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Super-sensitive bifunctional nanoprobe: Self-assembly of peptide-driven nanoparticles demonstrating tumor fluorescence imaging and therapy

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Acta Pharmaceutica Sinica B 2022年第3期12卷 1473-1486页

作者： Han Xiao Rui Zhang Xiaobo Fan Xinglu Jiang Mingyuan Zou Xuejiao Yan Haiping Hao Guoqiu Wu Medical School Southeast UniversityNanjing 210009China Department of Clinical Laboratory the Fifth Affiliated Hospital of Sun Yat-sen UniversityNanjing 210009China Department of Cardiology the Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical UniversityNanjing 210009China State Key Laboratory of Natural Medicines Key Lab of Drug Metabolism and PharmacokineticsChina Pharmaceutical UniversityZhuhai 519000China Center of Clinical Laboratory Medicine Zhongda HospitalSoutheast UniversityNanjing 21009China Jiangsu Provincial Key Laboratory of Critical Care Medicine Southeast UniversityChangzhou 213000China

The development of nanomedicine has recently achieved several breakthroughs in the field of cancer treatment;however,biocompatibility and targeted penetration of these nanomaterials remain as limitations,which lead to serious side effects and significantly narrow the scope of their *** self-assembly of intermediate filaments with arginine-glycine-aspartate(RGD)peptide(RGDIFP)was triggered by the hydrophobic cationic molecule 7-amino actinomycin D(7-AAD)to synthesize a bifunctional nanoparticle that could serve as a fluorescent imaging probe to visualize tumor *** designed RGD-IFP peptide possessed the ability to encapsulate 7-AAD molecules through the formation of hydrogen bonds and hydrophobic interactions by a one-step *** fluorescent nanoprobe with RGD peptide could be targeted for delivery into tumor cells and released in acidic environments such as endosomes/lysosomes,ultimately inducing cytotoxicity by arresting tumor cell cycling with inserted *** is noteworthy that the RGD-IFP/7-AAD nanoprobe tail-vein injection approach demonstrated not only high tumor-targeted imaging potential,but also potent antitumor therapeutic effects in *** proposed strategy may be used in peptide-driven bifunctional nanoparticles for precise imaging and cancer therapy.

关键词： Nanoprobe 7-Amino actinomycin D intermediate filament protein Tumor image Antitumor therapy Integrin avβ3

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Bone morphogenetic protein-7 induced bone marrow stromal cells differentiate into neuron-like cells

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Neural Regeneration Research 2011年第22期6卷 1685-1690页

作者： Kuanxin Li Yuling Zhang Weishan Wang Bin He Jianhua Sun Jinbo Dong Chenhui Shi First Department of Orthopedics First Affiliated Hospital of Shihezi University Medical College Shihezi 832008 Xinjiang Uygur AutonomousReglion China Department of Scientific Education First Affiliated Hospital of Shihezi University Medical College Shihezi 832008 Xinjiang UygurAutonomous Region China

Bone morphogenetic protein-7 is widely accepted as an inducer for bone marrow stem cells differentiating into osteoblasts and chondrocytes. Whether bone marrow stromal cells differentiate into neuron-like cells remains unclear. The current study examined the presence of positive cells for intermediate filament protein and microtubule associated protein-2 in the cytoplasm of bone marrow stromal cells induced by bone morphogenetic protein-7 under an inverted microscope, while no expression of glial fibrillary acidic protein was found. Reverse transcription PCR electrophoresis also revealed a positive target band for intermediate filament protein and microtubule-associated protein 2 mRNA. These results confirmed that bone morphogenetic protein-7 induces rat bone marrow stromal cells differentiating into neuron-like cells.

关键词： bone morphogenetic protein-7 differentiation bone marrow stromal cells neuron-like cells microtubule-associated protein 2 intermediate filament protein glial fibrillary acidic protein neural regeneration

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Nestin in gastrointestinal and other cancers: Effects on cells and tumor angiogenesis

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World Journal of Gastroenterology 2011年第4期17卷 409-418页

作者： Toshiyuki Ishiwata Yoko Matsuda Zenya Naito Department of Pathology Integrative Oncological Pathology Nippon Medical School

Nestin is a class Ⅵ intermediate filament protein that was originally described as a neuronal stem cell marker during central nervous system (CNS) development, and is currently widely used in that capacity. Nestin is also expressed in non-neuronal immature or progenitor cells in normal tissues. Under pathological conditions, nestin is expressed in repair processes in the CNS, muscle, liver, and infarcted myocardium. Furthermore, increased nestin expression has been reported in various tumor cells, including CNS tumors, gastrointestinal stromal tumors, pancreatic cancer, prostate cancer, breast cancer, malignant melanoma, dermatofibrosarcoma protuberances, and thyroid tumors. Nestin is reported to correlate with aggressive growth, metastasis, and poor prognosis in some tumors; however, the roles of nestin in cancer cells have not been well characterized. Furthermore, nestin is more specifically expressed in proliferating small-sized tumor vessels in glioblastoma and gastric, colorectal, and prostate cancers than are other tumor vessel markers. These findings indicate that nestin may be a marker for newly synthesized tumor vessels and a therapeutic target for tumor angiogenesis. It has received a lot of attention recently as a cancer stem cell marker in various cancer cells including brain tumors, malignant rhabdoid tumors, and uterine, cervical, prostate, bladder, head and neck, ovarian, testicular, and pancreatic cancers. The purpose of this review is to clarify the roles of nestin in cancer cells and in tumor angiogenesis, and to examine the association between nestin and cancer stem cells. Nestin has the potential to serve as a molecular target for cancers with nestin-positive cancer cells and nestin-positive tumor vasculature.

关键词： Cancer growth intermediate filament protein Cancer invasion Tumor migration Nestin Stem cell marker Tumor angiogenesis

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