title: Rapid and Short-term Extracellular Matrix-mediated In Vitro Culturing of Tumor and Nontumor Human Primary Prostate Cells From Fresh Radical Prostatectomy Tissue.
abstract: OBJECTIVE
  To culture prostate cells from fresh biopsy core samples from radical prostatectomy (RP) tissue. Further, given the genetic heterogeneity of prostate cells, the ability to culture single cells from primary prostate tissue may be of importance toward enabling single-cell characterization of primary prostate tissue via molecular and cellular phenotypic biomarkers.
  
  
  METHODS
  A total of 260 consecutive tissue samples from RPs were collected between October 2014 and January 2016, transported at 4°C in serum-free media to an off-site central laboratory, dissociated, and cultured. A culture protocol, including a proprietary extracellular matrix formulation (ECMf), was developed that supports rapid and short-term single-cell culture of primary human prostate cells derived from fresh RP samples.
  
  
  RESULTS
  A total of 251 samples, derived from RP samples, yielded primary human tumor and nontumor prostate cells. Cultured cells on ECMf exhibit (1) survival after transport from the operating room to the off-site centralized laboratory, (2) robust (>80%) adhesion and survival, and (3) expression of different cell-type-specific markers. Cells derived from samples of increasing Gleason score exhibited a greater number of focal adhesions and more focal adhesion activation as measured by phospho-focal adhesion kinase (Y397) immunofluorescence when patient-derived cells were cultured on ECMf. Increased Ki67 immunofluorescence levels were observed in cells derived from cancerous RP tissue when compared to noncancerous RP tissue.
  
  
  CONCLUSIONS
  By utilizing a unique and defined extracellular matrix protein formulation, tumor and nontumor cells derived from primary human prostate tissue can be rapidly cultured and analyzed within 72 hours after harvesting from RP tissue.
authors.affiliation: Cellanyx Diagnostics, Beverly, MA. Electronic address: ashok@cellanyx.com.
authors.forename: Ashok C
authors.initials: AC
authors.lastname: Chander
authors.affiliation: Cellanyx Diagnostics, Beverly, MA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Manak
authors.affiliation: Cellanyx Diagnostics, Beverly, MA.
authors.forename: Jonathan S
authors.initials: JS
authors.lastname: Varsanik
authors.affiliation: Cellanyx Diagnostics, Beverly, MA.
authors.forename: Brad J
authors.initials: BJ
authors.lastname: Hogan
authors.affiliation: Urology Department, Central Florida Cancer Institute, Davenport, FL.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Mouraviev
authors.affiliation: Department of Urology, Tufts University School of Medicine, Boston; Andover Urology, Andover, MA.
authors.forename: Stephen M
authors.initials: SM
authors.lastname: Zappala
authors.affiliation: Department of Urology, Tufts University School of Medicine, Boston.
authors.forename: Grannum R
authors.initials: GR
authors.lastname: Sant
authors.affiliation: Department of Urology, Crouse Hospital, Syracuse, NY.
authors.forename: David M
authors.initials: DM
authors.lastname: Albala
mesh_terms: D001707:Biopsy, Needle; D002448:Cell Adhesion; D018929:Cell Culture Techniques; D048708:Cell Growth Processes; D002470:Cell Survival; D004847:Epithelial Cells / Q000473:pathology / Q000502:physiology*; D005109:Extracellular Matrix; D006801:Humans; D008297:Male; D011468:Prostatectomy; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000601:surgery; D017154:Stromal Cells / Q000473:pathology / Q000502:physiology*; D013997:Time Factors; D014407:Tumor Cells, Cultured / Q000502:physiology*