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- W4387326095 abstract "Clinical treatment with the antineoplastic drug irinotecan (IRI) is often hindered by side effects that significantly reduce the quality of life of treated patients. Due to the growing public support for products with Δ9-tetrahydrocannabinol (THC), even though relevant scientific literature does not provide clear evidence of their high antitumour potential, some cancer patients take unregistered preparations containing up to 80 % THC. This study was conducted on a syngeneic colorectal cancer mouse model to test the efficiency and safety of concomitant treatment with IRI and THC. Male BALB/c mice subcutaneously injected with CT26 cells were receiving 60 mg/kg of IRI intraperitoneally on day 1 and 5 of treatment and/or 7 mg/kg of THC by gavage a day for 7 days. Treatment responses were evaluated based on changes in body, brain, and liver weight, tumour growth, blood cholinesterase activity, and oxidative stress parameters. Irinotecan's systemic toxicity was evidenced by weight loss and high oxidative stress. The important finding of this study is that combining THC with IRI diminishes IRI efficiency in inhibiting tumour growth. However, further studies, focused on more subtle molecular methods in tumour tissue and analytical analysis of IRI and THC distribution in tumour-bearing mice, are needed to prove our observations.Kliničko liječenje antineoplastičnim lijekom irinotekanom (IRI) često je otežano nuspojavama koje značajno smanjuju kvalitetu života liječenih bolesnika. Zbog sve veće javne potpore proizvodima s Δ9-tetrahidrokanabinolom (THC), iako relevantna znanstvena literatura ne daje jasne dokaze o njihovu visokom antitumorskom potencijalu, oboljeli od raka uzimaju neregistrirane pripravke koji sadržavaju i do 80 % THC-a. Ova studija provedena je na modelu singeničnoga tumora debelog crijeva u miševa kako bi se testirala učinkovitost i sigurnost istodobnog tretmana irinotekanom i THC-om. Mužjaci BALB/c miševa kojima su supkutano injicirane CT26 stanice primili su 60 mg/kg IRI-ja intraperitonealno prvi i peti dan i/ili 7 mg/kg THC-a oralno svaki dan tijekom sedam dana. Učinkovitost tretmana procijenjena je na temelju promjena u težini tijela, mozga i jetre, rasta tumora, aktivnosti kolinesteraza u krvi i parametara oksidacijskoga stresa. Sistemska toksičnost irinotekana potvrđena je smanjenjem težine miševa i povećanjem parametara oksidacijskoga stresa. Značaj je rezultata ove studije u smanjenoj učinkovitosti IRI-ja u inhibiciji rasta tumora tijekom istodobnog uzimanja s THC-om. Međutim, potrebna su daljnja istraživanja usmjerena na suptilnije molekularne metode u tumorskom tkivu i analitička analiza distribucije IRI-ja i THC-a u miševa s tumorom kako bi se dokazala naša opažanja." @default.
- W4387326095 created "2023-10-05" @default.
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- W4387326095 date "2023-09-01" @default.
- W4387326095 modified "2023-10-17" @default.
- W4387326095 title "Effects of concomitant use of THC and irinotecan on tumour growth and biochemical markers in a syngeneic mouse model of colon cancer" @default.
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- W4387326095 doi "https://doi.org/10.2478/aiht-2023-74-3765" @default.
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