PMID- 37493814 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230729 IS - 2730-6011 (Electronic) IS - 2730-6011 (Linking) VI - 14 IP - 1 DP - 2023 Jul 26 TI - Antitumor activity of 5-fluorouracil polymeric nanogel synthesized by gamma radiation on a rat model of colon carcinoma: a proposed mechanism. PG - 138 LID - 10.1007/s12672-023-00733-z [doi] LID - 138 AB - The use of 5-fluorouracil (5-FU) is associated with multifaceted challenges and poor pharmacokinetics. Accordingly, our study was designed to prepare 5-FU nanogel as a new form of the colon cancer chemotherapeutic drug 5-FU using polyacrylic acid and gelatin hybrid nanogel as efficient drug carriers. Alongside the in vivo chemotherapeutic evaluation, the anti-proliferative and anti-apoptotic efficacy were carried out for 5-FU nanogel against 1,2-dimethylhydrazine (DMH, 20 mg/kg) and gamma-radiation (4 Gy)-prompted colon dysplasia in rats compared to 5-FU. The morphology and size of 5-FU nanogel were characterized by transmission electron microscopy (TEM) and dynamic light scattering (DLS) in addition to cytotoxicity assay. The expression of phosphoinositide-3-kinase (PI3K)/Akt, mammalian target of rapamycin (mTOR); Toll-like receptor2 (TLR2)/nuclear factor kappa B), adenosine monophosphate (AMP)-activated protein kinase (AMPK) and its downstream autophagy-related genes in addition to apoptotic markers were measured in colon tissues. Results: 5-FU nanogel reduced the levels of the TLR2/ NF-kappabeta as well as the expression of PI3K/AKT/mTOR. Moreover, it promoted autophagy through the activation of the AMPK and its downstream targets which consequently augmented the intrinsic and extrinsic apoptotic pathways. Conclusion: Collectively, these data might strengthen the therapeutic potential of 5-FU nanogel which can be used as an antitumor product for colon cancer. CI - (c) 2023. The Author(s). FAU - Abo-Zaid, Omayma A R AU - Abo-Zaid OAR AUID- ORCID: 0000-0002-1752-6709 AD - Biochemistry and Molecular Biology Department, Faculty of Vet. Med, Benha University, Benha, Egypt. FAU - Moawed, Fatma S M AU - Moawed FSM AUID- ORCID: 0000-0002-5792-0815 AD - Health Radiation Research, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Nasr City, Cairo, 11787, Egypt. fatmasearch5@yahoo.com. FAU - Barakat, Wael E M AU - Barakat WEM AD - Biochemistry and Molecular Biology Department, Faculty of Vet. Med, Benha University, Benha, Egypt. FAU - Ghobashy, Mohamed Mohamady AU - Ghobashy MM AUID- ORCID: 0000-0003-0968-1423 AD - Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt. FAU - Ahmed, Esraa S A AU - Ahmed ESA AUID- ORCID: 0000-0001-5358-4394 AD - Radiation Biology Research, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt. LA - eng PT - Journal Article DEP - 20230726 PL - United States TA - Discov Oncol JT - Discover oncology JID - 101775142 PMC - PMC10371941 OTO - NOTNLM OT - 5-fluorouracil nanogel OT - AKT OT - Autophagy OT - Colon cancer OT - NF-kappabeta OT - PI3K OT - TLR2 OT - mTOR COIS- The authors declare no competing interests. EDAT- 2023/07/26 13:07 MHDA- 2023/07/26 13:08 PMCR- 2023/07/26 CRDT- 2023/07/26 11:13 PHST- 2023/03/06 00:00 [received] PHST- 2023/06/21 00:00 [accepted] PHST- 2023/07/26 13:08 [medline] PHST- 2023/07/26 13:07 [pubmed] PHST- 2023/07/26 11:13 [entrez] PHST- 2023/07/26 00:00 [pmc-release] AID - 10.1007/s12672-023-00733-z [pii] AID - 733 [pii] AID - 10.1007/s12672-023-00733-z [doi] PST - epublish SO - Discov Oncol. 2023 Jul 26;14(1):138. doi: 10.1007/s12672-023-00733-z.