Project description:We compared the global transcriptomic analysis of Desulfoluna spongiiphila strain AA1, an organohalide-respiring Desulfobacterota isolated from a marine sponge, with 2,6-dibromophenol or with sulfate as electron acceptor. The most significant difference of the transcriptomic analysis was the expression of one reductive dehalogenase gene cluster (rdh16), which was significantly upregulated with 2,6-dibromophenol.
Project description:Transcriptomic and proteomic response of the organohalide respiring bacterium Desulfoluna spongiiphila to growth with bromophenol as electron acceptor
Project description:Organohalide-respiring Dehalococcoidia bacteria are one of the few microorganisms capable of transforming chlorinated solvents to benign ethene in anoxic environments. The tceA gene found in these bacteria, coding the trichloroethene-dechlorinating RDase TceA, is frequently detected in contaminated groundwater but not recognized as a biomarker for vinyl chloride detoxification. Here, we demonstrate that the tceA-carrying Dehalococcoides mccartyi (Dhc) strains FL2 and 195 grow with VC as electron acceptor when sufficient vitamin B12 is provided. Global proteomic profiling confirmed the predominant TceA expression in VC-grown Dhc FL2 cells, providing a line of evidence for the implication of TceA in respiratory VC reductive dechlorination.
Project description:We found that estrogen cell signaling played a regulatory role in MM bone disease (MMBD), and the estrogen-responsive gene microtubule-associated serine/threonine kinase family member 4 (MAST4) was a critical factor. To determine what signalling pathways are affected by MAST4 in MM cells, we established CTR-KD and MAST4-KD ARD MM cell lines. Total RNA of each sample was extracted using TRIzol Reagent (Invitrogen). Next generation sequencing library preparations were constructed using NEBNext® Ultra™ RNA Library Prep Kit for Illumina (Vazyme, Cat No. NR603, China).RNA-seq was performed by GENEWIZ (Suzhou, China) on an Illumina Hiseq platform.
Project description:We found that a novel gene Gm614 mRNA significantly changed in plasma cells. Because of plasmablast-like, Mus musculus myeloma SP 2/0 cell line was selected to test the effect of Gm614 overexpression on plasmablast/plasma cells. Gm614 cDNA (General Biosystems, Anhui, China) was cloned into lentiviral vector LV201 (Fugene Corp., Guangzhou, China) to generate Gm614 protein. Gm614-expressing LV201 was then transfected into SP 2/0 cells, and stable transfectants were identified by drug selection (Puromycin, Sigma, 10 μg/ml). To identify the effect of Gm614 overexpression on gene expression, we determined mRNA profiles in Gm614-overexpressed and vector-transduced SP 2/0 cells by RNA-seq. RNA-seq was done with an Illumina HiSeq 2500 instrument at GENEWIZ, Suzhou, China.
Project description:Small organisms can be used as biomonitoring tools to assess chemicals in the environment. Chemical stressors are especially hard to assess and monitor when present as complex mixtures. Here, Daphnia magna were exposed for 24 hours to five different munitions constituents 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (2,4-DNT), 2,6-dinitrotoluene (2,6-DNT), trinitrobenzene (TNB), dinitrobenzene (DNB), or 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) as well as to 8 different munitions mixtures and ground water contaminated with munitions constituents. To better understand possible mixture effects, gene expression changes from all treatments were compared using high-density microarrays. While mixtures and ground water exposures had genes and gene functions in common with single chemical exposures, unique functions were also affected, which was consistent with the non-additivity of chemical effects in these mixtures. The study consisted of three different experiments: (1) exposure to a concentration corresponding to 70% of 1/10th of the LC50 value of six individual MCs (TNT, 2,4-DNT, 2,6-DNT, DNB, TNB, RDX) and a control; (2) exposure to eight different laboratory mixtures of the previously mentioned MCs. Different combinations of MCs including four mixtures (Mixtures 5, 6, 7 and 8) representative of field collected groundwater from LAAP (Louisiana Army Ammunition Plant) were created; and (3) exposure to MC-contaminated ground water field-collected from 3 different wells (85, 108, and 141) at the LAAP. All exposures were conducted for 24h.