Research Project
Grant-in-Aid for Early-Career Scientists
私たちは、フラボノイドの一種であるLuteolinが膵癌化学予防物質として有効であることを証明し、そのメカニズムとしてDPDという膵癌の標準治療で用いられる5-FUの代謝分解酵素の発現抑制が重要であることを解明しました。この事から、『5-FUとLuteolinの併用療法は、Luteolin単独投与による膵癌増殖抑制効果に加え、膵癌腫瘍内のDPD発現抑制による5-FUの治療増強効果が期待できる』と考え、膵癌動物モデルや培養細胞を用いて新規膵癌治療補助療法へ直結する研究を行います。
It was found that Luteolin, a type of flavonoid, has a suppressive effect on pancreatic cancer development and inhibits the expression of DPYD, a 5-FU degradation enzyme. Therefore, this study examined the pancreatic cancer suppression effect of combined administration of Luteolin and 5-FU. Using KPPC mice models and xenograft models of human pancreatic cancer cell lines with DPYD overexpressed, it was revealed that combined administration showed a significant tumor suppression effect. Additionally, it was found that DPYD contributes to proliferation, invasion, and angiogenesis, and that metallopeptidase activity including MMP9 and MEP1A contributes to invasion. Results of examining substances with flavonoids other than Luteolin or with modified side chains showed that Luteolin has the highest inhibitory effect on DPYD. This study suggests the potential for pancreatic cancer suppression through combined administration of Luteolin and 5-FU.
ルテオリンはサプリメントとしても販売されている安全性の高い物質である。現在までにフラボノイドなどの生理活性物質は単独での薬効はそれほど高くないため、化学予防物質などでの研究がなされてきた。本研究は5-FUという膵癌の標準治療と組み合わせることによって、5-FUの治療特異的に治療効果を上昇する事が期待でき、予後の悪い膵癌への治療応用性が期待できる有用な物質である可能性がある。安全性も担保された臨床応用可能な物質であり、その社会的意義や還元性は高いと考えられる。
All 2023 2022 2021 2020
All Journal Article (31 results) (of which Int'l Joint Research: 6 results, Peer Reviewed: 31 results, Open Access: 24 results) Presentation (11 results) (of which Int'l Joint Research: 1 results)
Internal Medicine
Volume: 62 Issue: 4 Pages: 545-551
10.2169/internalmedicine.0075-22
Journal of Cancer Research and Clinical Oncology
Volume: epub Issue: 8 Pages: 4771-4782
10.1007/s00432-022-04394-3
Scientific Reports
Volume: 12 Issue: 1 Pages: 16515-16515
10.1038/s41598-022-20225-4
Cancers
Volume: 14 Issue: 17 Pages: 4147-4147
10.3390/cancers14174147
Modern Pathology
Volume: 35 Issue: 11 Pages: 1609-1617
10.1038/s41379-022-01122-7
Pancreas
Volume: 51 Issue: 4 Pages: 372-379
10.1097/mpa.0000000000002032
American Journal of Cancer Research
Volume: 12 Pages: 1593-1605
Oncology letters
Volume: 23 Issue: 2 Pages: 60-60
10.3892/ol.2021.13178
Volume: 14 Issue: 3 Pages: 822-822
10.3390/cancers14030822
Volume: 12 Issue: 1 Pages: 419-419
10.1038/s41598-021-04335-z
Nutrients
Volume: 14 Issue: 1 Pages: 42-42
10.3390/nu14010042
International Journal of Molecular Sciences
Volume: 22 Issue: 14 Pages: 7444-7444
10.3390/ijms22147444
IJU Case Reports
Volume: 4 Issue: 3 Pages: 188-191
10.1002/iju5.12279
Japanese Journal of Clinical Oncology
Volume: 51 Issue: 3 Pages: 434-443
10.1093/jjco/hyaa235
Toxicology Letters
Volume: 336 Pages: 32-38
10.1016/j.toxlet.2020.11.005
120007181781
Breast Cancer Research and Treatment
Volume: 187 Issue: 1 Pages: 81-93
10.1007/s10549-021-06176-w
Virchows Archiv
Volume: - Issue: 2 Pages: 277-284
10.1007/s00428-021-03062-0
Carcinogenesis
Volume: - Issue: 7 Pages: 940-950
10.1093/carcin/bgab017
Volume: 4 Issue: 1 Pages: 59-63
10.1002/iju5.12241
Volume: 12 Issue: 2 Pages: 558-558
10.3390/nu12020558
Volume: 50 Issue: 12 Pages: 1364-1369
10.1093/jjco/hyaa151
Journal of Toxicologic Pathology
Volume: 33 Issue: 4 Pages: 279-285
10.1293/tox.2020-0038
130007931389
Toxicology
Volume: 429 Pages: 152325-152325
10.1016/j.tox.2019.152325
Andrology
Volume: 8 Issue: 6 Pages: 1895-1906
10.1111/andr.12846
Volume: 3 Issue: 4 Pages: 128-131
10.1002/iju5.12163
PLoS One
Volume: 15 Issue: 2 Pages: e0229262-e0229262
10.1371/journal.pone.0229262
Archives of Toxicology
Volume: 94 Issue: 12 Pages: 4085-4097
10.1007/s00204-020-02873-5
Molecules
Volume: 25 Issue: 12 Pages: 2737-2737
10.3390/molecules25122737
BMC Surgery
Volume: 20 Issue: 1 Pages: 263-263
10.1186/s12893-020-00927-0
Pathology International
Volume: 70 Issue: 11 Pages: 835-843
10.1111/pin.13001
Cancer Science
Volume: 111 Issue: 4 Pages: 1165-1179
10.1111/cas.14334