ELECTRON MICROSCOPY OF HUMAN LYMPHOCYTES STIMULATED BY PHYTOHAEMAGGLUTININ

Electron Microscopy of Human Lymphocytes Stimulated by Phytohaemagglutinin

Mononuclear cells from the human peripheral blood undergo an intense proliferative reaction when they are cultured in the presence of the mitogen phytohaemagglutinin (10). This proliferation is accompanied by a marked change in the morphology of the cells. Observation by light microscopy shows that they increase in size, reaching diameters of up to 30 ~. The transformed cells are highly mobile ...

Examination of Lung Parenchyma by Electron Microscopy

In this paper many of the principal struc­ture of the Moral Lung were studied with the help of Electron Microscopy. Detailed descrip­tion was given of Granular Pneumocytes, Membranous Pneumocytes, Macrophages, and Alveolar Capillaries. A discussion followed on the form and function of Granular Pneumo­cytes.  Acknowledgements  I am grateful to the Reza Shah Pahlavi Foundation for its generou...

Isolation of Herpetosiphon giganteus and Ultrastructure Analysis by Electron Microscopy

Herpetosiphon giganteus is a filamentous gliding bacterium. Gliding motility is the movement of the cells over surfaces without the aid of flagella. The mechanism responsible for bacterial gliding motility has not been known and there are only a few data on Herpetosiphon giganteus. The aim of this study was to observe the ultrastructure and negative staining of isolated strains of Herpetosiphon...

Effect of fatty acid mixtures on phytohaemagglutinin-stimulated lymphocytes of different species.

It has been shown that changes in fatty acid turnover are an early event in the response in vitro of animal lymphocytes to mitogens (Resch & Ferber, 1972). Fatty acids added to the medium in ethanol inhibit the increase in uridine and thymidine uptake in human lymphocytes, which is a normal part of the response (Meriin ef al., 1974). We have previously reported that even when bound to albumin, ...

Electron Microscopy of Fowl Pox Virus