Articles by Christina Liu in JoVE
An Approach to Enhance Alignment and Myelination of Dorsal Root Ganglion Neurons Chun Liu1, Christina Chan1,2 1Department of Chemical Engineering and Materials Science, Michigan State University, 2Department of Biochemistry and Molecular Biology, Michigan State University This protocol describes the isolation of dorsal root ganglion (DRG) neurons isolated from rats and the culture of DRG neurons on a static pre-stretched cell culture system to enhance axon alignment, with subsequent co-culture of Schwann Cells (SCs) to promote myelination.
Retrospective MicroRNA Sequencing: Complementary DNA Library Preparation Protocol Using Formalin-fixed Paraffin-embedded RNA Specimens Olivier Loudig1,2,3, Christina Liu1,2, Thomas Rohan3, Iddo Z. Ben-Dov4 1Department of Research, Hackensack University Medical Center, 2Department of Medical Sciences, Seton Hall University, 3Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 4Department of Nephrology and Hypertension, Hadassah - Hebrew University Medical Center Formalin-fixed paraffin-embedded specimens represent a valuable source of molecular biomarkers of human diseases. Here we present a laboratory-based cDNA library preparation protocol, initially designed with fresh frozen RNA, and optimized for the analysis of archived microRNAs from tissues stored up to 35 years.
Other articles by Christina Liu on PubMed
Evaluation and Adaptation of a Laboratory-Based CDNA Library Preparation Protocol for Retrospective Sequencing of Archived MicroRNAs from Up to 35-Year-Old Clinical FFPE Specimens International Journal of Molecular Sciences. Mar, 2017 | Pubmed ID: 28335433 Formalin-fixed paraffin-embedded (FFPE) specimens, when used in conjunction with patient clinical data history, represent an invaluable resource for molecular studies of cancer. Even though nucleic acids extracted from archived FFPE tissues are degraded, their molecular analysis has become possible. In this study, we optimized a laboratory-based next-generation sequencing barcoded cDNA library preparation protocol for analysis of small RNAs recovered from archived FFPE tissues. Using matched fresh and FFPE specimens, we evaluated the robustness and reproducibility of our optimized approach, as well as its applicability to archived clinical specimens stored for up to 35 years. We then evaluated this cDNA library preparation protocol by performing a miRNA expression analysis of archived breast ductal carcinoma in situ (DCIS) specimens, selected for their relation to the risk of subsequent breast cancer development and obtained from six different institutions. Our analyses identified six miRNAs (miR-29a, miR-221, miR-375, miR-184, miR-363, miR-455-5p) differentially expressed between DCIS lesions from women who subsequently developed an invasive breast cancer (cases) and women who did not develop invasive breast cancer within the same time interval (control). Our thorough evaluation and application of this laboratory-based miRNA sequencing analysis indicates that the preparation of small RNA cDNA libraries can reliably be performed on older, archived, clinically-classified specimens.