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Xu S, Zhu Y, Wang P, Qi S, Shu B. Derazantinib Inhibits the Bioactivity of Keloid Fibroblasts via FGFR Signaling. Biomedicines 2023; 11:3220. [PMID: 38137441 PMCID: PMC10741236 DOI: 10.3390/biomedicines11123220] [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: 05/15/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Keloids are common benign cutaneous pathological fibrous proliferation diseases, which are difficult to cure and easily recur. Studies have shown that fibroblast growth factor receptor-1 (FGFR1) was enhanced in pathological fibrous proliferation diseases, such as cirrhosis and idiopathic pulmonary fibrosis (IPF), suggesting the FGFR1 pathway has potential for keloid treatment. Derazantinib is a selective FGFR inhibitor with antiproliferative activity in in vitro and in vivo models. The present study determined the effects of derazantinib on human keloid fibroblasts (KFs). Cell viability assay, migration assay, invasion assay, immunofluorescence staining, quantitative polymerase chain reaction, Western blot analysis, HE staining, Masson staining, and immunohistochemical analysis were used to analyze the KFs and keloid xenografts. In this study, we found that derazantinib inhibited the proliferation, migration, invasion, and collagen production of KFs in vitro. The transcription and expression of plasminogen activator inhibitor-1 (PAI-1), which is closely related to collagen deposition and tissue fibrosis, was significantly inhibited. Also, derazantinib inhibited the expression of FGFR1 and PAI-1 and reduced the weight of the implanted keloid from the xenograft mice model. These findings suggest that derazantinib may be a potent therapy for keloids via FGFR signaling.
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Affiliation(s)
- Shuqia Xu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China;
| | - Yongkang Zhu
- Department of Burn Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (Y.Z.); (P.W.)
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen 518025, China
| | - Peng Wang
- Department of Burn Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (Y.Z.); (P.W.)
| | - Shaohai Qi
- Department of Burn Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (Y.Z.); (P.W.)
| | - Bin Shu
- Department of Burn Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; (Y.Z.); (P.W.)
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Wang X, Yan X, Huang F, Wu L. Adiponectin inhibits TGF-β1-induced skin fibroblast proliferation and phenotype transformation via the p38 MAPK signaling pathway. Open Life Sci 2023; 18:20220679. [PMID: 37589003 PMCID: PMC10426755 DOI: 10.1515/biol-2022-0679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/25/2023] [Accepted: 07/18/2023] [Indexed: 08/18/2023] Open
Abstract
The aim of this study was to investigate the effects of adiponectin (APN) on the proliferation and phenotypic transformation of human skin fibroblasts (HSFs) induced by TGF-β1. Primary fibroblast cultures were collected from prepuce surgery, and the cell viability and proliferative activity of HSFs were detected by Cell Counting Kit-8 and EdU assays. In addition, cell migration was detected by Transwell assay. The protein levels of related genes in HSF were detected by Western blotting. The results showed that the proliferation and migration abilities of HSF in the TGF-β1 group were significantly improved, and the relative protein expression levels of PCNA, α-SMA, and Collagen I in the TGF-β1 group were greatly increased. Furthermore, TGF-β1 stimulated the phosphorylation of p38 in HSF, while APN pretreatment significantly inhibited the TGF-β1-induced phosphorylation of p38. Additionally, blocking the p38 MAPK signaling pathway relieved the injury in the HSF induced by TGF-β1 and enhanced the therapeutic effect of APN in the TGF-β1-treated HSF. In conclusion, APN inhibits TGF-β1-induced HSF proliferation and myofibroblast phenotypic transformation by activating the p38 MAPK signaling pathway. APN is expected to become a potential target for preventing and treating skin fibrosis and pathological scars.
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Affiliation(s)
- Xueling Wang
- School of Medicine, Taizhou University, No. 1139, Shifu Avenue, Taizhou, Zhejiang 318000, China
| | - Xiaoting Yan
- Taizhou Central Hospital, Taizhou, 318000, China
| | - Fang Huang
- School of Medicine, Taizhou University, No. 1139, Shifu Avenue, Taizhou, Zhejiang 318000, China
| | - Lijuan Wu
- School of Medicine, Taizhou University, No. 1139, Shifu Avenue, Taizhou, Zhejiang 318000, China
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Kurniawati Y, Rodian MS, Argentina F, Prasasty GD, Dalilah D, Nathania A. Association Between Sebum, Total Cholesterol, and Low-Density Lipoprotein (LDL) Cholesterol Levels With Post-acne Keloids. Cureus 2023; 15:e43096. [PMID: 37692568 PMCID: PMC10484038 DOI: 10.7759/cureus.43096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
Background Prolonged acne inflammation causes scar formation, one of which is post-acne keloids. Sebum, total cholesterol, and low-density lipoprotein (LDL) level can influence post-acne keloids. This study aims to determine the association between sebum, total cholesterol, and LDL levels with post-acne keloids to better define the predisposing factors for this condition. Methods This study used primary data involving sociodemographics, clinical features, keloid classification, sebum levels, total cholesterol levels, and LDL levels in post-acne keloid patients at the Dermatology, Venereology, and Aesthetics Outpatient Clinics of Dr. Mohammad Hoesin General Hospital Palembang, Indonesia. Study samples were patients who fulfilled the inclusion and exclusion criteria by consecutive sampling. The data then underwent univariate and bivariate analyses to show the association between variables. Result A total of 22 patients with post-acne keloids participated. The subjects presented mostly with major keloids based on the classification (59.1%). The patients were predominantly 21-30 years old (50%) and male (90.9%). The keloids had onsets >six months to one year (45.5%), durations of one to five years (77.3%), and multiple presentations (68.2%). Vancouver Scar Scale (VSS) assessment showed mainly red vascularity (40.9%), mixed pigmentation (68.2%), >5 mm keloid height (59.1%), and firm pliability (40.9%). Most patients presented with pruritus (86.4%) but without pain (54.5%). Most had low levels of sebum (50%), normal total cholesterol (90.9%), and near-optimal LDL level (40.9%). There were no significant association between sebum (p = 1.000), total cholesterol (p = 1.000), and LDL (p = 0.376) levels with post-acne keloids. However, LDL levels above normal were most found in this study (68.2%). Conclusions There is no association between sebum, total cholesterol, and LDL levels with post-acne keloids. Despite the fact that LDL level was not statistically significant, there has been a rise in LDL level in the research subjects. Further research with a larger number of subjects and consideration of multicenter study through retrospective/prospective methods and complete lipid profile examinations is still required to provide a more representative study.
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Affiliation(s)
- Yuli Kurniawati
- Dermatology and Venereology, Dr. Mohammad Hoesin General Hospital, Sriwijaya University, Palembang, IDN
| | - M Soleh Rodian
- Medical School, Faculty of Medicine, Sriwijaya University, Palembang, IDN
| | - Fifa Argentina
- Dermatology and Venereology, Dr. Mohammad Hoesin General Hospital, Sriwijaya University, Palembang, IDN
| | | | | | - Amanda Nathania
- Dermatology and Venereology Department, Faculty of Medicine, Sriwijaya University, Palembang, IDN
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Abdalla MMI, Mohanraj J, Somanath SD. Adiponectin as a therapeutic target for diabetic foot ulcer. World J Diabetes 2023; 14:758-782. [PMID: 37383591 PMCID: PMC10294063 DOI: 10.4239/wjd.v14.i6.758] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/25/2023] [Accepted: 04/24/2023] [Indexed: 06/14/2023] Open
Abstract
The global burden of diabetic foot ulcers (DFUs) is a significant public health concern, affecting millions of people worldwide. These wounds cause considerable suffering and have a high economic cost. Therefore, there is a need for effective strategies to prevent and treat DFUs. One promising therapeutic approach is the use of adiponectin, a hormone primarily produced and secreted by adipose tissue. Adiponectin has demonstrated anti-inflammatory and anti-atherogenic properties, and researchers have suggested its potential therapeutic applications in the treatment of DFUs. Studies have indicated that adiponectin can inhibit the production of pro-inflammatory cytokines, increase the production of vascular endothelial growth factor, a key mediator of angiogenesis, and inhibit the activation of the intrinsic apoptotic pathway. Additionally, adiponectin has been found to possess antioxidant properties and impact glucose metabolism, the immune system, extracellular matrix remodeling, and nerve function. The objective of this review is to summarize the current state of research on the potential role of adiponectin in the treatment of DFUs and to identify areas where further research is needed in order to fully understand the effects of adiponectin on DFUs and to establish its safety and efficacy as a treatment for DFUs in the clinical setting. This will provide a deeper understanding of the underlying mechanisms of DFUs that can aid in the development of new and more effective treatment strategies.
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Affiliation(s)
- Mona Mohamed Ibrahim Abdalla
- Department of Physiology, Human Biology Division, School of Medicine, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Jaiprakash Mohanraj
- Department of Biochemistry, Human Biology Division, School of Medicine, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Sushela Devi Somanath
- Department of Microbiology, School of Medicine, International Medical University, Kuala Lumpur 57000, Malaysia
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Ye J, Li Y, Kong C, Ren Y, Lu H. Label-free proteomic analysis and functional analysis in patients with intrauterine adhesion. J Proteomics 2023; 277:104854. [PMID: 36841354 DOI: 10.1016/j.jprot.2023.104854] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/27/2023]
Abstract
Intrauterine adhesion (IUA) is one of the principal causes of secondary infertility in women of reproductive age, which seriously affects female reproductive function and quality of life. In recent years, the incidence of IUA has been increasing year by year, but its pathological mechanism has not yet been clarified. This study intended to reveal the pathogenesis of IUA and find new therapeutic targets by analyzing the proteomic differences between intrauterine adhesion tissues and normal human endometrial tissues. In the label-free quantitative proteomics, we identified 789 up-regulated differentially expressed proteins (DEPs) and 539 down-regulated DEPs. These DEPs were further analyzed by Gene Ontology (GO) annotation and enrichment analysis, Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis to preliminarily clarify the biomarkers involved in the pathogenesis of the IUA. The DEPs were further verified by parallel reaction monitoring (PRM) to confirm the results of proteomics. Finally, 7 target proteins may be candidates for treatment and elucidating the pathophysiology of IUA. SIGNIFICANCE: IUA is a fertility complication, which has increasing incidence recently. Until now, only a little research paid attention to the proteomic changes of IUA. This is the first study focused on the comparative analysis of endometrial tissue between IUA patients and normal women. We found 7 key proteins that may become the potential biomarkers of IUA.
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Affiliation(s)
- Jingxuan Ye
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, China
| | - Yong Li
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, China.
| | - Chengcai Kong
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, China
| | - Yiwen Ren
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, China
| | - Hangcheng Lu
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, China
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Yu Q, Dai Q, Huang Z, Li C, Yan L, Fu X, Wang Q, Zhang Y, Cai L, Yang Z, Xiao R. Microfat exerts an anti-fibrotic effect on human hypertrophic scar via fetuin-A/ETV4 axis. J Transl Med 2023; 21:231. [PMID: 37004048 PMCID: PMC10064544 DOI: 10.1186/s12967-023-04065-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/17/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Hypertrophic scar is a fibrotic disease following wound healing and is characterized by excessive extracellular matrix deposition. Autologous microfat grafting proves an effective strategy for the treatment thereof as it could improve the texture of scars and relieve relevant symptoms. This study aims to explore the potential mechanisms underlying the anti-fibrotic effect of microfat on hypertrophic scars. METHODS In this study, we injected microfat into transplanted hypertrophic scars in mouse models and investigated the subsequent histological changes and differential expression of mRNAs therein. As for in vitro studies, we co-cultured microfat and hypertrophic scar fibroblasts (HSFs) and analyzed molecular profile changes in HSFs co-cultured with microfat by RNA sequencing. Moreover, to identify the key transcription factors (TFs) which might be responsible for the anti-fibrotic function of microfat, we screened the differentially expressed TFs and transfected HSFs with lentivirus to overexpress or knockdown certain differentially expressed TFs. Furthermore, comparative secretome analyses were conducted to investigate the proteins secreted by co-cultured microfat; changes in gene expression of HSFs were examined after the administration of the potential anti-fibrotic protein. Finally, the relationship between the key TF in HSFs and the microfat-secreted anti-fibrotic adipokine was analyzed. RESULTS The anti-fibrotic effect of microfat was confirmed by in vivo transplanted hypertrophic scar models, as the number of α-SMA-positive myofibroblasts was decreased and the expression of fibrosis-related genes downregulated. Co-cultured microfat suppressed the extracellular matrix production of HSFs in in vitro experiment, and the transcription factor ETV4 was primarily differentially expressed in HSFs when compared with normal skin fibroblasts. Overexpression of ETV4 significantly decreased the expression of fibrosis-related genes in HSFs at both mRNA and protein levels. Fetuin-A secreted by microfat could also downregulate the expression of fibrosis-related genes in HSFs, partially through upregulating ETV4 expression. CONCLUSIONS Our results demonstrated that transcription factor ETV4 is essential for the anti-fibrotic effect of microfat on hypertrophic scars, and that fetuin-A secreted by microfat could suppress the fibrotic characteristic of HSFs through upregulating ETV4 expression. Microfat wields an alleviative influence over hypertrophic scars via fetuin-A/ETV4 axis.
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Affiliation(s)
- Qian Yu
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Qiang Dai
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Department of Burns and Plastic Surgery, Beijing Jishuitan Hospital, Beijing, People's Republic of China
| | - Zonglin Huang
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Chen Li
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Li Yan
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Xin Fu
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Qian Wang
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yi Zhang
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Lei Cai
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China.
| | - Zhigang Yang
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China.
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
| | - Ran Xiao
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Ba-Da-Chu Road, Beijing, 100144, People's Republic of China.
- Key Laboratory of External Tissue and Organ Regeneration, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
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Liu SY, Wu JJ, Chen ZH, Zou ML, Teng YY, Zhang KW, Li YY, Guo DY, Yuan FL, Li X. Insight into the role of dermal white adipose tissue loss in dermal fibrosis. J Cell Physiol 2021; 237:169-177. [PMID: 34608987 DOI: 10.1002/jcp.30552] [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: 03/28/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 12/16/2022]
Abstract
The loss of dermal white adipose tissue (dWAT) is vital to the formation of dermal fibrosis (DF), but the specific mechanism is not well understood. A few studies are reviewed to explore the role of dWAT in the formation of DF. Recent findings indicated that the adipocytes-to-myofibroblasts transition in dWAT reflects the direct contribution to the DF formation. While adipose-derived stem cells (ADSCs) contained in dWAT express antifibrotic cytokines, the loss of ADSCs leads to skin protection decreased, which indirectly exacerbates DF and tissue damage. Therefore, blocking or reversing the adipocytes-to-myofibroblasts transition or improving the survival of ADSCs in dWAT and the expression of antifibrotic cytokines may be an effective strategy for the treatment of DF.
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Affiliation(s)
- Si-Yu Liu
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China
| | - Jun-Jie Wu
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Zhong-Hua Chen
- Department of Medicine, Nantong University, Nantong, Jiangsu, China
| | - Ming-Li Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China
| | - Ying-Ying Teng
- Department of Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Kai-Wen Zhang
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China
| | - Yue-Yue Li
- Department of Pharmacy, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Dang-Yang Guo
- Department of Pharmacy, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Feng-Lai Yuan
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China.,Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China.,Department of Pharmacy, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
| | - Xia Li
- Department of Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
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Nangole FW, Ouyang K, Anzala O, Ogengo J, Agak GW. Multiple Cytokines Elevated in Patients with Keloids: Is It an Indication of Auto-Inflammatory Disease? J Inflamm Res 2021; 14:2465-2470. [PMID: 34140794 PMCID: PMC8203597 DOI: 10.2147/jir.s312091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/13/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Inflammation seems to play a major role in the pathophysiology of keloids. However, the role of cytokines in keloid pathophysiology has not been fully evaluated with only a few cytokines studied. We undertook this study to compare various cytokines in patients with keloids and a control group of patients without keloids nor family history of keloids so as to determine which cytokines are elevated and could thus be critical in keloid formation. METHODS This was a cross-sectional study of patients with keloids and a control group of those without. Patients in both groups were matched for age, sex and body mass index. Their plasma was analyzed for both inflammatory and anti-inflammatory cytokines using the Bio-flex ElisaTM method. Comparisons of cytokines means in both groups were done using Student's t-test. RESULTS A total of 84 participants with 42 participants in each group were followed during the study. Male to female ratio was 1:2. Age ranges were similar with a mean of 29.6 years. A total of 28 cytokines were assayed. Statistically significant differences were noted in 15 of the 28 cytokines assayed with 11 being elevated more in keloid patients with only four in the non-keloid forming group. Among elevated cytokines in keloid patients were granulocyte colony-stimulating factors, granulocyte-monocyte-colony-stimulating factors, interleukins 4, 6 and 13. CONCLUSION Patients with keloids have significantly higher cytokines compared with non-keloid forming patients. This finding suggests that keloid formation could be influenced by multiple inflammatory cytokines, an indication that the patient's immune system could play a role in keloid formation akin to auto-inflammatory disease.
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Affiliation(s)
| | - Kelsey Ouyang
- Division of Dermatology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Omu Anzala
- Institute of Aids Vaccine Initiative, University of Nairobi, Nairobi, Kenya
| | - Julius Ogengo
- Department of Human Anatomy, University of Nairobi, Nairobi, Kenya
| | - George W Agak
- Division of Dermatology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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