The effect of raft lipid depletion on microvilli formation in MDCK cells, visualized by atomic force microscopy

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

Abstract

We have investigated whether raft lipids of Madin-Darby canine kidney (MDCK) cells play any role in microvilli maintenance using a combination of atomic force microscopy (AFM) and laser scanning confocal microscopy. MDCK cells were treated to reduce the amount of sphingolipids, cholesterol, or both and subsequently imaged, in buffer solution, using AFM. It was observed that inhibition of either sphingolipid or cholesterol biosynthesis led to a reduction in the number of microvilli on the surface of MDCK cells. However, this effect was not uniform across the monolayer, with some cells resembling those in untreated controls. The subsequent extraction of cholesterol from cells grown in the presence of inhibitors led to a further reduction in microvilli on the surface of the cells and, in some cases, resulted in monolayers devoid of full length microvilli. Significantly, smaller spikes were observed on the surface of the smoother cells.

Details

OriginalspracheEnglisch
Seiten (von - bis)53-58
Seitenumfang6
FachzeitschriftFEBS letters
Jahrgang565
Ausgabenummer1-3
PublikationsstatusVeröffentlicht - 7 Mai 2004
Peer-Review-StatusJa

Externe IDs

PubMed 15135052

Schlagworte

Schlagwörter

  • AFM, atomic force microscopy, Atomic force microscopy, Laser scanning confocal microscopy, Madin-Darby canine kidney, MBCD, MDCK, methyl-β-cyclodextrin, Microvillus, Raft lipid