|mSMRT-qPCR : Robust, Sensitive, Scalable microRNA Quantification|
Existing methods for miRNA quantification rely on sequence-dependent probes or chemically modified primers for optimal specificity and often require RNA isolation that is time-consuming labour-intensive and which increase sample variability We have developed a high performance approach for multiplexed detection of mature miRNAs termed modified stem-loop mediated reverse transcription quantitative PCR (mSMRT-qPCR).
|Transfecting Small Molecules, Peptides|
Van Q., Atze K., Litzenberger D., Ackerstaff J.T., Strübing Y., Yolcu D., Franke S.,Mobbs K.J. and Kazinski M.
The Nucleofector® Technology enables efficient and reproducible transfection of primary cells and cell lines at throughputs of up to 96 samples per run. Nucleofection® now extends its range of application to deliver small molecules substrates and protein substrates such as peptides, proteins and antibodyconjugates.
|SuperNatural: A Database of Available Natural Compounds|
Melanie Füllbeck, Mathias Dunkel and Robert Preissner
The majority of marketed drugs are natural compounds or derivatives thereof. The compounds availability is often unclear. Therefore we have compiled a database of ~50,000 natural compounds. Starting point for in silico screenings are about 2,500 well-known, classified natural compounds or imported molecules. Possible medical applications can be detected and about three million conformers computed to account for the flexibility during usage of the 3D-superposition algorithm.
|MicroRNA let-7b targets Akt-1: possible implication for skeletal muscle atrophy in diabetic rats|
Sousa, TA*; Mitsuo, K**; Paula-Gomes, S*; Silva, VAO*; Tragante, V*; Zanon, NM*; Wang M**; Kettelhut, IC*; Natarajan R**; De Lucca, FL*
In diabetic animals there is marked muscle atrophy, but the molecular mechanisms underlying muscle wasting are still unclear. Our in silico analysis and the inverse correlation between let-7b and Akt1 expression in soleus of diabetic animals indicated Akt1 as a potential let-7b target. The assays of luciferase and inhibition of endogenous expression of Akt1 with mimic let-7b were used to validate Akt1 as a direct target of let-7b.
|Microsphere Approach to Gene Silencing|
J. M. Cardenas-Maestre, A. Seth, R. M. Sanchez-Martin
The design of a new generation of bio-compatible polymeric particles (by introduction of polycationic chains as terminal groups) that can be employed as transfecting agents.
|Argonaute 1 regulates germ cell division and oocyte determination in Drosophila melanogaster|
Mohd Ghows Mohd Azzam and Ji-Long Liu
We find that Ago1 protein is be enriched in the oocytes and also distributed in the cytoplasm of follicle cells. Using mitotic clonal analysis, we analyze multiple ago1 mutant alleles. Here, we find that the oocyte do not form in many mutant clones and they only have 8 nurse cells. These results indicate that the level of Ago1 affects the number of cystoblast divisions and oocyte determination.
|NEW TECHNOLOGIES FOR FFPE SAMPLES: Improved RNA Isolation and novel cDNA priming for qPCR and for universal mRNA amplification|
G Krupp1; R Jaggi2; D Englert3, DJ Wilson3, S Laken3, S, ES Quabius4
Improved FFPE RNA isolation, novel TR priming for complete recovery of FFPE mRNA fragments. Differential expression defines Scores for tumor classification: comparing fresh-frozen with FFPE. Novel flow-through Ziplex microarray platform demonstrates MAQC performance level of data obtained with FFPE samples.
|FOXP3 Gene Expression in Multiple Sclerosis patients before and after Mesenchymal Stem Cell therapy|
Maryam Mohajeri, Mandana Mohyeddin Bonab, Behrooz Nikbin, Ali Farazmand
Multiple Sclerosis (MS) is a chronic inflammatory demyelinating disorder of the CNS. No successful treatment for MS, but one therapeutic strategy in research is the use of bone marrow-derived mesenchymal stem cells (MSC). We studied a group of MS patients who underwented MSCs, assayed for expression of a transcription factor, FOXP3, as a specific marker of MS amelioration in peripheral blood. qRT-PCR on PBMCs showed higher FoxP3 levels.
|miR-21 upregulation and miR-128a downregulation in human glioblastomas|
P. Costa1,2, A. Cardoso1, L. Almeida1,3, M.C. Pedroso de Lima1,2, P. Canoll4, J. Bruce5
miRNA deregulation is an important hallmark on cancer development and progression. This work shows that miR-21 is overexpressed is human glioblastoma samples and cell lines, whereas miR-128a is highly downregulated on these tumours. miRNA modulation using antisense oligonucleotides and/or miRNA precursor molecules decreased tumor cell viability. Thus, targeting deregulated miRNAs may constitute a complementary/alternative approach on the treatment of glioblastomas and other miRNA-related maligna