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041 _afre
042 _adc
100 1 0 _aSakamoto, Ryoko
_eauthor
700 1 0 _a Kajihara, Ikko
_eauthor
700 1 0 _a Mijiddorj, Tselmeg
_eauthor
700 1 0 _a Otsuka-Maeda, Saki
_eauthor
700 1 0 _a Sawamura, Soichiro
_eauthor
700 1 0 _a Nishimura, Yuki
_eauthor
700 1 0 _a Kanemaru, Hisashi
_eauthor
700 1 0 _a Kanazawa-Yamada, Saori
_eauthor
700 1 0 _a Nakamura, Kayo
_eauthor
700 1 0 _a Honda, Noritoshi
_eauthor
700 1 0 _a Makino, Katsunari
_eauthor
700 1 0 _a Aoi, Jun
_eauthor
700 1 0 _a Igata, Toshikatsu
_eauthor
700 1 0 _a Makino, Takamitsu
_eauthor
700 1 0 _a Masuguchi, Shinichi
_eauthor
700 1 0 _a Fukushima, Satoshi
_eauthor
700 1 0 _a Morinaga, Jun
_eauthor
700 1 0 _a Komohara, Yoshihiro
_eauthor
700 1 0 _a Ihn, Hironobu
_eauthor
245 0 0 _aExistence of Staphylococcus aureus correlates with the progression of extramammary Paget's disease: potential involvement of interleukin-17 and M2-like macrophage polarization
260 _c2021.
500 _a45
520 _aBackground: The microbiome plays an important role in the tumour microenvironment (TME). Objectives: In this study, we investigated the clinical significance of the microbiota in extramammary Paget's disease (EMPD). Materials & Methods: Patients with EMPD, treated between March 2007 and September 2019 at Kumamoto University Hospital, were investigated retrospectively. Inclusion criteria included: histological diagnosis of EMPD, inspection of the bacterial culture of the cancer lesion using swab sampling, and availability of sufficient tissue in paraffin blocks for immunohistochemistry. For the latter, primary antibodies against IL-17, CD163 and ionized calcium-binding adapter molecule 1 (Iba1) were used. Results: Bacterial cultures of the cancer lesion revealed that Staphylococcus aureus (S. aureus) was highly prevalent in EMPD patients, with dermal invasion or lymph node metastasis, compared to patients without these findings. Furthermore, the number of IL-17-positive cells and CD163-positive M2-like macrophages (pro-tumour macrophages) were increased in EMPD tissues with S. aureus. Moreover, the number of IL-17-producing cells in EMPD tissues positively correlated with the accumulation of CD163-positive M2-like macrophages. In addition, the percentage of CD163-positive cells within Iba-1-positive macrophages (total macrophages) was also significantly elevated in EMPD tissues with S. aureus. Conclusion: Based on these findings, S. aureus may exacerbate the pathological condition of EMPD via the accumulation of IL-17 and M2-like macrophages.
690 _astaphylococcus aureus
690 _atumour microenvironment
690 _atumour-associated macrophage
690 _ainterleukin-17
786 0 _nEuropean Journal of Dermatology | 31 | 1 | 2021-01-01 | p. 48-54 | 1167-1122
856 4 1 _uhttps://shs.cairn.info/revue-european-journal-of-dermatology-2021-1-page-48?lang=en&redirect-ssocas=7080
999 _c603193
_d603193