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Kawa MP, Sobuś A, Pius-Sadowska E, Łuczkowska K, Rogińska D, Wnęk S, Paczkowska E, Walczak M, Syrenicz A, Machaliński B. Apoptosis Evaluation in Circulating CD34+-Enriched Hematopoietic Stem and Progenitor Cells in Patients with Abnormally Increased Production of Endogenous Glucocorticoids in Course of Cushing's Syndrome. Int J Mol Sci 2022; 23:ijms232415794. [PMID: 36555435 PMCID: PMC9779045 DOI: 10.3390/ijms232415794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/29/2022] [Accepted: 12/03/2022] [Indexed: 12/15/2022] Open
Abstract
Abnormalities in hematological parameters of peripheral blood have been noted in patients with endogenous Cushing's Syndrome (CS) in the corticotropin (ACTH)-dependent and ACTH-independent forms. Nevertheless, the exact mechanism of glucocorticoids (GCs) action on human hematopoiesis is still not entirely clear. The aim of the study was to determine whether endogenous excessive production of GCs could affect apoptosis of CD34+ cells enriched in hematopoietic stem and progenitor cells (HSPCs) collected from the peripheral blood of newly diagnosed CS patients. Flow cytometry, Annexin-V enzyme-linked immunosorbent assay, TUNEL assay, real-time quantitative PCR, and microarray RNA/miRNA techniques were used to characterize CS patients' HSPCs. We found that the glucocorticoid receptor (GR) protein expression levels in CS were higher than in healthy controls. A complex analysis of apoptotic status of CS patients' HSPC cells showed that GCs significantly augmented apoptosis in peripheral blood-derived CD34+ cells and results obtained using different methods to detect early and late apoptosis in analyzed cell population were consistent. CS was also associated with significant upregulation in several members of the BCL-2 superfamily and other genes associated with apoptosis control. Furthermore, global gene expression analysis revealed significantly higher expression of genes associated with programmed cell death control in HSPCs from CS patients. These findings suggest that human endogenous GCs have a direct pro-apoptotic activity in hematopoietic CD34+ cells derived from CS subjects before treatment.
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Affiliation(s)
- Miłosz P. Kawa
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Anna Sobuś
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Ewa Pius-Sadowska
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Karolina Łuczkowska
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Dorota Rogińska
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Szymon Wnęk
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Edyta Paczkowska
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
| | - Mieczysław Walczak
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University in Szczecin, 1 Unii Lubelskiej Street, 71-252 Szczecin, Poland
| | - Anhelli Syrenicz
- Department of Endocrinology, Metabolic Diseases and Internal Diseases, Pomeranian Medical University in Szczecin, 1 Unii Lubelskiej Street, 71-252 Szczecin, Poland
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University in Szczecin, 72 Powstancow Wlkp. Street, 70-111 Szczecin, Poland
- Correspondence: ; Tel.: +48-91-4661-546; Fax: +48-91-4661-548
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Rodrigo-Muñoz JM, Sastre B, Sánchez-García L, García-García ML, Gonzalez-Carrasco E, Fabra C, Gil-Martínez M, Lorente-Sorolla C, García-Latorre R, Alcolea S, Casas I, Calvo C, Del Pozo V. Filaggrin and cytokines in respiratory samples of preterm infants at risk for respiratory viral infection. Sci Rep 2022; 12:21278. [PMID: 36482106 DOI: 10.1038/s41598-022-25897-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Respiratory viral infections (RVIs) are frequent in preterm infants possibly inducing long-term impact on respiratory morbidity. Immune response and respiratory barriers are key defense elements against viral insults in premature infants admitted to Neonatal Intensive Care Units (NICUs). Our main goals were to describe the local immune response in respiratory secretions of preterm infants with RVIs during NICU admission and to evaluate the expression and synthesis of lung barrier regulators, both in respiratory samples and in vitro models. Samples from preterm infants that went on to develop RVIs had lower filaggrin gene and protein levels at a cellular level were compared to never-infected neonates (controls). Filaggrin, MIP-1α/CCL3 and MCP-1 levels were higher in pre-infection supernatants compared to controls. Filaggrin, HIF-1α, VEGF, RANTES/CCL5, IL-17A, IL-1β, MIP-1α and MIP-1β/CCL5 levels were higher during and after infection. ROC curve and logistic regression analysis shows that these molecules could be used as infection risk biomarkers. Small airway epithelial cells stimulated by poly:IC presented reduced filaggrin gene expression and increased levels in supernatant. We conclude that filaggrin gene and protein dysregulation is a risk factor of RVI in newborns admitted at the NICU.
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Zhang L, Cao L, Feng P, Han X, Yang L. Complement regulation in ovine lymph nodes during early pregnancy. Exp Ther Med 2021; 23:166. [PMID: 35069847 PMCID: PMC8753979 DOI: 10.3892/etm.2021.11089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/08/2021] [Indexed: 11/05/2022] Open
Abstract
A fetus changes immune responses in the uterus and the maternal immune system, and lymph nodes are associated with regulating maternal adaptive immunity. Complement activation is associated with abnormal pregnancy in mice and humans. The aim of the present study was to explore the expression levels of complement components in maternal lymph nodes during early pregnancy in sheep. Maternal inguinal lymph nodes were sampled on day 16 of the estrous cycle, and days 13, 16 and 25 of gestation in ewes. Reverse transcription-quantitative PCR, western blotting and immunohistochemical analyses were used to detect the expression levels of complement components C1q, C1r, C1s, C2, C3, C4a, C5b and C9 in the lymph nodes. The results revealed that the protein and mRNA levels of C1q, C1s and C5b were enhanced during early pregnancy, and that C1r and C4a were upregulated at day 25 of pregnancy. The mRNA and protein levels of C2 and C9 peaked at day 16 of pregnancy, but C3 was decreased at day 25 of pregnancy. C3 protein was located in the subcapsular sinuses and lymph sinuses of the maternal lymph node. In summary, the present study detected changes in the expression levels of complement components in maternal lymph nodes, which may be associated with maternal immune regulation during early pregnancy in sheep.
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Affiliation(s)
- Leying Zhang
- Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
| | - Lidong Cao
- Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
| | - Pengfei Feng
- Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
| | - Xu Han
- Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
| | - Ling Yang
- Department of Animal Science, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
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