The invention discloses a pharmaceutical composition for reversing
pancreatic cancer gemcitabine drug resistance and application of the pharmaceutical composition, and belongs to the technical field of biological
medicine. The composition comprises a generic FGFR inhibitor delatinib and
gemcitabine, the concentration of the delatinib is 25 to 50 mg / kg, and the concentration of the
gemcitabine is 20 to 30 mg / kg. By inhibiting an FGFR2 / FGFR3
signal channel and reducing the expression of FGFR
protein in
drug-resistant cells, the chemosensitivity of gemcitabine is synergistically enhanced, the
apoptosis induction rate is increased by more than two times, and the synergic index (CI) is less than 1. In-vitro and
nude mouse transplantation tumor experiments prove that the composition can significantly inhibit the proliferation of gemcitabine
drug-resistant
pancreatic cancer cells. The
Gemcitabine drug-resistant
pancreatic cancer drug can be used for preparing a drug for treating
Gemcitabine drug-resistant pancreatic
cancer with high FGFR3 expression, patients are screened through
immunohistochemistry or
gene sequencing, intravenous injection or
oral administration is adopted, dosage forms comprise freeze-dried
powder injection, capsules or tablets, and a new strategy is provided for pancreatic
cancer drug-resistant treatment.