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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cell+Physiol
2015 ; 230
(10
): 2552-78
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
GRP78/Dna K Is a Target for Nexavar/Stivarga/Votrient in the Treatment of Human
Malignancies, Viral Infections and Bacterial Diseases
#MMPMID25858032
Roberts JL
; Tavallai M
; Nourbakhsh A
; Fidanza A
; Cruz-Luna T
; Smith E
; Siembida P
; Plamondon P
; Cycon KA
; Doern CD
; Booth L
; Dent P
J Cell Physiol
2015[Oct]; 230
(10
): 2552-78
PMID25858032
show ga
Prior tumor cell studies have shown that the drugs sorafenib (Nexavar) and
regorafenib (Stivarga) reduce expression of the chaperone GRP78.
Sorafenib/regorafenib and the multi-kinase inhibitor pazopanib (Votrient)
interacted with sildenafil (Viagra) to further rapidly reduce GRP78 levels in
eukaryotes and as single agents to reduce Dna K levels in prokaryotes. Similar
data were obtained in tumor cells in vitro and in drug-treated mice for: HSP70,
mitochondrial HSP70, HSP60, HSP56, HSP40, HSP10, and cyclophilin A. Prolonged
'rafenib/sildenafil treatment killed tumor cells and also rapidly decreased the
expression of: the drug efflux pumps ABCB1 and ABCG2; and NPC1 and NTCP,
receptors for Ebola/Hepatitis A and B viruses, respectively. Pre-treatment with
the 'Rafenib/sildenafil combination reduced expression of the Coxsackie and
Adenovirus receptor in parallel with it also reducing the ability of a serotype 5
Adenovirus or Coxsackie virus B4 to infect and to reproduce. Sorafenib/pazopanib
and sildenafil was much more potent than sorafenib/pazopanib as single agents at
preventing Adenovirus, Mumps, Chikungunya, Dengue, Rabies, West Nile, Yellow
Fever, and Enterovirus 71 infection and reproduction. 'Rafenib drugs/pazopanib as
single agents killed laboratory generated antibiotic resistant E. coli which was
associated with reduced Dna K and Rec A expression. Marginally toxic doses of
'Rafenib drugs/pazopanib restored antibiotic sensitivity in pan-antibiotic
resistant bacteria including multiple strains of blakpc Klebsiella pneumoniae.
Thus, Dna K is an antibiotic target for sorafenib, and inhibition of GRP78/Dna K
has therapeutic utility for cancer and for bacterial and viral infections.