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  • Title: A lymphokine resembling transfer factor that stimulates MIF production by nonsensitive lymphocytes.
    Author: Philp JR, McCormack JG, Moore AL, Johnson JE.
    Journal: J Immunol; 1981 Apr; 126(4):1469-72. PubMed ID: 7009741.
    Abstract:
    High potency preparations of a new heat-labile, low m.w. (less than 5000) lymphokine (LMWL) were obtained by culturing tuberculin-sensitive guinea pig peritoneal exudate cells (PEC) with PPD in geometric conditions that promote amplified lymphokine production. This LMWL has the ability, in the presence of PPD, to stimulate nonsensitive PEC to produce a heat-stable molecule(s) resembling MIF with a m.w. in the range 50,000 to 100,000. The effects of the LMWL (less than 5000 daltons) and the MIF-like molecule(s) (50,000 to 100,000 daltons) were defined by the indirect macrophage migration assay and a macrophage deoxyglucose uptake assay. It is possible that LMWL represents a form of transfer factor with the ability to recruit unsensitized lymphocytes to produce MIF.
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