Abstract：
:Recent studies reported the involvement of JAK2/STAT3 pathway in various solid tumours including breast, ovarian, prostate and lung cancers. Clinical literature also reported the lowered burden in breast and ovarian cancers by targeting JAK2 pathway. In this study, a series of novel 2,4-disubstituted quinazolines (2a-2 j and 3a-3 j) were synthesized and were evaluated for their cytotoxicity against human breast cancer (MDA-MB-231) and ovarian cancer (SK-O-V3) cell lines using MTT assay. Moderate to good in vitro cytotoxic potentials of the newly synthesized molecules were reported against selected human cancer cell lines. Among the tested molecules, compound 3b has shown better cytotoxic activity against MD-MB-231 (10.1 ± 0.51 μM). in vitro JAK2 inhibition assay elucidated the mechanistic profile of the derivatives with moderate percentage of inhibition. Compounds 3b and 3d were reported with 35.4% and 34.2% inhibition of JAK2 protein. SAR studies suggest that the larger hydrophobic aromatic nucleus with hydrophilic linkage could probably increase the cytotoxic and JAK2 potentials and hydroxyl or nitro substitution could be more beneficial. Molecular dynamics simulation studies with JAK2-3b, and JAK2-3d complexes elucidated the conformational changes. With the reported bioactivities of these derivatives, further studies on the derivatization could elucidate the broader cytotoxic potentials.
journal_name
Comput Biol Chemjournal_title
Computational biology and chemistryauthors
Jyothi Buggana S,Paturi MC,Perka H,Gade DR,Vvs RPdoi
10.1016/j.compbiolchem.2019.01.008subject
Has Abstractpub_date
2019-04-01 00:00:00pages
110-118eissn
1476-9271issn
1476-928Xpii
S1476-9271(18)30720-5journal_volume
79pub_type
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