- Dow 533
- Associate Professor, Biological Sciences
- PhD, Weizmann Institute of Science, Israel, 2003
Diabetes is caused by either the loss of the insulin producing beta cells in the pancreas, leading to a deficiency of insulin (type 1 diabetes), or insulin resistance, reduced insulin sensitivity, and reduced insulin secretion (type 2 diabetes). In both types of diabetes, the patients develop serious secondary complications, such as microvascular complications, oxidative stress and endothelial dysfunction, cardiovascular disease, and kidney failure.
MicroRNAs (miRNAs) are newly discovered, 21-24nt in size, non-coding RNAs. miRNAs negatively regulate the expression of protein-coding genes by binding to the 3'-untranslated region (3'-UTR) of specific targeted gene transcripts (mRNAs). Each miRNA regulates the expression of hundreds of target genes. One mRNA can be targeted by multiple miRNAs. An emerging body of evidence suggests that miRNAs play a central role in many physiological processes and human diseases, such as cancer, neurodegeneration, cardiovascular disease, and diabetes.
Our laboratory is focused on the function of miRNAs in control of insulin production and secretion in pancreatic beta cells. We have successfully developed a high-throughput miRNA array technology for the study of miRNAs in human and mouse tissues. Using this technology, we have screened out many glucose-regulated miRNAs in beta cells and identified the miRNAs that regulates insulin production and secretion. We believe that the understanding of the fine-tuning interplay between miRNAs and their target genes will be beneficial in developing new approaches to restore insulin production and secretion from beta cells. In addition, we are interested in identification and characterization of type-2 diabetes-associated miRNAs by high-throughput profiling of miRNA expressions using a diabetic mouse model. The ultimate objective is to identify key miRNAs as diagnostic biomarkers for diabetes and develop novel miRNA drugs for the therapeutic treatment of diabetes.
One Accelerated MS Graduate Student in MicroRNAs and Diabetes is Needed to Do Research on Role of MicroRNAs in Diabetes. For Details Please Check: Accelerated MS Program. Interested Students Please Contact Dr. Xiaoqing Tang.
- Insulin Production, Secretion, and Signaling
- microRNA and Human Diseases (Diabetes, Cancers, etc.)
- microRNA Technologies for Plants and Animals: Small Tandem Target Mimic (STTM) and MicroRNA Array
- Mao Y, Schoenborn J, Wang Z, Chen X, Mohan R, Zhang S, Tang XH, Arunagiri A, Arvan P and Tang X (2022) Overexpression of microRNA-30d in pancreatic beta-cells progressively impairs beta-cell identity. Sci Rep. 12(1):11969. Link
- Marinelli I, Parekh V, Fletcher P, Thompson B, Ren J, Tang X, Saunders TL, Ha J, Sherman A, Bertram R, Satin LS. (2022) Slow oscillations persist in pancreatic beta cells lacking phosphofructokinase M. Biophys J. 2022 Mar 1;121(5):692-704.Link
- Wang Z, Mohan R, Chen X, Matson K, Waugh J, Mao Y, Zhang S, Li W, Tang X, Satin LS, Tang X. (2021) microRNA-483 Protects Pancreatic β-Cells by Targeting ALDH1A3. Endocrinology. 162(5) PubMed Central PMCID: PMC7951052. Link
- Liu W, Mao Y, Schoenborn J, Wang Z, Tang G, Tang X (2019) Whole blueberry protects pancreatic beta-cells in diet-induced obese mouse. Nutrition & metabolism 16 (1), 1-9. Link
- Peng T, Qiao M, Liu H, Teotia S, Zhang Z, Zhao Y, Wang B, Zhao D, Shi L, Zhang C, Le B, Rogers K, Gunasekara C, Duan H, Gu Y, Tian L, Nie J, Qi J, Meng F, Huang L, Chen Q, Wang Z, Tang J, Tang X, Wei H, Chen X, Zhao Q, Tang G. (2018) A Resource for Inactivation of microRNAs Using Short Tandem Target Mimic Technology in Model and Crop Plants. Mol Plant. 11(11): 1400-1417. Link
- Shi L, Tang X, Tang G (2016) GUIDE-seq to Detect Genome-wide Double-Stranded Breaks in Plants. Trends in Plant Science 21(10): 815-818. Link
- Teotia S, Singh D, Tang X, Guiliang Tang G (2016) Essential RNA-Based Technologies and Their Applications in Plant Functional Genomics. Trends in Biotechnology 34 (2): 106-123. Link
- Wang X, Chen L, Jin H, Wang S, Zhang Y, Tang X, Tang G (2016) Screening miRNAs for early diagnosis of colorectal cancer by small RNA deep sequencing and evaluation in a Chinese patient population. OncoTargets and Therapy. 9: 1159-1166. Link
- Mohan R, Mao Y, Zhang S, Zhang YW, Xu CR, Gradwohl G, Tang X. (2015) Differentially Expressed MicroRNA-483 Confers Distinct Functions in Pancreatic β- and α-Cells. J Biol Chem. 290(32):19955-19966. Link
- Mao Y, Mohan R, Zhang S, Tang X. (2013) MicroRNAs as pharmacological targets in diabetes. Pharmacol Res. 75:37-47. Link
- Tang G* and Tang X. (2013) Short Tandem Target Mimic: A Long Journey to the Engineered Molecular Landmine for Selective Destruction/Blockage of microRNAs in Plants and Animals. Journal of Genetics and Genomics. 40 (6): 291–296. Link
- Tang G, Yan J, Gu Y, Qiao M, Fan R, Mao Y, Tang X. (2012) Construction of short tandem target mimic (STTM) to block the functions of plant and animal microRNAs. Methods 58(2):118-125. Link
- Zhao X, Mohan R, Ozcan S, Tang X. (2012) MicroRNA-30d Induces Insulin Transcription Factor MafA and Insulin Production by Targeting Mitogen-activated Protein 4 Kinase 4 (MAP4K4) in Pancreatic β-Cells. J Biol Chem. 287(37):31155-31164. Link
- Tang, X, Muniappan, L, Tang, G, and Ozcan, S. (2009) Identification of glucose-regulated miRNAs from pancreatic beta cells reveals a role for miR-30d in insulin transcription. RNA 15:287-293. Link
- Tang, X, Tang, G, and Özcan S. (2008) Role of microRNAs in diabetes. BBA-Gene Regulatory Mechanisms. 1779: 697-701. Link
- Tang, X, Gal J, Zhang X, Zhu H. and Tang G. (2007) A simple array platform for microRNA analysis and its application in mouse tissues. RNA 13,1803-1822. Link
- Tang, X, Guilherme A, Chakladar A, Powelka AM, Konda S, Virbasius JV, Nicoloro SM, Straubhaar J, Czech MP. (2006) An RNA interference-based screen identifies MAP4K4/NIK as a negative regulator of PPAR gamma, adipogenesis, and insulin-responsive hexose transport. Proc Natl Acad Sci U S A. 103, 2087-2092. Link
- Powelka, AM, Seth, A, Virbasius, JV, Kiskinis, E, Nicoloro, SM, Guilherme, A, Tang, X, Straubhaar, J, Cherniack, AD, Parker, MG, Czech, MP (2006) Suppression of oxidative metabolism and mitochondrial biogenesis by the transcriptional corepressor RIP140 in mouse adipocytes. J Clin Invest. 116,125-136. Link
- Tang, X, Powelka, AM, Soriano, NA, Czech, MP and Guilherme A. (2005) PTEN, but not SHIP2, suppresses insulin signaling through the phosphatidylinositol 3-kinase/Akt pathway in 3T3-L1 Adipocytes. J Biol Chem. 280,22523-22529. Link
- BL4800/5800-Molecular Diagnostics
- BL4840-Molecular Biology Techniques