Keratinocyte Derived Soluble Factors which Influence Lymphocyte Proliferation

Lacrimal gland-derived lymphocyte proliferation potentiating factor.

PURPOSE To determine whether lacrimal gland acinar cells are involved in modulating local immune response; to isolate and characterize a lacrimal gland factor that exerts biological activities on T lymphocytes. METHODS A protein factor has been purified from lacrimal gland extracts by a combination of ion exchange and gel-filtration chromatography. This factor has the capacity to enhance prol...

Fibrin Stimulates Keratinocyte Proliferation

Received February 9, 2005; revision accepted for publication June 21, 2005. Correspondence: Misa Yamamoto, MT (Medical Technologist), CT (Cytologist), Faculty of Health Sciences, Yamaguchi University School of Medicine, MinamiKogushi 1-1-1, Ube, Yamaguchi, 755-8554, Japan. e-mail: [email protected] Fibrin Stimulates the Proliferation of Human Keratinocytes through the Autocrine Mechani...

Regulation of B-lymphocyte clonal proliferation by stimulatory and inhibitory macrophage-derived factors

A functional subpopulation of murine B lymphocytes proliferate in semisolid agar culture in the presence of 2-mercaptoethanol to form colonies. The effects of diffusible macrophage-derived factors on this focal proliferation was investigated using a two-layer culture system which prevented macrophage-lymphocyte contact and permitted B-cell activation to be critically assessed under conditions o...

Factors Which Influence Learning Ability dUring a

The main goal of this study was to obtain insight about the factors that influence students' ability to learn during a field trip, in order to improve the planning and execution of learning field trips. The study was conducted in the context of a 1-day geological field trip for high school students in Israel. Three domains were tested by observations and questionnaires: (1) the nature of the le...

Intestinal Intraepithelial Lymphocyte -T Cell-Derived Keratinocyte Growth Factor Modulates Epithelial Growth in the Mouse