Type 2 rhinovirus infection of cultured human tracheal epithelial cells: Role of LDL receptor

Tomoko Suzuki, Mutsuo Yamaya, Masahito Kamanaka, Yu X. Jia, Katsutoshi Nakayama, Masayoshi Hosoda, Norihiro Yamada, Hidekazu Nishimura, Kiyohisa Sekizawa, Hidetada Sasaki

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


To examine the role of the low-density lipoprotein (LDL) receptor on minor group human rhinovirus (RV) infection, primary cultures of human tracheal epithelial cells were infected with a minor group (RV2) or a major group (RV14) RV. Viral infection was confirmed by showing with PCR that viral titers in supernatants and lysates from infected cells increased with time. RV2 and RV14 increased expression of mRNA and protein of the LDL receptor on the cells and the cytokine production. RV2 induced activation of transcription factors SP1 and nuclear factor-κB (NF-κB). An antibody to the LDL receptor inhibited RV2 infection and RV2-induced cytokine production without an effect on RV14 infection and RV14-induced cytokine production. These findings imply that RV2 upregulates LDL receptor expression on airway epithelial cells, thereby increasing susceptibility to minor group RV infection. LDL receptor expression and cytokine production may be mediated, in part, via activation of transcription factors by RV2. These events may be important in airway inflammation after minor group RV infection in asthma.

Original languageEnglish (US)
Pages (from-to)L409-L420
JournalAmerican Journal of Physiology - Lung Cellular and Molecular Physiology
Issue number3 24-3
StatePublished - Mar 2001

All Science Journal Classification (ASJC) codes

  • Physiology
  • Pulmonary and Respiratory Medicine
  • Physiology (medical)
  • Cell Biology


Dive into the research topics of 'Type 2 rhinovirus infection of cultured human tracheal epithelial cells: Role of LDL receptor'. Together they form a unique fingerprint.

Cite this