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2017 ; 32
(1
): 986-991
Nephropedia Template TP
gab.com Text
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English Wikipedia
Cancer stem cells CD133 inhibition and cytotoxicity of certain
3-phenylthiazolo 3,2-a benzimidazoles: design, direct synthesis, crystal study
and in vitro biological evaluation
#MMPMID28726519
Al-Ansary GH
; Eldehna WM
; Ghabbour HA
; Al-Rashood STA
; Al-Rashood KA
; Eladwy RA
; Al-Dhfyan A
; Kabil MM
; Abdel-Aziz HA
J Enzyme Inhib Med Chem
2017[Dec]; 32
(1
): 986-991
PMID28726519
show ga
Cancer stem cells (CSCs) have been objects of intensive study since their
identification in 1994. Adopting a structural rigidification approach, a novel
series of 3-phenylthiazolo[3,2-a]benzimidazoles 4a-d was designed and
synthesised, in an attempt to develop potent anticancer agent that can target the
bulk of tumour cells and CSCs. The anti-proliferative activity of the synthesised
compounds was evaluated against two cell lines, namely; colon cancer HT-29 and
triple negative breast cancer MDA-MB-468 cell lines. Also, their inhibitory
activity against the cell surface expression of CD133 was examined. In
particular, compound 4b emerged as a promising hit molecule as it manifested good
antineoplastic potency against both tested cell lines (IC(50)?=?9 and 12??M,
respectively), beside its ability to inhibit the cell surface expression of CD133
by 50% suggesting a promising potential of effectively controlling the tumour by
eradicating the tumour bulk and inhibiting the proliferation of the CSCs.
Moreover, compounds 4a and 4c showed moderate activity against HT-29 (IC(50)?=?21
and 29??M, respectively) and MDA-MB-468 (IC(50)?=?23 and 24??M, respectively)
cell lines, while they inhibited the CD133 expression by 14% and 48%,
respectively. Finally, a single crystal X-ray diffraction was recorded for
compound 4d.