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Full-Text Articles in Medicine and Health Sciences

Fc Receptors For Igg (Fc Gamma Rs) On Human Monocytes And Macrophages Are Not Infectivity Receptors For Human Immunodeficiency Virus Type 1 (Hiv-1): Studies Using Bispecific Antibodies To Target Hiv-1 To Various Myeloid Cell Surface Molecules, Including The Fc Gamma R., R I. Connor, N B. Dinces, A L. Howell, J L. Romet-Lemonne, J L. Pasquali, M W. Fanger Nov 1991

Fc Receptors For Igg (Fc Gamma Rs) On Human Monocytes And Macrophages Are Not Infectivity Receptors For Human Immunodeficiency Virus Type 1 (Hiv-1): Studies Using Bispecific Antibodies To Target Hiv-1 To Various Myeloid Cell Surface Molecules, Including The Fc Gamma R., R I. Connor, N B. Dinces, A L. Howell, J L. Romet-Lemonne, J L. Pasquali, M W. Fanger

Dartmouth Scholarship

Fc gamma Rs (Fc gamma RI, Fc gamma RII, and Fc gamma RIII) are highly expressed on human mononuclear phagocytes and function in the clearance of immune complexes and opsonized pathogens. We have examined the role of Fc gamma R in mediating antibody-dependent clearance of HIV-1 by human monocytes and monocyte-derived macrophages by using bispecific antibodies (BsAbs) to independently target the virus to Fc gamma RI, Fc gamma RII, or Fc gamma RIII. Virus production was markedly reduced in monocytes cultured with strain HIV-1IIIB opsonized with BsAbs that target the virus to either Fc gamma RI or Fc gamma RII …


Effect Of Delays In Processing On The Survival Of Mycobacterium Avium-M. Intracellulare In The Isolator Blood Culture System., C. Fordham Von Reyn, Stephen Hennigan, Sandra Niemczyk, Nicholas J. Jacobs Jun 1991

Effect Of Delays In Processing On The Survival Of Mycobacterium Avium-M. Intracellulare In The Isolator Blood Culture System., C. Fordham Von Reyn, Stephen Hennigan, Sandra Niemczyk, Nicholas J. Jacobs

Dartmouth Scholarship

Concentrations of Mycobacterium avium-M. intracellulare ranging from 10(-1) to 10(3) CFU/ml were added to blood, placed in Isolator tubes, and held at room temperature for intervals ranging from 4 h to 56 days before being processed (centrifugation and culture on Middlebrook 7H10 agar). At all concentrations tested, M. avium-M. intracellulare was recovered after hold times ranging from 4 h to 7 days; the number of final CFU actually increased progressively for hold times of 8 h or more. Hold times of up to 7 days did not increase the time from processing to the first appearance of visible colonies. At …