PURPOSE Celecoxib (CEL) is a relatively new cyclooxygenase-2 specific inhibitor nonsteroidal anti-inflammatory drug with low incidents of the toxic side effects. We developed and validated an HPLC assay for CEL and delineated pharmacokinetics of the drug in the rat in the presence and absence of inflammation. METHODS Rat plasma (0.1 mL plasma) was spiked with CEL and ibuprofen as internal sta...

Signal recogni t ion particle (SRP) is a r ibonucleoprotein consist ing of six distinct polypept ides and one molecule of smal l cytoplasmic 7SL-RNA. The particle was previously shown to funct ion in protein translocat ion across and protein integrat ion into the endoplasmic ret iculum membrane. fract ions. The part i t ioning of SRP is shown to be dependent on the ionic condi t ions of the fra...

Background and aims: Infectious diseases are disorders caused by organisms such as bacteria, viruses, fungi or parasites .The Th9 subset develops in response to combined signals from TGF-b and IL-4 among a cacophony of other cytokines in an extracellular milieu. T helper 9 (Th9) cells,  as a novel CD4 T cell subset, seem to play a complex role in the outcome of specific immune responses. In thi...

Chimeric antigen receptor T-cell (CAR-T) therapies targeting the B-cell maturation are a new class of therapy for treating Relapsed or Refractory Multiple Myeloma (RRMM). As CAR-T introduced, payers will need to balance higher efficacy, upfront costs, and total treatment costs when evaluating potential value. We developed cost per responder (CPR) model which incorporates efficacy evaluate value...

Efficient loading of MHC class II molecules with a T helper epitope of choice can be achieved through genetic exchange of the MHC class II-associated invariant chain peptide (CLIP) sequence with a sequence encoding the helper peptide. We have now used this method to engineer a cellular vaccine that continuously expresses a tumor-specific helper epitope in a defined costimulatory context. We pro...

background t-helper (th) lymphocyte cytokine production may be important in the immune pathogenesis of hepatitis c virus (hcv) infections. th1 cytokines such as; interleukin- 2 (il-2), and interferon gamma (ifn-gamma) are necessary for host antiviral immune responses, while th2 cytokines (il-4, il-10) can inhibit the development of these effector mechanisms. objectives the aim of the present st...

background : cytokines produced by different subsets of t cells are the key mediators to adjust the quality of immune responses. despite evidence of induction of an immune reaction against tumors such as breast cancer, not all responses are protective. in this study we attempt to evaluate the expression profile of several cytokines from the t helper 1 and 2 subsets in blood cells from patients ...

Differentiation of porcine T helper cells is still poorly investigated, partly due to a lack of monoclonal antibodies (mAbs) specific for molecules involved in this process. Recently, we identified a mAb specific for porcine CD27 and showed that CD27 is expressed by all naïve CD8α- T helper cells but divides CD8α+ T helper cells into a CD27+ and a CD27- subset. In the present study, detailed ph...

CD44 is a prominent activation marker which distinguishes memory and effector T cells from their naïve counterparts. It also plays a role in early T cell signaling events as it is bound to the lymphocyte-specific protein kinase and thereby enhances T cell receptor signalling. Here, we investigated whether IFN-γ and IL-17 producing T helper cells differ in their CD44 expression and their depende...