Life Sciences Research for Lifelong Health

Qifeng Zhang

Citizenship: Chinese British

Education: 
1. September 1994 - July 1998, PhD in analytical organic chemistry, 
Chinese Academy of Sciences (CAS), China 
2. September 1993 - July 1994, MSc in analytical organic chemistry, 
Graduate School of China Science and Technology University & CAS, China 
3. September 1989 - July 1993, BSc in Biology, Hunan Normal University, China 

Work Experience: 
1. February 2003 - June 2006, Research Fellow, 
City of Hope National Medical Center, California, USA

2. September 2002 - February 2003, Postdoctoral Research Associate, 
National Center for Natural Products Research, School of Pharmacy, University of Mississippi, USA 
3. October 2000 - September 2002, Staff Research Associate II, 
Center for Human Nutrition, School of Medicine, University of California at Los Angeles, California, USA 
4. September 1998 - September 2000, Postdoctoral Researcher 
Beijing Institute of Pharmacology and Toxicology, Beijing, China 

Latest Publications

Autotaxin-lysophosphatidic acid receptor signalling regulates hepatitis C virus replication.
Farquhar MJ, Humphreys IS, Rudge SA, Wilson GK, Bhattacharya B, Ciaccia M, Hu K, Zhang Q, Mailly L, Reynolds GM, Aschcroft M, Balfe P, Baumert TF, Roessler S, Wakelam MJ, McKeating JA

Chronic hepatitis C is a global health problem with an estimated 170 million HCV infected individuals at risk of progressive liver disease and hepatocellular carcinoma (HCC). Autotaxin (ATX) is a phospholipase with diverse roles in physiological and pathological processes including inflammation and oncogenesis. Clinical studies have reported increased ATX expression in chronic hepatitis C, however, the pathways regulating ATX and its role in the viral life cycle are not well understood.

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Journal of hepatology, , 1600-0641, , 2017

PMID: 28126468

Phospholipase D activity couples plasma membrane endocytosis with retromer dependent recycling.
Thakur R, Panda A, Coessens E, Raj N, Yadav S, Balakrishnan S, Zhang Q, Georgiev P, Basak B, Pasricha R, Wakelam MJ, Ktistakis NT, Padinjat R

During illumination, the light sensitive plasma membrane (rhabdomere) of Drosophila photoreceptors undergoes turnover with consequent changes in size and composition. However the mechanism by which illumination is coupled to rhabdomere turnover remains unclear. We find that photoreceptors contain a light-dependent phospholipase D (PLD) activity. During illumination, loss of PLD resulted in an enhanced reduction in rhabdomere size, accumulation of Rab7 positive, rhodopsin1-containing vesicles (RLVs) in the cell body and reduced rhodopsin protein. These phenotypes were associated with reduced levels of phosphatidic acid, the product of PLD activity and were rescued by reconstitution with catalytically active PLD. In wild type photoreceptors, during illumination, enhanced PLD activity was sufficient to clear RLVs from the cell body by a process dependent on Arf1-GTP levels and retromer complex function. Thus, during illumination, PLD activity couples endocytosis of RLVs with their recycling to the plasma membrane thus maintaining plasma membrane size and composition.

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eLife, 5, 2050-084X, , 2016

PMID: 27848911

The Phospholipase D2 Knock Out Mouse Has Ectopic Purkinje Cells and Suffers from Early Adult-Onset Anosmia.
Vermeren MM, Zhang Q, Smethurst E, Segonds-Pichon A, Schrewe H, Wakelam MJ

Phospholipase D2 (PLD2) is an enzyme that produces phosphatidic acid (PA), a lipid messenger molecule involved in a number of cellular events including, through its membrane curvature properties, endocytosis. The PLD2 knock out (PLD2KO) mouse has been previously reported to be protected from insult in a model of Alzheimer's disease. We have further analysed a PLD2KO mouse using mass spectrophotometry of its lipids and found significant differences in PA species throughout its brain. We have examined the expression pattern of PLD2 which allowed us to define which region of the brain to analyse for defect, notably PLD2 was not detected in glial-rich regions. The expression pattern lead us to specifically examine the mitral cells of olfactory bulbs, the Cornus Amonis (CA) regions of the hippocampus and the Purkinje cells of the cerebellum. We find that the change to longer PA species correlates with subtle architectural defect in the cerebellum, exemplified by ectopic Purkinje cells and an adult-onset deficit of olfaction. These observations draw parallels to defects in the reelin heterozygote as well as the effect of high fat diet on olfaction.

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PloS one, 11, 1932-6203, e0162814, 0

PMID: 27658289

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Latest Publications

Autotaxin-lysophosphatidic acid receptor signalling regulates hepatitis C virus replication.

Farquhar MJ, Humphreys IS, Rudge SA

Journal of hepatology
1600-0641: (2017)

PMID: 28126468

The Phospholipase D2 Knock Out Mouse Has Ectopic Purkinje Cells and Suffers from Early Adult-Onset Anosmia.

Vermeren MM, Zhang Q, Smethurst E

PloS one
11 1932-6203:e0162814 (0)

PMID: 27658289

C13orf31 (FAMIN) is a central regulator of immunometabolic function.

Cader MZ, Boroviak K, Zhang Q

Nature immunology
1529-2916: (2016)

PMID: 27478939

Disallowance of Acot7 in β-Cells Is Required for Normal Glucose Tolerance and Insulin Secretion.

Martinez-Sanchez A, Pullen TJ, Chabosseau P

Diabetes
65 1939-327X:1268-82 (2016)

PMID: 26861785

Purification, characterization and crystallization of the F-ATPase from Paracoccus denitrificans.

Morales-Rios E, Watt IN, Zhang Q

Open biology
5 2046-2441: (2015)

PMID: 26423580

Phosphoinositide 3-kinase-related overgrowth: cellular phenotype and future therapeutic options.

Parker VE, Knox RG, Zhang Q

Lancet (London, England)
385 Suppl 1 1474-547X:S77 (2015)

PMID: 26312899

Speed and sensitivity of phototransduction in Drosophila depend on degree of saturation of membrane phospholipids.

Randall AS, Liu CH, Chu B

The Journal of neuroscience : the official journal of the Society for Neuroscience
35 1529-2401:2731-46 (2015)

PMID: 25673862