1
|
Wang XL, Xu SS, Zhou JB, Song ZH. An observational study on the safety of teprotumumab based on FAERS database. Endocrine 2024; 85:313-320. [PMID: 38760615 DOI: 10.1007/s12020-024-03852-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/23/2024] [Indexed: 05/19/2024]
Abstract
OBJECTIVE Teprotumumab plays an important role in thyroid eye disease pathogenesis and progression. We intend to mine the adverse event (AE) signals from a relevant database, thereby contributing to the safe use of teprotumumab. METHODS The data obtained from the ASCII data packages in the FAERS database from January 2020 to the second quarter of 2023 were imported into the SAS software (version 9.4) for data cleaning and analysis. Disproportionality analysis was performed using the reporting odds ratio (ROR) in conjunction with the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA) omnibus standard method to detect positive signals. PARTICIPANTS This retrospective observational study relied on adverse drug reactions reported to the FDA through FAERS, which is a standard public system for spontaneous reporting. RESULTS Collectively, 2171 AE reports for teprotumumab were collected, among which 108 significant signals were identified involving 17 system organ classes. The SOC of ear and labyrinth disorders included the most AE signals and reports. Muscle spasms, fatigue, headache, nausea, diarrhea, alopecia, blood glucose increased, hypoacusis, tinnitus, and diabetes mellitus were the top ten PTs ranked by the frequency of reporting, meanwhile, the two high-strength signals of thyroid-stimulating immunoglobulin increase (ROR 662.89, 95% CI 182.40-2409.19) and gingival recession (ROR 125.13, 95% CI 79.70-196.45) were not documented in the drug instruction. Meanwhile, we found a higher risk of increased blood glucose, deafness, and decreased appetite for male patients, and headache for female patients. CONCLUSIONS Clinical application of teprotumumab should be closely monitored for ototoxicity, nail abnormalities, and menstrual changes, as well as for AEs not mentioned in the drug instruction, including gingival recession, thyroid-stimulating immunoglobulin increase, and so on.
Collapse
Affiliation(s)
- Xing-Long Wang
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Shan-Shan Xu
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Jian-Bo Zhou
- Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
| | - Zhi-Hui Song
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
2
|
Ahmadi S, Pachis ST, Kalogeropoulos K, McGeoghan F, Canbay V, Hall SR, Crittenden EP, Dawson CA, Bartlett KE, Gutiérrez JM, Casewell NR, Keller UAD, Laustsen AH. Proteomics and histological assessment of an organotypic model of human skin following exposure to Naja nigricollis venom. Toxicon 2022; 220:106955. [DOI: 10.1016/j.toxicon.2022.106955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/03/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
|
3
|
Abstract
The skin forms a crucial, dynamic barrier between an animal and the external world. In mammals, three stem cell populations possess robust regenerative potential to maintain and repair the body's protective surface: epidermal stem cells, which maintain the stratified epidermis; hair follicle stem cells, which power the cyclic growth of the hair follicle; and melanocyte stem cells, which regenerate pigment-producing melanocytes to color the skin and hair. These stem cells reside in complex microenvironments ("niches") comprising diverse cellular repertoires that enable stem cells to rejuvenate tissues during homeostasis and regenerate them upon injury. Beyond their niches, skin stem cells can also sense and respond to fluctuations in organismal health or changes outside the body. Here, we review these diverse cellular interactions and highlight how far-reaching signals can be transmitted at the local level to enable skin stem cells to tailor their actions to suit the particular occasion and optimize fitness.
Collapse
Affiliation(s)
- Ya-Chieh Hsu
- Department of Stem Cell and Regenerative Biology, Harvard University and Harvard Stem Cell Institute, Cambridge, Massachusetts 02138, USA
| | - Elaine Fuchs
- Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, Howard Hughes Medical Institute, The Rockefeller University, New York, New York 10065, USA
| |
Collapse
|
4
|
Datta D, Madke B, Das A. Skin as an endocrine organ: A narrative review. Indian J Dermatol Venereol Leprol 2022; 88:590-597. [PMID: 35389023 DOI: 10.25259/ijdvl_533_2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 11/01/2021] [Indexed: 12/21/2022]
Abstract
Skin being the largest organ of the body, is equipped with numerous functional properties. Over the past few years, intricate research into the biology of skin has led to a gamut of discoveries. Skin is now regarded as one of the most vital endocrine organs. The skin contains equivalents of the hypothalamo-pituitary-adrenal axis, hypothalamo-pituitary-thyroid axis and the appendages produce multiple hormones such as Vitamin D, sex steroids, retinoids and opioids. In this article, we will explore the role of skin as a target and source of some of the hormones of the human body, and briefly touch on the clinical applications.
Collapse
Affiliation(s)
- Debatri Datta
- Oliva Skin and Hair Clinic, Kolkata, West Bengal, India
| | - Bhushan Madke
- Department of Dermatology, Jawaharlal Nehru Medical College and AVBR Hospital, Wardha, Maharashtra, India
| | - Anupam Das
- Department of Dermatology, KPC Medical College and Hospital, Kolkata, West Bengal, India
| |
Collapse
|
5
|
IGF-I and Hyaluronic Acid Mitigate the Negative Effect of Irradiation on Human Skin Keratinocytes. Cancers (Basel) 2022; 14:cancers14030588. [PMID: 35158856 PMCID: PMC8833477 DOI: 10.3390/cancers14030588] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 01/27/2023] Open
Abstract
Simple Summary Patients undergoing radiation therapy for the treatment of various types of cancer often experience side effects such as radiation dermatitis. A gold standard treatment is still lacking. The objective of the present study was to find novel therapeutic strategies for the regeneration and repair of damaged skin areas after irradiation. An in vitro 2D and 3D primary keratinocyte model was used to test the effect of insulin-like growth factor I (IGF-I), keratinocyte growth factor (KGF), platelet lysate (PL), hyaluronic acid (HA), and adipose-derived stem cell (ADSC) conditioned medium on the functional abilities (viability, migration) and the gene expression of irradiated keratinocytes. Hyaluronic acid and IGF-I effectively reduced the irradiation damage of primary keratinocytes by stimulating viability and migration and reducing cell apoptosis and necrosis. These findings indicate that the negative effects of irradiation on keratinocytes located in the patient’s skin can be counterbalanced with HA and IGF-I treatment. Abstract Ionizing radiation has become an integral part of modern cancer therapy regimens. Various side effects, such as radiation dermatitis, affect patients in acute and chronic forms and decrease therapy compliance significantly. In this study, primary keratinocytes were irradiated in a 2-dimensional (2D) culture as well as on a 3-dimensional (3D) collagen-elastin matrix with doses of 2 and 5 Gy. The effect of different concentrations of IGF-I, KGF, platelet lysate (PL), high and low molecular weight hyaluronic acid (H-HA, L-HA), and adipose-derived stem cell (ADSC) conditioned medium was analyzed in respect to cell viability (WST-8), wound closure (migration), and the gene expression (quantitative real-time PCR) of 2D cultures. The 3D culture was evaluated by WST-8. A mixture of H-HA and L-HA, as well as IGF-I, could significantly stimulate the keratinocyte viability and migration which were severely reduced by irradiation. The MKI67and IL6 gene expression of irradiated keratinocytes was significantly higher after H-HA/L-HA treatment. The stimulating effects of H-HA/L-HA and IGF-I were able to be confirmed in 3D culture. A positive influence on cell viability, migration, and gene expression was achieved after the treatment with H-L-HA and IGF-I. These results open the possibility of a novel therapeutic method for both the prevention and the treatment of radiation dermatitis.
Collapse
|
6
|
Cutaneous innervation in impaired diabetic wound healing. Transl Res 2021; 236:87-108. [PMID: 34029747 PMCID: PMC8380642 DOI: 10.1016/j.trsl.2021.05.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/09/2021] [Accepted: 05/11/2021] [Indexed: 12/11/2022]
Abstract
Type 2 diabetes is associated with several potential comorbidities, among them impaired wound healing, chronic ulcerations, and the requirement for lower extremity amputation. Disease-associated abnormal cellular responses, infection, immunological and microvascular dysfunction, and peripheral neuropathy are implicated in the pathogenesis of the wound healing impairment and the diabetic foot ulcer. The skin houses a dense network of sensory nerve afferents and nerve-derived modulators, which communicate with epidermal keratinocytes and dermal fibroblasts bidirectionally to effect normal wound healing after trauma. However, the mechanisms through which cutaneous innervation modulates wound healing are poorly understood, especially in humans. Better understanding of these mechanisms may provide the basis for targeted treatments for chronic diabetic wounds. This review provides an overview of wound healing pathophysiology with a focus on neural involvement in normal and diabetic wound healing, as well as future therapeutic perspectives to address the unmet needs of diabetic patients with chronic wounds.
Collapse
|
7
|
An Insulin-like Growth Factor-1 Conjugated Bombyx mori Silk Fibroin Film for Diabetic Wound Healing: Fabrication, Physicochemical Property Characterization, and Dosage Optimization In Vitro and In Vivo. Pharmaceutics 2021; 13:pharmaceutics13091459. [PMID: 34575535 PMCID: PMC8468198 DOI: 10.3390/pharmaceutics13091459] [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: 07/21/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 11/19/2022] Open
Abstract
This study aimed to develop a silk fibroin (SF)-film for the treatment of chronic diabetic wounds. Silk fibroin was purified through a newly developed heating degumming (HD) process and casted on a hydrophobic surface to form SF-films. The process allowed the fabricated film to achieve a 42% increase in transparency and a 32% higher proliferation rate for BALB/3T3 fibroblasts compared to that obtained by conventional alkaline degumming treatment. Fourier transform infrared analysis demonstrated that secondary structure was retained in both HD- and alkaline degumming-derived SF preparations, although the crystallinity of beta-sheet in SF-film after the HD processing was slightly increased. This study also investigated whether conjugating insulin-like growth factor-1 (IGF-1) would promote diabetic wound healing and what the optimal dosage is. Using BALB/3T3 cells grown in hyperglycemic medium as a model, it was demonstrated that the optimal IGF-1 dosage to promote the cell growth was approximately 0.65 pmol. Further analysis of wound healing in a diabetic mouse model indicated that SF-film loaded with 3.25 pmol of IGF-1 showed significantly superior wound closure, a 13% increase at the 13th day after treatment relative to treatment with 65 pmol of free IGF-1. Improvement in diabetic wound healing was exerted synergistically by SF-film and IGF-1, as reflected by parameters including levels of re-epithelialization, epithelial tissue area, and angiogenesis. Finally, IGF-1 increased the epithelial tissue area and micro-vessel formation in a dose-dependent manner in a low dosage range (3.25 pmol) when loaded to SF-films. Together, these results strongly suggest that SF-film produced using HD and loaded with a low dosage of IGF-1 is a promising dressing for diabetic wound therapy.
Collapse
|
8
|
Chen C, Meng Z, Ren H, Zhao N, Shang R, He W, Hao J. The molecular mechanisms supporting the homeostasis and activation of dendritic epidermal T cell and its role in promoting wound healing. BURNS & TRAUMA 2021; 9:tkab009. [PMID: 34212060 PMCID: PMC8240510 DOI: 10.1093/burnst/tkab009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/08/2021] [Indexed: 11/13/2022]
Abstract
The epidermis is the outermost layer of skin and the first barrier against invasion. Dendritic epidermal T cells (DETCs) are a subset of γδ T cells and an important component of the epidermal immune microenvironment. DETCs are involved in skin wound healing, malignancy and autoimmune diseases. DETCs secrete insulin-like growth factor-1 and keratinocyte growth factor for skin homeostasis and re-epithelization and release inflammatory factors to adjust the inflammatory microenvironment of wound healing. Therefore, an understanding of their development, activation and correlative signalling pathways is indispensable for the regulation of DETCs to accelerate wound healing. Our review focuses on the above-mentioned molecular mechanisms to provide a general research framework to regulate and control the function of DETCs.
Collapse
Affiliation(s)
- Cheng Chen
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Ziyu Meng
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
| | - He Ren
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Na Zhao
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Jianlei Hao
- Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, Guangdong, China.,The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, 510632, Guangdong, China
| |
Collapse
|
9
|
Andrade MJ, Van Lonkhuyzen DR, Upton Z, Satyamoorthy K. RPA facilitates rescue of keratinocytes from UVB radiation damage through insulin-like growth factor-I signalling. J Cell Sci 2021; 134:jcs255786. [PMID: 34137442 DOI: 10.1242/jcs.255786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 05/10/2021] [Indexed: 01/19/2023] Open
Abstract
UVBR-induced photolesions in genomic DNA of keratinocytes impair cellular functions and potentially determine the cell fate post-irradiation. The ability of insulin-like growth factor-I (IGF-I) to rescue epidermal keratinocytes after photodamage via apoptosis prevention and photolesion removal was recently demonstrated using in vitro two-dimensional and three-dimensional skin models. Given the limited knowledge of specific signalling cascades contributing to post-UVBR IGF-I effects, we used inhibitors to investigate the impact of blockade of various signalling mediators on IGF-I photoprotection. IGF-I treatment, in the presence of signalling inhibitors, particularly TDRL-505, which targets replication protein A (RPA), impaired activation of IGF-1R downstream signalling, diminished cyclobutane pyrimidine dimer removal, arrested growth, reduced cell survival and increased apoptosis. Further, the transient partial knockdown of RPA was found to abrogate IGF-I-mediated responses in keratinocytes, ultimately affecting photoprotection and, thereby, establishing that RPA is required for IGF-I function. Our findings thus elucidate the importance of RPA in linking the damage response activation, cell cycle regulation, repair and survival pathways, separately initiated by IGF-I upon UVBR-induced damage. This information is potentially imperative for the development of effective sunburn and photodamage repair strategies. This article has an associated First Person interview with the first author of the paper.
Collapse
Affiliation(s)
- Melisa J Andrade
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
- Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4059, Australia
| | - Derek R Van Lonkhuyzen
- Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4059, Australia
| | - Zee Upton
- Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4059, Australia
- Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore138648
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| |
Collapse
|
10
|
McGinn J, Hallou A, Han S, Krizic K, Ulyanchenko S, Iglesias-Bartolome R, England FJ, Verstreken C, Chalut KJ, Jensen KB, Simons BD, Alcolea MP. A biomechanical switch regulates the transition towards homeostasis in oesophageal epithelium. Nat Cell Biol 2021; 23:511-525. [PMID: 33972733 PMCID: PMC7611004 DOI: 10.1038/s41556-021-00679-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/01/2021] [Indexed: 02/07/2023]
Abstract
Epithelial cells rapidly adapt their behaviour in response to increasing tissue demands. However, the processes that finely control these cell decisions remain largely unknown. The postnatal period covering the transition between early tissue expansion and the establishment of adult homeostasis provides a convenient model with which to explore this question. Here, we demonstrate that the onset of homeostasis in the epithelium of the mouse oesophagus is guided by the progressive build-up of mechanical strain at the organ level. Single-cell RNA sequencing and whole-organ stretching experiments revealed that the mechanical stress experienced by the growing oesophagus triggers the emergence of a bright Krüppel-like factor 4 (KLF4) committed basal population, which balances cell proliferation and marks the transition towards homeostasis in a yes-associated protein (YAP)-dependent manner. Our results point to a simple mechanism whereby mechanical changes experienced at the whole-tissue level are integrated with those sensed at the cellular level to control epithelial cell fate.
Collapse
Affiliation(s)
- Jamie McGinn
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Department of Oncology, University of Cambridge and Cancer Research UK Cambridge Centre, Cambridge, UK
| | - Adrien Hallou
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | - Seungmin Han
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK
| | - Kata Krizic
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Stem Cell Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Svetlana Ulyanchenko
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Stem Cell Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ramiro Iglesias-Bartolome
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Frances J England
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | | | - Kevin J Chalut
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Kim B Jensen
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Stem Cell Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Benjamin D Simons
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK
- Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Cambridge, UK
| | - Maria P Alcolea
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.
- Department of Oncology, University of Cambridge and Cancer Research UK Cambridge Centre, Cambridge, UK.
| |
Collapse
|
11
|
Shen CB, Qian X, Yu RX, Ji XL, Shi YJ, Gao J, Li CX, Li KK, Fei WM, Shen X, Wang ZY, Han Y, Ning XL, Ko R, Hsu YH, Yin XY, Li GW, Cui Y. Skin diseases in the Da Qing Diabetes Study: a cross-sectional study. Chin Med J (Engl) 2021; 134:1191-1198. [PMID: 34018997 PMCID: PMC8143734 DOI: 10.1097/cm9.0000000000001453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND The prevalence of skin diseases and diabetes mellitus (DM) are prominent around the world. The current scope of knowledge regarding the prevalence of skin diseases and comorbidities with type 2 DM (T2DM) is limited, leading to limited recognition of the correlations between skin diseases and T2DM. METHODS We collected 383 subjects from the Da Qing Diabetes Study during the period from July 9th to September 1st, 2016. The subjects were categorized into three groups: Normal glucose tolerance (NGT), impaired glucose tolerance (IGT), and T2DM. The prevalence and clinical characteristics of skin diseases were recorded and investigated. RESULTS In this cross-sectional study, 383 individuals with ages ranging from 53 to 89-year-old were recruited. The overall prevalence of skin diseases was 93.5%, and 75.7% of individuals had two or more kinds of skin diseases. Additionally, there were 47 kinds of comorbid skin diseases in patients with T2DM, of which eight kinds of skin diseases had a prevalence >10%. The prevalence of skin diseases in NGT, IGT, and T2DM groups were 93.3%, 91.5%, and 96.6%, respectively; stratified analysis by categories showed a statistically significant difference in "disturbances of pigmentation" and "neurological and psychogenic dermatoses". The duration of T2DM also significantly associated with the prevalence of "disturbances of pigmentation" and "neurological and psychogenic dermatoses". Subsequently, the prevalence of "disturbances of pigmentation" was higher in males than females in NGT (P < 0.01) and T2DM (P < 0.01) groups. In addition, the difference in the prevalence of "disturbances of pigmentation" was also significant in NGT and T2DM groups (P < 0.01). CONCLUSIONS There was a high prevalence of skin diseases in the Da Qing Diabetes Study. To address the skin diseases in the Da Qing Diabetes Study, increased awareness and intervention measures should be implemented.
Collapse
Affiliation(s)
- Chang-Bing Shen
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen Peking University – The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong 518036, China
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife and Harvard Medical School, Boston, MA 02131, USA
| | - Xin Qian
- Center of Endocrinology and Cardiology, Fu Wai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Rui-Xing Yu
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xue-Lei Ji
- Department of Endocrinology and Metabolism, Second People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Yin-Juan Shi
- Department of Dermatology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Jing Gao
- Department of Dermatology, Second Affiliated Hospital, Anhui Medical University, Hefei, Anhui 230601, China
| | - Cheng-Xu Li
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ke-Ke Li
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Wen-Min Fei
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xue Shen
- Department of Dermatology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China
| | - Zi-Yi Wang
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yang Han
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiao-Li Ning
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Randy Ko
- The University of New Mexico School of Medicine, Albuquerque, NM 87131, USA
| | - Yi-Hsiang Hsu
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife and Harvard Medical School, Boston, MA 02131, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Xian-Yong Yin
- Department of Biostatistics, Center for Statistical Genetics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Guang-Wei Li
- Center of Endocrinology and Cardiology, Fu Wai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Yong Cui
- Department of Dermatology, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Skin Health, China-Japan Friendship Hospital, Beijing 100029, China
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| |
Collapse
|
12
|
Abhinav RP, Williams J, Livingston P, Anjana RM, Mohan V. Burden of diabetes and oral cancer in India. J Diabetes Complications 2020; 34:107670. [PMID: 32651032 DOI: 10.1016/j.jdiacomp.2020.107670] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 06/26/2020] [Indexed: 02/07/2023]
Abstract
Oral cancer and diabetes are highly prevalent among the Indian population and are part of the top four non-communicable diseases responsible for mortality and morbidity. Their numbers are so great that they pose a unique burden to the socioeconomic growth of the country. In recent years, there has been an increase in the number of studies examining the role of diabetes in oral cancer reporting co-existence of diabetes and cancer. There is also growing evidence of a higher risk for developing a number of cancers among individuals with diabetes, including pancreatic, liver, gynecologic, colorectal, oral and breast cancer, and consequently 'diabetic oncopathy' is emerging as one of the complications of diabetes. Diabetes may lead to the development of cancer through oxidative damage leading to accumulation of DNA mutations and/or through immune dysfunction, which predisposes to viral infection. Cancer and diabetes may co-occur due to shared risk factors such as increased insulin-like growth factor-1 and obesity, but there is no clear biologic link between the two disorders. This literature review aims to review the evidence showing the current burden of two non-communicable diseases, diabetes and oral cancer and their potential association, with particular reference to India.
Collapse
Affiliation(s)
- Rajendra Prabhu Abhinav
- School of Health and Social Development, Deakin University, Geelong, Victoria, Australia; Madras Diabetes Research Foundation, Chennai, India
| | - Joanne Williams
- School of Health and Social Development, Deakin University, Geelong, Victoria, Australia
| | - Patricia Livingston
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
| | - Ranjit Mohan Anjana
- Madras Diabetes Research Foundation & Dr. Mohan's Diabetes Specialities Centre, Chennai, India
| | - Viswanathan Mohan
- Madras Diabetes Research Foundation & Dr. Mohan's Diabetes Specialities Centre, Chennai, India.
| |
Collapse
|
13
|
Abianeh SH, Bajestani SM, Rahmati J, Shahrbaf MA, Shirzad N. The effect of local insulin injection on the healing process of split thickness skin graft donor site: a randomized, double-blind, placebo control clinical trial. EUROPEAN JOURNAL OF PLASTIC SURGERY 2020. [DOI: 10.1007/s00238-020-01683-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
14
|
Intracellular Insulin-like growth factor binding protein 2 (IGFBP2) contributes to the senescence of keratinocytes in psoriasis by stabilizing cytoplasmic p21. Aging (Albany NY) 2020; 12:6823-6851. [PMID: 32302288 PMCID: PMC7202509 DOI: 10.18632/aging.103045] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022]
Abstract
Psoriasis is a chronic Th1/Th17 lymphocytes-mediated inflammatory skin disease, in which epidermal keratinocytes exhibit a peculiar senescent state, resistance to apoptosis and the acquisition of senescence-associated secretory phenotype (SASP). SASP consists of the release of soluble factors, including IGFBPs, that exert extracellular and intracellular functions in IGF-dependent or independent manner.In this report, we investigated the expression and function of IGFBP2 in senescent keratinocytes isolated from the skin of patients with plaque psoriasis. We found that IGFBP2 is aberrantly expressed and released by these cells in vivo, as well as in vitro in keratinocyte cultures undergoing progressive senescence, and it associates with the cyclin-dependent kinase inhibitors p21 and p16 expression. For the first time, we provide evidence for a dual action of IGFBP2 in psoriatic keratinocytes during growth and senescence processes. While extracellular IGFBP2 counter-regulates IGF-induced keratinocyte hyper-proliferation, intracellular IGFBP2 inhibits apoptosis by interacting with p21 and protecting it from ubiquitin-dependent degradation. Indeed, we found that cytoplasmic p21 sustains anti-apoptotic processes, by inhibiting pro-caspase 3 cleavage and JNK phosphorylation in senescent psoriatic keratinocytes. As a consequence, abrogation of p21, as well as that of IGFBP2, found to stabilize cytoplasmic p21 levels, lead to the restoration of apoptosis mechanisms in psoriatic keratinocytes, commonly observed in healthy cells.
Collapse
|
15
|
Dam DHM, Jelsma SA, Yu JM, Liu H, Kong B, Paller AS. Flotillin and AP2A1/2 Promote IGF-1 Receptor Association with Clathrin and Internalization in Primary Human Keratinocytes. J Invest Dermatol 2020; 140:1743-1752.e4. [PMID: 32027876 DOI: 10.1016/j.jid.2020.01.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 01/13/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022]
Abstract
IGF-1 receptor (IGF1R) signaling promotes keratinocyte proliferation, migration, and survival. However, the mechanism of IGF1R endocytosis in normal keratinocytes remains unclear. Confocal, super resolution structured illumination microscopy, total internal reflection fluorescence microscopy, and coimmunoprecipitation studies reveal that IGF1R associates with flotillin-1 (Flot-1), which currently has no known role in normal receptor tyrosine kinase endocytosis, under basal conditions in monolayer keratinocyte cultures. Ligand stimulation of IGF1R promotes its clathrin-dependent endocytosis, mediated by two distinct adaptors, Flot-1 in noncaveolar lipid rafts and the AP2A1/2 complex in clathrin vesicles. Concurrent, but not individual, short hairpin RNA knockdown of FLOT1/2 and AP2A1/2 reduced IGF1R association with clathrin, internalization, and pathway activation by more than 50% (of phosphorylated IGF1R, phosphorylated protein kinase B, and phosphorylated MAPK kinase), suggesting the complementarity of these two adaptor-specific pathways. The Flot-1 pathway is more responsive to low IGF-1 concentrations, whereas the AP2A1/2 pathway predominates at higher IGF-1 concentrations. Selective association of IGF1R-Flot-1-clathrin with Rab4, but IGF1R-AP2A1/2-clathrin with Rab11, implicates Flot-1 as the adaptor for faster recycling and AP2A1/2 as the adaptor for slower IGF1R recycling. These dual pathways, particularly flotillin-dependent, clathrin-mediated endocytosis, provide a new avenue for drug targeting in disorders with aberrant regulation of IGF1R signaling.
Collapse
Affiliation(s)
- Duncan Hieu M Dam
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sophia A Jelsma
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jeong Min Yu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Haoming Liu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Betty Kong
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
| |
Collapse
|
16
|
Tan GK, Pryce BA, Stabio A, Brigande JV, Wang C, Xia Z, Tufa SF, Keene DR, Schweitzer R. Tgfβ signaling is critical for maintenance of the tendon cell fate. eLife 2020; 9:52695. [PMID: 31961320 PMCID: PMC7025861 DOI: 10.7554/elife.52695] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 01/17/2020] [Indexed: 12/12/2022] Open
Abstract
Studies of cell fate focus on specification, but little is known about maintenance of the differentiated state. In this study, we find that the mouse tendon cell fate requires continuous maintenance in vivo and identify an essential role for TGFβ signaling in maintenance of the tendon cell fate. To examine the role of TGFβ signaling in tenocyte function the TGFβ type II receptor (Tgfbr2) was targeted in the Scleraxis-expressing cell lineage using the ScxCre deletor. Tendon development was not disrupted in mutant embryos, but shortly after birth tenocytes lost differentiation markers and reverted to a more stem/progenitor state. Viral reintroduction of Tgfbr2 to mutants prevented and even rescued tenocyte dedifferentiation suggesting a continuous and cell autonomous role for TGFβ signaling in cell fate maintenance. These results uncover the critical importance of molecular pathways that maintain the differentiated cell fate and a key role for TGFβ signaling in these processes.
Collapse
Affiliation(s)
- Guak-Kim Tan
- Research Division, Shriners Hospital for Children, Portland, United States
| | - Brian A Pryce
- Research Division, Shriners Hospital for Children, Portland, United States
| | - Anna Stabio
- Research Division, Shriners Hospital for Children, Portland, United States
| | - John V Brigande
- Oregon Hearing Research Center, Oregon Health & Science University, Portland, United States
| | - ChaoJie Wang
- Computational Biology Program, Oregon Health & Science University, Portland, United States
| | - Zheng Xia
- Computational Biology Program, Oregon Health & Science University, Portland, United States
| | - Sara F Tufa
- Research Division, Shriners Hospital for Children, Portland, United States
| | - Douglas R Keene
- Research Division, Shriners Hospital for Children, Portland, United States
| | - Ronen Schweitzer
- Research Division, Shriners Hospital for Children, Portland, United States.,Department of Orthopedics, Oregon Health & Science University, Portland, United States
| |
Collapse
|
17
|
Andrade MJ, Van Lonkhuyzen DR, Upton Z, Satyamoorthy K. Unravelling the insulin-like growth factor I-mediated photoprotection of the skin. Cytokine Growth Factor Rev 2019; 52:45-55. [PMID: 31767341 DOI: 10.1016/j.cytogfr.2019.11.004] [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: 10/17/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
Abstract
Chronic exposure of human skin to solar ultraviolet radiation (UVR) induces a range of biological reactions which may directly or indirectly lead to the development of skin cancer. In order to overcome these damaging effects of UVR and to reduce photodamage, the skin's endogenous defence system functions in concert with the various exogenous photoprotectors. Growth factors, particularly insulin-like growth factor-I (IGF-I), produced within the body as a result of cellular interaction in response to UVR demonstrates photoprotective properties in human skin. This review summarises the impact of UVR-induced photolesions on human skin, discusses various endogenous as well as exogenous approaches of photoprotection described to date and explains how IGF-I mediates UVR photoprotective responses at the cellular and mitochondrial level. Further, we describe the current interventions using growth factors and propose how the knowledge of the IGF-I photoprotection signalling cascades may direct the development of improved UVR protection and remedial strategies.
Collapse
Affiliation(s)
- Melisa J Andrade
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Derek R Van Lonkhuyzen
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Zee Upton
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia; Institute of Medical Biology, A⁎STAR, Singapore
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India.
| |
Collapse
|
18
|
Landi A, Mari M, Kleiser S, Wolf T, Gretzmeier C, Wilhelm I, Kiritsi D, Thünauer R, Geiger R, Nyström A, Reggiori F, Claudinon J, Römer W. Pseudomonas aeruginosa lectin LecB impairs keratinocyte fitness by abrogating growth factor signalling. Life Sci Alliance 2019; 2:2/6/e201900422. [PMID: 31732693 PMCID: PMC6858607 DOI: 10.26508/lsa.201900422] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022] Open
Abstract
Lectins are glycan-binding proteins with no catalytic activity and ubiquitously expressed in nature. Numerous bacteria use lectins to efficiently bind to epithelia, thus facilitating tissue colonisation. Wounded skin is one of the preferred niches for Pseudomonas aeruginosa, which has developed diverse strategies to impair tissue repair processes and promote infection. Here, we analyse the effect of the P. aeruginosa fucose-binding lectin LecB on human keratinocytes and demonstrate that it triggers events in the host, upon binding to fucosylated residues on cell membrane receptors, which extend beyond its role as an adhesion molecule. We found that LecB associates with insulin-like growth factor-1 receptor and dampens its signalling, leading to the arrest of cell cycle. In addition, we describe a novel LecB-triggered mechanism to down-regulate host cell receptors by showing that LecB leads to insulin-like growth factor-1 receptor internalisation and subsequent missorting towards intracellular endosomal compartments, without receptor activation. Overall, these data highlight that LecB is a multitask virulence factor that, through subversion of several host pathways, has a profound impact on keratinocyte proliferation and survival.
Collapse
Affiliation(s)
- Alessia Landi
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Muriel Mari
- Department of Biomedical Sciences of Cells & Systems, University of Groningen, University Medical Centre Groningen, Groningen, Netherlands
| | - Svenja Kleiser
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Department of Dermatology, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Tobias Wolf
- Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Christine Gretzmeier
- Department of Dermatology, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Isabel Wilhelm
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Dimitra Kiritsi
- Department of Dermatology, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Roland Thünauer
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Roger Geiger
- Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Alexander Nyström
- Department of Dermatology, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Fulvio Reggiori
- Department of Biomedical Sciences of Cells & Systems, University of Groningen, University Medical Centre Groningen, Groningen, Netherlands
| | - Julie Claudinon
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Winfried Römer
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg, Germany .,Signalling Research Centres, Centre for Biological Signalling Studies and Centre for Integrative Biological Signalling Studies , Albert-Ludwigs-University Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
19
|
Borreguero-Muñoz N, Fletcher GC, Aguilar-Aragon M, Elbediwy A, Vincent-Mistiaen ZI, Thompson BJ. The Hippo pathway integrates PI3K-Akt signals with mechanical and polarity cues to control tissue growth. PLoS Biol 2019; 17:e3000509. [PMID: 31613895 PMCID: PMC6814241 DOI: 10.1371/journal.pbio.3000509] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 10/25/2019] [Accepted: 10/03/2019] [Indexed: 11/19/2022] Open
Abstract
The Hippo signalling pathway restricts cell proliferation in animal tissues by inhibiting Yes-associated protein (YAP or YAP1) and Transcriptional Activator with a PDZ domain (TAZ or WW-domain-containing transcriptional activator [WWTR1]), coactivators of the Scalloped (Sd or TEAD) DNA-binding transcription factor. Drosophila has a single YAP/TAZ homolog named Yorkie (Yki) that is regulated by Hippo pathway signalling in response to epithelial polarity and tissue mechanics during development. Here, we show that Yki translocates to the nucleus to drive Sd-mediated cell proliferation in the ovarian follicle cell epithelium in response to mechanical stretching caused by the growth of the germline. Importantly, mechanically induced Yki nuclear localisation also requires nutritionally induced insulin/insulin-like growth factor 1 (IGF-1) signalling (IIS) via phosphatidyl inositol-3-kinase (PI3K), phosphoinositide-dependent kinase 1 (PDK1 or PDPK1), and protein kinase B (Akt or PKB) in the follicular epithelium. We find similar results in the developing Drosophila wing, where Yki becomes nuclear in the mechanically stretched cells of the wing pouch during larval feeding, which induces IIS, but translocates to the cytoplasm upon cessation of feeding in the third instar stage. Inactivating Akt prevents nuclear Yki localisation in the wing disc, while ectopic activation of the insulin receptor, PI3K, or Akt/PKB is sufficient to maintain nuclear Yki in mechanically stimulated cells of the wing pouch even after feeding ceases. Finally, IIS also promotes YAP nuclear localisation in response to mechanical cues in mammalian skin epithelia. Thus, the Hippo pathway has a physiological function as an integrator of epithelial cell polarity, tissue mechanics, and nutritional cues to control cell proliferation and tissue growth in both Drosophila and mammals.
Collapse
Affiliation(s)
| | - Georgina C. Fletcher
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Mario Aguilar-Aragon
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Ahmed Elbediwy
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | | | - Barry J. Thompson
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
- EMBL Australia, Department of Cancer Biology & Therapeutics, The John Curtin School of Medical Research, The Australian National University, Acton, Australia
- * E-mail:
| |
Collapse
|
20
|
Martin A, Venara M, Mathó C, Olea FD, Fernández MC, Pennisi PA. Fibroblast deficiency of insulin-like growth factor 1 receptor type 1 (IGF1R) impairs initial steps of murine pheochromocytoma development. Biochimie 2019; 163:108-116. [PMID: 31185266 DOI: 10.1016/j.biochi.2019.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 06/05/2019] [Indexed: 01/26/2023]
Abstract
Insulin-like growth factor 1 (IGF1) has a critical role in maintaining tumor phenotype and survival of already transformed murine pheochromocytoma (pheo) cells (MPC4/30) and it is required for the initial establishment of these tumors. However, the role of local IGF1/IGF1R system in tumor microenvironment has not been fully understood. In vivo, by subcutaneous injection of pheo cells in heterozygous IGF1R knockout mice (L/n), we found that the time of noticeable tumor appearance was delayed, and incidence was decreased in L/n group compared to control (L/L) mice. Once established, tumor proliferation, vascularization or growth rate did not differ between groups. In vitro, fibroblast from L/n and L/L mice were cultured to generate conditioned media (CM) and differential matrixes on which pheo cells were seeded. Proliferation rate was higher when pheo cells were cultured with CM, or in differential matrix generated by L/L murine fibroblasts. A diminished fibronectin (FN) expression and secretion from L/n fibroblast was associated with decreased expression of integrin subunits in tumor cells. Also, soluble factors as IGF1 and insulin-like growth factor binding protein 2 (IGFBP2) were reduced. Our data suggest that IGF1 signaling through IGF1R may contribute to tumor cells anchorage and survival by interaction with both matrix and soluble factors produced by tumor microenvironment fibroblasts.
Collapse
Affiliation(s)
- Ayelen Martin
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Marcela Venara
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Cecilia Mathó
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Fernanda D Olea
- Instituto de Medicina Traslacional, Transplante y Bioingeniería IMETTYB- CONICET- Universidad Favaloro, Solis 453, Ciudad Autónoma de Buenos Aires, C1078AAH, Argentina
| | - María Celia Fernández
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Patricia A Pennisi
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina.
| |
Collapse
|
21
|
Advanced drug delivery systems and artificial skin grafts for skin wound healing. Adv Drug Deliv Rev 2019; 146:209-239. [PMID: 30605737 DOI: 10.1016/j.addr.2018.12.014] [Citation(s) in RCA: 303] [Impact Index Per Article: 60.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/27/2018] [Accepted: 12/27/2018] [Indexed: 12/14/2022]
Abstract
Cutaneous injuries, especially chronic wounds, burns, and skin wound infection, require painstakingly long-term treatment with an immense financial burden to healthcare systems worldwide. However, clinical management of chronic wounds remains unsatisfactory in many cases. Various strategies including growth factor and gene delivery as well as cell therapy have been used to enhance the healing of non-healing wounds. Drug delivery systems across the nano, micro, and macroscales can extend half-life, improve bioavailability, optimize pharmacokinetics, and decrease dosing frequency of drugs and genes. Replacement of the damaged skin tissue with substitutes comprising cell-laden scaffold can also restore the barrier and regulatory functions of skin at the wound site. This review covers comprehensively the advanced treatment strategies to improve the quality of wound healing.
Collapse
|
22
|
Muraguchi T, Nanba D, Nishimura EK, Tashiro T. IGF-1R deficiency in human keratinocytes disrupts epidermal homeostasis and stem cell maintenance. J Dermatol Sci 2019; 94:298-305. [PMID: 31122679 DOI: 10.1016/j.jdermsci.2019.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/20/2019] [Accepted: 05/08/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Epidermal stem cells (ESCs) are keratinocytes that reside in the basal layer of the epidermis and mediate epidermal homeostasis. Insulin-like growth factor 1 (IGF-1) signaling through its receptor (IGF-1R) has been identified as an important regulator in rodent skin development and differentiation. However, the role of IGF-1/IGF-1R signaling in human keratinocytes is not yet well understood. OBJECTIVE This study aimed to clarify the role of IGF-1/IGF-1R signaling in human epidermal homeostasis. METHODS IGF-1R specific knockout (KO) HaCaT keratinocytes were generated by CRISPR-Caspase-9-mediated non-homologous end joining frame-shift mutations. Further, the behavior of these keratinocytes in epidermal homeostasis was investigated using reconstructed epidermis and human skin equivalents. RESULTS IGF-1R KO HaCaT keratinocytes were successfully established and produced thin epidermis in three-dimensional culture models. Keratin10-positive cells were frequently found in the basal layer of the reconstructed epidermis. CONCLUSIONS IGF-1/IGF-1R signaling was demonstrated to play a key role in maintaining human epidermal homeostasis. This method provides a new framework to investigate gene function in human epidermal homeostasis.
Collapse
Affiliation(s)
- Taichi Muraguchi
- Bioscience & Technology Development Center, FUJIFILM Corporation, 577 Kaisei, Kanagawa 258-8577, Japan; Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
| | - Daisuke Nanba
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Emi K Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Tomoko Tashiro
- Pharmaceutical & Healthcare Research Laboratories, FUJIFILM Corporation, 577 Kaisei, Kanagawa 258-8577, Japan
| |
Collapse
|
23
|
Mainzer C, Remoué N, Molinari J, Rousselle P, Barricchello C, Lago JC, Sommer P, Sigaudo-Roussel D, Debret R. In vitro epidermis model mimicking IGF-1-specific age-related decline. Exp Dermatol 2019; 27:537-543. [PMID: 29603432 DOI: 10.1111/exd.13547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2018] [Indexed: 12/13/2022]
Abstract
Ageing is a complex multifaceted process affecting skin functionality and structure. Several 3D organotypic skin culture models have reproduced ageing by inducing replicative senescence, glycation or oxidative stress. Yet, very few models have focused on hormonal ageing and especially the insulin-like growth factor 1 (IGF-1) signalling pathway, which has been associated with longevity in animal studies and is necessary for the early stages of skin development. In this study, we built an organotypic epidermis model with targeted IGF-1 receptor knockdown to reproduce some aspects of hormonal ageing on skin. Our model displayed morphological and functional features of aged epidermis, which were mostly attributed to a loss of function of the Stratum basale. IGF-1 receptor knockdown keratinocytes depicted an extended cell cycle, reduced proliferation potential and reduced adhesion capacities and greater sensitivity to oxidative stress than control cells. Altogether, this model represents an essential tool for further investigations into the mechanisms linked to some aspects of hormonal decline or when screening for potent anti-ageing compounds.
Collapse
Affiliation(s)
- Carine Mainzer
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| | - Noëlle Remoué
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| | - Jennifer Molinari
- Natura Inovação e Tecnologia de Produtos, Cajamar, São Paulo, Brasil
| | - Patricia Rousselle
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| | | | - Juliana C Lago
- Natura Inovação e Tecnologia de Produtos, Cajamar, São Paulo, Brasil
| | - Pascal Sommer
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| | - Dominique Sigaudo-Roussel
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| | - Romain Debret
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR5305 CNRS/Université Lyon 1, Lyon, France
| |
Collapse
|
24
|
Valente Duarte De Sousa IC. New and emerging drugs for the treatment of acne vulgaris in adolescents. Expert Opin Pharmacother 2019; 20:1009-1024. [DOI: 10.1080/14656566.2019.1584182] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
25
|
Liu B, Liu Y, Wang L, Hou C, An M. The effects of pressure intervention on wound healing and scar formation in a Bama minipig model. Burns 2019; 45:413-422. [DOI: 10.1016/j.burns.2018.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/16/2018] [Accepted: 09/05/2018] [Indexed: 01/16/2023]
|
26
|
Abstract
A multilayered epithelium to fulfil its function must be replaced throughout the lifespan. This is possible due to the presence of multipotent, self-renewing epidermal stem cells that give rise to differentiated cell lineages: keratinocytes, hairs, as well as sebocytes. Till now the molecular mechanisms responsible for stem cell quiescent, proliferation, and differentiation have not been fully established. It is suggested that epidermal stem cells might change their fate, both due to intrinsic events and as a result of niche-dependent extrinsic signals; however other yet unknown factors may also be involved in this process. Given the increasing excitement evoked by self-renewing epidermal stem cells, as one of the sources of adult stem cells, it seems important to reveal the mechanisms that govern their fate. In this chapter, we describe recent advances in the characterisation of the epidermal stem cells and their compartments. Furthermore, we focus on the interplay between epidermal stem cells and extrinsic signals and their role in quiescence, proliferation, and differentiation of appropriate epidermal stem cell lineages.
Collapse
|
27
|
Ito N, Seki S, Ueda F. Effects of Composite Supplement Containing Collagen Peptide and Ornithine on Skin Conditions and Plasma IGF-1 Levels-A Randomized, Double-Blind, Placebo-Controlled Trial. Mar Drugs 2018; 16:md16120482. [PMID: 30513923 PMCID: PMC6315531 DOI: 10.3390/md16120482] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023] Open
Abstract
Aging-associated changes of skin conditions are a major concern for maintaining quality of life. Therefore, the improvement of skin conditions by dietary supplementation is a topic of public interest. In this study, we hypothesized that a composite supplement containing fish derived-collagen peptide and ornithine (CPO) could improve skin conditions by increasing plasma growth hormone and/or insulin-like growth factor-1 (IGF-1) levels. Twenty-two healthy Japanese participants were enrolled in an 8-week double-blind placebo-controlled pilot study. They were assigned to either a CPO group, who were supplemented with a drink containing CPO, or an identical placebo group. We examined skin conditions including elasticity and transepidermal water loss (TEWL), as well as plasma growth hormone and IGF-1 levels. Skin elasticity and TEWL were significantly improved in the CPO group compared with the placebo group. Furthermore, only the CPO group showed increased plasma IGF-1 levels after 8 weeks of supplementation compared with the baseline. Our results might suggest the novel possibility for the use of CPO to improve skin conditions by increasing plasma IGF-1 levels.
Collapse
Affiliation(s)
- Naoki Ito
- Pharmaceutical and Healthcare Research Laboratories, Research and Development Management Headquarters, FUJIFILM Corporation, 577, Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa 258-8577, Japan.
| | - Shinobu Seki
- Pharmaceutical and Healthcare Research Laboratories, Research and Development Management Headquarters, FUJIFILM Corporation, 577, Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa 258-8577, Japan.
| | - Fumitaka Ueda
- Pharmaceutical and Healthcare Research Laboratories, Research and Development Management Headquarters, FUJIFILM Corporation, 577, Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa 258-8577, Japan.
| |
Collapse
|
28
|
Weingarten G, Ben Yaakov A, Dror E, Russ J, Magin TM, Kahn CR, Wertheimer E. Insulin receptor plays a central role in skin carcinogenesis by regulating cytoskeleton assembly. FASEB J 2018; 33:2241-2251. [PMID: 30332298 DOI: 10.1096/fj.201800847r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Diabetes mellitus prevalence is increasing rapidly and is a major cause of mortality and morbidity worldwide. In addition to the known severe complications associated with the disease, in recent years diabetes has been recognized as a major risk factor for cancer. Patients with diabetes experience significantly higher incidence of and higher mortality rates from many types of cancer. However, to date there are no conclusive data on the pathophysiology underlying the association between these two diseases. We previously reported that insulin regulates skin proliferation and differentiation, while IGF1 had different sometimes contrasting effects to those of insulin, suggesting direct involvement of insulin in transformation. To this end, we developed an epidermal skin-specific insulin receptor knockout (SIRKO) mouse, in which the insulin receptor (IR) is inactivated only in skin, with no other metabolic consequences. We found that IR inactivation by itself resulted in a marked decrease in skin tumorigenesis. In the control group 100% of the mice developed tumors, but in the SIRKO group tumor incidence was over 60% lower, and 25% of the SIRKO mice did not develop tumors at all, and the tumors that did develop were smaller and benign in their appearance. Furthermore, IR inactivation in vitro not only prevented cell transformation but also reversed the keratinocyte-transformed phenotype. We found that IR inactivation led to a striking abnormality in the major keratin cytoskeleton filaments structure in both in vivo and in vitro, a change that we were able to link to the decreased transformation potential in IR-null cells. In summary, we identified a unique pathway in which IR regulates cytoskeletal assembly, thus affecting skin transformation, opening a new potential target for cancer treatment and prevention.-Weingarten, G., Ben Yaakov, A., Dror, E., Russ, J., Magin, T. M., Kahn, C. R., Wertheimer, E. Insulin receptor plays a central role in skin carcinogenesis by regulating cytoskeleton assembly.
Collapse
Affiliation(s)
- Galina Weingarten
- Department of Pathology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Aya Ben Yaakov
- Department of Pathology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Erez Dror
- Department of Pathology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jenny Russ
- Department of Pathology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Thomas M Magin
- Institute of Biology and Sächsischer Inkubator für Klinische Translation (SIKT), University of Leipzig, Leipzig, Germany; and
| | - C Ronald Kahn
- Joslin Diabetes Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Efrat Wertheimer
- Department of Pathology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
29
|
T Cell Leukemia/Lymphoma 1A is essential for mouse epidermal keratinocytes proliferation promoted by insulin-like growth factor 1. PLoS One 2018; 13:e0204775. [PMID: 30286151 PMCID: PMC6171881 DOI: 10.1371/journal.pone.0204775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/13/2018] [Indexed: 12/25/2022] Open
Abstract
T Cell Leukemia/Lymphoma 1A is expressed during B-cell differentiation and, when over-expressed, acts as an oncogene in mouse (Tcl1a) and human (TCL1A) B-cell chronic lymphocytic leukemia (B-CLL) and T-cell prolymphocytic leukemia (T-PLL). Furthermore, in the murine system Tcl1a is expressed in the ovary, testis and in pre-implantation embryos, where it plays an important role in blastomere proliferation and in embryonic stem cell (ESC) proliferation and self-renewal. We have also observed that Tcl1-/- adult mice exhibit alopecia and deep ulcerations. This finding has led us to investigate the role of TCL1 in mouse skin and hair follicles. We have found that TCL1 is expressed in the proliferative structure (i.e. the secondary hair germ) and in the stem cell niche (i.e. the bulge) of the hair follicle during regeneration phase and it is constitutively expressed in the basal layer of epidermis where it is required for the correct proliferative–differentiation program of the keratinocytes (KCs). Taking advantage of the murine models we have generated, including the Tcl1-/- and the K14-TCL1 transgenic mouse, we have analysed the function of TCL1 in mouse KCs and the molecular pathways involved. We provide evidence that in the epidermal compartment TCL1 has a role in the regulation of KC proliferation, differentiation, and apoptosis. In particular, the colony-forming efficiency (CFE) and the insulin-like growth factor 1 (IGF1)-induced proliferation are dramatically impaired, while apoptosis is increased, in KCs from Tcl1-/- mice when compared to WT. Moreover, the expression of differentiation markers such as cytokeratin 6 (KRT6), filaggrin (FLG) and involucrin (IVL) are profoundly altered in mutant mice (Tcl1-/-). Importantly, by over-expressing TCL1A in basal KCs of the K14-TCL1 transgenic mouse model, we observed a significant rescue of cell proliferation, differentiation and apoptosis of the mutant phenotype. Finally, we found TCL1 to act, at least in part, via increasing phospho-ERK1/2 and decreasing phospho-P38 MAPK. Hence, our data demonstrate that regulated levels of Tcl1a are necessary for the correct proliferation and differentiation of the interfollicular KCs.
Collapse
|
30
|
Shi G, Liao PY, Cai XL, Pi XX, Zhang MF, Li SJ, Quan JH, Fan YM. FoxO1 enhances differentiation and apoptosis in human primary keratinocytes. Exp Dermatol 2018; 27:1254-1260. [PMID: 30144329 DOI: 10.1111/exd.13775] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/09/2018] [Accepted: 08/22/2018] [Indexed: 12/24/2022]
Abstract
Forkhead box-O1 (FoxO1) is a key nutrient- and growth factor-dependent regulator of metabolism, but its functional role in human primary keratinocytes (HPKs) is less known. To investigate the role of FoxO1 in HPKs and effect of insulin-like growth factor 1 (IGF-1) and isotretinoin on FoxO1 expression, HPKs were treated with 1.2 mmol/L calcium chloride, 1-20 ng/mL IGF-1 and 0.1-10 μmol/L isotretinoin. Recombinant adenovirus expressing FoxO1 or FKHR shRNA lentivirus transfection was introduced to upregulate or silence FoxO1 expression. Epidermal FoxO1 immunostaining was lower in acne lesion than in normal skin. FoxO1 overexpression induced involucrin expression, G2/M arrest and apoptosis but suppressed proliferation, while FoxO1 silencing decreased involucrin expression but increased proliferation, S phase and viable cells in HPKs. IGF-1 downregulated FoxO1 and involucrin but upregulated p-Akt expression in HPKs, which was blocked by pretreatment with LY294002. Isotretinoin enhanced FoxO1, p53 and p21 but inhibited p-FoxO1 and involucrin expression in HPKs. These results demonstrate that FoxO1 promotes differentiation and apoptosis in HPKs. IGF-1 may reduce keratinocyte differentiation through PI3K/Akt/FoxO1 pathway, while isotretinoin can reinforce FoxO1 expression. FoxO1 may be involved in acne pathogenesis and could serve as a potential therapeutic target.
Collapse
Affiliation(s)
- Ge Shi
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Pei-Yu Liao
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiao-Lin Cai
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiao-Xue Pi
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Man-Feng Zhang
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shi-Jie Li
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Juan-Hua Quan
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yi-Ming Fan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| |
Collapse
|
31
|
Yu T, Gao M, Yang P, Liu D, Wang D, Song F, Zhang X, Liu Y. Insulin promotes macrophage phenotype transition through PI3K/Akt and PPAR-γ signaling during diabetic wound healing. J Cell Physiol 2018; 234:4217-4231. [PMID: 30132863 DOI: 10.1002/jcp.27185] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 07/17/2018] [Indexed: 12/22/2022]
Abstract
Overactivation and persistent chronic inflammation are the major pathogenic characteristics of diabetic-impaired healing, and diabetic wound healing can be promoted by stimulating the transition of macrophage phenotype from pro-inflammatory (M1) to anti-inflammatory (M2). Our previous studies found that the application of insulin induced an advanced initiation and resolution of inflammatory response. To further explore the mechanism, we have investigated the effect of insulin on macrophage phenotype switch utilizing a diabetic rat model and a human monocytic THP-1 cell. We have utilized the high glucose (HG) and HG plus insulin to stimulate the M1 macrophages derived from lipopolysaccharide-treated THP-1 cells. We studied the secretion of inflammatory mediator and related signaling pathways by using western blot test, immunofluorescence, and Rac1 pull-down assay. We have found that the production of pro-inflammatory mediators, which thereafter induced macrophage polarization toward M1 phenotype, has been elevated due to consistent HG exposure. HG plus insulin stimulation, on the other hand, promoted anti-inflammatory effects. Experiments performed on diabetic burn wounds indicated that the insulin modulated macrophages transition from M1 to M2 phenotype. We found that PI3K/Akt/Rac-1 and PPAR-γ signaling pathways are involved in the anti-inflammatory effect of insulin. Insulin inhibited HG-induced activation of p38, NF-κB, and STAT1 transcriptional activity by activating Akt-Rac-1 signaling. Moreover, insulin performs anti-inflammatory effects through upregulation of PPAR-γ expression and induced P38-mediated dephosphorylation of PPAR-γ (Ser112). In conclusion, insulin downregulates inflammatory response, regulates M1 macrophage transition in response to HG, and thus improves chronic wound healing.
Collapse
Affiliation(s)
- Tianyi Yu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| | - Min Gao
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| | - Peilang Yang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| | - Dan Liu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| | - Di Wang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| | - Fei Song
- Shanghai Institute of Burns Research, Shanghai, China
| | - Xiong Zhang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Liu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Burns Research, Shanghai, China
| |
Collapse
|
32
|
Li Y, Wu J, Luo G, He W. Functions of Vγ4 T Cells and Dendritic Epidermal T Cells on Skin Wound Healing. Front Immunol 2018; 9:1099. [PMID: 29915573 PMCID: PMC5994537 DOI: 10.3389/fimmu.2018.01099] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/02/2018] [Indexed: 01/08/2023] Open
Abstract
Wound healing is a complex and dynamic process that progresses through the distinct phases of hemostasis, inflammation, proliferation, and remodeling. Both inflammation and re-epithelialization, in which skin γδ T cells are heavily involved, are required for efficient skin wound healing. Dendritic epidermal T cells (DETCs), which reside in murine epidermis, are activated to secrete epidermal cell growth factors, such as IGF-1 and KGF-1/2, to promote re-epithelialization after skin injury. Epidermal IL-15 is not only required for DETC homeostasis in the intact epidermis but it also facilitates the activation and IGF-1 production of DETC after skin injury. Further, the epidermal expression of IL-15 and IGF-1 constitutes a feedback regulatory loop to promote wound repair. Dermis-resident Vγ4 T cells infiltrate into the epidermis at the wound edges through the CCR6-CCL20 pathway after skin injury and provide a major source of IL-17A, which enhances the production of IL-1β and IL-23 in the epidermis to form a positive feedback loop for the initiation and amplification of local inflammation at the early stages of wound healing. IL-1β and IL-23 suppress the production of IGF-1 by DETCs and, therefore, impede wound healing. A functional loop may exist among Vγ4 T cells, epidermal cells, and DETCs to regulate wound repair.
Collapse
Affiliation(s)
- Yashu Li
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Wu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China.,Department of Burns, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| |
Collapse
|
33
|
Role of IGF-1R in ameliorating apoptosis of GNE deficient cells. Sci Rep 2018; 8:7323. [PMID: 29743626 PMCID: PMC5943343 DOI: 10.1038/s41598-018-25510-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 04/10/2018] [Indexed: 12/18/2022] Open
Abstract
Sialic acids (SAs) are nine carbon acidic amino sugars, found at the outermost termini of glycoconjugates performing various physiological and pathological functions. SA synthesis is regulated by UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) that catalyzes rate limiting steps. Mutations in GNE result in rare genetic disorders, GNE myopathy and Sialuria. Recent studies indicate an alternate role of GNE in cell apoptosis and adhesion, besides SA biosynthesis. In the present study, using a HEK cell-based model for GNE myopathy, the role of Insulin-like Growth Factor Receptor (IGF-1R) as cell survival receptor protein was studied to counter the apoptotic effect of non-functional GNE. In the absence of functional GNE, IGF-1R was hyposialylated and transduced a downstream signal upon IGF-1 (IGF-1R ligand) treatment. IGF-1 induced activation of IGF-1R led to AKT (Protein Kinase B) phosphorylation that may phosphorylate BAD (BCL2 Associated Death Promoter) and its dissociation from BCL2 to prevent apoptosis. However, reduced ERK (Extracellular signal-regulated kinases) phosphorylation in GNE deficient cells after IGF-1 treatment suggests downregulation of the ERK pathway. A balance between the ERK and AKT pathways may determine the cell fate towards survival or apoptosis. Our study suggests that IGF-1R activation may rescue apoptotic cell death of GNE deficient cell lines and has potential as therapeutic target.
Collapse
|
34
|
Dam DHM, Paller AS. Gangliosides in Diabetic Wound Healing. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 156:229-239. [PMID: 29747815 DOI: 10.1016/bs.pmbts.2017.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An organized series of complicated biological and molecular phenomena is required for normal skin wound healing. These processes depend on normal cellular responses to cytokines, growth factors, and other mediators, such as clotting factors, prostaglandins, free radicals, and nitric oxide. In diabetic ulcers, impaired responses to these molecules lead to abnormalities in vascularization, innervation, matrix reconstruction, and reepithelialization of wounds. keratinocyte migration and proliferation on an extracellular matrix is critical in reepithelialization, but the response to growth factors is blunted in diabetes, including the insulin/IGF-1signaling axis. Ganglioside GM3, a sialylated epidermal glycosphingolipid, has been identified as a key mediator of the inhibition of insulin/IGF-1 signaling in response to factors, such as tumor necrosis factor-alpha (TNF-α) and hyperglycemia. Decreased expression of GM3 and the enzyme required for its synthesis, GM3 synthase (GM3S), leads to increased insulin/IGF-1 receptor signaling and accelerated keratinocyte migration, even in the presence of high glucose levels. GM3 depletion in GM3S knockout diabetic mice and diet-induced diabetic mice treated topically with nanoconstruct-mediated GM3S-targeting gene regulation also accelerates wound healing. These recent observations, coupled with evidence that GM3 depletion reverses distal innervation abnormalities in diabetic mice, suggest that GM3-depleting strategies are a promising new approach for human diabetic wounds.
Collapse
Affiliation(s)
| | - Amy S Paller
- Northwestern University, Chicago, IL, United States.
| |
Collapse
|
35
|
Vishwamitra D, George SK, Shi P, Kaseb AO, Amin HM. Type I insulin-like growth factor receptor signaling in hematological malignancies. Oncotarget 2018; 8:1814-1844. [PMID: 27661006 PMCID: PMC5352101 DOI: 10.18632/oncotarget.12123] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/12/2016] [Indexed: 12/19/2022] Open
Abstract
The insulin-like growth factor (IGF) signaling system plays key roles in the establishment and progression of different types of cancer. In agreement with this idea, substantial evidence has shown that the type I IGF receptor (IGF-IR) and its primary ligand IGF-I are important for maintaining the survival of malignant cells of hematopoietic origin. In this review, we discuss current understanding of the role of IGF-IR signaling in cancer with a focus on the hematological neoplasms. We also address the emergence of IGF-IR as a potential therapeutic target for the treatment of different types of cancer including plasma cell myeloma, leukemia, and lymphoma.
Collapse
Affiliation(s)
- Deeksha Vishwamitra
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Suraj Konnath George
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ping Shi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Ahmed O Kaseb
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hesham M Amin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, USA
| |
Collapse
|
36
|
Yu T, Gao M, Yang P, Pei Q, Liu D, Wang D, Zhang X, Liu Y. Topical insulin accelerates cutaneous wound healing in insulin-resistant diabetic rats. Am J Transl Res 2017; 9:4682-4693. [PMID: 29118927 PMCID: PMC5666074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 10/10/2017] [Indexed: 06/07/2023]
Abstract
Insulin signaling defects could lead to insulin resistance in insulin target organs: typically, in the muscler, liver, and adipose tissue. We have observed that insulin accelerated diabetic wound healing in our previous works; to further elucidate the mechanism, we investigated the expression and activation of insulin and insulin-like growth factor (IGF)-1 signaling, compared insulin sensitivity in skin tissue with that in liver tissue, and also observed the regulation of insulin on inflammatory response of wounds during the healing process. We found lower expression of insulin receptor, phos-AKT, IGF-1 in type II diabetic rat skin compared with that in normal rat skin. However, the level of phos-AKT in diabetic rat skin remarkably increased after systemic insulin injection, whereas no significant change of phos-AKT was observed in liver upon insulin stimulation. In insulin-treated wounds, we detected a significant increase in insulin signaling proteins and growth factor, as well as the phosphorylated insulin receptor substrate-1 and AKT. The increased Glut1 protein level and translocation of Glut1 from cytosol to cell membrane of the basal epidermal cells were also observed after insulin application. Insulin-treated wounds showed advanced infiltration and resolution of macrophages and a change pattern similar to that of inflammatory mediators, including TNF-α and IL-6. Our findings support that insulin is a valid agent for diabetic wound healing because of its effect on ameliorating defective insulin action and regulating inflammation response. Our results indicate the presence of subtle insulin responsiveness in diabetic skin tissue, regardless of the presence of impaired insulin sensitivity, which could be the cellular and molecular mechanism of insulin accelerating diabetic wound healing.
Collapse
Affiliation(s)
- Tianyi Yu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Min Gao
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Peilang Yang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Qing Pei
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Dan Liu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Di Wang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Xiong Zhang
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| | - Yan Liu
- Department of Burns and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
- Shanghai Burns InstitutionShanghai, China
| |
Collapse
|
37
|
Snail-Modulated MicroRNA 493 Forms a Negative Feedback Loop with the Insulin-Like Growth Factor 1 Receptor Pathway and Blocks Tumorigenesis. Mol Cell Biol 2017; 37:MCB.00510-16. [PMID: 27956702 DOI: 10.1128/mcb.00510-16] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/06/2016] [Indexed: 12/15/2022] Open
Abstract
In this study, we have identified one microRNA, microRNA 493 (miR-493), which could simultaneously and directly regulate multiple genes downstream of the insulin-like growth factor 1 receptor (IGF1R) pathway, including IGF1R, by binding with complementary sequences in the 3' untranslated region (UTR) of mRNAs of IGF1R, insulin receptor substrate 1 (IRS1), and mitogen-activated protein kinase 1 (MAPK1), thereby potentiating their inhibitory function at multiple levels in development and progression of cancers. This binding was further confirmed by pulldown of miR with AGO-2 antibody. Further, results from head and neck samples showed that miR-493 levels were significantly downregulated in tumors, with a concomitant increase in the expression of IGF1R and key downstream effectors. Functional studies from miR-493 overexpression cells and nude-mouse models revealed the tumor suppressor functions of miR-493. Regulation studies revealed that Snail binds to the miR-493 promoter and represses it. We found the existence of a dynamic negative feedback loop in the regulation of IGF1R and miR-493 mediated via Snail. Our study showed that nicotine treatment significantly decreases the levels of miR-493-with a concomitant increase in the levels of Snail-an indication of progression of cells toward tumorigenesis, reestablishing the role of tobacco as a major risk factor for head and neck cancers and elucidating the mechanism behind nicotine-mediated tumorigenesis.
Collapse
|
38
|
Yang ZQ, Zhang HL, Duan CC, Geng S, Wang K, Yu HF, Yue ZP, Guo B. IGF1 regulates RUNX1 expression via IRS1/2: Implications for antler chondrocyte differentiation. Cell Cycle 2017; 16:522-532. [PMID: 28055425 DOI: 10.1080/15384101.2016.1274471] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Although IGF1 is important for the proliferation and differentiation of chondrocytes, its underlying molecular mechanism is still unknown. Here we addressed the physiologic function of IGF1 in antler cartilage and explored the interplay of IGF1, IRS1/2 and RUNX1 in chondrocyte differentiation. The results showed that IGF1 was highly expressed in antler chondrocytes. Exogenous rIGF1 could increase the proliferation of chondrocytes and cell proportion in the S phase, whereas IGF1R inhibitor PQ401 abrogated the induction by rIGF1. Simultaneously, IGF1 could stimulate the expression of IHH which was a well-known marker for prehypertrophic chondrocytes. Further analysis evidenced that IGF1 regulated the expression of IRS1/2 whose silencing resulted in a rise of IHH mRNA levels, but the regulation was impeded by PQ401. Knockdown of IRS1 or IRS2 with specific siRNA could greatly enhance rIGF1-induced chondrocyte differentiation and reduce the expression of RUNX1. Extraneous rRUNX1 might rescue the effects of IRS1 or IRS2 siRNA on the differentiation. In antler chondrocytes, IGF1 played a role in modulating the expression of RUNX1 through IGF1R. Moreover, attenuation of RUNX1 expression advanced the differentiation elicited by rIGF1, while administration of rRUNX1 to chondrocytes treated with IGF1 siRNA or PQ401 reduced their differentiation. Additionally, siRNA-mediated downregulation of IRS1 or IRS2 in the chondrocytes impaired the interaction between IGF1 and RUNX1. Collectively, IGF1 could promote the proliferation and differentiation of antler chondrocytes. Furthermore, IRS1/2 might act downstream of IGF1 to regulate chondrocyte differentiation through targeting RUNX1.
Collapse
Affiliation(s)
- Zhan-Qing Yang
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Hong-Liang Zhang
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Cui-Cui Duan
- b Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences , Changchun , P. R. China
| | - Shuang Geng
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Kai Wang
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Hai-Fan Yu
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Zhan-Peng Yue
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| | - Bin Guo
- a College of Veterinary Medicine, Jilin University , Changchun , P. R. China
| |
Collapse
|
39
|
Saito K, Ando H, Goto K, Kakuma T, Kawano Y, Narahara H, Hatano Y, Fujiwara S. A Case of Hyperandrogenism, Insulin Resistance, and Acanthosis Nigricans Syndrome; Increase in Proliferating Cell Nuclear Antigen and Decrease in Loricrin in Acanthosis Nigricans. Ann Dermatol 2016; 28:637-639. [PMID: 27746646 PMCID: PMC5064196 DOI: 10.5021/ad.2016.28.5.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 12/17/2014] [Accepted: 08/18/2015] [Indexed: 11/08/2022] Open
Affiliation(s)
- Kanami Saito
- Department of Dermatology, Faculty of Medicine, Oita University, Oita, Japan
| | - Hisae Ando
- Department of Endocrinology, Faculty of Medicine, Oita University, Oita, Japan
| | - Koro Goto
- Department of Endocrinology, Faculty of Medicine, Oita University, Oita, Japan
| | - Tetsuya Kakuma
- Department of Endocrinology, Faculty of Medicine, Oita University, Oita, Japan
| | - Yasushi Kawano
- Department of Gynecotocology, Faculty of Medicine, Oita University, Oita, Japan
| | - Hisashi Narahara
- Department of Gynecotocology, Faculty of Medicine, Oita University, Oita, Japan
| | - Yutaka Hatano
- Department of Dermatology, Faculty of Medicine, Oita University, Oita, Japan
| | - Sakuhei Fujiwara
- Department of Dermatology, Faculty of Medicine, Oita University, Oita, Japan
| |
Collapse
|
40
|
Dam DHM, Wang XQ, Sheu S, Vijay M, Shipp D, Miller L, Paller AS. Ganglioside GM3 Mediates Glucose-Induced Suppression of IGF-1 Receptor-Rac1 Activation to Inhibit Keratinocyte Motility. J Invest Dermatol 2016; 137:440-448. [PMID: 27729281 DOI: 10.1016/j.jid.2016.09.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/22/2016] [Accepted: 09/23/2016] [Indexed: 12/26/2022]
Abstract
Activation of insulin-like growth factor-1 (IGF-1) receptor (IGF1R) signaling induces keratinocyte migration, but little is known about its regulation, including in diabetic wounds. GM3, a lipid raft ganglioside synthesized by GM3 synthase (GM3S), regulates receptor signaling. In diabetic mice, knockout or topically applied nanoconstruct-mediated knockdown of GM3S promotes wound edge IGF1R phosphorylation and re-epithelialization. Through modulating GM3 expression, we explored the role of GM3 in regulating human keratinocyte IGF1R signaling. Increases in GM3 and GM3S expression, including by exposure to high glucose, inhibit keratinocyte migration and IGF-1-induced chemotaxis in association with inhibition of IGF1R phosphorylation, suppression of Rac1 signaling, and activation of RhoA signaling. In contrast, GM3 depletion accelerates cell migration; increases cell velocity, displacement, and persistence; and activates IGF1R-Rac1 signaling. These data implicate GM3 in mediating glucose-induced suppression of IGF1R-Rac1 signaling. Furthermore, our findings provide evidence of a pivotal role for GM3-induced insulin resistance in impairing keratinocyte migration and reinforce the previously published studies in diabetic mice supporting GM3-depleting strategies as an approach for accelerating the healing of human diabetic wounds.
Collapse
Affiliation(s)
- Duncan Hieu M Dam
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Xiao-Qi Wang
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sarah Sheu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mahima Vijay
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Desmond Shipp
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Luke Miller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
| |
Collapse
|
41
|
Effects of insulin on the skin: possible healing benefits for diabetic foot ulcers. Arch Dermatol Res 2016; 308:677-694. [PMID: 27655635 DOI: 10.1007/s00403-016-1686-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/04/2016] [Accepted: 09/12/2016] [Indexed: 12/16/2022]
Abstract
Diabetic foot ulcers affect 15-20 % of all diabetic patients and remain an important challenge since the available therapies have limited efficacy and some of the novel therapeutic approaches, which include growth factors and stem cells, are highly expensive and their safety remains to be evaluated. Despite its low cost and safety, the interest for topical insulin as a healing agent has increased only in the last 20 years. The molecular mechanisms of insulin signaling and its metabolic effects have been well studied in its classical target tissues. However, little is known about the specific effects of insulin in healthy or even diabetic skin. In addition, the mechanisms involved in the effects of insulin on wound healing have been virtually unknown until about 10 years ago. This paper will review the most recent advances in the cellular and molecular mechanisms that underlie the beneficial effects of insulin on skin wound healing in diabetes. Emerging evidence that links dysfunction of key cellular organelles, namely the endoplasmic reticulum and the mitochondria, to changes in the autophagy response, as well as the impaired wound healing in diabetic patients will also be discussed along with the putative mechanisms whereby insulin could regulate/modulate these alterations.
Collapse
|
42
|
Karimi K, Lindgren TH, Koch CA, Brodell RT. Obesity as a risk factor for malignant melanoma and non-melanoma skin cancer. Rev Endocr Metab Disord 2016; 17:389-403. [PMID: 27832418 DOI: 10.1007/s11154-016-9393-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The dramatic increases in incidence of both obesity and many cancers including skin cancer emphasize the need to better understand the pathophysiology of both conditions and their connections. Melanoma is considered the fastest growing cancer and rates of non-melanoma skin cancer have also increased over the last decade. The molecular mechanisms underlying the association between obesity and skin cancer are not clearly understood but emerging evidence points to changes in the tumor microenvironment including aberrant cell signaling and genomic instability in the chronic inflammatory state many obese individuals experience. This article reviews the literature linking obesity to melanoma and non-melanoma skin cancer.
Collapse
Affiliation(s)
- K Karimi
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - T H Lindgren
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - C A Koch
- Division of Endocrinology, University of Mississippi Medical Center, Jackson, MS, USA
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
- G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS, USA
| | - Robert T Brodell
- Department of Dermatology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA.
- Department of Pathology, University of Mississippi Medical Center, Jackson, MS, USA.
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| |
Collapse
|
43
|
Kunche S, Yan H, Calof AL, Lowengrub JS, Lander AD. Feedback, Lineages and Self-Organizing Morphogenesis. PLoS Comput Biol 2016; 12:e1004814. [PMID: 26989903 PMCID: PMC4798729 DOI: 10.1371/journal.pcbi.1004814] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 02/15/2016] [Indexed: 01/31/2023] Open
Abstract
Feedback regulation of cell lineage progression plays an important role in tissue size homeostasis, but whether such feedback also plays an important role in tissue morphogenesis has yet to be explored. Here we use mathematical modeling to show that a particular feedback architecture in which both positive and negative diffusible signals act on stem and/or progenitor cells leads to the appearance of bistable or bi-modal growth behaviors, ultrasensitivity to external growth cues, local growth-driven budding, self-sustaining elongation, and the triggering of self-organization in the form of lamellar fingers. Such behaviors arise not through regulation of cell cycle speeds, but through the control of stem or progenitor self-renewal. Even though the spatial patterns that arise in this setting are the result of interactions between diffusible factors with antagonistic effects, morphogenesis is not the consequence of Turing-type instabilities.
Collapse
Affiliation(s)
- Sameeran Kunche
- Department of Biomedical Engineering, University of California, Irvine, Irvine, California, United States of America
- Center for Complex Biological Systems, University of California, Irvine, Irvine, California, United States of America
| | - Huaming Yan
- Center for Complex Biological Systems, University of California, Irvine, Irvine, California, United States of America
- Department of Mathematics, University of California, Irvine, Irvine, California, United States of America
| | - Anne L. Calof
- Center for Complex Biological Systems, University of California, Irvine, Irvine, California, United States of America
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, California, United States of America
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, California, United States of America
- * E-mail: (ALC); (JSL); (ADL)
| | - John S. Lowengrub
- Department of Biomedical Engineering, University of California, Irvine, Irvine, California, United States of America
- Center for Complex Biological Systems, University of California, Irvine, Irvine, California, United States of America
- Department of Mathematics, University of California, Irvine, Irvine, California, United States of America
- * E-mail: (ALC); (JSL); (ADL)
| | - Arthur D. Lander
- Department of Biomedical Engineering, University of California, Irvine, Irvine, California, United States of America
- Center for Complex Biological Systems, University of California, Irvine, Irvine, California, United States of America
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, California, United States of America
- * E-mail: (ALC); (JSL); (ADL)
| |
Collapse
|
44
|
Hoke GD, Ramos C, Hoke NN, Crossland MC, Shawler LG, Boykin JV. Atypical Diabetic Foot Ulcer Keratinocyte Protein Signaling Correlates with Impaired Wound Healing. J Diabetes Res 2016; 2016:1586927. [PMID: 27840833 PMCID: PMC5093264 DOI: 10.1155/2016/1586927] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/20/2016] [Accepted: 09/25/2016] [Indexed: 11/18/2022] Open
Abstract
Diabetes mellitus is associated with chronic diabetic foot ulcers (DFUs) and wound infections often resulting in lower extremity amputations. The protein signaling architecture of the mechanisms responsible for impaired DFU healing has not been characterized. In this preliminary clinical study, the intracellular levels of proteins involved in signal transduction networks relevant to wound healing were non-biasedly measured using reverse-phase protein arrays (RPPA) in keratinocytes isolated from DFU wound biopsies. RPPA allows for the simultaneous documentation and assessment of the signaling pathways active in each DFU. Thus, RPPA provides for the accurate mapping of wound healing pathways associated with apoptosis, proliferation, senescence, survival, and angiogenesis. From the study data, we have identified potential diagnostic, or predictive, biomarkers for DFU wound healing derived from the ratios of quantified signaling protein expressions within interconnected pathways. These biomarkers may allow physicians to personalize therapeutic strategies for DFU management on an individual basis based upon the signaling architecture present in each wound. Additionally, we have identified altered, interconnected signaling pathways within DFU keratinocytes that may help guide the development of therapeutics to modulate these dysregulated pathways, many of which parallel the therapeutic targets which are the hallmarks of molecular therapies for treating cancer.
Collapse
Affiliation(s)
- Glenn D. Hoke
- Theranostics Health, Inc., Gaithersburg, MD 20877, USA
| | - Corrine Ramos
- Theranostics Health, Inc., Gaithersburg, MD 20877, USA
| | | | - Mary C. Crossland
- HCA Chippenham Medical Center, Wound Healing Center, Richmond, VA 23235, USA
| | - Lisa G. Shawler
- HCA Chippenham Medical Center, Wound Healing Center, Richmond, VA 23235, USA
| | - Joseph V. Boykin
- HCA Retreat Doctors' Hospital, Wound Healing Center, Richmond, VA 23220, USA
- *Joseph V. Boykin:
| |
Collapse
|
45
|
Ye L, Robertson MA, Mastracci TL, Anderson RM. An insulin signaling feedback loop regulates pancreas progenitor cell differentiation during islet development and regeneration. Dev Biol 2015; 409:354-69. [PMID: 26658317 DOI: 10.1016/j.ydbio.2015.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 11/12/2015] [Accepted: 12/02/2015] [Indexed: 02/06/2023]
Abstract
As one of the key nutrient sensors, insulin signaling plays an important role in integrating environmental energy cues with organism growth. In adult organisms, relative insufficiency of insulin signaling induces compensatory expansion of insulin-secreting pancreatic beta (β) cells. However, little is known about how insulin signaling feedback might influence neogenesis of β cells during embryonic development. Using genetic approaches and a unique cell transplantation system in developing zebrafish, we have uncovered a novel role for insulin signaling in the negative regulation of pancreatic progenitor cell differentiation. Blocking insulin signaling in the pancreatic progenitors hastened the expression of the essential β cell genes insulin and pdx1, and promoted β cell fate at the expense of alpha cell fate. In addition, loss of insulin signaling promoted β cell regeneration and destabilization of alpha cell character. These data indicate that insulin signaling constitutes a tunable mechanism for β cell compensatory plasticity during early development. Moreover, using a novel blastomere-to-larva transplantation strategy, we found that loss of insulin signaling in endoderm-committed blastomeres drove their differentiation into β cells. Furthermore, the extent of this differentiation was dependent on the function of the β cell mass in the host. Altogether, our results indicate that modulation of insulin signaling will be crucial for the development of β cell restoration therapies for diabetics; further clarification of the mechanisms of insulin signaling in β cell progenitors will reveal therapeutic targets for both in vivo and in vitro β cell generation.
Collapse
Affiliation(s)
- Lihua Ye
- Herman B Wells Center for Pediatric Research in the Department of Pediatrics and the Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA
| | - Morgan A Robertson
- Herman B Wells Center for Pediatric Research in the Department of Pediatrics and the Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA
| | - Teresa L Mastracci
- Herman B Wells Center for Pediatric Research in the Department of Pediatrics and the Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA
| | - Ryan M Anderson
- Herman B Wells Center for Pediatric Research in the Department of Pediatrics and the Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, Van Nuys Medical Sciences Building MS2043, Indianapolis, IN 46202, USA.
| |
Collapse
|
46
|
Vishwamitra D, Curry CV, Alkan S, Song YH, Gallick GE, Kaseb AO, Shi P, Amin HM. The transcription factors Ik-1 and MZF1 downregulate IGF-IR expression in NPM-ALK⁺ T-cell lymphoma. Mol Cancer 2015; 14:53. [PMID: 25884514 PMCID: PMC4415347 DOI: 10.1186/s12943-015-0324-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 02/17/2015] [Indexed: 01/18/2023] Open
Abstract
Background The type I insulin-like growth factor receptor (IGF-IR) tyrosine kinase promotes the survival of an aggressive subtype of T-cell lymphoma by interacting with nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) oncogenic protein. NPM-ALK+ T-cell lymphoma exhibits much higher levels of IGF-IR than normal human T lymphocytes. The mechanisms underlying increased expression of IGF-IR in this lymphoma are not known. We hypothesized that upregulation of IGF-IR could be attributed to previously unrecognized defects that inherently exist in the transcriptional machinery in NPM-ALK+ T-cell lymphoma. Methods and results Screening studies showed substantially lower levels of the transcription factors Ikaros isoform 1 (Ik-1) and myeloid zinc finger 1 (MZF1) in NPM-ALK+ T-cell lymphoma cell lines and primary tumor tissues from patients than in human T lymphocytes. A luciferase assay supported that Ik-1 and MZF1 suppress IGF-IR gene promoter. Furthermore, ChIP assay showed that these transcription factors bind specific sites located within the IGF-IR gene promoter. Forced expression of Ik-1 or MZF1 in the lymphoma cells decreased IGF-IR mRNA and protein. This decrease was associated with downregulation of pIGF-IR, and the phosphorylation of its interacting proteins IRS-1, AKT, and NPM-ALK. In addition, overexpression of Ik-1 and MZF1 decreased the viability, proliferation, migration, and anchorage-independent colony formation of the lymphoma cells. Conclusions Our results provide novel evidence that the aberrant decreases in Ik-1 and MZF1 contribute significantly to the pathogenesis of NPM-ALK+ T-cell lymphoma through the upregulation of IGF-IR expression. These findings could be exploited to devise new strategies to eradicate this lymphoma. Electronic supplementary material The online version of this article (doi:10.1186/s12943-015-0324-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Deeksha Vishwamitra
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas, USA. .,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
| | - Choladda V Curry
- Department of Pathology and Immunology, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, USA.
| | - Serhan Alkan
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.
| | - Yao-Hua Song
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.
| | - Gary E Gallick
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX, 77030, USA. .,Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Ahmed O Kaseb
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Ping Shi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.
| | - Hesham M Amin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas, USA. .,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
| |
Collapse
|
47
|
Solomon Zemler R, Weingarten G, Sarfstein R, Laron Z, Werner H, Wertheimer E. Insulin analogues display atypical differentiative activities in skin keratinocytes. Arch Physiol Biochem 2015; 121:32-9. [PMID: 25897878 DOI: 10.3109/13813455.2014.1001856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND We have previously shown that both insulin and IGF1 lead to increased proliferation of keratinocytes. However, whereas insulin supports keratinocytes differentiation, IGF1 inhibits this process. The aim of the present study was to examine the proliferative and differentiative effects of insulin analogues (glargine, detemir, lispro and aspart) in primary keratinocytes in comparison with insulin and IGF1. METHODS Primary keratinocytes cultures were produced from newborn BALB/c mice skin. Proliferation rates were assessed by [(3)H]-thymidine incorporation and XTT assays and differentiation was evaluated by Western blots analysis. Insulin receptor and IGF1 receptor phosphorylation was assessed by immunoprecipitation assays. RESULTS Treatment with glargine or detemir resulted in an insulin-like effect on the differentiation process whereas lispro and aspart treatment led to an IGF1-like effect. In addition, treatment of keratinocytes with aspart led to a rapid phosphorylation of the IGF1 receptor. CONCLUSIONS Our study provides evidence that insulin analogues elicit atypical actions in the skin.
Collapse
|
48
|
Ruf M, Andreoli A, Itin P, Pluschke G, Schmid P. Ribosomal protein S6 is hyperactivated and differentially phosphorylated in epidermal lesions of patients with psoriasis and atopic dermatitis. Br J Dermatol 2014; 171:1533-6. [DOI: 10.1111/bjd.13248] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2014] [Indexed: 01/21/2023]
Affiliation(s)
- M.T. Ruf
- Swiss Tropical and Public Health Institute; Socinstrasse 57 4002 Basel Switzerland
- University of Basel; Basel Switzerland
| | - A. Andreoli
- Swiss Tropical and Public Health Institute; Socinstrasse 57 4002 Basel Switzerland
- University of Basel; Basel Switzerland
| | - P. Itin
- Department of Dermatology; University Hospital; Basel Switzerland
| | - G. Pluschke
- Swiss Tropical and Public Health Institute; Socinstrasse 57 4002 Basel Switzerland
- University of Basel; Basel Switzerland
| | - P. Schmid
- Swiss Tropical and Public Health Institute; Socinstrasse 57 4002 Basel Switzerland
- University of Basel; Basel Switzerland
| |
Collapse
|
49
|
Dobson CC, Thevasundaram K, Mongillo DL, Winterborn A, Holloway AC, Brien JF, Reynolds JN. Chronic prenatal ethanol exposure alters expression of central and peripheral insulin signaling molecules in adult guinea pig offspring. Alcohol 2014; 48:687-93. [PMID: 25278255 DOI: 10.1016/j.alcohol.2014.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Maternal ethanol consumption during pregnancy can produce a range of teratogenic outcomes in offspring. The mechanism of ethanol teratogenicity is multi-faceted, but may involve alterations in insulin and insulin-like growth factor (IGF) signaling pathways. These pathways are not only important for metabolism, but are also critically involved in neuronal survival and plasticity, and they can be altered by chronic prenatal ethanol exposure (CPEE). The objective of this study was to test the hypothesis that CPEE alters expression of insulin and IGF signaling molecules in the prefrontal cortex and liver of adult guinea pig offspring. Pregnant Dunkin-Hartley-strain guinea pigs received ethanol (4 g/kg maternal body weight/day) or isocaloric-sucrose/pair-feeding (nutritional control) throughout gestation. Fasting blood glucose concentration was measured in male and female offspring at postnatal day 150-200, followed by euthanasia, collection of prefrontal cortex and liver, and RNA extraction. IGF-1, IGF-1 receptor (IGF-1R), IGF-2, IGF-2 receptor (IGF-2R), insulin receptor substrate (IRS)-1, IRS-2, and insulin receptor (INSR) mRNA expression levels were measured in tissues using quantitative real-time PCR. The mean maternal blood ethanol concentration was 281 ± 15 mg/dL at 1 h after the second divided dose of ethanol on GD 57. CPEE resulted in increased liver weight in adult offspring, but produced no difference in fasting blood glucose concentration compared with nutritional control. In the liver, CPEE decreased mRNA expression of IGF-1, IGF-1R, and IGF-2, and increased IRS-2 mRNA expression in male offspring only compared with nutritional control. Female CPEE offspring had decreased INSR hepatic mRNA expression compared with male CPEE offspring. In the prefrontal cortex, IRS-2 mRNA expression was increased in CPEE offspring compared with nutritional control. The data demonstrate that CPEE alters both central and peripheral expression of insulin and IGF signaling molecules at the mRNA level, which may be related to metabolic dysregulation in adult offspring. Furthermore, altered insulin and IGF signaling may be a mechanism of ethanol neurobehavioral teratogenicity.
Collapse
|
50
|
Lerman G, Sharon M, Leibowitz-Amit R, Sidi Y, Avni D. The crosstalk between IL-22 signaling and miR-197 in human keratinocytes. PLoS One 2014; 9:e107467. [PMID: 25208211 PMCID: PMC4160297 DOI: 10.1371/journal.pone.0107467] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/16/2014] [Indexed: 12/13/2022] Open
Abstract
The interaction between the immune system and epithelial cells is tightly regulated. Aberrations of this balance may result in inflammatory diseases such as psoriasis, inflammatory bowel disease and rheumatoid arthritis. IL-22 is produced by Th17, Th22 and Th1 cells. Putative targets for IL-22 are cells in the skin, kidney, digestive and respiratory systems. The highest expression of IL-22 receptor is found in the skin. IL-22 plays an important role in the pathogenesis of T cell-mediated inflammatory diseases such as psoriasis, inflammatory bowel disease and rheumatoid arthritis. Recently, we found that miR-197 is down regulated in psoriatic lesions. In the present work we show that miR-197 over expression inhibits keratinocytes proliferation induced by IL-22 and keratinocytes migration. In addition, we found that IL-22 activates miR-197 expression through the binding of phosphorylated STAT3 to sequences in the putative promoter of miR-197. Finally we found that IL-22 receptor subunit IL22RA1 is a direct target of miR-197. Hence, we identified a novel feedback loop controlling IL-22 signaling, in which IL-22 induces miR-197, which in turn, negatively regulates IL-22 receptor and attenuates the biological outcome of such signaling. Regulation of this pathway may be important in inflammatory skin disorders such a psoriasis and in wound healing.
Collapse
Affiliation(s)
- Galya Lerman
- Laboratory of Molecular Cell Biology, Center for Cancer Research and Department of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
| | - Moran Sharon
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Raya Leibowitz-Amit
- Laboratory of Molecular Cell Biology, Center for Cancer Research and Department of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
- Institute of Oncology, Sheba Medical Center, Tel Hashomer, Israel
| | - Yechezkel Sidi
- Laboratory of Molecular Cell Biology, Center for Cancer Research and Department of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dror Avni
- Laboratory of Molecular Cell Biology, Center for Cancer Research and Department of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
| |
Collapse
|