Abstract
Background: Surgical resection of the lesion is the standard primary treatment of gastric
cancer. Unfortunately, most patients are already in the advanced stage of the disease when they
are diagnosed with gastric cancer. Alternative therapies, such as radiation therapy and chemotherapy,
can achieve only very limited benefits. The emergence of cancer drug resistance has always
been the major obstacle to the cure of tumors. The main goal of modern cancer pharmacology is to
determine the underlying mechanism of anticancer drugs.
Objectives: Here, we mainly review the latest research results related to the mechanism of chemotherapy
resistance in gastric cancer, the application of natural products in overcoming the chemotherapy
resistance of gastric cancer, and the new strategies currently being developed to treat tumors
based on immunotherapy and gene therapy.
Conclusion: The emergence of cancer drug resistance is the main obstacle in achieving alleviation
and final cure for gastric cancer. Mixed therapies are considered to be a possible way to overcome
chemoresistance. Natural products are the main resource for discovering new drugs specific for
treating chemoresistance, and further research is needed to clarify the mechanism of natural product
activity in patients.
Keywords:
Gastric cancer, chemoresistance, chemotherapy, multidrug resistance, overcoming chemoresistance, natural products.
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