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Wang R, Kumar P, Reda M, Wallstrum AG, Crumrine NA, Ngamcherdtrakul W, Yantasee W. Nanotechnology Applications in Breast Cancer Immunotherapy. Small 2023:e2308639. [PMID: 38126905 DOI: 10.1002/smll.202308639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Next-generation cancer treatments are expected not only to target cancer cells but also to simultaneously train immune cells to combat cancer while modulating the immune-suppressive environment of tumors and hosts to ensure a robust and lasting response. Achieving this requires carriers that can codeliver multiple therapeutics to the right cancer and/or immune cells while ensuring patient safety. Nanotechnology holds great potential for addressing these challenges. This article highlights the recent advances in nanoimmunotherapeutic development, with a focus on breast cancer. While immune checkpoint inhibitors (ICIs) have achieved remarkable success and lead to cures in some cancers, their response rate in breast cancer is low. The poor response rate in solid tumors is often associated with the low infiltration of anti-cancer T cells and an immunosuppressive tumor microenvironment (TME). To enhance anti-cancer T-cell responses, nanoparticles are employed to deliver ICIs, bispecific antibodies, cytokines, and agents that induce immunogenic cancer cell death (ICD). Additionally, nanoparticles are used to manipulate various components of the TME, such as immunosuppressive myeloid cells, macrophages, dendritic cells, and fibroblasts to improve T-cell activities. Finally, this article discusses the outlook, challenges, and future directions of nanoimmunotherapeutics.
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Affiliation(s)
- Ruijie Wang
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S Bond Ave, Portland, OR, 97239, USA
| | - Pramod Kumar
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S Bond Ave, Portland, OR, 97239, USA
| | - Moataz Reda
- PDX Pharmaceuticals, 3303 S Bond Ave, CH13B, Portland, OR, 97239, USA
| | | | - Noah A Crumrine
- PDX Pharmaceuticals, 3303 S Bond Ave, CH13B, Portland, OR, 97239, USA
| | | | - Wassana Yantasee
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 S Bond Ave, Portland, OR, 97239, USA
- PDX Pharmaceuticals, 3303 S Bond Ave, CH13B, Portland, OR, 97239, USA
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Reda M, Ngamcherdtrakul W, Nelson MA, Siriwon N, Wang R, Zaidan HY, Bejan DS, Reda S, Hoang NH, Crumrine NA, Rehwaldt JPC, Bindal A, Mills GB, Gray JW, Yantasee W. Development of a nanoparticle-based immunotherapy targeting PD-L1 and PLK1 for lung cancer treatment. Nat Commun 2022; 13:4261. [PMID: 35871223 PMCID: PMC9308817 DOI: 10.1038/s41467-022-31926-9] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 07/11/2022] [Indexed: 12/14/2022] Open
Abstract
Immune checkpoint inhibitors (ICIs) targeting PD-L1 and PD-1 have improved survival in a subset of patients with advanced non-small cell lung cancer (NSCLC). However, only a minority of NSCLC patients respond to ICIs, highlighting the need for superior immunotherapy. Herein, we report on a nanoparticle-based immunotherapy termed ARAC (Antigen Release Agent and Checkpoint Inhibitor) designed to enhance the efficacy of PD-L1 inhibitor. ARAC is a nanoparticle co-delivering PLK1 inhibitor (volasertib) and PD-L1 antibody. PLK1 is a key mitotic kinase that is overexpressed in various cancers including NSCLC and drives cancer growth. Inhibition of PLK1 selectively kills cancer cells and upregulates PD-L1 expression in surviving cancer cells thereby providing opportunity for ARAC targeted delivery in a feedforward manner. ARAC reduces effective doses of volasertib and PD-L1 antibody by 5-fold in a metastatic lung tumor model (LLC-JSP) and the effect is mainly mediated by CD8+ T cells. ARAC also shows efficacy in another lung tumor model (KLN-205), which does not respond to CTLA-4 and PD-1 inhibitor combination. This study highlights a rational combination strategy to augment existing therapies by utilizing our nanoparticle platform that can load multiple cargo types at once. Only a minority of patients with non-small cell lung cancer (NSCLC) respond to immune checkpoint inhibitors. Here the authors design a nanosystem for the co-delivery of a PLK1 inhibitor and PD-L1 antibody, showing anti-tumor immune responses in preclinical lung cancer models.
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