| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
WHO classification set up new entities of endocervical adenocarcinoma (ECA), namely the 'usual type' and 'gastric type.' Usual-type ECAs (U-ECAs) are virtually always associated with high-risk human papillomavirus (HR-HPV) infection. Gastric-type ECAs (G-ECAs) are believed not to be associated with HR-HPV infection. We noticed that some ECAs contain morphologically usual type-like and gastric type-like components in a single tumor; we have named these "G+U" ECAs. We analyzed 70 cases of endocervical adenocarcinoma. We identified 48 pure U-ECAs, nine pure G-ECAs and 13 G+U ECAs. Most G+U ECAs showed no HR-HPV infection and showed frequent HIK1083 expression and aberrant p53 expression. The other G+U ECAs showed HR-HPV infection and frequent p16+/p53-/HIK1083-; immunophenotype. Most of the G+U ECAs we examined were genuine HPV-unrelated G-ECAs with usual type-like components. A small population of G+U ECAs was genuine HPV-related U-ECAs with gastric type-like components.
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