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Downregulation of Aquaporin3 in Systemic Sclerosis Dermal Fibroblasts. 2017

Bahman Yousefi, and Mahdi Mahmoudi, and Abdolfattah Sarafnejad, and Elham Karimizadeh, and Elham Farhadi, and Ahmad Reza Jamshidi, and Hoda Kavosi, and Saeed Aslani, and Farhad Gharibdoost
Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Public Health and Institute of Public Health Research, Tehran University of Medical Sciences, Tehran, Iran.

Skin dryness and thickening are hallmarks of systemic sclerosis (SSc) disease. Aquaporins (AQPs) are plasma membrane proteins that transport glycerol and water, resulting in water retention and skin hydration. Expression of AQPs has been evaluated in human normal skin. However, expression of these proteins in SSc dermal fibroblasts has not yet been reported. The aim of this study was to assess the expression profile of AQPs in dermal fibroblasts of SSc patients. Fibroblast cells were extracted from SSc and healthy skin biopsies and characterized using fibroblast surface protein antibody. The SYBR Green Real-time PCR was used to evaluate the mRNA expression of AQP1, 3, 5, 7, 9, and 10 in dermal fibroblasts. Immunoblotting was performed to confirm the results of Real-time PCR. Our data demonstrated that only AQP1, AQP3, and AQP9 were expressed in human skin fibroblasts. Moreover, the expression of AQP3 mRNA and protein were significantly decreased in SSc dermal fibroblasts compare to healthy fibroblasts. AQP3, which involves in skin hydration and wound healing through water and glycerol transmission, is downregulated in SSc fibroblasts. Based on previous studies and our results, it seems that SSc manifestations like skin dryness, abnormal wound healing, and fibrotic lesions may be related to downregulation of AQP3 in SSc fibroblasts. Therefore, induction of AQP3 expression can be a potential treatment to relieve SSc skin thickness in the future.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002469 Cell Separation Techniques for separating distinct populations of cells. Cell Isolation,Cell Segregation,Isolation, Cell,Cell Isolations,Cell Segregations,Cell Separations,Isolations, Cell,Segregation, Cell,Segregations, Cell,Separation, Cell,Separations, Cell
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D012595 Scleroderma, Systemic A chronic multi-system disorder of CONNECTIVE TISSUE. It is characterized by SCLEROSIS in the SKIN, the LUNGS, the HEART, the GASTROINTESTINAL TRACT, the KIDNEYS, and the MUSCULOSKELETAL SYSTEM. Other important features include diseased small BLOOD VESSELS and AUTOANTIBODIES. The disorder is named for its most prominent feature (hard skin), and classified into subsets by the extent of skin thickening: LIMITED SCLERODERMA and DIFFUSE SCLERODERMA. Sclerosis, Systemic,Systemic Scleroderma,Systemic Sclerosis
D015415 Biomarkers Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc. Biochemical Markers,Biological Markers,Biomarker,Clinical Markers,Immunologic Markers,Laboratory Markers,Markers, Biochemical,Markers, Biological,Markers, Clinical,Markers, Immunologic,Markers, Laboratory,Markers, Serum,Markers, Surrogate,Markers, Viral,Serum Markers,Surrogate Markers,Viral Markers,Biochemical Marker,Biologic Marker,Biologic Markers,Clinical Marker,Immune Marker,Immune Markers,Immunologic Marker,Laboratory Marker,Marker, Biochemical,Marker, Biological,Marker, Clinical,Marker, Immunologic,Marker, Laboratory,Marker, Serum,Marker, Surrogate,Serum Marker,Surrogate End Point,Surrogate End Points,Surrogate Endpoint,Surrogate Endpoints,Surrogate Marker,Viral Marker,Biological Marker,End Point, Surrogate,End Points, Surrogate,Endpoint, Surrogate,Endpoints, Surrogate,Marker, Biologic,Marker, Immune,Marker, Viral,Markers, Biologic,Markers, Immune
D051400 Aquaporin 3 Aquaporin 3 is an aquaglyceroporin that is expressed in the KIDNEY COLLECTING DUCTS and is constitutively localized at the basolateral MEMBRANE. AQP3 Protein,Aquaporin 3 Protein

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