Photothermal therapy (PTT) is a method for eradicating tumor tissues through the use of photothermal materials and photosensitizing agents that absorb light energy from laser sources and convert it into heat, which selectively targets and destroys cancer cells while sparing healthy tissue.
MXenes have been intensively investigated as photosensitizing agents for PTT. However, achieving the selectivity of MXenes to the tumor cells remains a challenge. Specific antibodies (Ab) against tumor antigens can achieve homing of the photosensitizing agents toward tumor cells, but their immobilization on MXene received little attention. Here, we offer a strategy for the selective ablation of melanoma cells using MXene-polydopamineantiCEACAM1 Ab complexes. We coated Ti3C2Tx MXene with polydopamine (PDA), a natural compound that attaches Ab to the MXene surface, followed by conjugation with an anti-CEACAM1 Ab. Our experiments confirm the biocompatibility of the Ti3C2Tx-PDA and Ti3C2Tx-PDAantiCEACAM1 Ab complexes across various cell types. We also established a protocol for the selective ablation of CEACAM1- positive melanoma cells using near-infrared irradiation. The obtained complexes exhibit high selectivity and efficiency in targeting and eliminating CEACAM1-positive melanoma cells while sparing CEACAM1-negative cells. These results demonstrate the potential of MXene-PDA-Ab complexes for cancer therapy. They underline the critical role of targeted therapies in oncology, offering a promising avenue for the precise and safe treatment of melanoma and possibly other cancers characterized by specific biomarkers. Future research will aim to refine these complexes for clinical use, paving the way for new strategies for cancer treatment.
Our study has showcased the potential of the MXene-PDAantiCEACAM1 Ab complex as a highly selective and efficient means for the targeted ablation of melanoma cells. We have introduced a cost-effective, simple, and reproducible technology for modifying Ti3C2Tx MXene using PDA, followed by a one-step mAb binding. This innovative approach represents a significant advance over previous methodologies by combining the high photothermal efficiency of MXenes with the precise targeting capability of antibodies, thereby achieving substantial cell death in CEACAM1-positive melanoma cells with a minimal impact on CEACAM1-negative cells. This strategy holds promise for mitigating the risk of damage to surrounding healthy tissues, a prevalent issue in traditional cancer therapies.
The efficacy of these complexes in selectively binding and ablating targeted cells underscores the critical role of combining nanomaterials with specific biological markers in developing targeted cancer therapies.
KEYWORDS: MXene, photothermal ablation, targeted delivery, CEACAM1, antibody immobilization, anticancer therapy
To cite: Anastasia Konieva, Volodymyr Deineka, Kateryna Diedkova, Daniel Aguilar-Ferrer, Mykola Lyndin, Gunther Wennemuth, Viktoriia Korniienko, Sergiy Kyrylenko, Alexey Lihachev, Veronika Zahorodna, Ivan Baginskiy, Emerson Coy, Oleksiy Gogotsi, Agata Blacha-Grzechnik, Wojciech Simka, Irina Kube-Golovin, Igor Iatsunskyi, and Maksym Pogorielov. MXene-Polydopamine-antiCEACAM1 Antibody Complex as a Strategy for Targeted Ablation of Melanoma. ACS Applied Materials & Interfaces 2024 16 (33), 43302-43316 DOI: 10.1021/acsami.4c08129
Read more about this work in ACS Appl. Mater. Interfaces: https://pubs.acs.org/doi/full/10.1021/acsami.4c08129
Other recent papers:
| Novel electrically conductive electrospun PCL‑MXene scaffolds for cardiac tissue regeneration |
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Here we demonstrate a new developed method for depositing Ti3C2Tx MXenes onto hydrophobic electrospun PCL membranes using oxygen plasma treatment. These novel patches hold tremendous potential for providing mechanical support to damaged heart tissue and enabling electrical signal transmission,thereby mimicking the crucial electroconductivity required for normal cardiac function. | MXene Functionalized Kevlar Yarn via Automated, Continuous Dip Coating |
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The rise of the Internet of Things has spurred extensive research on integrating conductive materials into textiles to turn them into sensors, antennas, energy storage devices, and heaters. MXenes, owing to their high electrical conductivity and solution processability, offer an efficient way to add conductivity and electronic functions to textiles. Here, a versatile automated yarn dip coater tailored for producing continuously high-quality MXene-coated yarns and conducted the most comprehensive MXene-yarn dip coating study to date is developed.
Dr. Oleksiy Gogotsi, director of MRC and Carbon-Ukraine, innovative companies that are among the leaders on the world MXene market, visited 2024 MRS Fall Meeting & Exhibit. together with Dr. Maksym Pogorielov, Head of Advanced Biomaterials and Biophysics Laboratory, University of Latvia.
MRC and Carbon-Ukraine team visited the 3rd International MXene conference held at Drexel University on August 5-8, 2024. Conference brought together the best reserchers and leading experts on MXene field. 
MX-MAP project participants from MRC Dr. Oleksiy Gogotsi and Veronika Zahorodna performed split secondment visit to project partner organization University of Padova (Italy). MX-MAP project works on development of the key strategies for MXene medical applications. 
CanbioSe Project Meeting and Project Workshop was held at European Institute of Membranes (IEM), University of Montpellier, France on September 26-27, 2023. The workshop was focused on the theme of "Commercializing Biosensors, Intellectual Property, and Knowledge Transfer from Academia to Industry.
Dr. Oleksiy Gogotsi and Veronika Zahorodna visited IEEE NAP 2023 conference held in Bratislava on September 10-15, 2023. The prime focus of the IEEE NAP-2023 was on nanoscale materials with emphasis on interdisciplinary research exploring and exploiting their unique physical and chemical proprieties for practical applications.
Director of MRC and Carbon-Ukraine Dr. Oleksiy Gogotsi visited CEST labs in Wiener Neustadt (Low Energy Ion Scattering, Batteries development) and TU Vienna (ELSA, SFA). He meet with Dr. Pierluigi Bilotto, Dr. Chriatian Pichler and their colleagues, discussing novel materials and r&d activities for new technologies.
MX-MAP Session was held during the YUCOMAT Conference 2023 titled: "Towards MXenes’ biomedical applications by high-dimensional immune MAPping", HORIZON-MSCA-2021-SE-01 project MX-MAP.
CANBIOSE project participants from MRC Dr. Oleksiy Gogotsi and Veronika Zahorodna performed secondment visit to project partner organization European Institute of Membranes in Montpellier (France) on August -September 2023.