No abstract available.
Antigens, Surface*

No abstract available.
Antigens, CD4*

The general structure of the cluster of differentiation of antigens is divided in to 4 groups including transmembrane proteins type I, II, III and glycosylphosphatidyl inositol-anchored proteins (GPI). The cluster of differentiation plays an important role in both physiological and pathological hematology. This paper introduced some applications of cluster of differentiation in hematology and classification of acute leukemia such as myeloid acute leukemia, lymphoid acute leukemia and biphenotypic acute leukemia
Leukemia ; antigens

The linking ability of F1 antigen coated with sheep red blood cells does not change under the following conditions: freezing speed 0.5oC/minute, interval of sublimation 24 hours and adjuvant including 7.5% of saccharose and 0.1% BSA. The agglutination geometric mean titer remained at the same level 1/199.526 as before cryoprecipitation.
Antigens ; Erythrocytes

Using Quick change method, some pairs of primers were designed and 4 types of point mutation were created in the plasma past of JAM-1 endothelial cell adhesive molecule; C end acid amin was removed; JAM.1 Ser 284 amino acide was replaced by Ala acide amin, Tyr 261 amino acide by Phe amino acide; Tyr 261 and 280 were replaced at same time by 2 amino acided. The vectors containing mutant JAM was installed successfully in the cultured cell clones and promoting the biosynthesis of JAM-1 mutant proteins into cell clones. 4 types of mutant JAM-1 had changed HUVEC cells morphologically, leading to functional changes of protein
Antigens ; mutation

Objective: The Human Leukocyte Antigen (HLA) Class II is the major histocompatibility complex surface glycoproteins of humans responsible for presenting exogenous antigenic peptides which help direct specificity of immune response. In immune-cell therapy, the HLA allelic variants are of particular importance as they determine the successful activation of target cells that results to a desired therapeutic response. However, HLA Class II exhibits high polymorphism and has variable distribution in population, constituting these so-called allelic variants. Specifically, the HLA Class II DRB1 is considered the predominant locus among Filipinos. This research aimed to identify the presence of HLA Class II DRB1 allelic variants in the stem cell samples of ten (10) Filipino cancer patients by reverse transcription polymerase chain reaction (RT-PCR) amplification. Method: This study employed a PCR-based HLA Class II typing to identify the HLA Class II DRB1 allelic variant in Filipino cancer patients. Design of forward and reverse primers for HLA Class II DRB1, optimization of PCR conditions for amplifying HLA Class II DRB1, and identification of HLA Class II DRB1 allelic variants from samples by sequencing and database comparison were conducted. Results: PCR optimization showed that optimum annealing temperature for HLA DRB1 was 58.8°C with 1 mM MgCl2. PCR amplification of HLA DRB1 from ten anonymized cancer patient samples and DNA sequencing revealed that Patients 1, 2, 5, 8, 9, and 10 harbor HLA DRB1 allelic variants, particularly, the HLA DRB1*04:06:01, HLA DRB1*12:01:01, HLA DRB1*0813, HLA DRB1*04:05:01, HLA DRB1*09:01:02, and HLA DRB1*16:02:01, allelic variants, respectively. Conclusion Using the designed primers and optimized RT-PCR protocol, HLA information derived from six out of ten patient samples can be used for further applications in developing personalized or generic antigenic peptides such as dendritic cell cancer vaccine.
HLA Antigens

The potential ability of ginger bioactive compounds in increasing the ratio of T-cell surface molecules of CD3+CD4+:CD3+CD8+ was investigated using dual tagging FITC and PE of monoclonal antibody anti-human with its fluorescence measured by flow cytometer. Oleoresin was extracted using sinkhole distillation technique. Its components namely, gingerol in fraction-1, shogaol in fraction 2 and zingeron in fraction-3 were separated by column vacuum chromatography method. The doses of oleoresin, gingerol, shogaol, and zingeron tested were 50, 100,150, 200, and 250 μg/ml. Lymphocytes (2x106 cell/ml) from human peripheral blood were isolated using ficoll density gradient technique, and cultured in the presence of the compounds in RPMI-1640 medium and phytohemaglutinin (PHA) mitogen for 96 h under normal conditions. Percentages of T-cell surface molecules (CD4+ and CD8+) were determined using dual-tagging FITC and PE fluorescents labeled on monoclonal antibody anti human. The fluorescence-labeled bands on the T-cell surface molecules were counted using flow cytometer. The experiment revealed that oleoresin and its three fractions increased the percentage of CD3+CD4+. The compound in fraction 3 of oleoresin at 200 μg/ml increased by the highest percentage of CD3+CD4+ of 9%, but slightly decreased the percentage of CD3+CD8+. These ginger bioactive compounds increased the ratio of CD3+CD4:CD3+CD8+ T-cells with the highest increment of 30% from effects of 200 μg/ml fraction 3 of oleoresin. This in vitro finding revealed that ginger bioactive compounds potentially increased cellular and humoral immune response. Further clinical studies are needed to confirm the benefits of these ginger bioactive compounds as a potential functional food for testing on HIV infected patients.
Antigens, CD3 ; Antigens, CD4 ; Ginger extract ; Antigens, CD8 ; T-Lymphocytes

No abstract available.
Antigens, Surface* ; Leukemia*

No abstract available.
HLA-D Antigens* ; Humans*

No abstract available.
Blood Group Antigens*