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Wang Z, Zhang J, Luo L, Zhang C, Huang X, Liu S, Chen H, Miao W. Nucleoporin 93 Regulates Cancer Cell Growth and Stemness in Bladder Cancer via Wnt/β-Catenin Signaling. Mol Biotechnol 2024:10.1007/s12033-024-01184-9. [PMID: 38744786 DOI: 10.1007/s12033-024-01184-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/16/2024] [Indexed: 05/16/2024]
Abstract
Bladder cancer (BLCA) is a prevalent cancer type with an unmet need for new therapeutic strategies. Nucleoporin 93 (Nup93) is implicated in the pathophysiology of several cancers, but its relationship with bladder cancer remains unclear. Nup93 expression was analyzed in TCGA datasets and 88 BLCA patient samples. Survival analysis and Cox regression models evaluated the association between Nup93 levels and patient prognosis. BLCA cells were used to investigate the effects of Nup93 overexpression or knockdown on cell growth, invasion, stemness (sphere formation and ALDH2 + cancer stem cell marker), and Wnt/β-catenin signaling in vitro. The Wnt activator BML-284 was used to confirm the involvement of Wnt/β-catenin signaling pathway. A xenograft mouse model validated the in vitro findings. Nup93 was highly expressed in BLCA tissues and cell lines, and high Nup93 expression correlated with poor prognosis in BLCA patients. Nup93 silencing inhibited BLCA cell proliferation, Wnt/β-catenin activation, and cancer cell stemness. Conversely, Nup93 overexpression promoted these effects. BML-284 partially rescued the reduction in cell growth and stemness markers caused by Nup93 knockdown. Nup93 knockdown also suppressed the tumor formation of BLCA cells in vivo. Nup93 regulates BLCA cell growth and stemness via the Wnt/β-catenin pathway, suggesting its potential as a prognostic marker and therapeutic target in BLCA.
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Affiliation(s)
- Zhe Wang
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Jing Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Lina Luo
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Chao Zhang
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Xiaomeng Huang
- Medical Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Shuo Liu
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Huaian Chen
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China
| | - Wenlong Miao
- Urology Department, The First Affiliated Hospital of Hebei North University, No. 12, Changqing Road, Zhangjiakou, 050051, Hebei Province, China.
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Hazan JM, Amador R, Ali-Nasser T, Lahav T, Shotan SR, Steinberg M, Cohen Z, Aran D, Meiri D, Assaraf YG, Guigó R, Bester AC. Integration of transcription regulation and functional genomic data reveals lncRNA SNHG6's role in hematopoietic differentiation and leukemia. J Biomed Sci 2024; 31:27. [PMID: 38419051 PMCID: PMC10900714 DOI: 10.1186/s12929-024-01015-8] [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: 07/21/2023] [Accepted: 02/22/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are pivotal players in cellular processes, and their unique cell-type specific expression patterns render them attractive biomarkers and therapeutic targets. Yet, the functional roles of most lncRNAs remain enigmatic. To address the need to identify new druggable lncRNAs, we developed a comprehensive approach integrating transcription factor binding data with other genetic features to generate a machine learning model, which we have called INFLAMeR (Identifying Novel Functional LncRNAs with Advanced Machine Learning Resources). METHODS INFLAMeR was trained on high-throughput CRISPR interference (CRISPRi) screens across seven cell lines, and the algorithm was based on 71 genetic features. To validate the predictions, we selected candidate lncRNAs in the human K562 leukemia cell line and determined the impact of their knockdown (KD) on cell proliferation and chemotherapeutic drug response. We further performed transcriptomic analysis for candidate genes. Based on these findings, we assessed the lncRNA small nucleolar RNA host gene 6 (SNHG6) for its role in myeloid differentiation. Finally, we established a mouse K562 leukemia xenograft model to determine whether SNHG6 KD attenuates tumor growth in vivo. RESULTS The INFLAMeR model successfully reconstituted CRISPRi screening data and predicted functional lncRNAs that were previously overlooked. Intensive cell-based and transcriptomic validation of nearly fifty genes in K562 revealed cell type-specific functionality for 85% of the predicted lncRNAs. In this respect, our cell-based and transcriptomic analyses predicted a role for SNHG6 in hematopoiesis and leukemia. Consistent with its predicted role in hematopoietic differentiation, SNHG6 transcription is regulated by hematopoiesis-associated transcription factors. SNHG6 KD reduced the proliferation of leukemia cells and sensitized them to differentiation. Treatment of K562 leukemic cells with hemin and PMA, respectively, demonstrated that SNHG6 inhibits red blood cell differentiation but strongly promotes megakaryocyte differentiation. Using a xenograft mouse model, we demonstrate that SNHG6 KD attenuated tumor growth in vivo. CONCLUSIONS Our approach not only improved the identification and characterization of functional lncRNAs through genomic approaches in a cell type-specific manner, but also identified new lncRNAs with roles in hematopoiesis and leukemia. Such approaches can be readily applied to identify novel targets for precision medicine.
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Affiliation(s)
- Joshua M Hazan
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Raziel Amador
- Centre for Genomic Regulation (CRG), Doctor Aiguader 88, 08003, Barcelona, Catalonia, Spain
- Universitat de Barcelona (UB), Barcelona, Catalonia, Spain
| | - Tahleel Ali-Nasser
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Tamar Lahav
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Stav Roni Shotan
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Miryam Steinberg
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Ziv Cohen
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
- The Taub Faculty of Computer Science, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Dvir Aran
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
- The Taub Faculty of Computer Science, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - David Meiri
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel
| | - Roderic Guigó
- Centre for Genomic Regulation (CRG), Doctor Aiguader 88, 08003, Barcelona, Catalonia, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Catalonia, Spain
| | - Assaf C Bester
- Department of Biology, Technion-Israel Institute of Technology, 3200003, Haifa, Israel.
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Zhou Y, Li X, Zhang X, Li M, Luo N, Zhao Y. Screening of Candidate Housekeeping Genes in Uterus Caruncle by RNA-Sequence and qPCR Analyses in Different Stages of Goat ( Capra hircus). Animals (Basel) 2023; 13:1897. [PMID: 37370406 DOI: 10.3390/ani13121897] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
The uterus is a critical pregnancy organ for mammals. The normal growth and development of ruminant uterus caruncles are crucial to maintain gestation and fetal health in goats. Quantitative real-time polymerase chain reaction (qRT-PCR) is a reliable tool to study gene expression profiling for exploring the intrinsic mechanism underlying the conversion process of uterus caruncle tissue. However, the candidate housekeeping genes (HKGs) are required for normalizing the expression of function genes. In our study, 22 HKGs were selected from analyzing transcriptome data at non-pregnancy and pregnancy processes and previous reports about HKGs in goat tissues. We assessed them for expression suitability in 24 samples from uterus tissues at 15 non-pregnant days (Stage 1), early (Stage 2), and medium-later pregnant days (Stage 3). The expression stability of these genes was evaluated by using geNorm, Normfinder, Bestkeeper, and Delta Ct algorithms and, comprehensively, by ReFinder. In addition, the most and least stable HKGs were used to normalize the target genes expression of SPP1, VEGFA, and PAG8. It was found that traditional reference genes, such as ACTB and GAPDH, were not suitable for target gene normalization. In contrast, PPIB selected from RNA sequencing data and EIF3K selected from previous references showed the least variation and were recommended as the best HKGs during the nonpregnant stage and the whole stages of goat uterus caruncle tissue, respectively. It is the first time the HKGs genes in uterus during the non-pregnant day and throughout the total pregnancy have been explored. These findings found suitable HKGs in uterus caruncle tissues at various stages of non-pregnancy and pregnancy; these can be useful for gene expression studies to reveal the molecular mechanisms of uterus development in goats.
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Affiliation(s)
- Yumei Zhou
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
| | - Xingchun Li
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
| | - Xinyue Zhang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
| | - Minghui Li
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
| | - Nanjian Luo
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
- School of Preclinical Medicine, Zunyi Medical University, Zunyi 563000, China
| | - Yongju Zhao
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Herbivore Science, Chongqing Key Laboratory of Forage and Herbivore, Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization, Chongqing Herbivore Engineering Research Center, Chongqing 400715, China
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Claesen K, De Loose J, Van Wielendaele P, De bruyn E, Sim Y, Thys S, De Meester I, Hendriks D. ProCPU Is Expressed by (Primary) Human Monocytes and Macrophages and Expression Differs between States of Differentiation and Activation. Int J Mol Sci 2023; 24:ijms24043725. [PMID: 36835137 PMCID: PMC9967989 DOI: 10.3390/ijms24043725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/29/2023] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
Carboxypeptidase U (CPU, TAFIa, CPB2) is a potent attenuator of fibrinolysis that is mainly synthesized by the liver as its inactive precursor proCPU. Aside from its antifibrinolytic properties, evidence exists that CPU can modulate inflammation, thereby regulating communication between coagulation and inflammation. Monocytes and macrophages play a central role in inflammation and interact with coagulation mechanisms resulting in thrombus formation. The involvement of CPU and monocytes/macrophages in inflammation and thrombus formation, and a recent hypothesis that proCPU is expressed in monocytes/macrophages, prompted us to investigate human monocytes and macrophages as a potential source of proCPU. CPB2 mRNA expression and the presence of proCPU/CPU protein were studied in THP-1, PMA-stimulated THP-1 cells and primary human monocytes, M-CSF-, IFN-γ/LPS-, and IL-4-stimulated-macrophages by RT-qPCR, Western blotting, enzyme activity measurements, and immunocytochemistry. CPB2 mRNA and proCPU protein were detected in THP-1 and PMA-stimulated THP-1 cells as well as in primary monocytes and macrophages. Moreover, CPU was detected in the cell medium of all investigated cell types and it was demonstrated that proCPU can be activated into functionally active CPU in the in vitro cell culture environment. Comparison of CPB2 mRNA expression and proCPU concentrations in the cell medium between the different cell types provided evidence that CPB2 mRNA expression and proCPU secretion in monocytes and macrophages is related to the degree to which these cells are differentiated. Our results indicate that primary monocytes and macrophages express proCPU. This sheds new light on monocytes and macrophages as local proCPU sources.
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Affiliation(s)
- Karen Claesen
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Joni De Loose
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Pieter Van Wielendaele
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Emilie De bruyn
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Yani Sim
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Sofie Thys
- Laboratory of Cell Biology and Histology, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Ingrid De Meester
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Dirk Hendriks
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
- Correspondence: ; Tel.: +32-3-265-27-27
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5
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Kim SM, Studnitzer B, Esser-Kahn A. Heat Shock Protein 90's Mechanistic Role in Contact Hypersensitivity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2622-2631. [PMID: 35675957 DOI: 10.4049/jimmunol.2101023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/15/2022] [Indexed: 11/19/2022]
Abstract
Despite the known dangers of contact allergens and their long-lasting use as models in immunology, their molecular mode of action largely remains unknown. In this study, we report that a contact allergen, 1-chloro-2,4-dinitrobenzene (DNCB), elicits contact hypersensitivity through binding the protein we identify. Starting from an unbiased sampling of proteomics, we found nine candidate proteins with unique DNCB-modified peptide fragments. More than half of these fragments belonged to heat shock protein 90 (HSP90), a common stress-response protein and a damage-associated molecular pattern, and showed the highest probability of incidence. Inhibition and short hairpin RNA knockdown of HSP90 in human monocyte cell line THP-1 suppressed the potency of DNCB by >80%. Next, we successfully reduced DNCB-induced contact hypersensitivity in HSP90-knockout mice, which confirmed our findings. Finally, we hypothesized that DNCB-modified HSP90 activates the immune cells through HSP90's receptor, CD91. Pretreatment of CD91 in THP-1 cell lines and BALB/c mice attenuated the potency of DNCB, consistent with the result of HSP90-knockout mice. Altogether, our data show that DNCB-HSP90 binding plays a role in mediating DNCB-induced contact hypersensitivity, and the activation of CD91 by DNCB-modified HSP90 proteins could mediate this process.
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Affiliation(s)
- Seong-Min Kim
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL
| | - Bradley Studnitzer
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL
| | - Aaron Esser-Kahn
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL
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6
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Santamarina AB, Pisani LP, Baker EJ, Marat AD, Valenzuela CA, Miles EA, Calder PC. Anti-inflammatory effects of oleic acid and the anthocyanin keracyanin alone and in combination: effects on monocyte and macrophage responses and the NF-κB pathway. Food Funct 2021; 12:7909-7922. [PMID: 34250536 DOI: 10.1039/d1fo01304a] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Monocyte recruitment and activation of macrophages are essential for homeostasis but are also related to the development and progression of cardiometabolic diseases. The management of inflammation with dietary components has been widely investigated. Two components that may influence inflammation are unsaturated fatty acids such as oleic acid (OA; 18:1cis-9) and antioxidant compounds like anthocyanins. Molecular and metabolic effects of such bioactive compounds are usually investigated in isolation, whereas they may be present in combination in foods or the diet. Considering this, we aimed to analyze the effects of OA and the anthocyanin keracyanin (AC) alone and in combination on toll-like receptor-mediated inflammatory responses in monocytes and macrophages. For this, THP-1-derived macrophages and monocytes were exposed to 3 treatments: OA, AC, or the combination (OAAC) and then stimulated with lipopolysaccharide. Inflammation-related gene expression and protein concentrations of IL-1β, TNF-α, IL-6, MCP-1, and IL-10 were assessed. Also, NFκBp65, IκBα, and PPAR-γ protein expression were determined. OA, AC, and OAAC decreased pNFκBp65, PPARγ, IκBα, TNF-α, IL-1β, IL-6, and MCP-1 and increased IL-10. MCP-1 protein expression was lower with OAAC than with either OA and AC alone. Compared to control, OAAC decreased mRNA for TLR4, IκKα, IκBα, NFκB1, MCP-1, TNF-α, IL-6, and IL-1β more than OA or AC did alone. Also, IL-10 mRNA was increased by OAAC compared with control, OA, and AC. In summary, OA and AC have anti-inflammatory effects individually but their combination (OAAC) exerts a greater effect.
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Affiliation(s)
- Aline B Santamarina
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo, Santos, 11015-020, Brazil
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Rosier F, Brisebarre A, Dupuis C, Baaklini S, Puthier D, Brun C, Pradel LC, Rihet P, Payen D. Genetic Predisposition to the Mortality in Septic Shock Patients: From GWAS to the Identification of a Regulatory Variant Modulating the Activity of a CISH Enhancer. Int J Mol Sci 2021; 22:ijms22115852. [PMID: 34072601 PMCID: PMC8198806 DOI: 10.3390/ijms22115852] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/12/2021] [Accepted: 05/17/2021] [Indexed: 02/07/2023] Open
Abstract
The high mortality rate in septic shock patients is likely due to environmental and genetic factors, which influence the host response to infection. Two genome-wide association studies (GWAS) on 832 septic shock patients were performed. We used integrative bioinformatic approaches to annotate and prioritize the sepsis-associated single nucleotide polymorphisms (SNPs). An association of 139 SNPs with death based on a false discovery rate of 5% was detected. The most significant SNPs were within the CISH gene involved in cytokine regulation. Among the 139 SNPs associated with death and the 1311 SNPs in strong linkage disequilibrium with them, we investigated 1439 SNPs within non-coding regions to identify regulatory variants. The highest integrative weighted score (IW-score) was obtained for rs143356980, indicating that this SNP is a robust regulatory candidate. The rs143356980 region is located in a non-coding region close to the CISH gene. A CRISPR-Cas9-mediated deletion of this region and specific luciferase assays in K562 cells showed that rs143356980 modulates the enhancer activity in K562 cells. These analyses allowed us to identify several genes associated with death in patients with septic shock. They suggest that genetic variations in key genes, such as CISH, perturb relevant pathways, increasing the risk of death in sepsis patients.
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Affiliation(s)
- Florian Rosier
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
| | - Audrey Brisebarre
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
| | - Claire Dupuis
- Medical Intensive Care Unit, Clermont-Ferrand University Hospital, 58 rue Montalembert, 63003 Clermont-Ferrand, France;
| | - Sabrina Baaklini
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
| | - Denis Puthier
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
| | - Christine Brun
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
- CNRS, 13288 Marseille, France
| | - Lydie C. Pradel
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
- Correspondence: (L.C.P.); (P.R.); (D.P.); Tel.: +33-491828745 (L.C.P.); +33-491828723 (P.R.); +33-687506599 (D.P.)
| | - Pascal Rihet
- Aix Marseille Univ, INSERM, TAGC, UMR_S_1090, MarMaRa Institute, 13288 Marseille, France; (F.R.); (A.B.); (S.B.); (D.P.); (C.B.)
- Correspondence: (L.C.P.); (P.R.); (D.P.); Tel.: +33-491828745 (L.C.P.); +33-491828723 (P.R.); +33-687506599 (D.P.)
| | - Didier Payen
- UMR INSERM 1160: Alloimmunité, Autoimmunité, Transplantation, University of Paris 7 Denis Diderot, 2 rue Ambroise-Paré, CEDEX 10, 75475 Paris, France
- Correspondence: (L.C.P.); (P.R.); (D.P.); Tel.: +33-491828745 (L.C.P.); +33-491828723 (P.R.); +33-687506599 (D.P.)
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Spiegelhauer MR, García V, Guerra PR, Olsen JE, Herrero-Fresno A. Association of the prophage BTP1 and the prophage-encoded gene, bstA, with antivirulence of Salmonella Typhimurium ST313. Pathog Dis 2021; 78:5813262. [PMID: 32221584 DOI: 10.1093/femspd/ftaa019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 03/23/2020] [Indexed: 11/13/2022] Open
Abstract
The prophage BTP1 is highly conserved among strains of the pathogenic lineage Salmonella Typhimurium ST313. We aimed to analyze the role of BTP1 and the gene bstA(BTP1-encoded) in virulence of S. Typhimurium D23580, the ST313 lineage 2 reference strain. The deletion mutant D23580ΔbstA showed significantly higher replication and survival rates within human-derived THP-1 macrophages than the wild-type (WT) strain, while the mutant isolate ΔBTP1, lacking the full prophage, did not significantly differ from the WT. Interestingly, during mice infection, ΔBTP1 yielded significantly higher counts in all tested organs [spleens, livers and mesenteric lymph nodes (MLN)] than the WT, and organs were significantly enlarged compared to WT-infected animals. D23580ΔbstA significantly outcompeted the WT during competitive infection of mice, and yielded significantly enlarged spleens and MLN compared to WT-infected animals during single strain infection. Moreover, increased cellular infiltration and focal necrosis were observed in the liver samples of mice infected with D23580ΔbstA and ΔBTP1 compared to WT-infected animals. In conclusion, removal of the gene bstA and the prophage BTP1 in S. Typhimurium D23580 led to increased virulence in mice, demonstrating that bstA is an antivirulence gene.
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Affiliation(s)
- Malene R Spiegelhauer
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Vanesa García
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Priscila R Guerra
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark.,National Food Institute, Technical University of Denmark, Kgs Lyngby, Denmark
| | - John E Olsen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Ana Herrero-Fresno
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
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9
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Toyomoto M, Inoue A, Iida K, Denawa M, Kii I, Ngako Kadji FM, Kishi T, Im D, Shimamura T, Onogi H, Yoshida S, Iwata S, Aoki J, Hosoya T, Hagiwara M. S1PR3-G 12-biased agonist ALESIA targets cancer metabolism and promotes glucose starvation. Cell Chem Biol 2021; 28:1132-1144.e9. [PMID: 33561428 DOI: 10.1016/j.chembiol.2021.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 12/07/2020] [Accepted: 01/06/2021] [Indexed: 02/08/2023]
Abstract
Metabolic activities are altered in cancer cells compared with those in normal cells, and the cancer-specific pathway becomes a potential therapeutic target. Higher cellular glucose consumption, which leads to lower glucose levels, is a hallmark of cancer cells. In an objective screening for chemicals that induce cell death under low-glucose conditions, we discovered a compound, denoted as ALESIA (Anticancer Ligand Enhancing Starvation-induced Apoptosis). By our shedding assay of transforming growth factor α in HEK293A cells, ALESIA was determined to act as a sphingosine-1-phosphate receptor 3-G12-biased agonist that promotes nitric oxide production and oxidative stress. The oxidative stress triggered by ALESIA resulted in the exhaustion of glucose, cellular NADPH deficiency, and then cancer cell death. Intraperitoneal administration of ALESIA improved the survival of mice with peritoneally disseminated rhabdomyosarcoma, indicating its potential as a new type of anticancer drug for glucose starvation therapy.
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Affiliation(s)
- Masayasu Toyomoto
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan; Department of Drug Discovery for Lung Diseases, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Asuka Inoue
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Kei Iida
- Medical Research Support Center, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Masatsugu Denawa
- Medical Research Support Center, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Isao Kii
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan; Laboratory for Drug Target Research, Integrated Bioscience Division, Institute of Agriculture, Shinshu University, Nagano 399-4598, Japan
| | - Francois Marie Ngako Kadji
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Takayuki Kishi
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Dohyun Im
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Tatsuro Shimamura
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Hiroshi Onogi
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan; KinoPharma, Inc., Tokyo 103-0023, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - So Iwata
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Junken Aoki
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi 980-8578, Japan; Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Masatoshi Hagiwara
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.
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10
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van Essen MF, Schlagwein N, van Gijlswijk-Janssen DJ, Anholts JDH, Eikmans M, Ruben JM, van Kooten C. Culture medium used during small interfering RNA (siRNA) transfection determines the maturation status of dendritic cells. J Immunol Methods 2020; 479:112748. [PMID: 31958452 DOI: 10.1016/j.jim.2020.112748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/14/2019] [Accepted: 01/14/2020] [Indexed: 12/20/2022]
Abstract
Gene silencing using small interfering ribonucleic acids (siRNA) is a powerful method to interfere with gene expression, allowing for the functional exploration of specific genes. siRNA interference can be applied in both cell lines, as well as in primary, non-dividing cell types like dendritic cells. However, the efficacy in different cell types is variable and requires optimization. Here, we showed that the type of culture medium used during lipid-based siRNA-mediated transfection acts as a critical factor, affecting dendritic cell activation. Transfection of immature monocyte-derived dendritic cells in RPMI medium, but not in IMDM, showed increased transcript levels of pro-inflammatory cytokines. Moreover, the expression of co-stimulatory molecules was enhanced, thereby increasing the T cell stimulatory capacity. Our data demonstrates that the choice of medium should be critically examined as one of the variables while optimizing cell transfection.
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Affiliation(s)
- Mieke F van Essen
- Div. of Nephrology and Transplant Medicine, Dept. of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands.
| | - Nicole Schlagwein
- Div. of Nephrology and Transplant Medicine, Dept. of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Daniëlle J van Gijlswijk-Janssen
- Div. of Nephrology and Transplant Medicine, Dept. of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Jacqueline D H Anholts
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Michael Eikmans
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Jurjen M Ruben
- Div. of Nephrology and Transplant Medicine, Dept. of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Cees van Kooten
- Div. of Nephrology and Transplant Medicine, Dept. of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands.
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11
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Benz K, Schöbel A, Dietz M, Maurer P, Jackowski J. Adhesion Behaviour of Primary Human Osteoblasts and Fibroblasts on Polyether Ether Ketone Compared with Titanium under In Vitro Lipopolysaccharide Incubation. MATERIALS 2019; 12:ma12172739. [PMID: 31461861 PMCID: PMC6747843 DOI: 10.3390/ma12172739] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 12/21/2022]
Abstract
The aim of this in vitro pilot study was to analyse the adhesion behaviour of human osteoblasts and fibroblasts on polyether ether ketone (PEEK) when compared with titanium surfaces in an inflammatory environment under lipopolysaccharide (LPS) incubation. Scanning electron microscopy (SEM) images of primary human osteoblasts/fibroblasts on titanium/PEEK samples were created. The gene expression of the LPS-binding protein (LBP) and the LPS receptor (toll-like receptor 4; TLR4) was measured by real-time polymerase chain reaction (PCR). Immunocytochemistry was used to obtain evidence for the distribution of LBP/TLR4 at the protein level of the extra-cellular-matrix-binding protein vinculin and the actin cytoskeleton. SEM images revealed that the osteoblasts and fibroblasts on the PEEK surfaces had adhesion characteristics comparable to those of titanium. The osteoblasts contracted under LPS incubation and a significantly increased LBP gene expression were detected. This was discernible at the protein level on all the materials. Whereas no increase of TLR4 was detected with regard to mRNA concentrations, a considerable increase in the antibody reaction was detected on all the materials. As is the case with titanium, the colonisation of human osteoblasts and fibroblasts on PEEK samples is possible under pro-inflammatory environmental conditions and the cellular inflammation behaviour towards PEEK is lower than that of titanium.
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Affiliation(s)
- Korbinian Benz
- Department of Oral Surgery and Dental Emergency Care, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany.
| | - Andreas Schöbel
- Department of Oral Surgery and Dental Emergency Care, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
| | - Marisa Dietz
- Department of Oral and Maxillofacial Surgery, Hospital North Dortmund, 44145 Dortmund, Germany
| | - Peter Maurer
- Private Practice Clinic for Oral Surgery, 66606 St. Wendel, Germany
| | - Jochen Jackowski
- Department of Oral Surgery and Dental Emergency Care, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
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12
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Herrero-Fresno A, Espinel IC, Spiegelhauer MR, Guerra PR, Andersen KW, Olsen JE. The Homolog of the Gene bstA of the BTP1 Phage from Salmonella enterica Serovar Typhimurium ST313 Is an Antivirulence Gene in Salmonella enterica Serovar Dublin. Infect Immun 2018; 86:e00784-17. [PMID: 29109173 PMCID: PMC5736821 DOI: 10.1128/iai.00784-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 10/31/2017] [Indexed: 01/15/2023] Open
Abstract
In a previous study, a novel virulence gene, bstA, identified in a Salmonella enterica serovar Typhimurium sequence type 313 (ST313) strain was found to be conserved in all published Salmonella enterica serovar Dublin genomes. In order to analyze the role of this gene in the host-pathogen interaction in S Dublin, a mutant where this gene was deleted (S Dublin ΔbstA) and a mutant which was further genetically complemented with bstA (S Dublin 3246-C) were constructed and tested in models of in vitro and in vivo infection as well as during growth competition assays in M9 medium, Luria-Bertani broth, and cattle blood. In contrast to the results obtained for a strain of S Typhimurium ST313, the lack of bstA was found to be associated with increased virulence in S Dublin. Thus, S Dublin ΔbstA showed higher levels of uptake than the wild-type strain during infection of mouse and cattle macrophages and higher net replication within human THP-1 cells. Furthermore, during mouse infections, S Dublin ΔbstA was more virulent than the wild type following a single intraperitoneal infection and showed an increased competitive index during competitive infection assays. Deletion of bstA did not affect either the amount of cytokines released by THP-1 macrophages or the cytotoxicity toward these cells. The histology of the livers and spleens of mice infected with the wild-type strain and the S Dublin ΔbstA mutant revealed similar levels of inflammation between the two groups. The gene was not important for adherence to or invasion of human epithelial cells and did not influence bacterial growth in rich medium, minimal medium, or cattle blood. In conclusion, a lack of bstA affects the pathogenicity of S Dublin by decreasing its virulence. Therefore, it might be regarded as an antivirulence gene in this serovar.
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Affiliation(s)
- Ana Herrero-Fresno
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Irene Cartas Espinel
- Department of Pathological Anatomy, Faculty of Medicine, La Frontera University, Temuco, Chile
| | - Malene Roed Spiegelhauer
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Priscila Regina Guerra
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Karsten Wiber Andersen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - John Elmerdahl Olsen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
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13
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MEF2B mutations in non-Hodgkin lymphoma dysregulate cell migration by decreasing MEF2B target gene activation. Nat Commun 2015; 6:7953. [PMID: 26245647 PMCID: PMC4918335 DOI: 10.1038/ncomms8953] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 06/30/2015] [Indexed: 02/05/2023] Open
Abstract
Myocyte enhancer factor 2B (MEF2B) is a transcription factor with mutation hotspots at K4, Y69 and D83 in diffuse large B-cell lymphoma (DLBCL). To provide insight into the regulatory network of MEF2B, in this study, we analyse global gene expression and DNA-binding patterns. We find that candidate MEF2B direct target genes include RHOB, RHOD, CDH13, ITGA5 and CAV1, and that indirect target genes of MEF2B include MYC, TGFB1, CARD11, MEF2C, NDRG1 and FN1. MEF2B overexpression increases HEK293A cell migration and epithelial-mesenchymal transition, and decreases DLBCL cell chemotaxis. K4E, Y69H and D83V MEF2B mutations decrease the capacity of MEF2B to activate transcription and decrease its' effects on cell migration. The K4E and D83V mutations decrease MEF2B DNA binding. In conclusion, our map of the MEF2B regulome connects MEF2B to drivers of oncogenesis.
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14
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Zhang Q, Wang J, Deng F, Yan Z, Xia Y, Wang Z, Ye J, Deng Y, Zhang Z, Qiao M, Li R, Denduluri SK, Wei Q, Zhao L, Lu S, Wang X, Tang S, Liu H, Luu HH, Haydon RC, He TC, Jiang L. TqPCR: A Touchdown qPCR Assay with Significantly Improved Detection Sensitivity and Amplification Efficiency of SYBR Green qPCR. PLoS One 2015; 10:e0132666. [PMID: 26172450 PMCID: PMC4501803 DOI: 10.1371/journal.pone.0132666] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 06/17/2015] [Indexed: 02/05/2023] Open
Abstract
The advent of fluorescence-based quantitative real-time PCR (qPCR) has revolutionized the quantification of gene expression analysis in many fields, including life sciences, agriculture, forensic science, molecular diagnostics, and medicine. While SYBR Green-based qPCR is the most commonly-used platform due to its inexpensive nature and robust chemistry, quantifying the expression of genes with low abundance or RNA samples extracted from highly restricted or limited sources can be challenging because the detection sensitivity of SYBR Green-based qPCR is limited. Here, we develop a novel and effective touchdown qPCR (TqPCR) protocol by incorporating a 4-cycle touchdown stage prior to the quantification amplification stage. Using the same cDNA templates, we find that TqPCR can reduce the average Cq values for Gapdh, Rps13, and Hprt1 reference genes by 4.45, 5.47, and 4.94 cycles, respectively, when compared with conventional qPCR; the overall average Cq value reduction for the three reference genes together is 4.95. We further find that TqPCR can improve PCR amplification efficiency and thus increase detection sensitivity. When the quantification of Wnt3A-induced target gene expression in mesenchymal stem cells is analyzed, we find that, while both conventional qPCR and TqPCR can detect the up-regulation of the relatively abundant target Axin2, only TqPCR can detect the up-regulation of the lowly-expressed targets Oct4 and Gbx2. Finally, we demonstrate that the MRQ2 and MRQ3 primer pairs derived from mouse reference gene Tbp can be used to validate the RNA/cDNA integrity of qPCR samples. Taken together, our results strongly suggest that TqPCR may increase detection sensitivity and PCR amplification efficiency. Overall, TqPCR should be advantageous over conventional qPCR in expression quantification, especially when the transcripts of interest are lowly expressed, and/or the availability of total RNA is highly restricted or limited.
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Affiliation(s)
- Qian Zhang
- Department of Neurology, and the Ministry of Education Key Laboratory of Child Development and Disorders, The Children’s Hospital of Chongqing Medical University, Chongqing 400046, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
| | - Jing Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Fang Deng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Department of Cell Biology, the Third Military Medical University, Chongqing 400038, China
| | - Zhengjian Yan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Yinglin Xia
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, NY 14642, United States of America
| | - Zhongliang Wang
- Department of Neurology, and the Ministry of Education Key Laboratory of Child Development and Disorders, The Children’s Hospital of Chongqing Medical University, Chongqing 400046, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
| | - Jixing Ye
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- School of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Youlin Deng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Zhonglin Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Departments of General Surgery and Neurology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Min Qiao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Ruifang Li
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Departments of General Surgery and Neurology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Sahitya K. Denduluri
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
| | - Qiang Wei
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Lianggong Zhao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Department of Orthopaedic Surgery, the Second Affiliated Hospital of Lanzhou University, Lanzhou 730000, China
| | - Shun Lu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Department of Orthopaedic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250012, China
| | - Xin Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Department of Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Shengli Tang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Departments of General Surgery and Neurology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Hao Liu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Hue H. Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
| | - Rex C. Haydon
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
| | - Tong-Chuan He
- Department of Neurology, and the Ministry of Education Key Laboratory of Child Development and Disorders, The Children’s Hospital of Chongqing Medical University, Chongqing 400046, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, United States of America
- * E-mail: (T-CH); (LJ)
| | - Li Jiang
- Department of Neurology, and the Ministry of Education Key Laboratory of Child Development and Disorders, The Children’s Hospital of Chongqing Medical University, Chongqing 400046, China
- * E-mail: (T-CH); (LJ)
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15
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Quinnies KM, Bonthuis PJ, Harris EP, Shetty SR, Rissman EF. Neural growth hormone: regional regulation by estradiol and/or sex chromosome complement in male and female mice. Biol Sex Differ 2015; 6:8. [PMID: 25987976 PMCID: PMC4434521 DOI: 10.1186/s13293-015-0026-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 03/13/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Sex differences in pituitary growth hormone (GH) are well documented and coordinate maturation and growth. GH and its receptor are also produced in the brain where they may impact cognitive function and synaptic plasticity, and estradiol produces Gh sex differences in rat hippocampus. In mice, circulating estradiol increases Gh mRNA in female but not in male medial preoptic area (mPOA); therefore, additional factors regulate sexually dimorphic Gh expression in the brain. Thus, we hypothesized that sex chromosomes interact with estradiol to promote sex differences in GH. Here, we assessed the contributions of both estradiol and sex chromosome complement on Gh mRNA levels in three large brain regions: the hippocampus, hypothalamus, and cerebellum. METHODS We used the four core genotypes (FCG) mice, which uncouple effects of sex chromosomes and gonadal sex. The FCG model has a deletion of the sex-determining region on the Y chromosome (Sry) and transgenic insertion of Sry on an autosome. Adult FCG mice were gonadectomized and given either a blank Silastic implant or an implant containing 17β-estradiol. Significant differences in GH protein and mRNA were attributed to estradiol replacement, gonadal sex, sex chromosome complement, and their interactions, which were assessed by ANOVA and planned comparisons. RESULTS Estradiol increased Gh mRNA in the cerebellum and hippocampus, regardless of sex chromosome complement or gonadal sex. In contrast, in the hypothalamus, females had higher Gh mRNA than males, and XY females had more Gh mRNA than XY males and XX females. This same pattern was observed for GH protein. Because the differences in Gh mRNA in the hypothalamus did not replicate prior studies using other mouse models and tissue from mPOA or arcuate nucleus, we examined GH protein in the arcuate, a subdivision of the hypothalamus. Like the previous reports, and in contrast to the entire hypothalamus, a sex chromosome complement effect showed that XX mice had more GH than XY in the arcuate. CONCLUSIONS Sex chromosome complement regulates GH in some but not all brain areas, and within the hypothalamus, sex chromosomes have cell-specific actions on GH. Thus, sex chromosome complement and estradiol both contribute to GH sex differences in the brain.
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Affiliation(s)
- Kayla M Quinnies
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ; Neuroscience Graduate Program, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Paul J Bonthuis
- Department of Neurobiology and Anatomy, University of Utah, 20 North 1900 East, Salt Lake City, UT 84132-3401 USA
| | - Erin P Harris
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ; Neuroscience Graduate Program, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Savera Rj Shetty
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22908 USA ; Neuroscience Graduate Program, University of Virginia School of Medicine, Charlottesville, VA 22908 USA
| | - Emilie F Rissman
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695 USA
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16
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Pivovarova O, Hornemann S, Weimer S, Lu Y, Murahovschi V, Zhuk S, Seltmann AC, Malashicheva A, Kostareva A, Kruse M, Busjahn A, Rudovich N, Pfeiffer AFH. Regulation of nutrition-associated receptors in blood monocytes of normal weight and obese humans. Peptides 2015; 65:12-9. [PMID: 25620618 DOI: 10.1016/j.peptides.2014.11.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 11/14/2014] [Accepted: 11/19/2014] [Indexed: 12/14/2022]
Abstract
Obesity, type 2 diabetes and associated metabolic diseases are characterized by low-grade systemic inflammation which involves interplay of nutrition and monocyte/macrophage functions. We suggested that some factors such as nutrient components, neuropeptides involved in the control of gastrointestinal functions, and gastrointestinal hormones might influence immune cell functions and in this way contribute to the disease pathogenesis. The aim of this study was to investigate the mRNA expression of twelve nutrition-associated receptors in peripheral blood mononuclear cells (PBMC), isolated monocytes and monocyte-derived macrophages and their regulation under the switching from the high-carbohydrate low-fat diet to the low-carbohydrate high-fat (LC/HFD) isocaloric diet in healthy humans. The mRNA expression of receptors for short chain fatty acids (GPR41, GPR43), bile acids (TGR5), incretins (GIPR, GLP1R), cholecystokinin (CCKAR), neuropeptides VIP and PACAP (VIPR1, VIPR2), and neurotensin (NTSR1) was detected in PBMC and monocytes, while GPR41, GPR43, GIPR, TGR5, and VIPR1 were found in macrophages. Correlations of the receptor expression in monocytes with a range of metabolic and inflammatory markers were found. In non-obese subjects, the dietary switch to LC/HFD induced the increase of GPR43 and VIPR1 expression in monocytes. No significant differences of receptor expression between normal weight and moderately obese subjects were found. Our study characterized for the first time the expression pattern of nutrition-associated receptors in human blood monocytes and its dietary-induced changes linking metabolic responses to nutrition with immune functions in health and metabolic diseases.
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Affiliation(s)
- Olga Pivovarova
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany.
| | - Silke Hornemann
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Sandra Weimer
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Ye Lu
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
| | - Veronica Murahovschi
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
| | - Sergei Zhuk
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russian Federation
| | - Anne-Cathrin Seltmann
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Anna Malashicheva
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russian Federation
| | - Anna Kostareva
- Almazov Federal Medical Research Centre, Saint-Petersburg, Russian Federation
| | - Michael Kruse
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
| | | | - Natalia Rudovich
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
| | - Andreas F H Pfeiffer
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
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17
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Landin Malt A, Cesario JM, Tang Z, Brown S, Jeong J. Identification of a face enhancer reveals direct regulation of LIM homeobox 8 (Lhx8) by wingless-int (WNT)/β-catenin signaling. J Biol Chem 2014; 289:30289-30301. [PMID: 25190800 DOI: 10.1074/jbc.m114.592014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Development of the mammalian face requires a large number of genes that are expressed with spatio-temporal specificity, and transcriptional regulation mediated by enhancers plays a key role in the precise control of gene expression. Using chromatin immunoprecipitation for a histone marker of active enhancers, we generated a genome-wide map of candidate enhancers from the maxillary arch (primordium for the upper jaw) of mouse embryos. Furthermore, we confirmed multiple novel craniofacial enhancers near the genes implicated in human palate defects through functional assays. We characterized in detail one of the enhancers (Lhx8_enh1) located upstream of Lhx8, a key regulatory gene for craniofacial development. Lhx8_enh1 contained an evolutionarily conserved binding site for lymphoid enhancer factor/T-cell factor family proteins, which mediate the transcriptional regulation by the WNT/β-catenin signaling pathway. We demonstrated in vitro that WNT/β-catenin signaling was indeed essential for the expression of Lhx8 in the maxillary arch cells and that Lhx8_enh1 was a direct target of the WNT/β-catenin pathway. Together, we uncovered a molecular mechanism for the regulation of Lhx8, and we provided valuable resources for further investigation into the gene regulatory network of craniofacial development.
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Affiliation(s)
- André Landin Malt
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York 10010 and
| | - Jeffry M Cesario
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York 10010 and
| | - Zuojian Tang
- Center for Health Informatics and Bioinformatics, New York University School of Medicine, New York, New York 10016
| | - Stuart Brown
- Center for Health Informatics and Bioinformatics, New York University School of Medicine, New York, New York 10016
| | - Juhee Jeong
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York 10010 and.
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