title: Differential gene expression in chronic inflammatory demyelinating polyneuropathy (CIDP) skin biopsies.
abstract: Gene expression analysis previously identified molecular markers that are up-regulated in sural nerve biopsies from patients with chronic inflammatory demyelinating polyneuropathy (CIDP). To determine whether the same or additional genes are also up-regulated in skin, we applied gene microarray profiling and quantitative real-time PCR (qPCR) analysis to skin punch biopsies from patients with CIDP and controls. Five genes, allograft inflammatory factor 1 (AIF-1), lymphatic hyaluronan receptor (LYVE-1/XLKD1), FYN binding protein (FYB), P2RY1 (purinergic receptor P2Y, G-protein-coupled, 1), and MLLT3 (myeloid/lymphoid or mixed-lineage leukemia translocated to, 3), all associated with immune cells or inflammatory processes, were elevated in punch skin biopsies from patients with CIDP as compared to normal subjects or patients with Charcot-Marie-Tooth Type 1 (CMT1). The average fold change of the 5 genes over normal expression, as determined by qPCR, was significantly elevated in skin biopsies from patients with CIDP in comparison to CMT1 or diabetic neuropathy, and similar to that seen in Lyme disease. The findings indicate the presence of inflammatory changes in the skin of patients with CIDP.
authors.affiliation: Department of Neurology and Neuroscience, Weill Medical College of Cornell University, New York City, NY 10021, USA. GRL2003@med.cornell.edu
authors.forename: Grace
authors.initials: G
authors.lastname: Lee
authors.forename: Zhaoying
authors.initials: Z
authors.lastname: Xiang
authors.forename: Thomas H
authors.initials: TH
authors.lastname: Brannagan
authors.forename: Russell L
authors.initials: RL
authors.lastname: Chin
authors.forename: Norman
authors.initials: N
authors.lastname: Latov
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000235:genetics / Q000378:metabolism; D000293:Adolescent; D000328:Adult; D015415:Biomarkers / Q000032:analysis / Q000378:metabolism; D001706:Biopsy; D002135:Calcium-Binding Proteins; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism; D005260:Female; D020869:Gene Expression Profiling / Q000379:methods; D005786:Gene Expression Regulation / Q000235:genetics*; D020022:Genetic Predisposition to Disease / Q000235:genetics; D006801:Humans; D007249:Inflammation / Q000235:genetics / Q000378:metabolism / Q000503:physiopathology; D018836:Inflammation Mediators / Q000032:analysis / Q000378:metabolism*; D008297:Male; D008840:Microfilament Proteins; D008875:Middle Aged; D009419:Nerve Tissue Proteins / Q000235:genetics / Q000378:metabolism; D009687:Nuclear Proteins / Q000235:genetics / Q000378:metabolism; D010525:Peripheral Nerves / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology; D020277:Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / Q000235:genetics* / Q000378:metabolism* / Q000503:physiopathology; D012333:RNA, Messenger / Q000032:analysis / Q000378:metabolism; D018048:Receptors, Purinergic P2 / Q000235:genetics / Q000378:metabolism; D058472:Receptors, Purinergic P2Y1; D020133:Reverse Transcriptase Polymerase Chain Reaction; D011984:Sensory Receptor Cells / Q000378:metabolism* / Q000473:pathology; D012867:Skin / Q000294:innervation / Q000503:physiopathology; D033921:Vesicular Transport Proteins / Q000235:genetics / Q000378:metabolism; D055815:Young Adult
chemical_list: C112986:AIF1 protein, human; D048868:Adaptor Proteins, Signal Transducing; D015415:Biomarkers; D002135:Calcium-Binding Proteins; D004268:DNA-Binding Proteins; C106957:FYB1 protein, human; D018836:Inflammation Mediators; C119248:LYVE1 protein, human; C489901:MLLT3 protein, human; D008840:Microfilament Proteins; D009419:Nerve Tissue Proteins; D009687:Nuclear Proteins; C546382:P2RY1 protein, human; D012333:RNA, Messenger; D018048:Receptors, Purinergic P2; D058472:Receptors, Purinergic P2Y1; D033921:Vesicular Transport Proteins