PMID- 31211520 OWN - NLM STAT- MEDLINE DCOM- 20200819 LR - 20200819 IS - 2192-2659 (Electronic) IS - 2192-2640 (Linking) VI - 8 IP - 15 DP - 2019 Aug TI - pH-Triggered Conformational Change of Antp-Based Drug Delivery Platform for Tumor Treatment with Combined Photothermal Therapy and Chemotherapy. PG - e1900306 LID - 10.1002/adhm.201900306 [doi] AB - Poor cellular uptake and low therapeutic efficacy of small-molecule antitumor drugs limit the application of drug delivery systems (DDSs) in cancer therapy. A conformational change of the Antp mimetic peptide (AMP) in tumor microenvironments can greatly increase the cellular uptake as well as control drug release from a DDS. In this study, AMP-based nanoparticles (AMP-NPs) conjugated with tyroserleutide (YSL), an immunologically therapeutic tripeptide, are designed to encapsulate doxorubicin (Dox) and indocyanine green (ICG) to improve cellular uptake and cancer therapeutic efficacy by combining chemotherapy with photothermal therapy. In vitro studies verify that AMP-NPs can control the release of Dox and YSL at different pH values. Cell experiments show that AMP-NPs can promote the cellular uptake of Dox, and YSL can promote hepatocarcinoma cell (H22) apoptosis through downregulating Bcl-2 and cyclin D1 expression. In a mouse xenograft model using H22 cells, tumors are ablated when Dox- and ICG-loaded AMP-NPs are injected with the combination of hyperthermia effect induced by near-infrared (NIR) laser irradiation and chemotherapy from Dox and YSL. The pH-, photothermal-, and glutathione-responsive AMP-NPs with a conformational transition strategy can be utilized to synergistically enhance the cancer therapeutic efficacy with few side effects upon NIR laser irradiation. CI - (c) 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Liang, Peiqing AU - Liang P AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. FAU - Wang, Mohong AU - Wang M AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. FAU - Zhang, Shixiong AU - Zhang S AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. FAU - Wang, Jiayu AU - Wang J AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. FAU - Dai, Chunlei AU - Dai C AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. FAU - Quan, Changyun AU - Quan C AUID- ORCID: 0000-0001-9934-5348 AD - Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instruments (Sun Yat-sen University), School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China. LA - eng GR - 201804010146/Science and Technology Program of Guangzhou, China/International GR - 2016A030313341/Natural Science Foundation of Guangdong Province/International GR - 2014B020215001/Science and Technology Planning Project of Guangdong Province, China/International GR - 2016A030313341/Natural Science Foundation of Guangdong Province, China/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190618 PL - Germany TA - Adv Healthc Mater JT - Advanced healthcare materials JID - 101581613 RN - 0 (Antibiotics, Antineoplastic) RN - 0 (Antimicrobial Cationic Peptides) RN - 0 (Drug Carriers) RN - 0 (Oligopeptides) RN - 80168379AG (Doxorubicin) RN - IX6J1063HV (Indocyanine Green) RN - L9TIM50J8N (H-Tyr-Ser-Leu-OH) SB - IM MH - Animals MH - Antibiotics, Antineoplastic/chemistry/pharmacology MH - Antimicrobial Cationic Peptides/*chemistry MH - Apoptosis/drug effects MH - Cell Line, Tumor MH - Doxorubicin/chemistry/metabolism/pharmacology MH - Drug Carriers/*chemistry MH - Drug Liberation MH - Humans MH - Hydrogen-Ion Concentration MH - Indocyanine Green/chemistry/metabolism/pharmacology MH - Infrared Rays MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Nanoparticles/*chemistry/metabolism MH - Neoplasms/drug therapy/therapy MH - Oligopeptides/chemistry MH - Phototherapy MH - Tissue Distribution OTO - NOTNLM OT - Antp mimetic peptide OT - antitumor efficacy OT - chemo/photothermal therapy OT - tyroserleutide EDAT- 2019/06/19 06:00 MHDA- 2020/08/20 06:00 CRDT- 2019/06/19 06:00 PHST- 2019/03/09 00:00 [received] PHST- 2019/05/28 00:00 [revised] PHST- 2019/06/19 06:00 [pubmed] PHST- 2020/08/20 06:00 [medline] PHST- 2019/06/19 06:00 [entrez] AID - 10.1002/adhm.201900306 [doi] PST - ppublish SO - Adv Healthc Mater. 2019 Aug;8(15):e1900306. doi: 10.1002/adhm.201900306. Epub 2019 Jun 18.