echanisms other 14 / 18 TNIP1 Regulates the Proliferation of Keratinocytes than regulating keratinocyte proliferation. The increased production of proinflammatory cytokines and chemokines by hyperproliferative epidermal cells may also contribute to this complicated situation. Our animal study had one limitation that should be noted. TNIP1 is widely expressed throughout the body, and thus other cell types at the injection site could have sensed TNIP1 downregulation. Thus, other cell types could have contributed to the scaling hyperplasia. In fact, Callahan’s study showed that TNIP1 downregulation in dendritic cells 
led to epidermal hyperplasia. Nevertheless, we confirmed that TNIP1 downregulation in mice skin led to exaggerated psoriasis-like dermatitis. However, to clarify the mechanism of TNIP1 in the pathogenesis of psoriasis, it is necessary to extensively explore the functions of TNIP1 in vivo. Taken together, our results show that TNIP1 inhibits keratinocyte proliferation, which is partially mediated by the inhibition of Erk1/2 and C/EBP. Moreover, downregulation of TNIP1 in the skin leads to keratinocyte hyperproliferation in mice. Thus, TNIP1 may be a potential therapeutic target for psoriasis. ~~ Global climate change is reducing the reliability of rainfall, the availability of soil-water, and consequently, limiting plant production. Potato ranks as the fourth most predominant non-grain food crop in the world. Due to their shallow root system, which limits water extraction from soil, potato plants are sensitive to drought stress. Leaf size, photosynthesis rate, tuber number, yield and quality were all severely limited when grown under a drought stress condition. Therefore, in order to breed new potato varieties with improved drought resistance, the molecular mechanisms governing water use, tuber starch synthesis and accumulation under drought conditions must be defined. In higher plants, drought stress can induce a wide range of physiological and biochemical responses regulated by genes encoding functional and/or regulatory proteins, to maintain a normal homeostasis and avoid wilting death. Fast and efficient recovery from water stress will allow agricultural crops to adapt to the changes of meteorological conditions and maximize their growth and production during drought stress. In a diploid potato population, 47 quantitative trait loci were identified, out of them, 28 were drought-specific, and 17 were specifically expressed during recovery from drought stress. Recently, the published potato genome and transcriptome with corresponding gene structure, location, and functional annotation provide powerful resources for the understanding of the complex responses to drought stress in potato. However, data currently available on transcriptomic changes PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/19697363 upon rehydration in potato is insufficient, and the precise pathways involved in drought responses and recovery from water deficit still remain to be deduced. Transcriptome sequencing technologies provide PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/19697345 a framework dataset for researches related to construction of transcriptome map, determination of metabolic pathways, LOXO 101 supplier clarification of gene expression patterns, and mining of new genes. To explore the molecular regulation mechanisms of plants in response to different stresses, transcriptome analysis has been performed on a variety of crops, including sunflower , grape , maize and sorghum . Data reported in these studies have provided information on the networks of regulatory and funct