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Cui J, Wang TJ, Zhang YX, She LZ, Zhao YC. Molecular biological mechanisms of radiotherapy-induced skin injury occurrence and treatment. Biomed Pharmacother 2024; 180:117470. [PMID: 39321513 DOI: 10.1016/j.biopha.2024.117470] [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: 07/20/2024] [Revised: 09/03/2024] [Accepted: 09/19/2024] [Indexed: 09/27/2024] Open
Abstract
Radiotherapy-Induced Skin Injury (RISI) is radiation damage to normal skin tissue that primarily occurs during tumor Radiotherapy and occupational exposure. The risk of RISI is high due to the fact that the skin is not only the first body organ that ionizing radiation comes into contact with, but it is also highly sensitive to it, especially the basal cell layer and capillaries. Typical clinical manifestations of RISI include erythema, dry desquamation, moist desquamation, and ulcers, which have been established to significantly impact patient care and cancer treatment. Notably, our current understanding of RISI's pathological mechanisms and signaling pathways is inadequate, and no standard treatments have been established. Radiation-induced oxidative stress, inflammatory responses, fibrosis, apoptosis, and cellular senescence are among the known mechanisms that interact and promote disease progression. Additionally, radiation can damage all cellular components and induce genetic and epigenetic changes, which play a crucial role in the occurrence and progression of skin injury. A deeper understanding of these mechanisms and pathways is crucial for exploring the potential therapeutic targets for RISI. Therefore, in this review, we summarize the key mechanisms and potential treatment methods for RISI, offering a reference for future research and development of treatment strategies.
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Affiliation(s)
- Jie Cui
- Department of Radiation Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
| | - Tie-Jun Wang
- Department of Radiation Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
| | - Yu-Xuan Zhang
- Department of Radiation Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
| | - Li-Zhen She
- Department of Radiation Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
| | - Yue-Chen Zhao
- Department of Radiation Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
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Lee SY, Hwang G, Choi M, Jo CH, Oh SJ, Jin YB, Lee WJ, Rho GJ, Lee HC, Lee SL, Hwang TS. Histological and Molecular Biological Changes in Canine Skin Following Acute Radiation Therapy-Induced Skin Injury. Animals (Basel) 2024; 14:2505. [PMID: 39272290 PMCID: PMC11394491 DOI: 10.3390/ani14172505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/15/2024] Open
Abstract
Radiation therapy is a crucial cancer treatment, but it can damage healthy tissues, leading to side effects like skin injuries and molecular alterations. This study aimed to elucidate histological and molecular changes in canine skin post-radiation therapy (post-RT) over nine weeks, focusing on inflammation, stem cell activity, angiogenesis, keratinocyte regeneration, and apoptosis. Four male beagles received a cumulative radiation dose of 48 Gy, followed by clinical observations, histological examinations, and an RT-qPCR analysis of skin biopsies. Histological changes correlated with clinical recovery from inflammation. A post-RT analysis revealed a notable decrease in the mRNA levels of Oct4, Sox2, and Nanog from weeks 1 to 9. VEGF 188 levels initially saw a slight increase at week 1, but they had significantly declined by week 9. Both mRNA and protein levels of COX-2 and Keratin 10 significantly decreased over the 9 weeks following RT, although COX-2 expression surged in the first 2 weeks, and Keratin 10 levels increased at weeks 4 to 5 compared to normal skin. Apoptosis peaked at 2 weeks and diminished, nearing normal by 9 weeks. These findings offer insights into the mechanisms of radiation-induced skin injury and provide guidance for managing side effects in canine radiation therapy.
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Affiliation(s)
- Sang-Yun Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Gunha Hwang
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Moonyeong Choi
- Yangsan S Animal Cancer Center, Yangsan 50638, Republic of Korea
| | - Chan-Hee Jo
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Seong-Ju Oh
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Yeung Bae Jin
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Won-Jae Lee
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Gyu-Jin Rho
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
- Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hee Chun Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Sung-Lim Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
- Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Tae Sung Hwang
- College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
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Seo KJ, Alam MR, Abdul-Ghafar J, Kim SW, Kim HK, Choi HH, Sin SH, Lee HK, Chae HS. Tranilast Treatment Prevents Chronic Radiation-Induced Colitis in Rats by Inhibiting Mast Cell Infiltration. Pharmacology 2024:1-10. [PMID: 39163845 DOI: 10.1159/000541003] [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: 12/06/2023] [Accepted: 08/12/2024] [Indexed: 08/22/2024]
Abstract
INTRODUCTION Mast cells are the principal cells involved in acute and chronic colitis due to radiation, known as radiation-induced colitis (RIC). In this study, we investigated whether pretreatment with tranilast, a mast cell inhibitor, could alleviate chronic RIC. METHODS A total of 23 Sprague-Dawley rats were randomly divided into three groups: control group (n = 5), radiation group (RG, n = 9), and tranilast-pretreated radiation group (TG, n = 9). The rats in the RG and the TG were irradiated in the pelvic area (1.5 cm from the anus) with a single dose of 20 Gy under general anesthesia. Tranilast (100 mg/kg) was administered intraperitoneally to the rats of the TG for 10 days, starting from the day of pelvic radiation. Ten weeks after radiation, the rats were euthanized. Rectal tissue samples were histologically evaluated for the total inflammation score (TIS) and mast cell count. The expression of MUC2, MUC5AC, and matrix metalloproteinase-9 (MMP-9) was also assessed immunohistochemically. RESULTS Both the TIS and specific components of TIS such as epithelial atypia, vascular sclerosis, and colitis cystica profunda (CCP) were significantly higher in the RG than in the TG (p = 0.02, 0.038, 0.025, and 0.01, respectively). Thein number of infiltrating mast cells was significantly higher in the RG than in the TG (median [range]: 20 [3-54] versus 6 [3-25], respectively; p = 0.034). Quantitatively, the number of MMP-9-positive cells was significantly higher in the RG (23.67 ± 19.00) than in the TG (10.25 ± 8.45) (mean ± standard deviation; p < 0.05). TIS and MMP-9 exhibited a strong association (correlation coefficient r = 0.56, p < 0.05). Immunohistochemically, the mucin-lake of CCP showed no staining for MUC5AC but was stained positive for MUC2. CONCLUSION Tranilast pretreatment of chronic RIC showed an anti-inflammatory effect associated with the reduction of mast cell infiltration and MMP-9 expression.
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Affiliation(s)
- Kyung Jin Seo
- Department of Hospital Pathology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea,
| | - Mohammad Rizwan Alam
- Department of Hospital Pathology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jamshid Abdul-Ghafar
- Department of Hospital Pathology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Woo Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung Keun Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Ho Choi
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung Ho Sin
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hiun Suk Chae
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Bu L, Wang M, Liu X, Zhang M, Zhang Y, Zhang X, Liang F, Huang B, Huang J, Wu S, Tang X, Wang X, Zhang L. Emu oil alleviates atopic dermatitis-like responses by inhibiting Cdc42 signaling of keratinocyte. Int Immunopharmacol 2024; 139:112706. [PMID: 39032473 DOI: 10.1016/j.intimp.2024.112706] [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: 05/07/2024] [Revised: 07/15/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Emu oil is the oil extracted from the body fat of the Australian bird emu. Although previous studies have reported that emu oil has anti-inflammatory effects, the effect and mechanism of emu oil on the treatment of atopic dermatitis have not been reported. Here, 2, 4-dinitrofluorobenzene was used to induce atopic dermatitis-like appearance on the back skin of C57BL/6 mice. And then, the effect of emu oil in the atopic dermatitis treatment was evaluated. We found that emu oil reduced the transdermal water loss in the atopic dermatitis model. Additionally, the epidermal thickness treated with emu oil was significantly thinner. The number of mast cells and inflammatory cells were significantly decreased. The thymic stromal lymphopoietin (TSLP), which is secreted by keratinocyte, was decreased significantly after treatment. Moreover, the serum levels of cytokines TSLP, interleukin-4, interleukin-13, and immunoglobulin (Ig) E were decreased after emu oil treatment. Surprisingly, we found that the high level of Cdc42 expression in the atopic dermatitis, which was decreased after emu oil treatment. To detect the role of Cdc42 in atopic dermatitis, we constructed atopic dermatitis model in mice with sustained activation of Cdc42 signaling. Furthermore, we have confirmed that emu oil demonstrates anti-inflammatory effects in atopic dermatitis by inhibiting the expression of Cdc42 signaling in keratinocytes. In conclusion, we discovered a new role of Cdc42 in the development of atopic dermatitis, which mediated the therapeutic effect of emu oil on atopic dermatitis.
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Affiliation(s)
- Lingwei Bu
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Mei Wang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Xiaoran Liu
- Guangzhou Dublin International College of Life Sciences and Technology, South China Agricultural University, Guangzhou, China
| | - Min Zhang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Yarui Zhang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Xinyue Zhang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Fengting Liang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Bingli Huang
- GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China; School of Public Health, Southern Medical University, Guangzhou, China
| | - Jianyuan Huang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Shenhua Wu
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China
| | - Xueting Tang
- GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China; School of Public Health, Southern Medical University, Guangzhou, China
| | - Xueer Wang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China; Changji Branch Hospital of The First Affiliated Hospital of Xinjiang Medical University, Changji, China; Key Laboratory of Functional Proteomics of Guangdong Province, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
| | - Lin Zhang
- Department of Histology and Embryology,School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; GDMPA Key Laboratory of Key Technologies for Cosmetics Safety and Efficacy Evaluation, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Southern Medical University, Guangzhou, China.
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Mao G, Douglas D, Prajapati M, Janardhanam Raghavendra Rao T, Zheng H, Zhao C, Billack B. Investigation of inflammatory mechanisms induced by croton oil in mouse ear. Curr Res Toxicol 2024; 7:100184. [PMID: 39285937 PMCID: PMC11403446 DOI: 10.1016/j.crtox.2024.100184] [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: 01/15/2024] [Revised: 05/12/2024] [Accepted: 06/21/2024] [Indexed: 09/19/2024] Open
Abstract
Croton oil is liquid at room temperature, with a pale-yellow color and spicy odor. It is commonly used in combination with phenol as a chemical peeling agent in dermatology, which reveals its caustic exfoliating effects. Topical use of croton oil at a high dose produces skin irritation, inflammation, swelling, pain, and even tumors. Therefore, croton oil has been widely used for inflammation, pain, and tumor related research, with different animal models having been established. However, mechanistic studies through which croton oil induces skin swelling, injury and activates tissue repair/regeneration are limited. The present study used croton oil to induce mouse ear edema and examined tissue responses 4 h after exposure. To this end, croton oil was applied to the ventral side of mouse ears, followed by tissue collection. Samples were analyzed by hematoxylin and eosin (H&E) staining, toluidine blue staining, and immunohistochemistry staining for myeloperoxidase (MPO) and matrix metalloproteinase-9 (MMP-9). Western blotting and ELISA were also carried out for MMP-9 together with unbiased proteomic analysis using mass-spectrometry. Results from our study demonstrated that as soon as 4 h of exposure to 2.5 % croton oil, the expression levels of MPO and MMP-9 in the dermis significantly increased compared to acetone-treated (vehicle) control ears, as did other inflammatory reactions such as swelling and neutrophil aggregation and infiltration. Subsequently, proteomic analysis confirmed that croton oil treatment resulted in significant upregulation of proteins such as myeloperoxidase (MPO), matrix metalloproteinase-9 (MMP-9), and matrix metalloproteinase-8 (MMP-8) in the ear skin. Interestingly, mouse ears treated with acetone vehicle showed differential expression of 2,478 proteins relative to naïve tissues; among those differentially expressed in acetone-treated samples were members of the phosphatidylinositol-glycan biosynthesis class N, T and U proteins (PIGN, PIGT, and PIGU). Overall, this work confirms the presence of neutrophil-derived MPO and MMP-9 and extends the body of knowledge to show that MMP-8 is also present during croton oil-mediated skin inflammation in the mouse ear; moreover, we find that acetone vehicle is not inert and has effects on the skin that should be considered moving forward.
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Affiliation(s)
- Ganming Mao
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | - Dalon Douglas
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | - Milankumar Prajapati
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI 02912, USA
| | | | - Haiyan Zheng
- Center for Advanced Biotechnology and Medicine, Piscataway, NJ 08854, USA
| | - Caifeng Zhao
- Center for Advanced Biotechnology and Medicine, Piscataway, NJ 08854, USA
| | - Blase Billack
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
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Hsu PH, Chen YH, Huang PI, Hwang PA. Skin proteomic profiling of irradiation-induced fibrosis and its modulation by low molecular weight fucoidan via tight junction pathway. Biomed Pharmacother 2022; 153:113417. [DOI: 10.1016/j.biopha.2022.113417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/10/2022] [Accepted: 07/13/2022] [Indexed: 11/02/2022] Open
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