Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

SRL1 encodes a putative GPI-anchored protein and modulates rice leaf rolling by regulating the differentiation of bulliform cells

ABSTRACT: To identify genes involved in the differentiation of bulliform cells, genome-wide analysis of gene expression profiles was performed in cells to be differentiated into bulliform cells in srl1-1 but epidermal cells in Nip. The seedlings of Nip and srl1-1 were fixed at 5 DAG (day after germination), and cells to be differentiated into bulliform cells in srl1-1 but epidermal cells in Nip were isolated by LCM (laser capture microdissection). Then total RNA were extracted from two independent biological replicates.

ORGANISM(S): Oryza sativa

SUBMITTER: Jingjing Xiang

PROVIDER: E-GEOD-37140 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Semi-rolled leaf1 encodes a putative glycosylphosphatidylinositol-anchored protein and modulates rice leaf rolling by regulating the formation of bulliform cells.

Xiang Jing-Jing JJ Zhang Guang-Heng GH Qian Qian Q Xue Hong-Wei HW

Plant physiology 20120619 4

Leaf rolling is an important agronomic trait in rice (Oryza sativa) breeding and moderate leaf rolling maintains the erectness of leaves and minimizes shadowing between leaves, leading to improved photosynthetic efficiency and grain yields. Although a few rolled-leaf mutants have been identified and some genes controlling leaf rolling have been isolated, the molecular mechanisms of leaf rolling still need to be elucidated. Here we report the isolation and characterization of SEMI-ROLLED LEAF1 (S ...[more]

PMID: 22715111

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Project description:Purpose: We aimed to investigate the effect of several anti-leukemia drugs in combination with decitabine (DAC) on the proliferation of myeloid leukemia cells in vitro and in vivo, to select the most efficient combination group and explore associated mechanisms of these combination therapies. Experimental Design: After comparing with five anti-leukemia drugs in several different kinds of cell lines, the combination effect of idarubicin (IDA) with DAC was best. In vivo, by using microPET, TUNEL, and transmission electron microscopy, the inhibitory effects obtained by sequentially combining DAC with IDA, evidenced by evaluating tumor cell proliferation and cell apoptosis. Molecular studies were conducted using gene chip, which was used to explore associated pathways, and real-time quantitative reverse transcription-PCR, western blot and immunohistochemistry (IHC), used to assess regulation of Wnt/β-catenin pathway. Results: The sequential combination of DAC and IDA showed synergistic induction of cell death in U937, HEL, SKM-1 and cells isolated from AML patients. Importantly, the inhibition of tumor growth in the sequential combination group was found to be significantly higher than that of single drug group or control group in vivo. Moreover, sequential treatment with DAC and IDA induced apoptosis and depression of the Wnt/β-catenin pathway in both culture and animal studies. Conclusions: Our findings showed that sequentially combining decitabine with idarubicin had a synergistic anti-leukemia effect. These findings were attributed to demethylation of Wnt pathway inhibitors and downregulation of Wnt pathway nuclear targets observed in vitro and in vivo. After comparing with five anti-leukemia drugs in several different kinds of cell lines, the combination effect of idarubicin (IDA) with DAC was best. In vivo, by using microPET, TUNEL, and transmission electron microscopy, the inhibitory effects obtained by sequentially combining DAC with IDA, evidenced by evaluating tumor cell proliferation and cell apoptosis. Molecular studies were conducted using gene chip, which was used to explore associated pathways, and real-time quantitative reverse transcription-PCR, western blot and immunohistochemistry (IHC), used to assess regulation of Wnt/β-catenin pathway.

Dataset Information

SRL1 encodes a putative GPI-anchored protein and modulates rice leaf rolling by regulating the differentiation of bulliform cells

Publications

Semi-rolled leaf1 encodes a putative glycosylphosphatidylinositol-anchored protein and modulates rice leaf rolling by regulating the formation of bulliform cells.

Similar Datasets

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