microRNAs function in diverse developmental and physiological processes by regulating target gene expression at the post-transcriptional level. ALG-1 is one of two Caenorhabditis elegans Argonautes (ALG-1 and ALG-2) that together are essential for microRNA biogenesis and function. Here, we report the identification of novel antimorphic (anti) alleles of ALG-1 as suppressors of lin-28(lf) precoc...

MicroRNAs are regulators of gene expression whose functions are critical for normal development and physiology. We have previously characterized mutations in a Caenorhabditis elegans microRNA-specific Argonaute ALG-1 (Argonaute-like gene) that are antimorphic [alg-1(anti)]. alg-1(anti) mutants have dramatically stronger microRNA-related phenotypes than animals with a complete loss of ALG-1. ALG...

Antithymocyte globulin (ATG) and antilymphocyte globulin (ALG) are effective therapies in aplastic anemia; their mechanism of action is undefined. We assayed multiple properties of ATG and ALG to address the biological and immunological bases for differences between ATG and ALG and lot variation. In addition, we studied a lot reported to be inactive in an American clinical trial; however in ret...

BACKGROUND The therapeutic efficacy of horse antilymphocyte globulins (ALG) or of rabbit antithymocyte globulins (ATG), used for both the prevention and treatment of allograft rejection has been well documented. However, clinical use of these heterologous antibodies can result in the production of antibodies against horse or rabbit proteins and in the development of serum sickness via circulati...

abstract background: lymphoproliferative disorders are among the most serious and potentially fatal complications of chronic immunosuppression in kidney transplant recipients. the principle risk factors for development of ptld are the degree of overall immunosuppression and the ebv serostatus of the recipient. in this study, the risk of ptld in kidney transplant recipients who received anti- ly...

Antithymocyte and antilymphocyte globulins (ALG) are currently used as immunosuppressive agents in organ transplantation and for the treatment of acute graft-versus-host disease and aplastic anemia. Since any type of immunosuppressive treatment is known to carry the risk of developing B-cell lymphoproliferative disorders, we investigated the in vitro effect of ALG on human B-cell activation and...

 Abstract Background: Lymphoproliferative disorders are among the most serious and potentially fatal complications of chronic immunosuppression in kidney transplant recipients. The principle risk factors for development of PTLD are the degree of overall immunosuppression and the EBV serostatus of the recipient. In this study, the risk of PTLD in kidney transplant recipients who received Anti- L...

Clinical reactions and serologic in all cases, to alpha globulins in 9 cases, and to SuMM*~y changes after intramuscular adgamma globulins in only 1. This h d i n g indicates ministration of horse anti-human lymphocyte that a safer ALG could be made by removing the globulin (ALG) were studied in 53 human retrace quantities of alpha and beta globulins from cipients of renal homografts. The ALG w...

The specificity of anti-lymphocyte globulin (ALG) has been used to analyze an immune mechanism which is mediated by immunologically committed lymphoid cells to the apparent exclusion of humoral antibody. Rabbit antimouse lymphocyte globulin completely suppressed the immunity which can be passively transferred with Listeria-immune lymphoid cells from actively infected donors. When prospective do...

Antilymphocyte globulin (ALG) was given every other day for 5 doses with platelet transfusions immediately following ALG administration in 6 patients with aplastic anaemia. Four patients responded and 3 durable remissions were achieved. One patient relapsed and further treatment with anti-thymocyte globulin and cyclosporin also failed. One patient died of Flavobacterium septicaemia 6 days after...