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2014 ; 53
(41
): 10945-8
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Cell-mediated assembly of phototherapeutics
#MMPMID25154925
Smith WJ
; Oien NP
; Hughes RM
; Marvin CM
; Rodgers ZL
; Lee J
; Lawrence DS
Angew Chem Int Ed Engl
2014[Oct]; 53
(41
): 10945-8
PMID25154925
show ga
Light-activatable drugs offer the promise of controlled release with exquisite
temporal and spatial resolution. However, light-sensitive prodrugs are typically
converted to their active forms using short-wavelength irradiation, which
displays poor tissue penetrance. We report herein erythrocyte-mediated assembly
of long-wavelength-sensitive phototherapeutics. The activating wavelength of the
constructs is readily preassigned by using fluorophores with the desired
excitation wavelength ?(ex). Drug release from the erythrocyte carrier was
confirmed by standard analytical tools and by the expected biological
consequences of the liberated drugs in cell culture: methotrexate, binding to
intracellular dihydrofolate reductase; colchicine, inhibition of microtubule
polymerization; dexamethasone, induced nuclear migration of the glucocorticoid
receptor.