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The expression of CD16 on NK cells can undergo considerable down-regulation in cancer patients, which significantly inhibits the immune system's antitumor response.
Three monocytes subpopulations, based on their expression of CD14 and CD16 surface markers, have been described in humans .
Granulocytes were gated according to their morphological characteristics and then analyzed for the expression of CD15, CD16, and CD11b.
The abnormal NK cells were positive for surface CD45 (high), CD2, CD26, CD38, CD94 (high), and HLA-DR and cytoplasmic granzyme B and perforin; and they were negative for surface CD3, CD4, CD5, CD7, CD8, CD11c, CD16, CD19, CD20, CD25, CD56, Ig kappa, and lambda chains.
5 depicts a flow cytometer dot plot, showing uniform expression of CD16 and CD62L by normal granulocytes before and after LPS administration.
In addition, it was also found that the sub-population of CD16 and CD14 cells and DNases associated with monocytes increased in patients with some autoimmune diseases (grave disease, multiple sclerosis).
Tabela 2 Estrutura Fatorial do CAD em Jovens Portugueses [xi] [ji al] [lambda] [epsilon] (construto) (variaveis) (erros) [itens] Condutas CA1 0,56 0,31 Antissociais CA2 0,47 0,22 CA3 0,53 0,28 CA4 0,54 0,29 CA5 0,64 0,41 CA6 0,57 0,33 CA7 0,63 0,39 CA8 0,55 0,30 CA9 0,61 0,37 CA10 0,62 0,38 CA11 0,58 0,34 CA12 0,55 0,30 CA13 0,48 0,23 CA14 0,55 0,30 CA15 0,67 0,45 CA16 0,65 0,43 CA17 0,50 0,25 CA18 0,42 0,18 CA19 0,47 0,22 CA20 0,57 0,33 Condutas CD1 0,37 0,14 Delitivas CD2 0,68 0,46 CD3 0,80 0,64 CD4 0,68 0,46 CD5 0,59 0,34 CD6 0,52 0,27 CD7 0,67 0,44 CD8 0,69 0,48 CD9 0,76 0,58 CD10 0,68 0,46 CD11 0,67 0,46 CD12 0,79 0,63 CD13 0,60 0,36 CD14 0,76 0,58 CD15 0,72 0,52 CD16 0,69 0,47 CD17 0,47 0,16 CD18 0,45 0,15 CD19 0,80 0,64 CD20 0,30 0,09 Notas.
Mature monocytes expressing CD16 showed higher levels of genes and corresponding proteins associated with phagocytic activity mediated through Fc[gamma] receptor: actin-related protein 2/3 complex (ARPC5), CD16, hemopoietic cell kinase (HCK), thyrosine-protein kinase Lyn (LYN), hemeoxygenase 1 (HMOX), villin 2 (VIL2).
The flow cytometric study of the peripheral blood showed that the circulating neoplastic cells (comprising about 40% of total white blood cells) seemed to be of NK-cell lineage with expression of CD45 (bright), CD2, CD56, CD11b, CD16 (partial), and cytoplasmic CD3, but the sample was negative for surface CD3, CD57, CD4, CD5, CD7, CD8, TCR, CD123, terminal deoxynucleotidyl transferase, CD34, B-cell markers, or myeloid markers (Figure 2, A through F).
Anti-HNA-2a and anti-Fc[gamma]RIIIb (also known as CD16) in mothers with an HNA-null phenotype [i.e., FcRyOIb deficiency (Box 1)] are more rarely involved (5).
Blood granulocytes from some of the individuals with PIGV mutations had partially reduced surface expression of CD16, a GPI-AP.
Depending on the affinity with which immunoglobulins bind to the receptor, the FcyR receptors are classified either as high-affinity --known as FcyRI (CD64)--or as low-affinity receptors, such as FcyRII (CD32) and FcyRIII (CD16).
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- CD132 antigen
- CD135 antigen
- CD14 antigen
- CD140 antigen-like family member A
- CD140 antigen-like family member B
- CD140a antigen
- CD140b antigen
- CD144 antigen
- CD154 antigen
- CD156a Antigen
- CD156b Antigen
- CD156c Antigen
- CD157 antigen
- CD161 antigen
- CD167 antigen-like family member A
- CD167 antigen-like family member B
- CD167a antigen
- CD167b antigen
- CD172 antigen-like family member A
- CD172 antigen-like family member B
- CD172a antigen
- CD172b antigen
- CD172g antigen
- CD18 antigen
- CD181 antigen
- CD182 antigen
- CD183 antigen
- CD184 antigen
- CD185 antigen