title: Mesoporous Carbon Nanospheres Featured Fluorescent Aptasensor for Multiple Diagnosis of Cancer in Vitro and in Vivo.
abstract: Multiple diagnosis of cancer by a facile fluorescent sensor is extremely attractive. Herein, a Cy3-labeled ssDNA probe (P0-Cy3) was π-π stacked on the surface of oxidized mesoporous carbon nanospheres (OMCN) to construct the fluorescent "turn-on" aptasensor. Attributing to the intrinsic properties of OMCN, the OMCN-based aptasensor not only can be used to detect mucin1 protein in liquid with a wide range of 0.1-10.6 μmol/L, a low detection limit of 6.52 nmol/L, and good selectivity, but also can quantify the cancer cells in solution with the linear range of 10(4)-2 × 10(6) cells/mL and a detection limit of 8500 cells/mL. Fascinatingly, this OMCN-based aptasensor was exploited to image cancer via solid tissues such as cells, tissue sections, and ex vivo and in vivo tumors, in which the obvious distinguishability between cancer and normal tissues was clearly demonstrated. This is a robust and simple detection technique, which can well achieve the multiple diagnosis of cancer in vitro and in vivo.
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Chengyi
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Meng
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Min
authors.initials: M
authors.lastname: Qian
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Jianxin
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Weiyue
authors.initials: W
authors.lastname: Lu
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China.
authors.forename: Rongqin
authors.initials: R
authors.lastname: Huang
mesh_terms: D000818:Animals; D052157:Aptamers, Nucleotide / Q000737:chemistry*; D014408:Biomarkers, Tumor / Q000032:analysis*; D015374:Biosensing Techniques / Q000379:methods*; D002244:Carbon / Q000737:chemistry*; D045744:Cell Line, Tumor; D005260:Female; D005456:Fluorescent Dyes / Q000737:chemistry*; D006801:Humans; D057230:Limit of Detection; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D018396:Mucin-1 / Q000032:analysis; D054118:Nanospheres / Q000737:chemistry*; D009369:Neoplasms / Q000175:diagnosis*; D016062:Porosity
chemical_list: D052157:Aptamers, Nucleotide; D014408:Biomarkers, Tumor; D005456:Fluorescent Dyes; D018396:Mucin-1; D002244:Carbon
keywords: aptasensor; fluorescent imaging; mesoropous carbon nanospheres; mucin1; multiple diagnosis