PMID- 34500742 OWN - NLM STAT- MEDLINE DCOM- 20211109 LR - 20211109 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 26 IP - 17 DP - 2021 Sep 1 TI - Anticancer Effects of Ursi Fel Extract and Its Active Compound, Ursodeoxycholic Acid, in FRO Anaplastic Thyroid Cancer Cells. LID - 10.3390/molecules26175309 [doi] LID - 5309 AB - Anaplastic thyroid cancer (ATC) is one of the most fatal human malignancies. Ursi Fel (UF) is the bile of a brown bear that has been traditionally used for heat clearance and toxin relief in Korean and Chinese medicines. In this study, we determined the anticancer effects of a UF extract and its active compound, ursodeoxycholic acid (UDCA), in FRO human ATC cells. FRO cells were treated with UF extract and UDCA at different concentrations for various durations. Cell viability was measured using an MTT assay. Cell apoptosis was investigated by flow cytometric analysis following Annexin V and propidium iodide (PI) staining, and Hoechst staining was used to observe nuclear fragmentation. The expression of pro-apoptotic (Bax, caspase-3, cytochrome c, and PARP), anti-apoptotic (Bcl-2), and angiogenetic (TGF-beta, VEGF, N-cadherin, and sirtuin-1) proteins and the phosphorylation of Akt and mechanistic target of rapamycin (mTOR) were determined by western blot analysis. Treatment with UF extract at 10, 25, and 50 mug/mL and UDCA at 25, 50, and 100 muM/mL significantly inhibited the growth of FRO cells in a dose-dependent manner. Flow cytometry and Hoechst staining revealed an increase in the apoptosis of FRO cells mediated by UF extract and UDCA in a dose-dependent manner. UF extract (25 and 50 mug) and UDCA (50 and 100 muM) significantly increased the expression of Bax, caspase-3, cytochrome c, and PARP and inhibited the expression of Bcl-2, TGF-beta, VEGF, N-cadherin, and sirtuin-1 in FRO cells. Furthermore, UF extract and UDCA treatment stimulated Akt phosphorylation and inhibited mTOR phosphorylation in these cells. These results indicate that UF extract and UDCA exert anticancer properties in FRO cells by inducing apoptosis and inhibiting angiogenesis via regulating the Akt/mTOR signaling pathway. FAU - Jung, Hyo Won AU - Jung HW AD - Department of Herbology, College of Korean Medicine, Dongguk University, Dongdae-ro 123, Gyeongju 38066, Korea. FAU - Hwang, Ji Hye AU - Hwang JH AUID- ORCID: 0000-0002-6304-1972 AD - Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Gachon University, Seongnam 13120, Korea. LA - eng PT - Journal Article DEP - 20210901 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Plant Extracts) RN - 724L30Y2QR (Ursodeoxycholic Acid) SB - IM MH - Animals MH - Antineoplastic Agents, Phytogenic/chemistry/isolation & purification/*pharmacology MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Dose-Response Relationship, Drug MH - Drug Screening Assays, Antitumor MH - Humans MH - Molecular Structure MH - Plant Extracts/chemistry/isolation & purification/*pharmacology MH - Structure-Activity Relationship MH - Thyroid Carcinoma, Anaplastic/*drug therapy/pathology MH - Tumor Cells, Cultured MH - Ursidae MH - Ursodeoxycholic Acid/chemistry/isolation & purification/*pharmacology PMC - PMC8434085 OTO - NOTNLM OT - Ursi Fel OT - angiogenesis OT - anticancer effect OT - apoptosis OT - thyroid cancer OT - ursodeoxycholic acid COIS- The authors declare no conflict of interest regarding the publication of this article. EDAT- 2021/09/11 06:00 MHDA- 2021/11/10 06:00 PMCR- 2021/09/01 CRDT- 2021/09/10 01:01 PHST- 2021/04/24 00:00 [received] PHST- 2021/08/01 00:00 [revised] PHST- 2021/08/04 00:00 [accepted] PHST- 2021/09/10 01:01 [entrez] PHST- 2021/09/11 06:00 [pubmed] PHST- 2021/11/10 06:00 [medline] PHST- 2021/09/01 00:00 [pmc-release] AID - molecules26175309 [pii] AID - molecules-26-05309 [pii] AID - 10.3390/molecules26175309 [doi] PST - epublish SO - Molecules. 2021 Sep 1;26(17):5309. doi: 10.3390/molecules26175309.