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Parekh AR, Shah HA. "Degeneration" in Dermatopathology. Indian J Dermatol Venereol Leprol 2023; 89:916-922. [PMID: 37317736 DOI: 10.25259/ijdvl_114_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/29/2023] [Indexed: 06/16/2023]
Affiliation(s)
- Abhishek R Parekh
- Department of Dermatology, Venereology and Leprosy, Baroda Medical College, Anandpura, Baroda, India
| | - Hiral A Shah
- Department of Dermatology, Venereology and Leprosy, Baroda Medical College, Anandpura, Baroda, India
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Sakagami H, Furukawa T, Satoh K, Amano S, Iijima Y, Koshikawa T, Asai D, Fukuchi K, Takemura H, Kanamoto T, Yokose S. Re-Evaluation of Chemotherapeutic Potential of Pyoktanin Blue. MEDICINES (BASEL, SWITZERLAND) 2021; 8:medicines8070033. [PMID: 34206186 PMCID: PMC8305689 DOI: 10.3390/medicines8070033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Background: Pyoktanin blue (PB) is used for staining tissues and cells, and it is applied in photodynamic therapy due to its potent bactericidal activity. However, clinical application of PB as an antiviral and antitumor agent has been limited due to its potent toxicity. For clinical application, the antitumor and antiviral activity as well as the neurotoxicity of PB were re-evaluated with a chemotherapeutic index. Methods: Tumor-specificity (TS) was determined by the ratio of CC50 against normal oral cells/oral squamous cell carcinoma (OSCC); neurotoxicity by that of normal oral/neuronal cells; antiviral activity by that of mock-infected/virus-infected cells; and potency-selectivity expression (PSE) by dividing TS by CC50 (OSCC). Results: Antitumor activity of PB (assessed by TS and PSE) was comparable with that of DXR and much higher than that of 5-FU and melphalan. PB induced caspase-3 activation and subG1 cell accumulation in an OSCC cell line (Ca9-22). PB and anticancer drugs showed comparable cytotoxicity against both neuronal cells and OSCC cell lines. PB showed no detectable anti-HIV/HSV activity, in contrast to reverse transferase inhibitors, sulfated glucans, and alkaline extract of leaves of S.P. Conclusions: PB showed first-class anticancer activity and neurotoxicity, suggesting the importance of establishing the safe treatment schedule.
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Affiliation(s)
- Hiroshi Sakagami
- Research Institute of Odontology (M-RIO), Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan;
| | - Toshiko Furukawa
- Division of Endodontics and Operative Dentistry, School of Dentistry, Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan; (T.F.); (S.Y.)
| | - Keitaro Satoh
- Division of Pharmacology, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan;
| | - Shigeru Amano
- Research Institute of Odontology (M-RIO), Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan;
| | - Yosuke Iijima
- Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama 350-8550, Japan;
| | - Takuro Koshikawa
- Department of Microbiology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan; (T.K.); (D.A.); (H.T.)
| | - Daisuke Asai
- Department of Microbiology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan; (T.K.); (D.A.); (H.T.)
- Laboratory of Microbiology, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan;
| | - Kunihiko Fukuchi
- Graduate School of Health Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan;
| | - Hiromu Takemura
- Department of Microbiology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan; (T.K.); (D.A.); (H.T.)
| | - Taisei Kanamoto
- Laboratory of Microbiology, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan;
| | - Satoshi Yokose
- Division of Endodontics and Operative Dentistry, School of Dentistry, Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan; (T.F.); (S.Y.)
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Chu H, Kim HJ, Lee MG. Xanthoma-like multiple yellowish nodular colloid degeneration on the face and scalp. J Eur Acad Dermatol Venereol 2016; 31:e195-e196. [PMID: 27550201 DOI: 10.1111/jdv.13937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- H Chu
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - H J Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - M G Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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