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Ommori R, Nakamura Y, Miyagawa F, Shobatake C, Ogawa K, Koyama F, Sho M, Ota I, Kitahara T, Hontsu S, Muro S, Asada H. Reduced induction of human β-defensins is involved in the pathological mechanism of cutaneous adverse effects caused by epidermal growth factor receptor monoclonal antibodies. Clin Exp Dermatol 2020; 45:1055-1058. [PMID: 32460367 DOI: 10.1111/ced.14311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2020] [Indexed: 11/28/2022]
Abstract
Epidermal growth factor receptor inhibitors (EGFRIs) frequently cause cutaneous adverse effects such as papulopustular eruptions. However, the mechanism of the reactions remains unclear. To assess the pathological mechanism of cutaneous adverse reactions caused by EGFRIs, we investigated whether EGFRIs have an influence on the innate immune response of the skin. Levels of human β-defensins (hBDs), which serve as the first line of defence against infection by pathogenic microorganisms, in the stratum corneum samples of patients treated with EGFR. monoclonal antibodies were measured before and after starting therapy. There were no obvious trends in hBD production in patients without eruptions, whereas a significant decrease in hBD1 and hBD3 production and a nonsignficant decrease in hBD2 production were observed in patients who developed papulopustular eruptions. Our results suggest that a reduction in hBD contributes to the increased incidence of papulopustular eruptions.
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Affiliation(s)
- R Ommori
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
| | - Y Nakamura
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
| | - F Miyagawa
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
| | - C Shobatake
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
| | - K Ogawa
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
| | - F Koyama
- Department of, Surgery, Nara Medical University, Nara, Japan
| | - M Sho
- Department of, Surgery, Nara Medical University, Nara, Japan
| | - I Ota
- Department of, Otolaryngology-Head and Neck Surgery, Nara Medical University, Nara, Japan
| | - T Kitahara
- Department of, Otolaryngology-Head and Neck Surgery, Nara Medical University, Nara, Japan
| | - S Hontsu
- Second Department of Internal Medicine (Department of Respiratory Medicine), Nara Medical University, Nara, Japan
| | - S Muro
- Second Department of Internal Medicine (Department of Respiratory Medicine), Nara Medical University, Nara, Japan
| | - H Asada
- Departments of, Department of, Dermatology, Nara Medical University, Nara, Japan
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Kunimasa K, Ito K, Yamanaka T, Fujimoto D, Mori M, Maeno K, Tomomatsu K, Tamura A, Tanaka H, Watanabe S, Teraoka S, Hataji O, Suzuki K, Hontsu S, Hara S, Bessho A, Kubo A, Okuno M, Nakagawa K, Yamamoto N. The safety assessment of crizotinib and alectinib from real-world data of 840 ALK-inhibitor naïve patients with NSCLC harboring ALK-rearrangement (WJOG9516L). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Inoue K, Asakawa I, Katayama E, Tamamoto T, Hontsu S, Tojo T, Hasegawa M. Feasibility and Efficacy of Salvage Radiation Therapy for Locoregional Recurrence of Elderly Non-small Cell Lung Cancer After Resection. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Okada H, Hontsu S, Asakawa I, Miura S, Tamamoto T, Katayama E, Inoue K, Iwasaki S, Kichikawa K, Hasegawa M. Changes Of Tumor Size And Tumor Contrast Enhancement During Radiotherapy For Non-small Cell Lung Cancer: Are These Changes Correlated With The Treatment Outcome? Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Okada H, Hontsu S, Asakawa I, Miura S, Tamamoto T, Katayama E, Iwasaki S, Kichikawa K, Hasegawa M. Assessment of Early Response during and after Radiotherapy for Non-small Cell Lung Cancer: Tumor Diameter and Contrast Enhancement. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hashimoto Y, Kawashima M, Hatanaka R, Kusunoki M, Nishikawa H, Hontsu S, Nakamura M. Cytocompatibility of calcium phosphate coatings deposited by an ArF pulsed laser. J Mater Sci Mater Med 2008; 19:327-33. [PMID: 17597377 DOI: 10.1007/s10856-006-0107-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2005] [Accepted: 01/17/2006] [Indexed: 05/16/2023]
Abstract
In the current studies, we deposited ultra-thin hydroxyapatite films on a pure titanium substrate by pulsed laser deposition, and we examined the effects of these surfaces on rat bone marrow (RBM) cells. This method allowed deposition of 500-, 2,000-, and 5,000-A-thick hydroxyapatite films. X-ray diffraction showed that the amorphous films recrystallized to a hydroxyapatite crystal structure after annealing. The proliferation of RBM cells was unaffected by the hydroxyapatite films, but osteocalsin and alkaline phosphatase mRNA and protein levels were elevated in cells grown on 2,000- and 5,000-A-thick films. These results indicate that ultra-thin hydroxyapatite films generated by pulsed laser deposition are better at promoting osteogenesis than pure titanium surfaces.
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Affiliation(s)
- Y Hashimoto
- Department of Biomaterials, Osaka Dental University, 8-1 Kuzuhahanazono-cho, Hirakata-shi, Osaka 5731121, Japan.
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Hashimoto Y, Kawashima M, Hatanaka R, Kusunoki M, Nishikawa H, Hontsu S, Nakamura M. Cytocompatibility of calcium phosphate coatings deposited by an ArF pulsed laser. J Mater Sci Mater Med 2007; 18:1457-64. [PMID: 17387597 DOI: 10.1007/s10856-006-0118-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In the current studies, we deposited ultra-thin hydroxyapatite films on a pure titanium substrate by pulsed laser deposition, and we examined the effects of these surfaces on rat bone marrow (RBM) cells. This method allowed deposition of 500-, 2000-, and 5000-Angstrom-thick hydroxyapatite films. X-ray diffraction showed that the amorphous films recrystallized to a hydroxyapatite crystal structure after annealing. The proliferation of RBM cells was unaffected by the hydroxyapatite films, but osteocalsin and alkaline phosphatase mRNA and protein levels were elevated in cells grown on 2000- and 5000-Angstrom-thick films. These results indicate that ultra-thin hydroxyapatite films generated by pulsed laser deposition are better at promoting osteogenesis than pure titanium surfaces.
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Affiliation(s)
- Y Hashimoto
- Department of Biomaterials, Osaka Dental University, 8-1 Kuzuhahanazono-cho Hirakata-shi, Osaka 5731121, Japan.
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