Summary of Study ST000089

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000079. The data can be accessed directly via it's Project DOI: 10.21228/M82S3K This work is supported by NIH grant, U2C- DK119886.


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Study IDST000089
Study TitleA study of changes in lipid metabolism of ovarian cancer cells co-cultured with adipocytes: UHPLC-QTOF MS analysis
Study Typetimecourse study
Study SummaryThis West Coast Metabolomics Center pilot and feasibility project was granted to Ernst Lengyel  (University of Chicago). The biology of ovarian cancer (OvCa) is clearly distinct from that of most epithelial tumors, in that hematogenous metastases are rare, and ovarian tumors remain confined to the peritoneal cavity. The omentum, a large pad of fat tissue (20x13x3cm) covering the bowel, is the most common site of OvCa metastasis. It consists primarily of adipocytes, which become the principal microenvironment for the OvCa cells. The underlying hypothesis for this application is that, in the presence of adipocytes, the metabolism of OvCa cells is reprogramed and shifts towards lipid utilization, which provides energy that facilitates tumor growth and metastasis. Preliminary results suggest that primary human omental adipocytes secrete cytokines which promote the metastasis of OvCa cells to the omentum and their subsequent invasion. Once metastasis has occurred, OvCa cells induce lipolysis in omental adipocytes, and use the energy derived from these lipids to proliferate. To study the metabolic changes in the tumor microenvironment we have established a 3D organotypic culture of the human omentum using primary human cells established from patient tissue. Metabolic studies will be performed on adipocytes and OvCa cells individually, on conditioned media and on adipocytes and OvCa cells co-cultured in our 3D model, with the goal of arriving at a comprehensive analysis of primary metabolites and lipids in the tumor microenvironment. In the current investigation, untargeted analysis of primary metabolites and complex lipids were conducted on adipocytes and OvCa cells individually, on conditioned media and on adipocytes and OvCa cells co-cultured in our 3D model. Analysis of oxylipins was conducted on conditioned media. To gain better understanding of the dynamic regulation of metabolic pathways we will also perform metabolic flux analysis using labeled cells (13C-glucose, 13C-glutamine) in the 3D culture model. The primary objective of this study is to gain insight into the dynamic interactions between OvCa cells and human adipocytes with the anticipation of elucidating targets of therapeutic intervention. 
University of California, Davis
DepartmentGenome and Biomedical Sciences Facility
LaboratoryWCMC Metabolomics Core
Last NameFiehn
First NameOliver
Address1315 Genome and Biomedical Sciences Facility 451 Health Sciences Drive Davis, CA 95616
Phone(530) 754-8258
Submit Date2014-06-11
Num Groups2
Total Subjects14
Study CommentsLipidomics profiles for study
For the co-culture Human Adipocytes were grown in presence of SKOV3ip1 ovarian cancer cells
For control samples the adipocytes were grown in the absence of SKOV3ip1 ovarian cancer cells
Exp design 2 x 14
Final result is obtained by merging results from both files and applying dilution factor.
Reason was high TG concentration in positive mode only
Raw Data File (Positive Mode_TGs) (dilution1)
Raw Data File (Positive Mode_Non-TGs) (dilution2)
Raw Data AvailableYes
Raw Data File Type(s)d
Uploaded File Size14 G
Analysis Type DetailLC-MS
Release Date2014-09-18
Release Version1
Oliver Fiehn Oliver Fiehn application/zip

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Combined analysis:

Analysis ID AN000141 AN000142
Analysis type MS MS
Chromatography type Reversed phase Reversed phase
Chromatography system Waters Acquity Waters Acquity
Column Waters Acquity CSH C18 (100 x 2.1mm,1.7um) Waters Acquity CSH C18 (100 x 2.1mm,1.7um)
MS instrument type QTOF QTOF
MS instrument name Agilent 6530 QTOF Agilent 6550 QTOF
Units Peak area Peak area