Related Experiment Video
Updated: Jun 14, 2026
13:45
Merkel Cell Polyomavirus Infection and Detection
Published on: February 7, 2019
Merkel cell polyomavirus in cutaneous swabs.
Vincent Foulongne1, Nicolas Kluger, Olivier Dereure
1University of Montpellier I, Montpellier, France. v-foulongne@chu-montpellier.fr
Emerging Infectious Diseases
|March 31, 2010
Summary
Cutaneous swabs effectively detect Merkel cell polyomavirus (MCPyV) DNA in most individuals. Higher viral loads were observed in patients diagnosed with Merkel cell carcinoma (MCC), suggesting diagnostic potential.
Area of Science:
- Virology
- Dermatology
- Oncology
Background:
- Merkel cell polyomavirus (MCPyV) is a human polyomavirus.
- MCPyV is associated with Merkel cell carcinoma (MCC), a rare but aggressive skin cancer.
Purpose of the Study:
- To evaluate the utility of cutaneous swabs for detecting MCPyV DNA.
- To compare MCPyV detection rates and viral loads across different participant groups.
Main Methods:
- Analysis of DNA from cutaneous swabs collected from individuals with MCC, other skin conditions, and healthy controls.
- Polymerase chain reaction (PCR) based detection of MCPyV DNA.
Main Results:
- MCPyV DNA was detected in at least one swab from nearly all participants.
- Significantly higher viral loads of MCPyV were found in samples from patients with MCC compared to other groups.
Conclusions:
- Cutaneous swabs are a viable method for detecting MCPyV DNA.
- Elevated MCPyV viral loads in skin swabs may serve as a potential biomarker for MCC.
Related Concept Videos
01:17Poliomyelitis
Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
01:28Herpes
Herpes simplex type 1 (HSV‑1) is a widespread pathogen responsible for orolabial lesions. It is an enveloped, double-stranded DNA (dsDNA) virus belonging to the family Herpesviridae. Once the virus infects a host cell, its double‑stranded DNA genome is delivered into the nucleus, where a coordinated cascade of immediate‑early, early, and late gene expression directs viral DNA replication, structural protein synthesis, and virion assembly. After primary infection of epithelial cells, HSV-1...
01:27Cytomegalovirus Disease
Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...