Review Article

Natural Products as Adjunctive Treatment for Pancreatic Cancer: Recent Trends and Advancements

Table 2

Summary of pharmacological studies of combination of natural products with other chemotherapeutic agents.

Combination of natural products with other chemotherapeutic agentsExperimental modelAnticancer/anticarcinogenic effectsMechanism of action
(↓downregulated)
(↑upregulated)
Reference

Combination of 12-O-tetradecanoylphorbol-13-acetate with all-trans retinoic acidPANC-1, MiaPaCa-2, and BxPC-3 pancreatic cancer cells (in vitro);
PANC-1 tumor xenografts in immunodeficient mice (in vivo)
Enhanced the inhibitory effect to pancreatic cancer cellsp21↑, caspase-3↑[36]

Combination of 12-O-tetradecanoylphorbol-13-acetate with diethyldithiocarbamatePANC-1 pancreatic cancer cells (in vitro);
PANC-1 tumor xenografts in nude mice (in vivo)
Significantly inhibited the growth of pancreatic cancer cellsNF-κB↓, Bcl-2↓[37]

Combination of parthenolide with sulindacBxPC-3, PANC-1, and MiaPaCa-2 pancreatic cancer cells (in vitro)Synergistically inhibited the growth of MiaPaCa-2 and BxPC-3 cells and additively inhibited the growth of PANC-1 cellsNF-κB↓, IκBα[38]

Combination of celecoxib with dimethylaminoparthenolidePC-1 pancreatic cancer cells xenografts (in vivo)Significantly inhibited the growth of pancreatic cancer cellsNF-κB↓, prostaglandin E2↓,
prostaglandin E2 metabolite↓
[39]

Combination of triptolide with hydroxycamptothecinMiaPaCa pancreatic cancer cells (in vitro);
MiaPaCa pancreatic cancer cells xenografts (in vivo)
Enhanced synergistic cytotoxic effect to pancreatic cancer cellsNF-κB↓, caspase-9↑, caspase-3↑[40]

Combination of sulforaphane with 17-allylamino 17-demethoxygeldanamycinMiaPaCa-2 pancreatic cancer cells (in vitro)Enhanced the inhibitory effect to pancreatic cancer cellsCaspase-3↑, Hsp90↓[41]

Combination of gossypol with BRD4770 (an HMT G9a inhibitor)PANC-1 pancreatic cancer cells (in vitro)Enhanced the cytotoxicity to p53-mutant PANC-1 cells in a synergistic mannerLC3-II↑,
autophagosome↑
[42]

Combination of Chinese herbs SPES with PC-SPESMIA, PANC-1, BxPC, ASPC, HS-766T, CaPan-2, CFPAC, and HTB-147 pancreatic cancer cells (in vitro)Exhibited significant toxicity to pancreatic cancer cells[43]

Combination of Moringa Oleifera aqueous leaf extract with cisplatinPANC-1, p34 and COLO 357 pancreatic cancer cells (in vitro)Synergistically enhanced the cytotoxic effect to pancreatic cancer cellsp65↓, p-IkBα↓, IkBα[44]