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Bhandari C, Moffat A, Shah N, Khan A, Quaye M, Fakhry J, Soma S, Nguyen A, Eroy M, Malkoochi A, Brekken R, Hasan T, Ferruzzi J, Obaid G. PD-L1 Immune Checkpoint Targeted Photoactivable Liposomes (iTPALs) Prime the Stroma of Pancreatic Tumors and Promote Self-Delivery. Adv Healthc Mater 2024:e2304340. [PMID: 38324463 DOI: 10.1002/adhm.202304340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Indexed: 02/09/2024]
Abstract
Desmoplasia in pancreatic ductal adenocarcinoma (PDAC) limits the penetration and efficacy of therapies. It has been previously shown that photodynamic priming (PDP) using EGFR targeted photoactivable multi-inhibitor liposomes remediates desmoplasia in PDAC and doubles overall survival. Here, bifunctional PD-L1 immune checkpoint targeted photoactivable liposomes (iTPALs) that mediate both PDP and PD-L1 blockade are presented. iTPALs also improve phototoxicity in PDAC cells and induce immunogenic cell death. PDP using iTPALs reduces collagen density, thereby promoting self-delivery by 5.4-fold in collagen hydrogels, and by 2.4-fold in syngeneic CT1BA5 murine PDAC tumors. PDP also reduces tumor fibroblast content by 39.4%. Importantly, iTPALs also block the PD-1/PD-L1 immune checkpoint more efficiently than free α-PD-L1 antibodies. Only a single sub-curative priming dose using iTPALs provides 54.1% tumor growth inhibition and prolongs overall survival in mice by 42.9%. Overall survival directly correlates with the extent of tumor iTPAL self-delivery following PDP (Pearson's r = 0.670, p = 0.034), while no relationship is found for sham non-specific IgG constructs activated with light. When applied over multiple cycles, as is typical for immune checkpoint therapy, PDP using iTPALs promises to offer durable tumor growth delay and significant survival benefit in PDAC patients, especially when used to promote self-delivery of integrated chemo-immunotherapy regimens.
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Affiliation(s)
- Chanda Bhandari
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Azophi Moffat
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Nimit Shah
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Adil Khan
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Maxwell Quaye
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - John Fakhry
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Siddharth Soma
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Austin Nguyen
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Menitte Eroy
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Ashritha Malkoochi
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Rolf Brekken
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
- Cancer Biology Graduate Program, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
- Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jacopo Ferruzzi
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Girgis Obaid
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, 75080, USA
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Su MC, Nethi SK, Dhanyamraju PK, Prabha S. Nanomedicine Strategies for Targeting Tumor Stroma. Cancers (Basel) 2023; 15:4145. [PMID: 37627173 PMCID: PMC10452920 DOI: 10.3390/cancers15164145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
The tumor stroma, or the microenvironment surrounding solid tumors, can significantly impact the effectiveness of cancer therapies. The tumor microenvironment is characterized by high interstitial pressure, a consequence of leaky vasculature, and dense stroma created by excessive deposition of various macromolecules such as collagen, fibronectin, and hyaluronic acid (HA). In addition, non-cancerous cells such as cancer-associated fibroblasts (CAFs) and the extracellular matrix (ECM) itself can promote tumor growth. In recent years, there has been increased interest in combining standard cancer treatments with stromal-targeting strategies or stromal modulators to improve therapeutic outcomes. Furthermore, the use of nanomedicine, which can improve the delivery and retention of drugs in the tumor, has been proposed to target the stroma. This review focuses on how different stromal components contribute to tumor progression and impede chemotherapeutic delivery. Additionally, this review highlights recent advancements in nanomedicine-based stromal modulation and discusses potential future directions for developing more effective stroma-targeted cancer therapies.
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Affiliation(s)
- Mei-Chi Su
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Susheel Kumar Nethi
- Nanovaccine Institute, Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011, USA;
| | - Pavan Kumar Dhanyamraju
- Fels Cancer Institute of Personalized Medicine, Lewis-Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
| | - Swayam Prabha
- Fels Cancer Institute of Personalized Medicine, Lewis-Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
- Department of Cancer and Cellular Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
- Cancer Signaling and Microenvironment Program, Fox Chase Cancer Center, Temple University, Philadelphia, PA 19111, USA
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Tanaka HY, Nakazawa T, Enomoto A, Masamune A, Kano MR. Therapeutic Strategies to Overcome Fibrotic Barriers to Nanomedicine in the Pancreatic Tumor Microenvironment. Cancers (Basel) 2023; 15:cancers15030724. [PMID: 36765684 PMCID: PMC9913712 DOI: 10.3390/cancers15030724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/19/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Pancreatic cancer is notorious for its dismal prognosis. The enhanced permeability and retention (EPR) effect theory posits that nanomedicines (therapeutics in the size range of approximately 10-200 nm) selectively accumulate in tumors. Nanomedicine has thus been suggested to be the "magic bullet"-both effective and safe-to treat pancreatic cancer. However, the densely fibrotic tumor microenvironment of pancreatic cancer impedes nanomedicine delivery. The EPR effect is thus insufficient to achieve a significant therapeutic effect. Intratumoral fibrosis is chiefly driven by aberrantly activated fibroblasts and the extracellular matrix (ECM) components secreted. Fibroblast and ECM abnormalities offer various potential targets for therapeutic intervention. In this review, we detail the diverse strategies being tested to overcome the fibrotic barriers to nanomedicine in pancreatic cancer. Strategies that target the fibrotic tissue/process are discussed first, which are followed by strategies to optimize nanomedicine design. We provide an overview of how a deeper understanding, increasingly at single-cell resolution, of fibroblast biology is revealing the complex role of the fibrotic stroma in pancreatic cancer pathogenesis and consider the therapeutic implications. Finally, we discuss critical gaps in our understanding and how we might better formulate strategies to successfully overcome the fibrotic barriers in pancreatic cancer.
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Affiliation(s)
- Hiroyoshi Y. Tanaka
- Department of Pharmaceutical Biomedicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Takuya Nakazawa
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Atsushi Enomoto
- Department of Pathology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya-shi 466-8550, Aichi, Japan
| | - Atsushi Masamune
- Division of Gastroenterology, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai-shi 980-8574, Miyagi, Japan
| | - Mitsunobu R. Kano
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
- Correspondence:
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Liu Y, Wu X, Chen F, Li H, Wang T, Liu N, Sun K, Zhou G, Tao K. Modulating cancer-stroma crosstalk by a nanoparticle-based photodynamic method to pave the way for subsequent therapies. Biomaterials 2022; 289:121813. [PMID: 36152513 DOI: 10.1016/j.biomaterials.2022.121813] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/02/2022]
Abstract
Cancer cells and their stromal microenvironment are mutually supportive. Either destroying cancer cells or damaging stromal components cannot guarantee a satisfactory outcome in the long-term treatment. Herein, we showed that the tumor-stroma crosstalk was disturbed by nanoparticle-based photodynamic therapy (PDT) in pancreatic tumor models, leading to the persistent inhibition of extracellular matrix (ECM) secretion and the enhanced therapeutic effect. By employing a conditioned medium method, we found that the nanoparticulate PDT at a sub-lethal dosage down-regulated TGFβ signaling pathways, leading to the decrease in drug resistance, proliferation, and migration of the cancer cells. Meanwhile, pancreatic stellate cells (PSCs) were inactivated by PDT, hindering the secretion of ECM. Combining the results that PDT indiscriminately killed PSCs and cancer cells, we showed that the mutual support between the cancer cells and the stroma was interrupted. We further presented the inhibition of the crosstalk persistently enhanced tumor penetration in stroma-rich pancreatic tumor models. The loosened stroma not only facilitated tumor eradication by subsequent therapy but also improved the efficiency of gemcitabine treatment on monthly later recurrent tumors. Therefore, our work may boost the potential of PDT to be a valuable individual or adjuvant treatment for desmoplastic cancers.
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Affiliation(s)
- Yan Liu
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Xiaodi Wu
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong, 261042, PR China
| | - Feifan Chen
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong, 261042, PR China
| | - Hao Li
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, PR China
| | - Tao Wang
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong, 261042, PR China
| | - Ningning Liu
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Kang Sun
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Guangdong Zhou
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong, 261042, PR China.
| | - Ke Tao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
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