The plant, with botanical name Miquelia dentate Bedd, is a small climbing shrub that produces the anti-cancer alkaloid -- Camptothecine (CPT). It occurs sparsely in the Madikeri Forests in Kodagu in Karnataka, the researchers reported.
The team of scientists from Ashoka Trust for Research in Ecology and Environment, Bengaluru and University of Agricultural Sciences, Bengaluru and Dharwad, who found the plant is now working on its commercial cultivation.
"The challenge however is to mass multiply this plant," Ravikanth, fellow at Suri Sehgal Centre for Biodiversity and Conservation under Ashoka Trust for Research in Ecology and Environment, Bengaluru, noted.
Camptothecine is an important anti-cancer compound extracted from several plant species belonging to Asterid clade. It is a potent inhibitor of the intra-nuclear enzyme topoisomerase-I, which is required in DNA replication and transcription.
Several semi-synthetic drugs such as Hycamtin (topotecan) and Camptostar (irinotecan or CPT 11) are derived from CPT and are currently in clinical use against ovarian, small lung and refractory ovarian cancer.
"Our aim is to see that we (India) also produce in Campthothecine both for our own use as well as for the global market," Ravikanth noted.
Several plant species producing CPT have been found in India. But the demand for CPT has resulted in extensive felling of the woody trees and plants like Nothapodytes nimmoniana, which is now on the verge of extinction and declared vulnerable.
The findings were detailed in the latest edition of Indian Journal on Biotechnology.
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