C HRONIC LYMPHOCYTIC LEUKEMIA (CLL) B cells are, in general, highly refractory to transformation by Epstein-Barr virus (EBV),’ and therefore, relatively few EBV-immortalized cell lines originating from CLL cells have been described.’4 In this paper we report the establishment of a novel EBV-transformed B cell line from the leukemic cells of a CLL patient that expressed surface u immunoglobulin....

C HRONIC LYMPHOCYTIC LEUKEMIA (CLL) B cells are, in general, highly refractory to transformation by Epstein-Barr virus (EBV),’ and therefore, relatively few EBV-immortalized cell lines originating from CLL cells have been described.’4 In this paper we report the establishment of a novel EBV-transformed B cell line from the leukemic cells of a CLL patient that expressed surface u immunoglobulin....

For transplantation of semiallogeneic bursal stem cells into cyclophosphamide-treated 3-day old chicks, two lines of chickens homozygous at the major histocompatibility locus and their F(1) hybrids were used in reciprocal combinations. The semiallogeneic transplantations resulted in a complete restoration of antibody formation to sheep red blood cells (SRBC) and Brucella, of microscopic morphol...

Antibody responses to a first, second, and third injection with SRBC, and growth were studied in lines of White Leghorn chickens selected for high (HA) or low (LA) 5-d antibody titers to an i.v. inoculation with 0.1 mL of a 0.25% suspension of SRBC. The experiment involved parallel studies on two groups of chicks hatched from the same matings of parental lines HA and LA at a 14-d interval. Chic...

Dextran, of the variety commonly used as plasma expander, markedly altered antibody synthesis to an unrelated antigenic stimulus, SRBC, in two animal species, guinea pig and mouse. The time at which dextran was administered relative to antigen was found to be most critical for increasing or decreasing the number of IgM and IgG PFC. Furthermore, these times differed for the two species studied. ...

Our previous studies revealed that lactoferrin (LF) reconstitutes the cellular and humoral immune response in cyclophosphamide-treated mice. The aim of this investigation was to establish whether the suppressory effects of methotrexate (MTX) on the cellular and humoral immune response can be modulated by LF. We found that MTX, given intraperitoneally (i.p.) at a dose of 200 mg/kg b.w., 48 h fol...

The humoral immune response to heterologous erythrocytes requires the cooperation of B lymphocytes and helper T cells. The production of anti-sheep erythrocytes (SRBC) 1 IgG is almost wholly dependent on the activity of T help (reviewed in 1). Helper T cells that recognize the carrier portion of an immunogen have been known for some time (2). More recently evidence has accumulated that other he...

The effects of three resuscitation fluids, hydroxyethyl starch (HES), Haemaccel, and fresh autologous blood, on reticuloendothelial system phagocytic and catabolic functions and resistance to infection after 40% hemorrhages in BALB/c mice were studied. The mice, anesthetized with isoflurane, were bled over a 10-min period, left hypovolemic for 30 min, and then resuscitated with their shed blood...