Review Article

Stingless Bee Propolis: New Insights for Anticancer Drugs

Table 2

Cell death profile and mechanisms of action induced by propolis produced by species of stingless bee on different cancer lineages.

Stingless bee speciesType of extract or isolated compoundCell lineageAssaysTypes of cell deathMechanisms of actionReferences

Trigona sp.Hydroethanolic
Ethanol/water 70/30 %
Human colon adenocarcinomas (HT-29 and Caco-2)
Murine melanoma (B16F1)
Flow cytometerApoptosisNS[56]
Melipona orbignyiHydroethanolic
Ethanol/water 80/20 %
Human leukemia (K562)Flow cytometerNecrosisNS[58]
Tetragonisca fiebrigiHydroethanolic
Ethanol/water 80/20 %
Human leukemia (K562)Flow cytometerNecrosis and apoptosisNS[55]
Trigona incisaMethanolic
Fractioned (ethyl acetate and hexane)
Colon adenocarcinoma (SW620)Flow cytometerApoptosisNS[100]
Scaptotrigona depilis
Melipona quadrifasciata anthidioides
Hydroethanolic
Ethanol/water 80/20 %
Human leukemia (K562)Flow cytometerNecrosis and apoptosisNS[36]
Plebeia droryanaHydroethanolic
Ethanol/water 80/20 %
Human leukemia (K562)Flow cytometerNecroptosis and apoptosisActivation of RIPK1 and increased caspase 3[77]
Trigona incisaCardol (5-pentadecyl resorcinol)Colon adenocarcinoma (SW620)Caspase activity, mitochondrial membrane potential, Western blottingApoptosisIncreased activity of caspases 3 and 9, PARP cleavage
Mitochondrial depolarization
ROS increase
Partial reversal of apoptosis with NAC
[71]
Scaptotrigona bipunctata
Melipona quadrifasciata anthidioides
Hydroethanolic
Ethanol/water 70/30 %
Human melanoma (SK-MEL-28)Flow cytometer
Western blotting
ApoptosisROS increase
Reduction of mitochondrial membrane potential
Decrease in BLC-2
[57]
Heterotrigona itamaEthanolicHuman cervical carcinoma (HeLa)Flow cytometerApoptosisNS[73]
Tetragonula biroiEthanolicGastric cancer (AGS, MKN-45, NUGC-4)Flow cytometer
qRT-PCR
TUNEL assay
ApoptosisPositive modulation of BAX and BAD transcription and negative modulation of BCL2L1 and BCL-2[16]
Trigona spp.Hydroethanolic
Ethanol/water 70/30 %
Breast cancer cell line (MCF7)Flow cytometerApoptosisNS[75]

NS: not studied. Mainly. Partially.