Phytochemical composition and antitumor activity of a new arctic lichen Anamylopsora pakistanica ...

• Main Authors: Đukić, Vojislav, Usman, Muhammad, Khalid, Abdul Nasir, Manojlović, Anja, Zarić, Milan, Čanović, Petar, Živković-Zarić, Radica, Manojlović, Nedeljko
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2024
• Subjects: Biochemistry; Microbiology; FOS Biological sciences; Cell Biology; Pharmacology; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Cancer; Plant Biology; Arctic lichen
• Online Access: https://dx.doi.org/10.6084/m9.figshare.26083613; https://tandf.figshare.com/articles/journal_contribution/Phytochemical_composition_and_antitumor_activity_of_a_new_arctic_lichen_i_Anamylopsora_pakistanica_i_/26083613

For the first-time, chemical composition and in vitro antitumor activity was investigated of a newly described lichen Anamylopsora pakistanica Usman & Khalid from the second highest plateau of the world (Deosai Plains, Pakistan). HPLC–UV method was used for identification of secondary metabolites and the acetone extract had higher values of TPC (41.90 mg GA/g ) and TFC (75.37 mg RE/g) as compared to methanol extract. As chemical constituents 5,7-dihydroxy-6-methylphthalide, haematommic acid and alectorialic acid, were identified as major compounds. Atranol, alectorialin, gyrophoric acid and usnic acid were detected as minor substances. Acetone and methanol extracts induced a dose-dependent and time-dependent decrease in the viability of three types of tumour cells HeLa, HCT116 and MDA-MB-231. This lichen extract can induce S phase arrest in HeLa as compared to the untreated cells. Extract of this unique lichen, A. pakistanica, can be used safely as a significant source of biologically active compounds. ...