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LAMP2A regulates cisplatin resistance in colorectal cancer through mediating autophagy
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Journal Article
LAMP2A regulates cisplatin resistance in colorectal cancer through mediating autophagy
2024
Overview
Background
Drug resistance is an important constraint on clinical outcomes in advanced cancers. LAMP2A is a limiting protein in molecular chaperone-mediated autophagy. This study was aimed to explore LAMP2A function in cisplatin (cis-diamminedichloroplatinum, DDP) resistance colorectal cancer (CRC) to seek new ideas for CRC clinical treatment.
Methods
In this study, LAMP2A expression was analyzed by molecular experimental techniques,such as qRT-PCR and western blot. Then, LAMP2A in cells was interfered by cell transfection experiments. Subsequently, the function of LAMP2A on proliferation, migration, invasion, DDP sensitivity, and autophagy of CRC/DDP cells were further investigated by a series of experiments, such as CCK-8, transwell, and western blot.
Results
We revealed that LAMP2A was clearly augmented in DDP-resistant CRC and was related to poor patient prognosis. Functionally, LAMP2A insertion remarkably CRC/DDP proliferation, migration, invasion ability and DDP resistance by strengthen autophagy. In contrast, LAMP2A knockdown limited the proliferation, migration, and invasion while heightened cellular sensitivity to DDP by restraining autophagy in CRC/DDP cells. Furthermore, LAMP2A silencing was able to curb tumor formation and enhance sensitivity to DDP in vivo.
Conclusion
In summary, LAMP2A boosted malignant progression and DDP resistance in CRC/DDP cells through mediating autophagy. Clarifying LAMP2A function in DDP resistance is promising to seek cancer therapies biomarkers targeting LAMP2A activity.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
/ Antineoplastic Agents - pharmacology
/ chaperone-mediated autophagy
/ Colorectal Neoplasms - drug therapy
/ Colorectal Neoplasms - genetics
/ Colorectal Neoplasms - metabolism
/ Colorectal Neoplasms - pathology
/ Female
/ Humans
/ Lysosomal-Associated Membrane Protein 2 - genetics
/ Lysosomal-Associated Membrane Protein 2 - metabolism
/ Male
/ Medicine
/ Mice
/ Oncology
/ patients
