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Tamura Y, Ito A, Wakamatsu K, Torigoe T, Honda H, Ito S, Jimbow K. A Sulfur Containing Melanogenesis Substrate, N-Pr-4-S-CAP as a Potential Source for Selective Chemoimmunotherapy of Malignant Melanoma. Int J Mol Sci 2023; 24:ijms24065235. [PMID: 36982309 PMCID: PMC10049105 DOI: 10.3390/ijms24065235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
N-propionyl-4-S-cysteaminylphenol (N-Pr-4-S-CAP) is a substrate for tyrosinase, which is a melanin biosynthesis enzyme and has been shown to be selectively incorporated into melanoma cells. It was found to cause selective cytotoxicity against melanocytes and melanoma cells after selective incorporation, resulting in the induction of anti-melanoma immunity. However, the underlying mechanisms for the induction of anti-melanoma immunity remain unclear. This study aimed to elucidate the cellular mechanism for the induction of anti-melanoma immunity and clarify whether N-Pr-4-S-CAP administration could be a new immunotherapeutic approach against melanoma, including local recurrence and distant metastasis. A T cell depletion assay was used for the identification of the effector cells responsible for N-Pr-4-S-CAP-mediated anti-melanoma immunity. A cross-presentation assay was carried out by using N-Pr-4-S-CAP-treated B16-OVA melanoma-loaded bone marrow-derived dendritic cells (BMDCs) and OVA-specific T cells. Administration of N-Pr-4-S-CAP induced CD8+ T cell-dependent anti-melanoma immunity and inhibited the growth of challenged B16F1 melanoma cells, indicating that the administration of N-Pr-4-S-CAP can be a prophylactic therapy against recurrence and metastasis of melanoma. Moreover, intratumoral injection of N-Pr-4-S-CAP in combination with BMDCs augmented the tumor growth inhibition when compared with administration of N-Pr-4-S-CAP alone. BMDCs cross-presented a melanoma-specific antigen to CD8+ T cells through N-Pr-4-S-CAP-mediated melanoma cell death. Combination therapy using N-Pr-4-S-CAP and BMDCs elicited a superior anti-melanoma effect. These results suggest that the administration of N-Pr-4-S-CAP could be a new strategy for the prevention of local recurrence and distant metastasis of melanoma.
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Affiliation(s)
- Yasuaki Tamura
- Department of Pathology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo 060-8556, Hokkaido, Japan;
- Correspondence: ; Tel.: +81-(0)11-611-2111; Fax: +81-(0)11-643-2310
| | - Akira Ito
- Department of Chemical Systems Engineering, School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Aichi, Japan;
| | - Kazumasa Wakamatsu
- Institute for Melanin Chemistry, Fujita Health University, 1-98 Degakugakubo, Kutsukake-cho, Toyoake 470-1192, Aichi, Japan; (K.W.); (S.I.)
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo 060-8556, Hokkaido, Japan;
| | - Hiroyuki Honda
- Department of Biomolecular Engineering, School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Aichi, Japan;
| | - Shosuke Ito
- Institute for Melanin Chemistry, Fujita Health University, 1-98 Degakugakubo, Kutsukake-cho, Toyoake 470-1192, Aichi, Japan; (K.W.); (S.I.)
| | - Kowichi Jimbow
- Institute of Dermatology & Cutaneous Sciences, 1-27 Odori West 17, Chuo-ku, Sapporo 060-0042, Hokkaido, Japan;
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Sakamoto E, Katahira Y, Mizoguchi I, Watanabe A, Furusaka Y, Sekine A, Yamagishi M, Sonoda J, Miyakawa S, Inoue S, Hasegawa H, Yo K, Yamaji F, Toyoda A, Yoshimoto T. Chemical- and Drug-Induced Allergic, Inflammatory, and Autoimmune Diseases Via Haptenation. BIOLOGY 2023; 12:biology12010123. [PMID: 36671815 PMCID: PMC9855847 DOI: 10.3390/biology12010123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/23/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Haptens are small molecules that only elicit an immune response when bound to proteins. Haptens initially bind to self-proteins and activate innate immune responses by complex mechanisms via inflammatory cytokines and damage-associated molecular patterns and the subsequent upregulation of costimulatory signals such as cluster of differentiation 86 (CD86) on dendritic cells. Subsequent interactions between CD86 and CD28 on T cells are critically important for properly activating naive T cells and inducing interleukin 2 production, leading to the establishment of adaptive immunity via effector and memory T cells. Accumulating evidence revealed the involvement of haptens in the development of various autoimmune-like diseases such as allergic, inflammatory, and autoimmune diseases including allergic contact dermatitis, atopy, asthma, food allergy, inflammatory bowel diseases, hemolytic anemia, liver injury, leukoderma, and even antitumor immunity. Therefore, the development of in vitro testing alternatives to evaluate in advance whether a substance might lead to the development of these diseases is highly desirable. This review summarizes and discusses recent advances in chemical- and drug-induced allergic, inflammatory, and autoimmune diseases via haptenation and the possible molecular underlying mechanisms, as well as in vitro testing alternatives to evaluate in advance whether a substance might cause the development of these diseases.
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Affiliation(s)
- Eri Sakamoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Yasuhiro Katahira
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Izuru Mizoguchi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Aruma Watanabe
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Yuma Furusaka
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Ami Sekine
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Miu Yamagishi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Jukito Sonoda
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Satomi Miyakawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Shinya Inoue
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Hideaki Hasegawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Kazuyuki Yo
- POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama-shi 244-0812, Kanagawa, Japan
| | - Fumiya Yamaji
- POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama-shi 244-0812, Kanagawa, Japan
| | - Akemi Toyoda
- POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama-shi 244-0812, Kanagawa, Japan
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
- Correspondence: ; Tel.: +81-3-3351-6141
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Katahira Y, Sakamoto E, Watanabe A, Furusaka Y, Inoue S, Hasegawa H, Mizoguchi I, Yo K, Yamaji F, Toyoda A, Yoshimoto T. Upregulation of CD86 and IL-12 by rhododendrol in THP-1 cells cocultured with melanocytes through ROS and ATP. J Dermatol Sci 2022; 108:167-177. [PMID: 36610941 DOI: 10.1016/j.jdermsci.2022.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND The tyrosinase inhibitor rhododendrol (RD), used as a skin whitening agent, reportedly has the potential to induce leukoderma. OBJECTIVE Although an immune response toward melanocytes was demonstrated to be involved in leukoderma, the molecular mechanism is not fully understood. METHODS We hypothesized that if RD is a pro-hapten and tyrosinase-oxidized RD metabolites are melanocyte-specific sensitizers, the sensitizing process could be reproduced by the human cell line activation test (h-CLAT) cocultured with melanocytes (h-CLATw/M) composed of human DC THP-1 cells and melanoma SK-MEL-37 cells. Cell surface expression, ROS generation and ATP release, mRNA expression, and the effects of several inhibitors were examined. RESULTS When RD was added to the h-CLATw/M, the expression of cell-surface CD86 and IL-12 mRNA was greatly enhanced in THP-1 cells compared with those in the h-CLAT. The rapid death of melanoma cells was induced, with ROS generation and ATP release subsequently being greatly enhanced, resulting in the cooperative upregulation of CD86 and IL-12. Consistent with those observations, an ROS inhibitor, ATP receptor P2X7 antagonist, or PERK inhibitor antagonized the upregulation. CD86 upregulation was similarly observed with another leukoderma-inducible tyrosinase inhibitor, raspberry ketone, but not with the leukoderma noninducible skin-whitening agents ascorbic acid and tranexamic acid. CONCLUSION RD is a pro-hapten sensitizer dependent on tyrosinase that induces ROS generation and ATP release from melanocytes for CD86 and IL-12 upregulation in DCs, possibly leading to the generation of tyrosinase-specific cytotoxic T lymphocytes. The coculture system h-CLATw/M may be useful for predicting the sensitizing potential to induce leukoderma.
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Affiliation(s)
- Yasuhiro Katahira
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Eri Sakamoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Aruma Watanabe
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Yuma Furusaka
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Shinya Inoue
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Hideaki Hasegawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Izuru Mizoguchi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Kazuyuki Yo
- POLA Chemical Industries, Inc., Kanagawa, Japan
| | | | | | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan.
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Molecular Events in the Melanogenesis Cascade as Novel Melanoma-Targeted Small Molecules: Principle and Development. Cancers (Basel) 2022; 14:cancers14225588. [PMID: 36428680 PMCID: PMC9688330 DOI: 10.3390/cancers14225588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Malignant melanoma is one of the most malignant of all cancers. Melanoma occurs at the epidermo-dermal interface of the skin and mucosa, where small vessels and lymphatics are abundant. Consequently, from the onset of the disease, melanoma easily metastasizes to other organs throughout the body via lymphatic and blood circulation. At present, the most effective treatment method is surgical resection, and other attempted methods, such as chemotherapy, radiotherapy, immunotherapy, targeted therapy, and gene therapy, have not yet produced sufficient results. Since melanogenesis is a unique biochemical pathway that functions only in melanocytes and their neoplastic counterparts, melanoma cells, the development of drugs that target melanogenesis is a promising area of research. Melanin consists of small-molecule derivatives that are always synthesized by melanoma cells. Amelanosis reflects the macroscopic visibility of color changes (hypomelanosis). Under microscopy, melanin pigments and their precursors are present in amelanotic melanoma cells. Tumors can be easily targeted by small molecules that chemically mimic melanogenic substrates. In addition, small-molecule melanin metabolites are toxic to melanocytes and melanoma cells and can kill them. This review describes our development of chemo-thermo-immunotherapy based on the synthesis of melanogenesis-based small-molecule derivatives and conjugation to magnetite nanoparticles. We also introduce the other melanogenesis-related chemotherapy and thermal medicine approaches and discuss currently introduced targeted therapies with immune checkpoint inhibitors for unresectable/metastatic melanoma.
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Immunomodulation of Melanoma by Chemo-Thermo-Immunotherapy Using Conjugates of Melanogenesis Substrate NPrCAP and Magnetite Nanoparticles: A Review. Int J Mol Sci 2022; 23:ijms23126457. [PMID: 35742905 PMCID: PMC9223671 DOI: 10.3390/ijms23126457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/31/2022] [Accepted: 06/07/2022] [Indexed: 12/30/2022] Open
Abstract
A major advance in drug discovery and targeted therapy directed at cancer cells may be achieved by the exploitation and immunomodulation of their unique biological properties. This review summarizes our efforts to develop novel chemo-thermo-immunotherapy (CTI therapy) by conjugating a melanogenesis substrate, N-propionyl cysteaminylphenol (NPrCAP: amine analog of tyrosine), with magnetite nanoparticles (MNP). In our approach, NPrCAP provides a unique drug delivery system (DDS) because of its selective incorporation into melanoma cells. It also functions as a melanoma-targeted therapeutic drug because of its production of highly reactive free radicals (melanoma-targeted chemotherapy). Moreover, the utilization of MNP is a platform to develop thermo-immunotherapy because of heat shock protein (HSP) expression upon heat generation in MNP by exposure to an alternating magnetic field (AMF). This comprehensive review covers experimental in vivo and in vitro mouse melanoma models and preliminary clinical trials with a limited number of advanced melanoma patients. We also discuss the future directions of CTI therapy.
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Ito S, Sugumaran M, Wakamatsu K. Chemical Reactivities of ortho-Quinones Produced in Living Organisms: Fate of Quinonoid Products Formed by Tyrosinase and Phenoloxidase Action on Phenols and Catechols. Int J Mol Sci 2020; 21:ijms21176080. [PMID: 32846902 PMCID: PMC7504153 DOI: 10.3390/ijms21176080] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/27/2022] Open
Abstract
Tyrosinase catalyzes the oxidation of phenols and catechols (o-diphenols) to o-quinones. The reactivities of o-quinones thus generated are responsible for oxidative browning of plant products, sclerotization of insect cuticle, defense reaction in arthropods, tunichrome biochemistry in tunicates, production of mussel glue, and most importantly melanin biosynthesis in all organisms. These reactions also form a set of major reactions that are of nonenzymatic origin in nature. In this review, we summarized the chemical fates of o-quinones. Many of the reactions of o-quinones proceed extremely fast with a half-life of less than a second. As a result, the corresponding quinone production can only be detected through rapid scanning spectrophotometry. Michael-1,6-addition with thiols, intramolecular cyclization reaction with side chain amino groups, and the redox regeneration to original catechol represent some of the fast reactions exhibited by o-quinones, while, nucleophilic addition of carboxyl group, alcoholic group, and water are mostly slow reactions. A variety of catecholamines also exhibit side chain desaturation through tautomeric quinone methide formation. Therefore, quinone methide tautomers also play a pivotal role in the fate of numerous o-quinones. Armed with such wide and dangerous reactivity, o-quinones are capable of modifying the structure of important cellular components especially proteins and DNA and causing severe cytotoxicity and carcinogenic effects. The reactivities of different o-quinones involved in these processes along with special emphasis on mechanism of melanogenesis are discussed.
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Affiliation(s)
- Shosuke Ito
- Department of Chemistry, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Correspondence: (S.I.); (K.W.); Tel.: +81-562-93-9849 (S.I. & K.W.); Fax: +81-562-93-4595 (S.I. & K.W.)
| | - Manickam Sugumaran
- Department of Biology, University of Massachusetts, Boston, MA 02125, USA;
| | - Kazumasa Wakamatsu
- Department of Chemistry, Fujita Health University School of Medical Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Correspondence: (S.I.); (K.W.); Tel.: +81-562-93-9849 (S.I. & K.W.); Fax: +81-562-93-4595 (S.I. & K.W.)
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Ito S, Wakamatsu K. Biochemical Mechanism of Rhododendrol-Induced Leukoderma. Int J Mol Sci 2018; 19:E552. [PMID: 29439519 PMCID: PMC5855774 DOI: 10.3390/ijms19020552] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/09/2018] [Accepted: 02/10/2018] [Indexed: 01/12/2023] Open
Abstract
RS-4-(4-hydroxyphenyl)-2-butanol (rhododendrol (RD))-a skin-whitening ingredient-was reported to induce leukoderma in some consumers. We have examined the biochemical basis of the RD-induced leukoderma by elucidating the metabolic fate of RD in the course of tyrosinase-catalyzed oxidation. We found that the oxidation of racemic RD by mushroom tyrosinase rapidly produces RD-quinone, which gives rise to secondary quinone products. Subsequently, we confirmed that human tyrosinase is able to oxidize both enantiomers of RD. We then showed that B16 cells exposed to RD produce high levels of RD-pheomelanin and protein-SH adducts of RD-quinone. Our recent studies showed that RD-eumelanin-an oxidation product of RD-exhibits a potent pro-oxidant activity that is enhanced by ultraviolet-A radiation. In this review, we summarize our biochemical findings on the tyrosinase-dependent metabolism of RD and related studies by other research groups. The results suggest two major mechanisms of cytotoxicity to melanocytes. One is the cytotoxicity of RD-quinone through binding with sulfhydryl proteins that leads to the inactivation of sulfhydryl enzymes and protein denaturation that leads to endoplasmic reticulum stress. The other mechanism is the pro-oxidant activity of RD-derived melanins that leads to oxidative stress resulting from the depletion of antioxidants and the generation of reactive oxygen radicals.
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Affiliation(s)
- Shosuke Ito
- Department of Chemistry, Fujita Health University School of Health Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan.
| | - Kazumasa Wakamatsu
- Department of Chemistry, Fujita Health University School of Health Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan.
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Ito S, Hinoshita M, Suzuki E, Ojika M, Wakamatsu K. Tyrosinase-Catalyzed Oxidation of the Leukoderma-Inducing Agent Raspberry Ketone Produces (E)-4-(3-Oxo-1-butenyl)-1,2-benzoquinone: Implications for Melanocyte Toxicity. Chem Res Toxicol 2017; 30:859-868. [PMID: 28219012 DOI: 10.1021/acs.chemrestox.7b00006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The exposure of human skin to 4-(4-hydroxyphenyl)-2-butanone (raspberry ketone, RK) is known to cause chemical/occupational leukoderma. RK has a structure closely related to 4-(4-hydroxyphenyl)-2-butanol (rhododendrol), a skin whitening agent that was found to cause leukoderma in the skin of consumers in 2013. Rhododendrol is a good substrate for tyrosinase and causes a tyrosinase-dependent cytotoxicity to melanocytes, cells that are responsible for skin pigmentation. Therefore, it is expected that RK exerts its cytotoxicity to melanocytes through the tyrosinase-catalyzed oxidation to cytotoxic o-quinones. The results of this study demonstrate that the oxidation of RK by mushroom tyrosinase rapidly produces 4-(3-oxobutyl)-1,2-benzoquinone (RK-quinone), which is converted within 10-20 min to (E)-4-(3-oxo-1-butenyl)-1,2-benzoquinone (DBL-quinone). These quinones were identified as their corresponding catechols after reduction by ascorbic acid. RK-quinone and DBL-quinone quantitatively bind to the small thiol N-acetyl-l-cysteine to form thiol adducts and can also bind to the thiol protein bovine serum albumin through its cysteinyl residue. DBL-quinone is more reactive than RK-quinone, as judged by their half-lives (6.2 min vs 10.5 min, respectively), and decays rapidly to form an oligomeric pigment (RK-oligomer). The RK-oligomer can oxidize GSH to GSSG with a concomitant production of hydrogen peroxide, indicating its pro-oxidant activity, similar to that of the RD-oligomer. These results suggest that RK is cytotoxic to melanocytes through the binding of RK-derived quinones to thiol proteins and the pro-oxidant activity of the RK-oligomer.
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Affiliation(s)
- Shosuke Ito
- Department of Chemistry, Fujita Health University School of Health Sciences , Toyoake, Aichi 470-1192, Japan
| | - Maki Hinoshita
- Department of Chemistry, Fujita Health University School of Health Sciences , Toyoake, Aichi 470-1192, Japan
| | - Erina Suzuki
- Department of Chemistry, Fujita Health University School of Health Sciences , Toyoake, Aichi 470-1192, Japan
| | - Makoto Ojika
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University , Nagoya 464-8601, Japan
| | - Kazumasa Wakamatsu
- Department of Chemistry, Fujita Health University School of Health Sciences , Toyoake, Aichi 470-1192, Japan
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Okura M, Yamashita T, Ishii-Osai Y, Yoshikawa M, Sumikawa Y, Wakamatsu K, Ito S. Effects of rhododendrol and its metabolic products on melanocytic cell growth. J Dermatol Sci 2015; 80:142-9. [DOI: 10.1016/j.jdermsci.2015.07.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 06/10/2015] [Accepted: 07/21/2015] [Indexed: 11/26/2022]
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Three-dimensional magnetic cell array for evaluation of anti-proliferative effects of chemo-thermo treatment on cancer spheroids. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-014-0724-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ito S, Okura M, Nakanishi Y, Ojika M, Wakamatsu K, Yamashita T. Tyrosinase-catalyzed metabolism of rhododendrol (RD) in B16 melanoma cells: production of RD-pheomelanin and covalent binding with thiol proteins. Pigment Cell Melanoma Res 2015; 28:295-306. [PMID: 25713930 DOI: 10.1111/pcmr.12363] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/18/2015] [Indexed: 11/29/2022]
Abstract
RS-4-(4-Hydroxyphenyl)-2-butanol (rhododendrol, RD) was reported to induce leukoderma of the skin. To explore the mechanism underlying that effect, we previously showed that oxidation of RD with mushroom tyrosinase produces RD-quinone, which is converted to secondary quinone products, and we suggested that those quinones are cytotoxic because they bind to cellular proteins and produce reactive oxygen species. We then confirmed that human tyrosinase can oxidize both enantiomers of RD. In this study, we examined the metabolism of RD in B16F1 melanoma cells in vitro. Using 4-amino-3-hydroxy-n-butylbenzene as a specific indicator, we detected moderate levels of RD-pheomelanin in B16F1 cells exposed to 0.3 to 0.5 mM RD for 72 h. We also confirmed the covalent binding of RD-quinone to non-protein thiols and proteins through cysteinyl residues. The covalent binding of RD-quinone to proteins was 20- to 30-fold greater than dopaquinone. These results suggest that the tyrosinase-induced metabolism of RD causes melanocyte toxicity.
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Affiliation(s)
- Shosuke Ito
- Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Aichi, Japan
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Ito S, Gerwat W, Kolbe L, Yamashita T, Ojika M, Wakamatsu K. Human tyrosinase is able to oxidize both enantiomers of rhododendrol. Pigment Cell Melanoma Res 2014; 27:1149-53. [PMID: 25130058 DOI: 10.1111/pcmr.12300] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 07/25/2014] [Indexed: 11/27/2022]
Abstract
Racemic RS-4-(4-hydroxyphenyl)-2-butanol (rhododendrol, RD) was used as a topical skin-whitening agent until it was recently reported to induce leukoderma. We then showed that oxidation of RD with mushroom tyrosinase rapidly produces RD-quinone, which is quickly converted to RD-cyclic quinone and RD-hydroxy-p-quinone. In this study, we examined whether either or both of the enantiomers of RD can be oxidized by human tyrosinase. Using a chiral HPLC column, racemic RD was resolved optically to R(-)-RD and S(+)-RD enantiomers. In the presence of a catalytic amount of l-dopa, human tyrosinase, which can oxidize l-tyrosine but not d-tyrosine, was found to oxidize both R(-)- and S(+)-RD to give RD-catechol and its oxidation products. S(+)-RD was more effectively oxidized than l-tyrosine, while R(-)-RD was less effective. These results support the notion that the melanocyte toxicity of RD depends on its tyrosinase-catalyzed conversion to toxic quinones and the concomitant production of reactive oxygen species.
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Affiliation(s)
- Shosuke Ito
- Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Aichi, Japan
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Ito S, Ojika M, Yamashita T, Wakamatsu K. Tyrosinase-catalyzed oxidation of rhododendrol produces 2-methylchromane-6,7-dione, the putative ultimate toxic metabolite: implications for melanocyte toxicity. Pigment Cell Melanoma Res 2014; 27:744-53. [DOI: 10.1111/pcmr.12275] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 05/30/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Shosuke Ito
- Department of Chemistry; Fujita Health University School of Health Sciences; Toyoake Aichi Japan
| | - Makoto Ojika
- Department of Applied Molecular Biosciences; Graduate School of Bioagricultural Sciences; Nagoya University; Nagoya Japan
| | - Toshiharu Yamashita
- Department of Dermatology; Sapporo Medical University School of Medicine; Sapporo Japan
| | - Kazumasa Wakamatsu
- Department of Chemistry; Fujita Health University School of Health Sciences; Toyoake Aichi Japan
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14
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Mizote Y, Wakamatsu K, Ito S, Uenaka A, Ohue Y, Kurose K, Isobe M, Ito A, Tamura Y, Honda H, Yamashita T, Nohara S, Oka M, Jimbow K, Nakayama E. TLR4 and NLRP3 inflammasome activation in monocytes by N-propionyl cysteaminylphenol-maleimide-dextran (NPCMD). J Dermatol Sci 2013; 73:209-15. [PMID: 24315204 DOI: 10.1016/j.jdermsci.2013.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/07/2013] [Accepted: 11/07/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND N-propionyl cysteaminylphenol-maleimide-dextran (NPCMD) is a toxic tyrosinase substrate developed to treat melanoma. OBJECTIVE We investigated the effect of NPCMD on innate immune responses in monocytes. METHODS CD14⁺ monocytes and a monocytic cell line, THP-1, were stimulated with NPCMD in vitro. Cytokines in the culture supernatants were determined by ELISA and flow cytometry. RESULTS NPCMD stimulated CD14⁺ monocytes and THP-1 cells to secrete TNFα, IL-6 and IL-8, but not IL-10 or IL-12. TNFα secretion from THP-1 cells stimulated with NPCMD was inhibited by addition of an anti-TLR4 mAb in culture. Moreover, NPCMD stimulated production of pro-IL-1β in CD14⁺ monocytes and monocytic cell line THP-1 cells and activated the NLRP3-inflammasome, resulting in production of mature IL-1β. Use of ASC and NLRP3-deficient THP-1 cell lines established involvement of the NLRP3 inflammasome in an IL-1β secretion in treatment with NPCMD. Inhibition of IL-1β secretion by an endocytosis inhibitor, cytochalasin B, and a lysosomal enzyme cathepsin B inhibitor, CA-074 Me, suggested the involvement of lysosomal rupture and leakage of cathepsin B into the cytosol in NLRP3 activation by NPCMD. CONCLUSION The immunopotentiating effect of NPCMD mediated by TLR4 and NLRP3 inflammasome activation could be useful for eliciting effective adaptive immune responses against melanoma and other tumors.
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Affiliation(s)
- Yu Mizote
- Department of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan; Department of Respiratory Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Kazumasa Wakamatsu
- Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Shosuke Ito
- Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Akiko Uenaka
- Faculty of Health and Welfare, Kawasaki University of Medical Welfare, Kurashiki, Japan
| | - Yoshihiro Ohue
- Department of Respiratory Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Koji Kurose
- Department of Respiratory Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Midori Isobe
- Department of Respiratory Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Akira Ito
- Department of Chemical Engineering, Faculty of Engineering, Kyusyu University, Fukuoka, Japan
| | - Yasuaki Tamura
- Department of Pathology, Sapporo Medical Univeristy School of Medicine, Sapporo, Japan
| | - Hiroyuki Honda
- Department of Biotechnology, School of Engineering, Nagoya University, Nagoya, Japan
| | - Toshiharu Yamashita
- Department of Dermatology, Sapporo Medical Univeristy School of Medicine, Sapporo, Japan
| | | | - Mikio Oka
- Department of Respiratory Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Kowichi Jimbow
- Department of Dermatology, Sapporo Medical Univeristy School of Medicine, Sapporo, Japan
| | - Eiichi Nakayama
- Faculty of Health and Welfare, Kawasaki University of Medical Welfare, Kurashiki, Japan.
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15
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Melanoma-Targeted Chemothermotherapy and In Situ Peptide Immunotherapy through HSP Production by Using Melanogenesis Substrate, NPrCAP, and Magnetite Nanoparticles. J Skin Cancer 2013; 2013:742925. [PMID: 23533767 PMCID: PMC3595688 DOI: 10.1155/2013/742925] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 01/08/2013] [Accepted: 01/22/2013] [Indexed: 12/01/2022] Open
Abstract
Exploitation of biological properties unique to cancer cells may provide a novel approach to overcome difficult challenges to the treatment of advanced melanoma. In order to develop melanoma-targeted chemothermoimmunotherapy, a melanogenesis substrate, N-propionyl-4-S-cysteaminylphenol (NPrCAP), sulfur-amine analogue of tyrosine, was conjugated with magnetite nanoparticles. NPrCAP was exploited from melanogenesis substrates, which are expected to be selectively incorporated into melanoma cells and produce highly reactive free radicals through reacting with tyrosinase, resulting in chemotherapeutic and immunotherapeutic effects by oxidative stress and apoptotic cell death. Magnetite nanoparticles were conjugated with NPrCAP to introduce thermotherapeutic and immunotherapeutic effects through nonapoptotic cell death and generation of heat shock protein (HSP) upon exposure to alternating magnetic field (AMF). During these therapeutic processes, NPrCAP was also expected to provide melanoma-targeted drug delivery system.
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