Vitamin D and L-Isoleucine Promote Antimicrobial Peptide hBD-2 Production in Peripheral Blood Mononuclear Cells from Elderly Individuals

2016 ◽  
Vol 86 (1-2) ◽  
pp. 56-61 ◽  
Author(s):  
Julio E. Castañeda-Delgado ◽  
Zajda Araujo ◽  
Irma Gonzalez-Curiel ◽  
Carmen J. Serrano ◽  
Cesar Rivas Santiago ◽  
...  

Abstract. Elderly individuals are susceptible to develop infectious diseases; promoting innate immunity to prevent infections is a key issue. Human β-defensin-2 (hBD-2) is an antimicrobial peptide with antimicrobial and immunomodulatory properties. L-isoleucine and vitamin D are important molecules that induce hBD-2. The Aim of this study was to determine the use L-isoleucine and Vitamin D to induce hBD-2 in cells from healthy elderly individuals and elderly individuals with recurrent infections. We explored three groups: young adults (n = 20) used as control group, elderly adults (n = 18) and elderly with recurrent infections (n = 11). PBMCs (peripheral blood mononuclear cells) were isolated from the different groups and then were treated with L-isoleucine or vitamin D3. hBD-2 concentration was assessed with a sandwich enzyme Immunosorbent assay by triplicate. Using the vehicle as a mock control. Our results showed that a percentage of the individuals responded to the treatments producing hBD-2 (p < 0.05). These results showed that both molecules induced hBD-2 in elderly individuals and can be potentially used as prophylactic therapy to decrease infection diseases rates in this vulnerable group.

2021 ◽  
Vol 10 (10) ◽  
pp. 2213
Author(s):  
Alessia Scatena ◽  
Pasquale Petruzzi ◽  
Filippo Maioli ◽  
Francesca Lucaroni ◽  
Cristina Ambrosone ◽  
...  

Peripheral blood mononuclear cells (PBMNCs) are reported to prevent major amputation and healing in no-option critical limb ischemia (NO-CLI). The aim of this study is to evaluate PBMNC treatment in comparison to standard treatment in NO-CLI patients with diabetic foot ulcers (DFUs). The study included 76 NO-CLI patients admitted to our centers because of CLI with DFUs. All patients were treated with the same standard care (control group), but 38 patients were also treated with autologous PBMNC implants. Major amputations, overall mortality, and number of healed patients were evaluated as the primary endpoint. Only 4 out 38 amputations (10.5%) were observed in the PBMNC group, while 15 out of 38 amputations (39.5%) were recorded in the control group (p = 0.0037). The Kaplan–Meier curves and the log-rank test results showed a significantly lower amputation rate in the PBMNCs group vs. the control group (p = 0.000). At two years follow-up, nearly 80% of the PBMNCs group was still alive vs. only 20% of the control group (p = 0.000). In the PBMNC group, 33 patients healed (86.6%) while only one patient healed in the control group (p = 0.000). PBMNCs showed a positive clinical outcome at two years follow-up in patients with DFUs and NO-CLI, significantly reducing the amputation rate and improving survival and wound healing. According to our study results, intramuscular and peri-lesional injection of autologous PBMNCs could prevent amputations in NO-CLI diabetic patients.


PLoS ONE ◽  
2019 ◽  
Vol 14 (9) ◽  
pp. e0222878 ◽  
Author(s):  
Sandra M. Gonzalez ◽  
Wbeimar Aguilar-Jimenez ◽  
Edison Trujillo-Gil ◽  
Wildeman Zapata ◽  
Ruey-Chyi Su ◽  
...  

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Niloofar Ghanizade ◽  
Maral Hemati ◽  
Habib Jaafarinejad ◽  
Mehrnoosh Pashaei ◽  
Parviz Kokhaei

Background: The incidence of B-chronic lymphocytic leukemia (B-CLL) resulting from the clonal accumulation of apoptosis-resistant malignant B lymphocytes is growing in the adult population of Iran. Inhibitors of apoptosis proteins (IAPs) are considered as factors that can delay the onset of CLL cell apoptosis. Berberine is an isoquinoline alkaloid isolated from Cotridis rhizoma that exhibits anti-tumor activities through various mechanisms. Objectives: In this study, we investigated the impact of berberine on the level of Apollon expression in peripheral blood mononuclear cells (PBMCs) of 12 cases newly diagnosed with CLL and 6 healthy donors. Methods: At first, the level of Apollon expression was assessed in PBMCs of CLL patients compared to the healthy donors. Peripheral blood mononuclear cells were cultured in RPMI-1640 medium with 5% fetal bovine serum (FBS) and 1% penicillin/streptomycin for 48 hours, and the effect of berberine (25 µM) on the level of Apollon expression in CLL patients was assessed and compared to that of healthy donors. Results: We found that the expression level of Apollon was not significantly different between CLL patients and healthy donors (P = 0.640). Moreover, berberine induced no significant differences in Apollon expression as compared to the untreated (control) group (P = 0.545 and P = 0.267 in CLL patients and healthy donors, respectively). Conclusions: Overall, our results suggest that berberine has no direct effect on the expression of Apollon gene in CLL patients, and pro-apoptotic impacts of berberine may be exerted through other mechanisms.


Author(s):  
Agata Krawczyk ◽  
Barbara Strzałka-Mrozik ◽  
Dominika Wcisło-Dziadecka ◽  
Magdalena Kimsa-Dudek ◽  
Celina Kruszniewska-Rajsa ◽  
...  

IntroductionThe primary goal of psoriasis treatment is to reduce the inflammatory response and associated complications. In severe cases of psoriasis that are resistant to local treatment (e.g., keratolytic preparations) and at least two types of general treatment methods (e.g., retinoids and cyclosporine A), biological therapy is used. This study aimed to assess the systemic effects of adalimumab at a given stage of treatment in patients with psoriatic arthritis and evaluate how the drug can improve the clinical condition of the patients.Material and methodsThe study group consisted of patients with diagnosed psoriatic arthritis, while the control group consisted of individuals from whom peripheral blood mononuclear cells were obtained. The effects of the administration of adalimumab were assessed by analyzing the gene expression using oligonucleotide microarrays.ResultsThe apoptosis process was indicated as one of the overrepresented categories (the PANTHER classification system 13.1 program, overrepresentativity test, p < 0.05). The dermatological indexes decreased, indicating an improvement in the clinical conditions of the patients three months after the first dose of adalimumab.ConclusionsWe found that adalimumab affects apoptosis, which is crucial in the development and course of psoriasis. The differential gene expression in peripheral blood mononuclear cells of patients with psoriatic arthritis indicated the potential systemic effects of adalimumab therapy. The analyses of dermatological (the Psoriasis Area And Severity Index, body surface area and Dermatology Life Quality Index) and inflammatory (Biernacki’s reaction) parameters revealed the effectiveness of the therapy.


2018 ◽  
Vol 47 (2) ◽  
pp. 132
Author(s):  
Budi Utama ◽  
Heri Wibowo ◽  
Niken Lestari Poerbonegoro

Latar belakang: Rinitis alergi (RA) adalah penyakit inflamasi pada hidung, yang disebabkan oleh reaksi alergi pada pasien atopi. Tungau debu rumah merupakan aeroalergen yang tersering memicu reaksi alergi. Pada tahun 1988, reseptor vitamin D berhasil dilakukan klon. Reseptor vitamin D berlokasi di beberapa jaringan dan sel tubuh manusia, termasuk di sel-sel darah tepi berinti tunggal (peripheral blood mononuclear cells/PMBC). Tujuan: Mengidentifikasi pengaruh pemberian vitamin D pada sel-sel darah tepi berinti tunggal penderita rinitis alergi terhadap sel Th1, Th2, dan T Regulator, dengan cara melihat sekresi IFN-γ, IL-10, dan histamin. Metode: Sampel berupa darah segar (whole blood) penderita rinitis alergi yang telah dilakukan prick test, diolah dengan metode Ficoll untuk mengisolasi sel berinti tunggal. Kultur sel limfosit sebelum perlakuan dibagi menjadi kelompok yang diberi pendedahan dengan 1,25(OH)2D3 100 nM dan tanpa pendedahan, waktu inkubasi 7 hari, dengan penambahan phytohaemaglutinin dan alergen tungau pada hari ke-4. Kultur sel-sel darah tepi berinti tunggal dari pasien RA setelah perlakuan, selanjutnya pada hari ke-7 supernatannya diambil dan dibagi untuk diukur kadar sitokin IFN-γ, IL-10, dan histamin secara ELISA. Dilakukan uji secara statistik untuk melihat pola dari tiap parameter. Hasil: Pemberian alergen tungau tanpa vitamin D menyebabkan meningkatnya kadar histamin serta menurunkan kadar IL-10 dan IFN-γ. Pemberian vitamin D pada kultur sel darah tepi berinti tunggal yang telah diberi alergen tungau, dapat meningkatkan kadar IL-10 dan menurunkan kadar IFN-γ, serta histamin. Kesimpulan: Menurunnya kadar histamin dan IFN-γ terhadap stimulasi alergen tungau pada pasien rinitis alergi yang diberi vitamin D cenderung berhubungan dengan meningkatnya kadar IL-10. Kata kunci: Sel mast, rinitis alergi, tungau debu rumah, vitamin D ABSTRACT Background: Allergic rhinitis is an inflammatory disease of the nose, caused by an allergic reaction in atopic patients. House dust mites are the most common aeroalergen. In 1988, vitamin D receptor had been cloned successfully. Vitamin D receptors are located in various tissues and human body cells, including peripheral blood mononuclear cells (PBMCs). Purpose: To identify the effect of vitamin D on peripheral blood mononuclear cells culture of allergic rhinitis patients towards Th1, Th2, and T Regulator cell, by identifying IL-10, IFN-γ, and histamine secretion levels. Method: The sample were obtained from fresh blood (whole blood) of allergic rhinitis patients who had been prick tested, and isolated by Ficoll method. Pre-treated lymphocyte culture divided into groups treated with and without 1,25(OH)2D3 100 nM, and incubated for 7 days, with addition of phytohaemaglutinin and allergen mites on day 4. Cultures of PBMC cells after treatment were harvested on day 7, then the supernatant was dialyzed to measure the levels of IFN-γ IL-10 and histamine cytokines. Statistical test was performed to identify patterns of each parameter. Results: Treatment of allergen mites without vitamin D could increase levels of histamine and lower levels of IL-10 and IFN-γ. Provision of vitamin D in PBMC cell culture that had been given allergen mites could increase levels of IL-10 and decreased levels of IFN-γ and histamine. Conclusion: Lower levels of histamine and IFN-γ against allergen mite stimulation of allergic rhinitis patients who were given vitamin D tend to be associated with increased IL-10 levels. Keywords: Mast cell, allergic rhinitis, house dust mite, vitamin D


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