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Kikuyama F, Suzuki S, Jibiki A, Yokoyama Y, Kawazoe H, Kitanaka S, Nakamura T. Ingenol mebutate inhibits the growth of pancreatic cancer cells in vitro via STING with an efficacy comparable to that of clinically used anticancer agents. J Nat Med 2023; 77:343-351. [PMID: 36694038 DOI: 10.1007/s11418-023-01682-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/10/2023] [Indexed: 01/25/2023]
Abstract
Pancreatic cancer is associated with a poor prognosis; thus, there is an urgent need to develop new and effective treatments. Ingenol mebutate (IM), which is isolated from the latex of Euphorbia peplus, was recently shown to be effective against pancreatic cancer cell lines; however, its mechanism of action has not been fully elucidated. In this study, we focused on the less drug-sensitive pancreatic cancer cell line Panc-1 and compared IM to commercially available anticancer drugs using cell survival assays. In addition, we aimed to identify novel biomolecules that may be involved in the mechanism of action of IM using RNA sequencing, western blotting, and inhibition assays. The IC50 values after 72 h of exposure to IM and SN-38, drugs to which the Panc-1 cells are most sensitive among the tested anticancer agents, were 43.1 ± 16.8 nM and 165 ± 37 nM, respectively. IM showed a cytostatic effect equal to or greater than that of the clinically used pancreatic cancer therapeutic drugs. RNA sequencing and protein expression analysis revealed that expression of stimulator of interferon genes (STING) increased at low IM concentration, whereas cell viability decreased. Co-exposure of IM and STING inhibitor, H-151, to Panc-1 or MIA PaCa-2 cell lines canceled the growth-inhibitory effects of IM alone. In conclusion, IM may have an efficacy comparable to that of existing pancreatic cancer therapeutic agents on the less drug-sensitive Panc-1 cell line and the immune-related molecule STING plays a role in the mechanism of action of IM.
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Affiliation(s)
- Fumihiro Kikuyama
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Sayo Suzuki
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan.
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan.
| | - Aya Jibiki
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Yuta Yokoyama
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Hitoshi Kawazoe
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Susumu Kitanaka
- Dios Medical Science Institute, 4-3-21 Mimomi, Narashino, Chiba, 275-0002, Japan
| | - Tomonori Nakamura
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
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Kikuyama F, Suzuki S, Jibiki A, Yokoyama Y, Kawazoe H, Nakamura T. [Pharmacy Students' Self-efficacy for Pharmaceutical Expertise Affects Successful Experiences as Enactive Attainments in Pharmacy Practice Experience in Japan]. YAKUGAKU ZASSHI 2020; 140:799-808. [PMID: 32475930 DOI: 10.1248/yakushi.19-00252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Pharmacy practice experience (PPE) is essential in the six-year course of pharmaceutical education in Japan. We previously found that PPE reinforced students' self-efficacy for curriculums (SECs), leading robust acquisition and reconstruction of pharmaceutical expertise. In this study, we aimed to clarify whether students' SECs affect successful experiences as enactive attainments in PPE. We distributed survey questionnaires to the fifth-year students in Keio University in 2016-2017 before and after PPE. The students made a self-assessment of their psychological state "expect to do well" on a seven-point Likert scale for each curriculum (C1 to C18), and their successful experiences were also collected from free description type questionnaire. We could follow up 139 students. The SEC scores increased from pre-PPE to post I (p<0.001) and II terms (p<0.01). The increase in SEC scores during PPE was associated with the rate of students' successful experiences in the first-term PPE (p=0.04). The path analysis revealed the following as significant predictive factors of SECs for successful experiences: basic sciences (C1, C2, C3, C4, C5, and C6) with stand-ardizing coefficient 0.35, health and environmental sciences (C11 and C12) with 0.39, and pharmaceutical sciences (C7, C8, C9, C10, C13, and C14) with -0.51. Students in the first-term PPE tended to experience successful performance in medical professions by using their pharmaceutical expertise that they had learned. In this study, for the first time, we demonstrated that Japanese students' SECs for pharmaceutical expertise affected successful experiences, leading better outcomes of PPE.
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Affiliation(s)
- Fumihiro Kikuyama
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
| | - Sayo Suzuki
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
| | - Aya Jibiki
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
| | - Yuta Yokoyama
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
| | - Hitoshi Kawazoe
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
| | - Tomonori Nakamura
- Division of Pharmaceutical Care Sciences, Keio University Graduate School of Pharmaceutical Sciences
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Kikuyama F, Suzuki S, Nakamura T. [Educational Effect of Practical Training on Students' Robust Acquisition and Reconstruction of Expertise on Pharmaceutical Sciences They Had Learned before Practical Training]. YAKUGAKU ZASSHI 2020; 139:1201-1209. [PMID: 31474636 DOI: 10.1248/yakushi.19-00018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Long-term practical training in the 6-year course of pharmaceutical education is a program for students after acquiring basic knowledge on pharmaceutical sciences and preclinical training. However, it remains unproved whether practical training affects students' robust acquisition and reconstruction of pharmaceutical expertise which they had learned before starting practical training. To address this issue, we administered survey questionnaires to 5th-year students (n=149) of Keio University in 2016 both before and after practical training. From the viewpoint of self-efficacy, psychological approach was applied to evaluate respondents' psychological state "to do well" on a 7-point Likert scale (1=disagree, 4=neither, 7=agree) for specific subjects C1-C18 (18 core units of pharmaceutical expertise in the current Model Core Curriculum for Pharmaceutical Education), mainly including basic pharmaceutical sciences, public health, clinical pharmacology and pharmacotherapy. C1-C18 total score values, which reflect the strength of certainty to acquire expertise, were significantly higher after the first term of practical training compared to before training, regardless of the pharmacy and the hospital (p<0.001), but not after the second term. Specific factors associated with increased score values for "to do well" were not extracted from other questionnaire answers concerning students' mentors or their self-learning during practical training. These results demonstrated that practical training at least partly reinforced students' feeling of "to do well", contributing to their robust acquisition and reconstruction of pharmaceutical expertise. Giving students recognition individually of their learning process themselves encourages more effective practical training toward their development of resources as a pharmacist.
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Affiliation(s)
- Fumihiro Kikuyama
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University
| | - Sayo Suzuki
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University
| | - Tomonori Nakamura
- Center for Social Pharmacy and Pharmaceutical Care Sciences Division of Pharmaceutical Care Sciences, Keio University
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