Table 3 Examples of chemosensitizers of ABC transporters isolated from natural sources (marine organisms, insects, and fungi)

ABCB1

Agosterol A and derivatives

Marine organisms

(Mitsuo et al. 2003; Aoki et al. 1999)

Kendarimide A

(Aoki et al. 2004)

Polyoxygenated steroids

(Tanaka et al. 2002)

Sipholane triterpenoid

(Shi et al. 2007a; Jain et al. 2007)

Cantharidin trepene

Insect

(Zheng et al. 2008)

Tryprostatin A

Fungus

(Woehlecke et al. 2003)

Tryptanthrin

(Yu et al. 2007)

ABCG2

Fumitremorgin C

Fungus

(Rabindran et al. 2000; Robey et al. 2001)