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Research

Dr. Deliang Guo's Lab


Dr. Delang Guo, PhD
Associate Professor

Tzagournis Medical Research Facility 
Room 544 A
420 W. 12th Ave.
Columbus, OH 43210

Phone:  614-366-3774
Lab Ph: 614-366-3770
Fax:      614-247-1877
Email: deliang.guo@osumc.edu

 

Research Area

Understanding the molecular mechanism of tumor cells manipulating glucose, glutamine and lipid metabolism and the crosstalk with oncogenic signaling, to define the key targets to treat cancer.

Research Summary

   Metabolism reprogramming is the hallmark of cancer. Addictive glycolysis and exacerbated lipogenesis provide the advantage for tumor malignant growth. Recently, glutamine metabolism has also been revealed to contribute carbon for TCA cycle and lipid synthesis. However, how cancer cells balance energy production and macromolecular synthesis through orchestra glucose, glutamine metabolism and lipogenesis is unclear. Dr. Guo's lab recently revealed SREBP-1, a master transcription factor to control fatty acid synthesis pathway, mediates PI3K/Akt signaling-drived glucose and Myc-drived glutamine metabolism to lipid synthesis, further demonstrate SREBP-1 is a good molecular target to treat cancer. Recently, they further discovered cancer cells import a large amount of cholesterol to support its malignant growth through upregulation of LDLR, and this process is directly regulated by PI3K/Akt/SREBP-1 pathway. Dr. Guo's lab's long term goal is to determine the key molecular targets in cancer metabolism and translate it to clinic.

The lab's detailed research interests are to:

1) Investigate the molecular link between oncogenic signaling PI3K/Akt and Ras/MEK/ERK signaling with cancer metabolism.

2) Develop the strategy via targeting SREBP-1 to treat cancer.

3) Dissect cholesterol metabolism and its intersection with oncogenic signaling.

4) Delineate the relationship between autophagy and cancer metabolism, and determine the metabolomics profile in cancer.

5) Define lipid droplet role and its dynamic regulation in cancer and reveal its relationship with autophagy and cancer metabolism. 
 

Publications