapse
|
22
|
Kapadia CH, Perry JL, Tian S, Luft JC, DeSimone JM. Nanoparticulate immunotherapy for cancer. J Control Release 2015; 219:167-180. [DOI: 10.1016/j.jconrel.2015.09.062] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/25/2015] [Accepted: 09/28/2015] [Indexed: 12/11/2022]
|
23
|
Lee BS, Cho YW, Kim GC, Lee DH, Kim CJ, Kil HS, Chi DY, Byun Y, Yuk SH, Kim K, Kim IS, Kwon IC, Kim SY. Induced Phenotype Targeted Therapy: Radiation-Induced Apoptosis-Targeted Chemotherapy. ACTA ACUST UNITED AC 2014; 107:dju403. [DOI: 10.1093/jnci/dju403] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
24
|
Shenoi MM, Iltis I, Choi J, Koonce NA, Metzger GJ, Griffin RJ, Bischof JC. Nanoparticle delivered vascular disrupting agents (VDAs): use of TNF-alpha conjugated gold nanoparticles for multimodal cancer therapy. Mol Pharm 2013; 10:1683-94. [PMID: 23544801 DOI: 10.1021/mp300505w] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Surgery, radiation and chemotherapy remain the mainstay of current cancer therapy. However, treatment failure persists due to the inability to achieve complete local control of the tumor and curtail metastatic spread. Vascular disrupting agents (VDAs) are a class of promising systemic agents that are known to synergistically enhance radiation, chemotherapy or thermal treatments of solid tumors. Unfortunately, there is still an unmet need for VDAs with more favorable safety profiles and fewer side effects. Recent work has demonstrated that conjugating VDAs to other molecules (polyethylene glycol, CNGRCG peptide) or nanoparticles (liposomes, gold) can reduce toxicity of one prominent VDA (tumor necrosis factor alpha, TNF-α). In this report, we show the potential of a gold conjugated TNF-α nanoparticle (NP-TNF) to improve multimodal cancer therapies with VDAs. In a dorsal skin fold and hindlimb murine xenograft model of prostate cancer, we found that NP-TNF disrupts endothelial barrier function and induces a significant increase in vascular permeability within the first 1-2 h followed by a dramatic 80% drop in perfusion 2-6 h after systemic administration. We also demonstrate that the tumor response to the nanoparticle can be verified using dynamic contrast-enhanced magnetic resonance imaging (MRI), a technique in clinical use. Additionally, multimodal treatment with thermal therapies at the perfusion nadir in the sub- and supraphysiological temperature regimes increases tumor volumetric destruction by over 60% and leads to significant tumor growth delays compared to thermal therapy alone. Lastly, NP-TNF was found to enhance thermal therapy in the absence of neutrophil recruitment, suggesting that immune/inflammatory regulation is not central to its power as part of a multimodal approach. Our data demonstrate the potential of nanoparticle-conjugated VDAs to significantly improve cancer therapy by preconditioning tumor vasculature to a secondary insult in a targeted manner. We anticipate our work to direct investigations into more potent tumor vasculature specific combinations of VDAs and nanoparticles with the goal of transitioning optimal regimens into clinical trials.
Collapse
Affiliation(s)
- Mithun M Shenoi
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, Minnesota, United States
| | | | | | | | | | | | | |
Collapse
|
25
|
Pharmaceutical perspectives for the delivery of TNF-α in cancer therapy. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2012. [DOI: 10.1007/s40005-012-0044-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
26
|
Christian DA, Hunter CA. Particle-mediated delivery of cytokines for immunotherapy. Immunotherapy 2012; 4:425-41. [PMID: 22512636 DOI: 10.2217/imt.12.26] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The ability of cytokines to direct the immune response to vaccination, infection and tumors has motivated their use in therapy to augment or shape immunity. To avoid toxic side effects associated with systemic cytokine administration, several approaches have been developed using particle-encapsulated cytokines to deliver this cargo to specific cell types and tissues. Initial work used cytokine-loaded particles to deliver proinflammatory cytokines to phagocytes to enhance antimicrobial and antitumor responses. These particles have also been used to create a cytokine depot at a local site to supplement prophylactic or antitumor vaccines or injected directly into solid tumors to activate immune cells to eliminate established tumors. Finally, recent advances have revealed that paracrine delivery of cytokines directly to T cells has the potential to enhance T-cell mediated therapies. The studies reviewed here highlight the progress in the last 30 years that has established the potential of particle-mediated cytokine immunotherapy.
Collapse
Affiliation(s)
- David A Christian
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | |
Collapse
|
27
|
Seki T, Carroll F, Illingworth S, Green N, Cawood R, Bachtarzi H, Šubr V, Fisher KD, Seymour LW. Tumour necrosis factor-alpha increases extravasation of virus particles into tumour tissue by activating the Rho A/Rho kinase pathway. J Control Release 2011; 156:381-9. [DOI: 10.1016/j.jconrel.2011.08.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 08/09/2011] [Accepted: 08/14/2011] [Indexed: 10/17/2022]
|
28
|
Fens MHAM, Storm G, Schiffelers RM. Tumor vasculature as target for therapeutic intervention. Expert Opin Investig Drugs 2010; 19:1321-38. [DOI: 10.1517/13543784.2010.524204] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
29
|
ten Hagen TLM, Seynhaeve ALB, Eggermont AMM. Tumor necrosis factor-mediated interactions between inflammatory response and tumor vascular bed. Immunol Rev 2009; 222:299-315. [PMID: 18364010 DOI: 10.1111/j.1600-065x.2008.00619.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Solid tumor therapy with chemotherapeutics greatly depends on the efficiency with which drugs are delivered to tumor cells. The typical characteristics of the tumor physiology promote but also appose accumulation of blood-borne agents. The leaky tumor vasculature allows easy passage of drugs. However, the disorganized vasculature causes heterogeneous blood flow, and together with the often-elevated interstitial fluid pressure, this state results in poor intratumoral drug levels and failure of treatment. Manipulation of the tumor vasculature could overcome these barriers and promote drug delivery. Targeting the vasculature has several advantages. The endothelial lining is readily accessible and the first to be encountered after systemic injection. Second, endothelial cells tend to be more stable than tumor cells and thus less likely to develop resistance to therapy. Third, targeting the tumor vasculature can have dual effects: (i) manipulation of the vasculature can enhance concomitant chemotherapy, and (ii) subsequent destruction of the vasculature can help to kill the tumor. In particular, tumor necrosis factor alpha is studied. Its action on solid tumors, both directly through tumor cell killing and destruction of the tumor vasculature and indirectly through manipulation of the tumor physiology, is complex. Understanding the mechanism of TNF and agents with comparable action on solid tumors is an important focus to further develop combination immunotherapy strategies.
Collapse
Affiliation(s)
- Timo L M ten Hagen
- Department of Surgical Oncology, Erasmus MC-Daniel den Hoed Cancer Center, Rotterdam, The Netherlands.
| | | | | |
Collapse
|
30
|
Abstract
Tumor necrosis factor (TNF) is a multifunctional cytokine that plays important roles in diverse cellular events such as cell survival, proliferation, differentiation, and death. As a pro-inflammatory cytokine, TNF is secreted by inflammatory cells, which may be involved in inflammation-associated carcinogenesis. TNF exerts its biological functions through activating distinct signaling pathways such as nuclear factor-kappaB (NF-kappaB) and c-Jun N-terminal kinase (JNK). NF-kappaB is a major cell survival signal that is anti-apoptotic, whereas sustained JNK activation contributes to cell death. The crosstalk between the NF-kappaB and JNK is involved in determining cellular outcomes in response to TNF. In regard to cancer, TNF is a double-dealer. On one hand, TNF could be an endogenous tumor promoter, because TNF stimulates the growth, proliferation, invasion and metastasis, and tumor angiogenesis of cancer cells. On the other hand, TNF could be a cancer killer. The property of TNF in inducing cancer cell death renders it a potential cancer therapeutic, although much work is needed to reduce its toxicity for systematic TNF administration. Recent studies have focused on sensitizing cancer cells to TNF-induced apoptosis through inhibiting survival signals such as NF-kappaB, by combined therapy. In this article we provide an overview of the roles of TNF-induced signaling pathways in cancer biology with specific emphasis on carcinogenesis and cancer therapy.
Collapse
Affiliation(s)
- Xia Wang
- Laboratory of Molecular and Translational Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | | |
Collapse
|
31
|
Glucosaminylmuramyl dipeptide potentiates the effects of tumor necrosis factor-alpha and cisplatin on transformed cells in vitro. Bull Exp Biol Med 2008; 143:251-4. [PMID: 17970214 DOI: 10.1007/s10517-007-0063-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We studied the effect of combined treatment with cisplatin, glucosaminylmuramyl dipeptide, and TNF-alpha on viability of MCF-7, U-937, B16, and L-929 tumor cells, Ehrlich ascites carcinoma cells, and normal cells (human peripheral blood lymphocytes, peritoneal macrophages, and mouse bone marrow cells). Glucosaminylmuramyl dipeptide was nontoxic for normal and tumor cells, but promoted death of tumor cells after administration in combination with cisplatin and/or TNF-alpha. At the same time, glucosaminylmuramyl dipeptide did not modulate the cytotoxic effect of individual or combined treatment with cisplatin and TNF-alpha on normal cells. Administration of glucosaminylmuramyl dipeptide to cultured MCF-7 cells 20 h before the study increased the potentiating effect of muramyl peptide.
Collapse
|
32
|
Seynhaeve ALB, Hoving S, Schipper D, Vermeulen CE, de Wiel-Ambagtsheer GA, van Tiel ST, Eggermont AMM, Ten Hagen TLM. Tumor necrosis factor alpha mediates homogeneous distribution of liposomes in murine melanoma that contributes to a better tumor response. Cancer Res 2007; 67:9455-62. [PMID: 17909055 DOI: 10.1158/0008-5472.can-07-1599] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Successful treatment of solid tumors with chemotherapeutics requires that adequate levels reach the tumor cells. Tumor vascular normalization has been proposed to enhance drug delivery and improve tumor response to chemotherapy. Differently, augmenting leakage of the tumor-associated vasculature, and as such enhance vascular abnormality, may improve tumor response as well. In the present study, we show that addition of low-dose tumor necrosis factor alpha (TNF) to systemic injections with pegylated long circulating liposomes augmented the tumor accumulation of these liposomes 5- to 6-fold, which strongly correlated with enhanced tumor response. Using intravital microscopy, we could study the liposomal distribution inside the tumor in more detail. Especially 100 nm liposomes effectively extravasate in the surrounding tumor tissue in the presence of TNF and this occurred without any effect on tumor vascular density, branching, and diameter. Next to that, we observed in living animals that tumor cells take up the liposomes intact, followed by intracellular degradation. To our knowledge, this is an unprecedented observation. Taken together, TNF renders more tumor vessels permeable, leading to a more homogeneous distribution of the liposomes throughout the tumor, which is crucial for an optimal tumor response. We conclude that delivery of nanoparticulate drug formulations to solid tumor benefits from augmenting the vascular leakage through vascular manipulation with vasoactive drugs like TNF.
Collapse
MESH Headings
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Antibiotics, Antineoplastic/pharmacokinetics
- Antibiotics, Antineoplastic/pharmacology
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Doxorubicin/administration & dosage
- Doxorubicin/pharmacokinetics
- Doxorubicin/pharmacology
- Drug Synergism
- Female
- Liposomes/blood
- Liposomes/pharmacokinetics
- Melanoma, Experimental/blood
- Melanoma, Experimental/blood supply
- Melanoma, Experimental/drug therapy
- Melanoma, Experimental/metabolism
- Mice
- Mice, Inbred C57BL
- Neovascularization, Pathologic/blood
- Neovascularization, Pathologic/pathology
- Tumor Necrosis Factor-alpha/administration & dosage
- Tumor Necrosis Factor-alpha/pharmacology
Collapse
Affiliation(s)
- Ann L B Seynhaeve
- Department of Surgical Oncology, Erasmus MC-Daniel den Hoed Cancer Center, Rotterdam, the Netherlands
| | | | | | | | | | | | | | | |
Collapse
|
33
|
van Horssen R, Ten Hagen TLM, Eggermont AMM. TNF-alpha in cancer treatment: molecular insights, antitumor effects, and clinical utility. Oncologist 2006; 11:397-408. [PMID: 16614236 DOI: 10.1634/theoncologist.11-4-397] [Citation(s) in RCA: 520] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Tumor necrosis factor alpha (TNF-alpha), isolated 30 years ago, is a multifunctional cytokine playing a key role in apoptosis and cell survival as well as in inflammation and immunity. Although named for its antitumor properties, TNF has been implicated in a wide spectrum of other diseases. The current use of TNF in cancer is in the regional treatment of locally advanced soft tissue sarcomas and metastatic melanomas and other irresectable tumors of any histology to avoid amputation of the limb. It has been demonstrated in the isolated limb perfusion setting that TNF-alpha acts synergistically with cytostatic drugs. The interaction of TNF-alpha with TNF receptor 1 and receptor 2 (TNFR-1, TNFR-2) activates several signal transduction pathways, leading to the diverse functions of TNF-alpha. The signaling molecules of TNFR-1 have been elucidated quite well, but regulation of the signaling remains unclear. Besides these molecular insights, laboratory experiments in the past decade have shed light upon TNF-alpha action during tumor treatment. Besides extravasation of erythrocytes and lymphocytes, leading to hemorrhagic necrosis, TNF-alpha targets the tumor-associated vasculature (TAV) by inducing hyperpermeability and destruction of the vascular lining. This results in an immediate effect of selective accumulation of cytostatic drugs inside the tumor and a late effect of destruction of the tumor vasculature. In this review, covering TNF-alpha from the molecule to the clinic, we provide an overview of the use of TNF-alpha in cancer starting with molecular insights into TNFR-1 signaling and cellular mechanisms of the antitumor activities of TNF-alpha and ending with clinical response. In addition, possible factors modulating TNF-alpha actions are discussed.
Collapse
Affiliation(s)
- Remco van Horssen
- Department of Surgical Oncology, Erasmus MC--Daniel den Hoed Cancer Center, Rotterdam, The Netherlands
| | | | | |
Collapse
|
34
|
|
35
|
Altin JG, van Broekhoven CL, Parish CR. Targeting dendritic cells with antigen-containing liposomes: antitumour immunity. Expert Opin Biol Ther 2005; 4:1735-47. [PMID: 15500402 DOI: 10.1517/14712598.4.11.1735] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Dendritic cells (DCs) are antigen-presenting cells that play an important role in the body's immune defence against cancer. Strategies using antigen-primed DCs as tumour vaccines show promise in patients, but the approach is cumbersome to use clinically. Soluble tumour antigens can be targeted to DCs in vivo, but this often induces antigenic tolerance rather than immunity. Liposomes are vesicular lipid structures with adjuvant-like properties. Importantly, liposomes can encapsulate antigen and immunomodulatory factors, thus serving as potent delivery vehicles. Different strategies are being explored to target liposomal antigens to DCs in vivo. One approach has employed single-chain antibody fragments to the DC surface molecules CD11c and DEC-205, attached to the vesicle surface by metal-chelating linkage, to target liposomal membranes containing antigen and either interferon-gamma or lipopolysaccharide to DCs. Such membranes induce dramatic antitumour responses and immunotherapeutic effects when used as a vaccine in the murine tumour model B16-OVA melanoma. Liposomal targeting of antigen and maturation signals directly to DCs in vivo, therefore, represents a much simpler strategy for cancer immunotherapy than antigen loading DCs ex vivo.
Collapse
Affiliation(s)
- Joseph G Altin
- The Australian National University, School of Biochemistry and Molecular Biology, Faculty of Science, Canberra, ACT 0200, Australia.
| | | | | |
Collapse
|
36
|
Abstract
Despite of the demonstrated activity of cytokines in vitro, their use in the clinical setting is often disappointing. Cytokine-related toxicity seriously limits optimal use in vivo. In addition, rapid degradation and excretion, neutralization and binding to receptors, or metabolization of the molecule results in a short half-life in serum when injected intravenously. As the dose-response curve of cytokines is relatively steep, outcome greatly benefits from improved delivery and bioavailability. One way to improve the pharmacokinetics of cytokines after systemic application is encapsulation in liposomes. An advantage of liposomes is that the encapsulated drug is protected from (rapid) degradation and excretion, and it eliminates the binding to neutralizing antibodies or (soluble) receptors. Moreover, liposomes can be tailored in such a way that they exhibit favorable pharmacokinetics, i.e., increased serum half-life and improved targeting to tissues or cells of interest. In this chapter, the use of liposomal cytokines in the treatment of cancer and infectious disease is discussed.
Collapse
Affiliation(s)
- Timo L M ten Hagen
- Department of Surgical Oncology, Erasmus University Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|
37
|
Brouckaert P, Takahashi N, van Tiel ST, Hostens J, Eggermont AMM, Seynhaeve ALB, Fiers W, ten Hagen TLM. Tumor necrosis factor-alpha augmented tumor response in B16BL6 melanoma-bearing mice treated with stealth liposomal doxorubicin (Doxil) correlates with altered Doxil pharmacokinetics. Int J Cancer 2004; 109:442-8. [PMID: 14961585 DOI: 10.1002/ijc.11703] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The application of tumor necrosis factor-alpha (TNF) for the treatment of solid tumors is limited by its severe, life-threatening, toxicity. Therefore, only low dosages of this cytokine can be applied systemically, which results in poor tumor response. It has been demonstrated previously that administration of high-dose TNF in a so-called isolated perfusion system markedly improved tumor response when combined with chemotherapy. It appeared that TNF had a major impact specifically on the tumor-associated vasculature. At these high concentrations, endothelial cell death is induced by TNF, resulting in complete collapse of the tumor vascular bed. Strikingly, this effect alone is not enough to induce a tumor response, but addition of a chemotherapeutic drug is mandatory to obtain an anti-tumor effect. We showed that TNF has no anti-tumor effect by itself but augmented drug accumulation mainly in the tumor, most likely by enhancing vascular leakage. It seems that enhanced vascular leakage, but not endothelial cell death, explains the interaction between TNF and the co-administered drug. We hypothesized that in a low-dose setting TNF could induce tumor accumulation of chemotherapeutic drugs and consequently improve tumor response. We demonstrate that free TNF has a strong effect on the pharmacokinetics of co-administered Doxil in B16BL6 melanoma-bearing mice, resulting in strongly augmented drug accumulation in the tumor and improved tumor response. Co-injection of Stealth liposomal TNF with Doxil resulted in comparable or less pronounced tumor responses as compared to free TNF. These results imply that systemic application of clinically tolerable doses of TNF may improve drug distribution and tumor response and could be useful in a number of anti-cancer therapies.
Collapse
Affiliation(s)
- Peter Brouckaert
- Department of Molecular Biology, Flanders Interuniversity Institute of Biotechnology, Ghent University, Ghent, Belgium
| | | | | | | | | | | | | | | |
Collapse
|
38
|
McDonald DM, Teicher BA, Stetler-Stevenson W, Ng SSW, Figg WD, Folkman J, Hanahan D, Auerbach R, O'Reilly M, Herbst R, Cheresh D, Gordon M, Eggermont A, Libutti SK. Report from the Society for Biological Therapy and Vascular Biology Faculty of the NCI Workshop on Angiogenesis Monitoring. J Immunother 2004; 27:161-75. [PMID: 14770088 DOI: 10.1097/00002371-200403000-00010] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The field of tumor angiogenesis has seen explosive growth over the last 5 years. Preclinical as well as early clinical evaluation of novel compounds is progressing at a rapid pace. To gain a perspective on the field and to take stock of advances in the understanding of molecular mechanisms underlying the process of tumor angiogenesis as well as ways of monitoring the activity of agents, the Society for Biologic Therapy and the National Cancer Institute's Vascular Biology Faculty convened a Workshop on Angiogenesis Monitoring in November 2002. The Workshop was composed of invited speakers and participants from academia, industry, and government. It was divided into 3 sessions, each chaired by leaders in the field. The first focused on advances in the understanding of the cellular and molecular mechanisms of angiogenesis in tumors. The second examined preclinical assay systems that are useful in vascular biology. The third addressed the translation to the clinic and monitoring of antiangiogenic activity of agents in patients and novel trial designs. What follows is a summary of the discussions and findings of each session.
Collapse
|
39
|
Collis SJ, Khater K, DeWeese TL. Novel therapeutic strategies in prostate cancer management using gene therapy in combination with radiation therapy. World J Urol 2003; 21:275-89. [PMID: 12920560 DOI: 10.1007/s00345-003-0363-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2003] [Accepted: 07/07/2003] [Indexed: 12/01/2022] Open
Affiliation(s)
- Spencer J Collis
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | | | | |
Collapse
|
40
|
Nowak AK, Lake RA, Marzo AL, Scott B, Heath WR, Collins EJ, Frelinger JA, Robinson BWS. Induction of tumor cell apoptosis in vivo increases tumor antigen cross-presentation, cross-priming rather than cross-tolerizing host tumor-specific CD8 T cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2003; 170:4905-13. [PMID: 12734333 DOI: 10.4049/jimmunol.170.10.4905] [Citation(s) in RCA: 349] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cross-presentation of cell-bound Ags from established, solid tumors to CD8 cells is efficient and likely to have a role in determining host response to tumor. A number of investigators have predicted that when tumor Ags are derived from apoptotic cells either no response, due to Ag "sequestration," or CD8 cross-tolerance would ensue. Because the crucial issue of whether this happens in vivo has never been addressed, we induced apoptosis of established hemagglutinin (HA)-transfected AB1 tumors in BALB/c mice using the apoptosis-inducing reagent gemcitabine. This shrank the tumor by approximately 80%. This induction of apoptosis increased cross-presentation of HA to CD8 cells yet neither gross deletion nor functional tolerance of HA-specific CD8 cells were observed, based on tetramer analysis, proliferation of specific CD8 T cells, and in vivo CTL activity. Interestingly, apoptosis primed the host for a strong antitumor response to a second, virus-generated HA-specific signal in that administration of an HA-expressing virus after gemcitabine administration markedly decreased tumor growth compared with viral administration without gemcitabine. Thus tumor cell apoptosis in vivo neither sequesters tumor Ags nor cross-tolerizes tumor-specific CD8 cells. This observation has fundamental consequences for the development of tumor immunotherapy protocols and for understanding T cell reactivity to tumors and the in vivo immune responses to apoptotic cells.
Collapse
MESH Headings
- Animals
- Antigen Presentation/drug effects
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/metabolism
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/metabolism
- Apoptosis/drug effects
- Apoptosis/immunology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Clonal Anergy/drug effects
- Clonal Anergy/immunology
- Clonal Deletion/drug effects
- Clonal Deletion/immunology
- Cytotoxicity, Immunologic/drug effects
- Deoxycytidine/administration & dosage
- Deoxycytidine/analogs & derivatives
- Dose-Response Relationship, Immunologic
- Epitopes, T-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/metabolism
- Growth Inhibitors/administration & dosage
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/metabolism
- Immunization
- Injections, Intraperitoneal
- Mesothelioma/drug therapy
- Mesothelioma/immunology
- Mesothelioma/pathology
- Mesothelioma/prevention & control
- Mice
- Mice, Inbred BALB C
- Mice, Transgenic
- Tumor Cells, Cultured
- Up-Regulation/drug effects
- Up-Regulation/immunology
- Gemcitabine
Collapse
Affiliation(s)
- Anna K Nowak
- Tumor Immunology Group, Department of Medicine, University of Western Australia and Western Australian Institute of Medical Research, Perth, Australia
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Nicolazzi C, Mignet N, de la Figuera N, Cadet M, Ibad RT, Seguin J, Scherman D, Bessodes M. Anionic polyethyleneglycol lipids added to cationic lipoplexes increase their plasmatic circulation time. J Control Release 2003; 88:429-43. [PMID: 12644368 DOI: 10.1016/s0168-3659(03)00067-1] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cationic liposomes have been widely sensed as good DNA compacting delivery agents. Although their use generally met with encouraging results in vitro, the results in vivo were rather disappointing, as they strongly interact with the blood components before they can reach the therapeutic target. Polyethyleneglycol (PEG) shielding has been proposed as a way to alleviate this effect, but was still found unsatisfactory in most instances for systemic administration. We demonstrate here that the insertion of anionic functions between the lipid part and the PEG, at a correct distance to favor electrostatic interactions with the outer cationic layer of the lipoplexes, provides not only a decrease in the mean peripheral charge of the lipoplex (zeta potential), but also a greater colloidal stability of the particles in the presence of serum. Transfection in the lung is also decreased with negatively charged PEG shielding, although no significant changes are observed in the tumor. This encouraging new approach should consequently be combined with active extra-cellular receptor targeting to achieve the desired delivery of the therapeutic DNA to tumor tissues.
Collapse
Affiliation(s)
- Céline Nicolazzi
- CNRS-UMR7001/ENSCP/Gencell S A, Aventis Pharma, 13 Quai Jules Guesdes 94403, Vitry/Seine, France
| | | | | | | | | | | | | | | |
Collapse
|
42
|
ten Hagen TLM, Eggermont AMM. Manipulation of the tumour-associated vasculature to improve tumour therapy. J Liposome Res 2002; 12:149-54. [PMID: 12604049 DOI: 10.1081/lpr-120004788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Inhibition of tumour vascular growth, destruction of the tumour associated vasculature (TAV), and manipulation of the endothelial lining of the TAV provide powerful tools for anti-tumour therapy. We previously demonstrated that addition of TNF to chemotherapy improved tumour response. The major effect of TNF is an increased permeability of the tumour vascular bed resulting in augmented accumulation of co-administered drug in the tumour. As the TAV is recognised as a major candidate in tumour therapy it is becoming important to understand anti-vascular effects better. In our laboratory we examine the effect of immunotherapy on the TAV, and the effect of anti tumour-vascular therapy on tumours. This is studied in animal models, which exhibit similarities with the clinical setting, such as tumour perfusion treatment.
Collapse
Affiliation(s)
- Timo L M ten Hagen
- Dept of Surgical Oncology, Laboratory for Experimental Surgical Oncology, Erasmus University Rotterdam, The Netherlands
| | | |
Collapse
|