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TMTP1-modified Indocyanine Green-loaded Polymeric Micelles for Targeted Imaging of Cervical Cancer and Metastasis Sentinel Lymph Node in vivo

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单位: [1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Obstet & Gynecol, 1095 Jiefang Anv, Wuhan 430030, Hubei, Peoples R China; [2]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Canc Biol Res Ctr,Key Lab,Minist Educ, Wuhan, Hubei, Peoples R China; [3]Huazhong Univ Sci & Technol, Tongji Med Coll, Tongji Sch Pharm, Wuhan, Hubei, Peoples R China; [4]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Thyroid & Breast Surg, Wuhan, Hubei, Peoples R China
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关键词: TMTP1 metastasis near-infrared imaging sentinel lymph node micelles cervical cancer

摘要:
Metastasis is one of the most threatening aspects of cervical cancer. We developed a method to intraoperatively map the primary tumor, metastasis and metastatic sentinel lymph nodes (SLNs), providing real-time intraoperative guidance in cervical cancer. Methods: TMTP1, a tumor metastasis targeting peptide, was employed to modify the indocyanine green (ICG)-loaded poly (ethylene glycol)- poly (lactic-co-glycolic acid) (PEG-PLGA) micelles. The cervical cancer subcutaneous tumor model and lung metastasis model were established to determine the active targeting of ICG-loaded TMTP1-PEG-PLGA micelles (ITM) for the primary tumor and occult metastasis of cervical cancer. Human cervical cancer HeLa cells engineered by firefly luciferase were injected into the right hocks of BALB/c nude mice to develop the SLN metastasis model. The ITM and control ICG-loaded PEG-PLGA micelles (IM) were injected into the right hind footpads in the SLN metastasis model, and the migration and retention of micelles were recorded under near-infrared fluorescence. K14-HPV16 transgenic mice were also used to detect the image capability of ITM to target cancerous lesions. Results: ITM could actively target imaging of the primary tumor and cervical cancer metastasis. ITM quickly diffused from the injection site to SLNs along lymphatic capillaries and remained in the SLNs for 12 h. Moreover, ITM specifically accumulated in the tumor metastatic SLNs (T-SLNs), which could be successfully distinguished from normal SLNs (N-SLNs). Conclusion: ITM could achieve active targeting of the primary tumor, metastasis and T-SLNs, providing precise and real-time intraoperative guidance for cervical cancer.

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基金编号: 2015CB553903 2015BAI13B05 2016YFC0902901 81472444 81172468 81472783 81672581 81630060 81202061 81230038

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出版当年[2018]版:
大类 | 1 区 医学
小类 | 1 区 医学:研究与实验
最新[2025]版:
大类 | 1 区 医学
小类 | 1 区 医学:研究与实验
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出版当年[2017]版:
Q1 MEDICINE, RESEARCH & EXPERIMENTAL
最新[2023]版:
Q1 MEDICINE, RESEARCH & EXPERIMENTAL

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第一作者单位: [1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Obstet & Gynecol, 1095 Jiefang Anv, Wuhan 430030, Hubei, Peoples R China;
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通讯机构: [1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Obstet & Gynecol, 1095 Jiefang Anv, Wuhan 430030, Hubei, Peoples R China;
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