Faculty Opinions recommendation of Interleukin-5 induces CD34(+) eosinophil progenitor mobilization and eosinophil CCR3 expression in asthma.

Author(s):  
Gerald Gleich
Keyword(s):  
1997 ◽  
Vol 27 (11) ◽  
pp. 1254-1260 ◽  
Author(s):  
M. O. HOEKSTRA ◽  
Y. HOEKSTRA ◽  
D. DE REUS ◽  
B. RUTGERS ◽  
J. GERRITSEN ◽  
...  

2020 ◽  
Vol 2 (1) ◽  
pp. 17
Author(s):  
Meilina Wardhani ◽  
Ressy Irma Juwita ◽  
Mitayani Purwoko

Latar Belakang: Rinitis alergi adalah suatu penyakit pada hidung yang ditimbulkan oleh reaksi inflamasi mpada mukosa hidung dengan perantara immunoglobulin E. Prevalensi rinitis alergi di dunia telah meningkat termasuk di Indonesia yang kini telah mencapai 1,5-12.4% dan cenderung mengalami peningkatan setiap tahunnya. Penelitian ini bertujuan untuk mencari prevalensi rinitis alergi dan hubungan antara jenis kelamin dan riwayat asma dengan kejadian rinitis alergi pada siswa sekolah di Palembang. Metode: Penelitian ini adalah penelitian analitik observasional dengan desain cross sectional. Penelitian dilakukan di SMP Muhammadiyah 3 Palembang pada tahun 2018. Data primer diperoleh dengan cara meminta subjek penelitian untuk mengisi kuesioner ISAAC. Kriteria inklusi penelitian ini adalah siswa-siswi berusia 13-14 tahun. Besar sampel yang digunakan sebanyak 80 responden, diambil teknik total sampling.Hasil: Pada penelitian ini didapatkan prevalensi rinitis alergi sebesar 51,2% dan jenis kelamin (p=0,014) dan riwayat asma (p=0,019) sebagai faktor risiko terjadinya rinitis alergi.  Perempuan lebih banyak menderita rinitis alergi dibanding laki-laki kemungkinan disebabkan perempuan lebih sering terpapar allergen berupa debu akibat sering melakukan pekerjaan rumah tangga seperti menyapu. Adanya paparan alergen terhadap mukosa hidung akan meningkatkan konsentrasi berbagai faktor yang terkait asma seperti eosinophil, interleukin-5 dan sel CD34 di darah perifer. Kesimpulan: Jenis kelamin dan riwayat asma merupakan faktor risiko terjadinya rinitis alergi pada anak.


1994 ◽  
Vol 14 (11) ◽  
pp. 7404-7413 ◽  
Author(s):  
S Takaki ◽  
H Kanazawa ◽  
M Shiiba ◽  
K Takatsu

Interleukin-5 (IL-5) regulates the production and function of B cells, eosinophils, and basophils. The IL-5 receptor (IL-5R) consists of two distinct membrane proteins, alpha and beta. The alpha chain (IL-5R alpha) is specific to IL-5. The beta chain is the common beta chain (beta c) of receptors for IL-3 and granulocyte-macrophage colony-stimulating factor (GM-CSF). The cytoplasmic domains of both alpha and beta chains are essential for signal transduction. In this study, we generated cDNAs of IL-5R alpha having various mutations in their cytoplasmic domains and examined the function of these mutants by expressing them in IL-3-dependent FDC-P1 cells. The membrane-proximal proline-rich sequence of the cytoplasmic domain of IL-5R alpha, which is conserved among the alpha chains of IL-5R, IL-3R, and GM-CSF receptor (GM-CSFR), was found to be essential for the IL-5-induced proliferative response, expression of nuclear proto-oncogenes such as c-jun, c-fos, and c-myc, and tyrosine phosphorylation of cellular proteins including JAK2 protein-tyrosine kinase. In addition, analysis using chimeric receptors which consist of the extracellular domain of IL-5R alpha and the cytoplasmic domain of beta c suggested that dimerization of the cytoplasmic domain of beta c may be an important step in activating the IL-5R complex and transducing intracellular growth signals.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yong-Jun Tang ◽  
Li-Li Xie ◽  
Xiang-Rong Zheng ◽  
Chen-Tao Liu ◽  
Xia Wang

AbstractOur aim was to detect type 2 innate lymphoid cells (ILC2s)-related cytokines of infants with bronchiolitis by using Elisa, Liquidchip technology and RT-PCR and investigated its correlation with bronchiolitis. We recruited 26 infants with bronchiolitis and 20 healthy infants as control from Xiangya Hospital. Compared to the control group, the serum levels of interleukin-5 (IL-5) [41.99 (21.11) vs 25.70 (19.64)], IL-9 [27.04 (37.51) vs 8.30 (0.54)], IL-13 [184.05 (132.81) vs 121.75 (176.13)], IL-33 [83.70 (46.69) vs 11.23 (55.31)] and thymic stromal lymphopoietin (TSLP) [31.42 (5.41) vs 28.76 (2.56)] were significantly increased in infants with bronchiolitis (P < 0.05), while the level of IgE had no significant difference between the two groups [19.05 (14.15) vs 14.85 (20.2), P > 0.05]. The mRNA expression of IL-17RB (9.83 ± 0.35 vs 9.19 ± 0.58), TSLP (16.98 ± 2.12 vs 15.07 ± 2.25), retinoid acid receptor related orphan receptor α (7.18 ± 0.71 vs 5.46 ± 1.09) and trans-acting T-cell-specific transcription factor 3 (4.86 ± 0.66 vs 4.19 ± 0.90) were significantly increased in infants with bronchiolitis versus the control group (P < 0.05), while there was no statistical significance for suppression of tumorigenicity 2 (5.59 ± 0.68 vs 5.41 ± 0.87, P > 0.05). Our findings suggested that ILC2s possibly play a specific role in immunopathology of bronchiolitis.


2004 ◽  
Vol 72 (12) ◽  
pp. 7096-7106 ◽  
Author(s):  
James E. Galen ◽  
Licheng Zhao ◽  
Magaly Chinchilla ◽  
Jin Yuan Wang ◽  
Marcela F. Pasetti ◽  
...  

ABSTRACT Bacterial live-vector vaccines aim to deliver foreign antigens to the immune system and induce protective immune responses, and surface-expressed or secreted antigens are generally more immunogenic than cytoplasmic constructs. We hypothesize that an optimum expression system will use an endogenous export system to avoid the need for large amounts of heterologous DNA encoding additional proteins. Here we describe the cryptic chromosomally encoded 34-kDa cytolysin A hemolysin of Salmonella enterica serovar Typhi (ClyA) as a novel export system for the expression of heterologous antigens in the supernatant of attenuated Salmonella serovar Typhi live-vector vaccine strains. We constructed a genetic fusion of ClyA to the reporter green fluorescent protein and showed that in Salmonella serovar Typhi CVD 908-htrA, the fusion protein retains biological activity in both domains and is exported into the supernatant of an exponentially growing live vector in the absence of detectable bacterial lysis. The utility of ClyA for enhancing the immunogenicity of an otherwise problematic antigen was demonstrated by engineering ClyA fused to the domain 4 (D4) moiety of Bacillus anthracis protective antigen (PA). A total of 11 of 15 mice immunized intranasally with Salmonella serovar Typhi exporting the protein fusion manifested fourfold or greater rises in serum anti-PA immunoglobulin G, compared with only 1 of 16 mice immunized with the live vector expressing cytoplasmic D4 (P = 0.0002). In addition, the induction of PA-specific gamma interferon and interleukin 5 responses was observed in splenocytes. This technology offers exceptional versatility for enhancing the immunogenicity of bacterial live-vector vaccines.


2000 ◽  
Vol 68 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Ramya Gopinath ◽  
L. E. Hanna ◽  
V. Kumaraswami ◽  
V. Perumal ◽  
V. Kavitha ◽  
...  

ABSTRACT Treatment of patients with patent Wuchereria bancroftiinfection results in an acute clinical reaction and peripheral eosinophilia. To investigate the dynamics of the eosinophil response, changes in eosinophil activation and degranulation and plasma levels of eosinophil-active chemokines and cytokines were studied in 15 microfilaremic individuals in south India by sequential blood sampling before and after administration of 300 mg of diethylcarbamazine (DEC). Clinical symptoms occurred within 24 h. Plasma interleukin-5 (IL-5) and RANTES levels peaked 1 to 2 days posttreatment, preceding a peak peripheral eosinophil count at day 4. Major basic protein secretion from eosinophils paralleled IL-5 secretion, while levels of eosinophil-derived neurotoxin peaked at day 13 after treatment. Expression of the activation markers HLA-DR and CD25 on eosinophils rose markedly immediately after treatment, while expression of VLA-4 and α4β7 showed an early peak within 24 h and a second peak at day 13. Thus, the posttreatment reactions seen in filarial infections can be divided into an early phase with killing of microfilariae, clinical symptomatology, increases in plasma IL-5 and RANTES levels, and eosinophil activation and degranulation and a later phase with expression of surface integrins on eosinophils, recruitment of eosinophils from the bone marrow to tissues, and clearance of parasite antigen.


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