Research Faculty Bio

Xiang-der (Martin) Liu, M.D.
Assistant Professor, Internal MedicineMartin Liu, M.D.
Cardiovascular Biology and Biomechanics Laboratory
Division of Cardiovascular Medicine

Academic office:
982265 Nebraska Medical Center
Omaha, NE 68198-2265
Phone (402)559-5151
Fax (402)559-8355


1981-1986 The 4th Military Medical University, Xi’an, China M.D.

1992-1995 The 4th Military Medical University, Xi’an, China Ph.D.

Biographical Sketch:

1986-1989 Resident, Internal Med., The General Hospital Shenyang Military District, China              

1989-1992 Fellow, Pulmonary, Internal Med., The General Hosp. Shenyang Military District, China

1999-2003 Researcher, Pulmonary, Critical Care and Sleep Medicine, Internal Med.,University of Nebraska Medical Center, Omaha, Nebraska

2003-2006 Instructor, Pulmonary, Critical Care and Sleep Medicine, Internal Med., UNMC    

2006 - 2016 Assist. Prof., Pulmonary, Critical Care, Sleep and Allergy Medicine, Internal Med., UNMC

2016--  Assist. Prof., Cardiovascular Medicine, Internal Med., UNMC

I graduated from The Fourth Military Medical University, Xi’an, China. After completing Residency and Fellowship of internal medicine in China, I had been trained in lung cell biology as a postdoctoral researcher at Dr. Stephen Rennard’s laboratory, University of Nebraska Medical Center. I am specialized in cell culture and cell biology study, especially, three-dimensional culture of variety kinds of cells including mesenchymal cells, endothelial cells etc, and in vitro cellular and molecular biological studies on chronic inflammatory diseases, tissue injury and repair. Have published over 100 peer-reviewed papers, and over 20 papers as first or senior author.

Research Expertise:

Cell biology, inflammatory tissue injury and repair.

Selected Publications:

  1. Liu X, QH Fang, HJ Kim. Preclinical studies of mesenchymal stem cell administration in chronic obstructive pulmonary disease (COPD): A systematic review and meta-analysis. PLOS One. 2016 Jun 9; 11(6): e0157099.  
  2. Ikari J, Smith LM, Nelson AJ, Iwasawa S, Gunji Y, Farid M, Wang X, Basma H, Feghali-Bostwick C, Liu X, DeMeo DL, Rennard SI. Effect of culture conditions on microRNA expression in primary adult control and COPD lung fibroblasts in vitro. In Vitro Cell Dev Biol Anim. 2015; 51(4): 390-9.  
  3. Liu X, Nelson A, Wang X, Farid M, Gunji Y, Ikari J, Iwasawa S, Basma H, Feghali-Bostwick C, Rennard SI. Vitamin D modulates PGE2 synthesis and degradation in human lung fibroblasts. Am J Respir Cell Mol Biol. 2014; 50: 40-50