PT  - JOURNAL ARTICLE
AU  - Mojica, Wilfrido D
AU  - Hou, Tieying
AU  - Sykes, Don
AU  - Dey-Rao, Rama
TI  - Front-end genomics: using an alternative approach for the recovery of high-quality DNA from core needle biopsies
AID  - 10.1136/jclinpath-2016-204061
DP  - 2017 Jun 01
TA  - Journal of Clinical Pathology
PG  - 488--493
VI  - 70
IP  - 6
4099  - http://jcp.bmj.com/content/70/6/488.short
4100  - http://jcp.bmj.com/content/70/6/488.full
SO  - J Clin Pathol2017 Jun 01; 70
AB  - Aims Determine whether a simple prewash step will provide adequate amounts of high-quality DNA from core needle biopsies for molecular sequencing studies.Methods The quantitative and qualitative metrics of DNA recovered from core needle biopsies processed either by 1) formalin fixation and paraffin embedding (FFPE), 2) cells recovered after the core needle biopsy was washed, and 3) frozen sections of the core needle biopsy tissue were evaluated and compared to one another.Results Fairly equivalent amounts of DNA can be obtained from cells recovered from a prewash step relative to the FFPE and frozen section samples. The number of amplifiable DNA in the wash sample was greater than that from the FFPE samples. The average molecular size of DNA in the wash sample was greater than that of both the FFPE and frozen samples.Conclusions Although more starting material in terms of the number of cells was present in both the FFPE and frozen section samples than the wash samples, equivalent to better results were obtained from the latter with regard to quality. This approach may be a means to better aliquot the diminutive amounts of tissue associated with core needle biopsies, allowing dissociated cells to be dedicated for molecular studies while keeping the tissue intact for morphological studies.