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Ito M, Sasaki A, Haga M, Iwatani A, Nishimura E, Arai H, Nagano N, Suga S, Araki S, Konishi A, Onouchi Y, Namba F. Association of hyaluronan and proteoglycan link protein 1 gene with the need of home oxygen therapy in premature Japanese infants with bronchopulmonary dysplasia. J Matern Fetal Neonatal Med 2024; 37:2332914. [PMID: 38522947 DOI: 10.1080/14767058.2024.2332914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/13/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) has a lasting effect on the respiratory function of infants, imposing chronic health burdens. BPD is influenced by various prenatal, postnatal, and genetic factors. This study explored the connection between BPD and home oxygen therapy (HOT), and then we examined the association between HOT and a specific single-nucleotide polymorphism (SNP) in the hyaluronan and proteoglycan link protein 1 (HAPLN1) gene among premature Japanese infants. MATERIALS AND METHODS Prenatal and postnatal data from 212 premature infants were collected and analyzed by four SNPs (rs975563, rs10942332, rs179851, and rs4703570) around HAPLN1 using the TaqMan polymerase chain reaction method. The clinical characteristics and genotype frequencies of HAPLN1 were assessed and compared between HOT and non-HOT groups. RESULTS Individuals with AA/AC genotypes in the rs4703570 SNP exhibited significantly higher HOT rates at discharge than those with CC homozygotes (odds ratio, 1.20, 95% confidence interval, 1.07-1.35, p = .038). A logistic regression analysis determined that CC homozygotes in the rs4703570 SNP did not show a statistically significant independent association with HOT at discharge. CONCLUSIONS Although our study did not reveal a correlation between HAPLN1 and the onset of BPD, we observed that individuals with CC homozygosity at the rs4703570 SNP exhibit a reduced risk of HOT.
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Affiliation(s)
- Masato Ito
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - Ayumi Sasaki
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Mitsuhiro Haga
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Ayaka Iwatani
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Eri Nishimura
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Hirokazu Arai
- Department of Neonatology, Akita Red Cross Hospital, Akita, Japan
| | - Nobuhiko Nagano
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Itabashi, Japan
| | - Shutaro Suga
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shunsuke Araki
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Asami Konishi
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Yoshihiro Onouchi
- Department of Public Health, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Fumihiko Namba
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
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Markasz L, Mobini-Far H, Sindelar R. Collagen type IV alpha 1 chain (COL4A1) expression in the developing human lung. BMC Pulm Med 2024; 24:75. [PMID: 38331745 PMCID: PMC10851591 DOI: 10.1186/s12890-024-02875-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Collagen type IV alpha 1 chain (COL4A1) in the basement membrane is an important component during lung development, as suggested from animal models where COL4A1 has been shown to regulate alveolarization and angiogenesis. Less is known about its role in human lung development. Our aim was to study COL4A1 expression in preterm infants with different lung maturational and clinical features. METHODS COL4A1 expression in 115 lung samples from newborn infants (21-41 weeks' gestational age; 0-228 days' postnatal age [PNA]) was studied by immunohistochemistry combined with digital image analysis. Cluster analysis was performed to find subgroups according to immunohistologic and clinical data. RESULTS Patients were automatically categorized into 4 Groups depending on their COL4A1 expression. Expression of COL4A1 was mainly extracellular in Group 1, low in Group 2, intracellular in Group 3, and both extra- and intracellular in Group 4. Intracellular/extracellular ratio of COL4A1 expression related to PNA showed a distinctive postnatal maturational pattern on days 1-7, where intracellular expression of COL4A1 was overrepresented in extremely preterm infants. CONCLUSIONS COL4A1 expression seems to be highly dynamic during the postnatal life due to a possible rapid remodeling of the basement membrane. Intracellular accumulation of COL4A1 in the lungs of extremely premature infants occurs more frequently between 1 and 7 postnatal days than during the first 24 hours. In view of the lung arrest described in extremely preterm infants, the pathological and/or developmental role of postnatally increased intracellular COL4A1 as marker for basement membrane turnover, needs to be further investigated.
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Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, SE-751 85, Sweden.
| | - Hamid Mobini-Far
- Department of Pathology, Uppsala University Hospital, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, SE-751 85, Sweden
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HIF-1 α Is Associated with Resistance to Hypoxia-Induced Apoptosis in Ameloblastoma. Int J Dent 2022; 2021:3060375. [PMID: 34987583 PMCID: PMC8723839 DOI: 10.1155/2021/3060375] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 12/24/2022] Open
Abstract
Background Ameloblastoma (AMB) is a benign odontogenic tumour, with an aggressive local behaviour and a high rate of recurrence. Previous studies have demonstrated that hypoxia-induced factor alpha 1 (HIF-1α) and activated caspase-3 contribute to tumour invasiveness and cytogenesis in ameloblastoma. Hypoxia increases HIF-1α levels, which triggers a number of signalling pathways. This paper aimed to present data in the study of hypoxia-activated signalling pathways that modulate proapoptotic and antiapoptotic events in AMB. Methods Twenty cases of AMB and ten cases of dental follicle (DF) were used to analyse the immunoexpression of HIF-1α, p53, BNIP3, Bcl-2, IAP-2, GLUT1, and Bax. To contribute to the study, an analysis of expression and genetic interaction was performed using the cell line AME-1. Results AMB and DF expressed the studied proteins. These proteins showed significantly greater immunoexpression in AMB compared with the DF (p < 0.05). HIF-1α showed an important association with GLUT1, and a positive correlation was observed among p53, Bcl-2, and IAP-2. Transcriptomic analysis showed the significant expression of the studied proteins, and the network generated showed a direct association of HIF-1αF with GLUT1 (SLC2A1), TP53, and LDHA. Interestingly, GLUT1 also exhibited direct interaction with TP53 and LDHA. Conclusion In AMB tumorigenesis, hypoxia is possibly related to antiapoptotic events, which suggests an important role for HIF-1α, GLUT1, Bcl-2, IAP-2, and possibly p53.
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Markasz L, Savani RC, Jonzon A, Sindelar R. CD44 and RHAMM expression patterns in the human developing lung. Pediatr Res 2021; 89:134-142. [PMID: 32311697 DOI: 10.1038/s41390-020-0873-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 03/11/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND The hyaluronan (HA) receptors CD44 and RHAMM (CD168) are involved in cellular proliferation, differentiation, and motility. As previously investigated, HA and RHAMM expression in human neonatal lungs correlates to gestational age (GA) and air content. METHODS CD44 immunofluorescence was analyzed in postmortem lung samples from infants (n = 93; 22-41 GA) by digital image analysis together with clinical data, including RHAMM expression, lung air, and HA content by hierarchical clustering. RESULTS Five groups were defined according to RHAMM/CD44 expression, GA, and postnatal age (PNA): extremely to very preterm (EVP; 22-31 GA; Groups 1-2), moderately preterm to term (MPT; 31-41 GA; Groups 3-4), and mixed preterm to term (27-40 GA; Group 5). CD44 correlated linearly with RHAMM in MPT (r = 0.600; p < 0.004). In EVP, high CD44 and low RHAMM corresponded with high PNA and lung air content independently of HA and GA (Group 1 vs 2; p < 0.05). In MPT, high and low CD44 corresponded with low and high RHAMM independently of GA, HA, and lung air content (Group 3 vs 4; p < 0.001). No correlation between CD44 and GA/PNA at death was observed. CONCLUSIONS A linear correlation between CD44 and RHAMM expression occurs during the late saccular phase of lung development at birth, whereas postnatal influences on CD44 and RHAMM expression in extremely to very preterm infants cannot be excluded. IMPACT The interplay between CD44 and RHAMM, two receptors of hyaluronic acid, can be dependent on the lung developmental stage at birth. This is the second study that analyzes the distribution pattern of CD44 in the human lung during development and the first study performed with quantitative analysis of CD44 expression together with RHAMM expression in the human lung. Our results suggest a relationship in a subset of infants between CD44 and RHAMM expression, which appears at birth during the late saccular stage but not during the earlier stages of lung development.
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Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
| | - Rashmin C Savani
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Anders Jonzon
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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Markasz L, Olsson KW, Holmström G, Sindelar R. Cluster Analysis of Early Postnatal Biochemical Markers May Predict Development of Retinopathy of Prematurity. Transl Vis Sci Technol 2020; 9:14. [PMID: 33344058 PMCID: PMC7726592 DOI: 10.1167/tvst.9.13.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Growth factors and inflammatory and angiogenetic proteins are involved in the development of retinopathy of prematurity (ROP). However, no early biochemical markers are in clinical use to predict ROP. By performing cluster analysis of multiple biomarkers, we aimed to determine patient groups with high and low risk for developing ROP. Methods In total, 202 protein markers in plasma were quantified by proximity extension assay from 35 extremely preterm infants on day 2 of life. Infants were sorted in groups by automated two-dimensional hierarchical clustering of all biomarkers. ROP was classified as stages I to III with or without surgical treatment. Predictive biomarkers were evaluated by analysis of variance and detected differences by two-sided paired t-test with Bonferroni corrections for multiple comparisons. Results Differences in 39 biochemical markers divided infants without ROP into two control groups (control 1, n = 7; control 2, n = 5; P < 0.05). Sixty-six biochemical markers defined differences between the control groups (n = 13) and all ROP infants (n = 23; P < 0.05). PARK7, VIM, MPO, CD69, and NEMO were markedly increased in control 1 compared to all ROP infants (P < 0.001). Lower TNFRSF4 and higher HER2 and GAL appeared in infants with ROP as compared to control 1 and/or 2 (P < 0.05, respectively). Conclusions Our data suggest that early elevated levels of PARK7, VIM, MPO, CD69, and NEMO may be associated with lower risk of developing ROP. Lower levels of TNFRSF4 with higher levels of HER2 and GAL may predict ROP development. Translational Relevance Cluster analysis of early postnatal biomarkers may help to identify infants with low or high risk of developing ROP.
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Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Karl-Wilhelm Olsson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Gerd Holmström
- Department of Neuroscience/Ophthalmology, Uppsala University, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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Wu KY, Kim S, Liu VM, Sabino A, Minkhorst K, Yazdani A, Turley EA. Function-Blocking RHAMM Peptides Attenuate Fibrosis and Promote Antifibrotic Adipokines in a Bleomycin-Induced Murine Model of Systemic Sclerosis. J Invest Dermatol 2020; 141:1482-1492.e4. [PMID: 33242499 DOI: 10.1016/j.jid.2019.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 10/28/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022]
Abstract
Systemic sclerosis a chronic, fibrotic disorder associated with high disease-specific mortality and morbidity. Cutaneous manifestations include dermal thickening and obliteration of dermal adipose tissue. Accumulation of low-molecular-weight hyaluronan, which signals through the receptor for hyaluronan-mediated motility, RHAMM, leads to progressive fibrosis and is correlated with increased severity of systemic sclerosis. The purpose of this study is to test the efficacy of two function-blocking RHAMM peptides, NPI-110 and NPI-106, in reducing skin fibrosis in a bleomycin-induced mouse model of systemic sclerosis. NPI-110 reduced visible measures of fibrosis (dermal thickness and collagen production, deposition, and organization) and profibrotic gene expression (Tgfb1, c-Myc, Col1a1, Col3a1). NPI-110 treatment also increased the expression of the antifibrotic adipokines perilipin and adiponectin. Both RHAMM peptides strongly reduced dermal RHAMM expression, predicting that dermal fibroblasts are peptide targets. Transcriptome and cell culture analyses using Rhamm-/- and Rhamm-rescued dermal fibroblasts reveal a TGFβ1/RHAMM/MYC signaling axis that promotes fibrogenic gene expression and myofibroblast differentiation. RHAMM function‒blocking peptides suppress this signaling and prevent TGFβ1-induced myofibroblast differentiation. These results suggest that inhibiting RHAMM signaling will offer a treatment method for cutaneous fibrosis in systemic sclerosis.
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Affiliation(s)
- Kitty Yuechuan Wu
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada
| | - Stephanie Kim
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada; Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Violet Muhan Liu
- Department of Biochemistry, Western University, London, Ontario, Canada
| | - Alexis Sabino
- Department of Life Sciences, Queen's University, Kingston, Ontario, Canada
| | - Kathryn Minkhorst
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Arjang Yazdani
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada
| | - Eva A Turley
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada.
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