TY - JOUR ID - open3319 UR - http://crdd.osdd.net/open/3319/ IS - 1 A1 - Khajuria, Akhil A1 - Alajangi, Hema K A1 - Sharma, Akanksha A1 - Kaur, Harinder A1 - Sharma, Prakriti A1 - Negi, Sushmita A1 - Kumari, Laxmi A1 - Trivedi, Manisha A1 - Yadav, Ashok Kumar A1 - Kumar, Robin A1 - Raghuvanshi, Rajeev Singh A1 - Kaur, Indu Pal A1 - Tyagi, Rajeev K A1 - Jaiswal, Pradeep Kumar A1 - Lim, Yong-Beom A1 - Barnwal, Ravi Pratap A1 - Singh, Gurpal Y1 - 2024/09// N2 - Breast cancer is one of the leading causes of death among women globally, making its diagnosis and treatment challenging. The use of nanotechnology for cancer diagnosis and treatment is an emerging area of research. To address this issue, multiwalled carbon nanotubes (MWCNTs) were ligand exchanged with butyric acid (BA) to gain hydrophilic character. The successful functionalization was confirmed by FTIR spectroscopy. Surface morphology changes were observed using SEM, while TEM confirmed the structural integrity of the MWCNTs after functionalization. Particle size, zeta potential, and UV spectroscopy were also performed to further characterize the nanoparticles. The breast cancer aptamer specific to Mucin-1 (MUC-1) was then conjugated with the functionalized MWCNTs. These MWCNTs successfully targeted breast cancer cells (MDA-MB-231) as examined by cellular uptake studies and exhibited a reduction in cancer-induced inflammation, as evidenced by gene transcription (qPCR) and protein expression (immunoblotting) levels. Immunoblot and confocal-based immunofluorescence assay (IFA) indicated the ability of CNTs to induce photothermal cell death of MDA-MB-231 cells. Upon imaging, cancer cells were effectively visualized due to the MWCNTs' ability to act as magnetic resonance imaging (MRI) contrast agents. Additionally, MWCNTs demonstrated photothermal capabilities to eliminate bound cancer cells. Collectively, our findings pave the way for developing aptamer-labeled MWCNTs as viable ``theranostic alternatives'' for breast cancer treatment. PB - Springer Science and Business Media LLC JF - Discov. Nano VL - 19 KW - Aptamer; Breast cancer; MWCNT; Mucin; Nanotechnology; Theranostics TI - Theranostics: aptamer-assisted carbon nanotubes as MRI contrast and photothermal agent for breast cancer therapy ER -