2023
DOI: 10.1021/acsnano.3c02985
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Engineering the Intestinal Lymphatic Transport of Oral Nanoparticles to Educate Macrophages for Cancer Combined Immunotherapy

Abstract: The effectiveness of the commonly used therapy is low for treating triple-negative breast cancer (TNBC). Macrophages, accounting for up to 50% of the TNBC tumor mass, are involved in innate and adaptive immunity, which can serve as an effective weapon against TNBC via combined immunotherapy. Here, we engineered mannose and glycocholic acid-modified trimethyl chitosan (MTG) nanoparticles (NPs) encapsulating signal regulatory protein α (SIRPα) siRNA (siSIRPα, a macrophage checkpoint inhibitor) and mucin 1 (MUC1… Show more

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Cited by 13 publications
(11 citation statements)
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“…The polyethylene glycol-polycaprolactone (PEG-PCL) polymer loaded with MUC1 inhibitor and DOX exhibited reliable safety and excellent anti-tumor growth ability in ascites carcinoma murine model 130 . Signal regulatory protein α siRNA and pMUC1 (a therapeutic pDNA vaccine) encapsulated with trimethyl chitosan could accumulated in the macrophages in lymph nodes and tumor tissues via oral administration, resulting in a strong cellular immune response 131 .…”
Section: Muc1 and Treatmentmentioning
confidence: 99%
“…The polyethylene glycol-polycaprolactone (PEG-PCL) polymer loaded with MUC1 inhibitor and DOX exhibited reliable safety and excellent anti-tumor growth ability in ascites carcinoma murine model 130 . Signal regulatory protein α siRNA and pMUC1 (a therapeutic pDNA vaccine) encapsulated with trimethyl chitosan could accumulated in the macrophages in lymph nodes and tumor tissues via oral administration, resulting in a strong cellular immune response 131 .…”
Section: Muc1 and Treatmentmentioning
confidence: 99%
“…The nanoparticles blocked the signaling axis to promote M2-to-M1 repolarization . Similarly, Xu et al developed trimethyl chitosan nanoparticles modified with mannose and glycocholic acid . These nanoparticles encapsulated SIRP α-siRNA and MUC1 pDNA.…”
Section: Reversal Of the Immunosuppressive Microenvironmentmentioning
confidence: 99%
“…They accumulated within macrophages in lymph nodes and tumor tissues through the intestinal lymphatic transport pathway, leading to macrophage repolarization to the M1 phenotype and exerting a strong cellular immune response. [ 181 ]…”
Section: Targeting Cancer Treatment Resistance With Different Mechani...mentioning
confidence: 99%