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Nakamura H, Matsuzaki T, Ito KR, Nakagawa R, Asano LM, Nishikido H, Haga H, Kataoka TR. Possible roles of human mast cells in the formation of xanthelasma palpebrarum. Pathol Int 2023; 73:406-412. [PMID: 37341622 DOI: 10.1111/pin.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/15/2023] [Accepted: 06/01/2023] [Indexed: 06/22/2023]
Abstract
Cutaneous xanthoma consist of foam cells that originate from monocytes or macrophages and accumulate in perivascular areas of the skin. The main component of these cells is oxidized low-density lipoprotein (oxLDL). In this study, we show that mast cells surround the accumulated foam cells, suggesting their involvement in xanthoma formation. Coculture of THP-1 or U937 monocytes with the human mast cell line LUVA upregulated their uptake of oxLDL. Positive staining for intracellular cell adhesion molecule-1 (ICAM-1) at the borders between mast cells and foam cells was seen in pathological specimens of the most common cutaneous xanthoma, xanthelasma palpebrarum, and in cocultures. In the latter, ICAM1 messenger RNA levels were upregulated. The administration of anti-ICAM-1 blocking antibody inhibited the increase in oxLDL uptake by THP-1 or U937 monocytes cocultured with LUVA. Taken together, these results suggest a role for mast cells in the formation of xanthelasma palpebrarum and the involvement of ICAM-1 in this process.
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Affiliation(s)
- Hiroya Nakamura
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Takashi Matsuzaki
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Ken R Ito
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Ryota Nakagawa
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Lurica M Asano
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Hinako Nishikido
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Hironori Haga
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Tatsuki R Kataoka
- Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
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Kallionpää RA, Ahramo K, Martikkala E, Fazeli E, Haapaniemi P, Rokka A, Leivo I, Harvima IT, Peltonen J, Peltonen S. Mast Cells in Human Cutaneous Neurofibromas: Density, Subtypes, and Association with Clinical Features in Neurofibromatosis 1. Dermatology 2021; 238:329-339. [PMID: 34237737 DOI: 10.1159/000517011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/24/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cutaneous neurofibromas (cNFs) are hallmarks of neurofibromatosis 1 (NF1) and cause the main disease burden in adults with NF1. Mast cells are a known component of cNFs. However, no comprehensive characterization of mast cells in cNFs is available, and their contributions to cNF growth and symptoms such as itch are not known. METHODS We collected 60 cNFs from ten individuals with NF1, studied their mast cell proteinase content, and compared the mast cell numbers to selected clinical features of the tumors and patients. The tumors were immunolabeled for the mast cell markers CD117, tryptase, and chymase, and the percentage of immunopositive cells was determined using computer-assisted methods. RESULTS The median proportions of positive cells were 5.5% (range 0.1-14.4) for CD117, 4.0% (1.2-7.0) for tryptase, and 5.0% (1.1-15.9) for chymase. The median densities of cells immunopositive for CD117, tryptase, and chymase were 280, 243, and 250 cells/mm2, respectively. Small tumors, growing tumors, and tumors from patients below the median age of 33 years displayed a high proportion of mast cells. Cells expressing both tryptase and chymase were the predominant mast cell type in cNFs, followed by cells expressing chymase only. CONCLUSION The results highlight the abundance of mast cells in cNFs and that their number and subtypes clearly differ from those previously reported in unaffected skin.
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Affiliation(s)
| | - Kaisa Ahramo
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Eija Martikkala
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Elnaz Fazeli
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Pekka Haapaniemi
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Anne Rokka
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Ilmo Leivo
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
| | - Ilkka T Harvima
- Department of Dermatology, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland
| | - Juha Peltonen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sirkku Peltonen
- Department of Dermatology and Venereology, University of Turku, Turku, Finland.,Department of Dermatology, Turku University Hospital, Turku, Finland.,Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
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Khode S, Tan SHT, Tan EPA, Uppal S. Xanthelasma Palpebrarum: More than Meets the Eye. Indian J Otolaryngol Head Neck Surg 2019; 71:439-446. [PMID: 31742000 DOI: 10.1007/s12070-018-1345-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 04/05/2018] [Indexed: 10/17/2022] Open
Abstract
Xanthelasma palpebrarum (XP) is the most common form of cutaneous xanthomata, and is important aesthetically, because of its close relation to the eyes, as well as medically for its association with cardiovascular disease (CVD). To provide avant-garde review discussing the various aspects of XP, including its aetio-pathogenesis and various treatment modalities. A structured Pubmed and Medline were searched for relevant articles. The finding of recent research has strongly espoused the link between XP and CVD, and mechanisms have been suggested for its formation. The new technologies have led to a multitude of treatment options for XP. XP is a multi-faceted entity; other than simple treatment of the cosmetic aspect of the disease, one must be cognizant of its cardiovascular implications.
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Affiliation(s)
- Shailesh Khode
- Department of Otolaryngology - Head and Neck Surgery, Khoo Teck Puat Hospital, 90 Yishun Central, Yishun, 768828 Singapore
| | - Soon Heng Terry Tan
- Department of Otolaryngology - Head and Neck Surgery, Khoo Teck Puat Hospital, 90 Yishun Central, Yishun, 768828 Singapore
| | - En-Pei Amanda Tan
- Department of Otolaryngology - Head and Neck Surgery, Khoo Teck Puat Hospital, 90 Yishun Central, Yishun, 768828 Singapore
| | - Sandeep Uppal
- Department of Otolaryngology - Head and Neck Surgery, Khoo Teck Puat Hospital, 90 Yishun Central, Yishun, 768828 Singapore
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