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Wiggins DA, Maxwell JN, Nelson DE. Exploring the role of CITED transcriptional regulators in the control of macrophage polarization. Front Immunol 2024; 15:1365718. [PMID: 38646545 PMCID: PMC11032013 DOI: 10.3389/fimmu.2024.1365718] [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: 01/04/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Macrophages are tissue resident innate phagocytic cells that take on contrasting phenotypes, or polarization states, in response to the changing combination of microbial and cytokine signals at sites of infection. During the opening stages of an infection, macrophages adopt the proinflammatory, highly antimicrobial M1 state, later shifting to an anti-inflammatory, pro-tissue repair M2 state as the infection resolves. The changes in gene expression underlying these transitions are primarily governed by nuclear factor kappaB (NF-κB), Janus kinase (JAK)/signal transducer and activation of transcription (STAT), and hypoxia-inducible factor 1 (HIF1) transcription factors, the activity of which must be carefully controlled to ensure an effective yet spatially and temporally restricted inflammatory response. While much of this control is provided by pathway-specific feedback loops, recent work has shown that the transcriptional co-regulators of the CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxy-terminal domain (CITED) family serve as common controllers for these pathways. In this review, we describe how CITED proteins regulate polarization-associated gene expression changes by controlling the ability of transcription factors to form chromatin complexes with the histone acetyltransferase, CBP/p300. We will also cover how differences in the interactions between CITED1 and 2 with CBP/p300 drive their contrasting effects on pro-inflammatory gene expression.
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Affiliation(s)
| | | | - David E. Nelson
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN, United States
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2
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Dahlgren M, Lettiero B, Dalal H, Mårtensson K, Gaber A, Nodin B, Gruvberger-Saal SK, Saal LH, Howlin J. CITED1 as a marker of favourable outcome in anti-endocrine treated, estrogen-receptor positive, lymph-node negative breast cancer. BMC Res Notes 2023; 16:105. [PMID: 37322548 DOI: 10.1186/s13104-023-06376-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 06/02/2023] [Indexed: 06/17/2023] Open
Abstract
OBJECTIVE To investigate CITED1 as a potential biomarker of anti-endocrine response and breast cancer recurrence, given its previously determined role in mediating estrogen-dependant transcription. The study is a continuation of earlier work establishing the role of CITED1 in mammary gland development. RESULTS CITED1 mRNA is associated with estrogen-receptor positivity and selectively expressed in the GOBO dataset of cell lines and tumours representing the luminal-molecular subtype. In patients treated with tamoxifen, higher CITED1 correlated with better outcome, suggesting a role in anti-estrogen response. The effect was particularly evident in the subset of estrogen-receptor positive, lymph-node negative (ER+/LN-) patients although noticeable divergence of the groups was apparent only after five years. Tissue microarray (TMA) analysis further validated the association of CITED1 protein, by immunohistochemistry, with favourable outcome in ER+, tamoxifen-treated patients. Although we also found a favourable response to anti-endocrine treatment in a larger TCGA dataset, the tamoxifen-specific effect was not replicated. Finally, MCF7 cells overexpressing CITED1 showed selective amplification of AREG but not TGFα suggesting that maintenance of specific ERα-CITED1 mediated transcription is important for the long-term response to anti-endocrine therapy. These findings together confirm the proposed mechanism of action of CITED1 and support its potential use as a prognostic biomarker.
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Affiliation(s)
- Malin Dahlgren
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Barbara Lettiero
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Hina Dalal
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Kira Mårtensson
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Alexander Gaber
- Therapeutic Pathology, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Björn Nodin
- Therapeutic Pathology, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Sofia K Gruvberger-Saal
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Lao H Saal
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden
| | - Jillian Howlin
- Translational Oncogenomics, Faculty of Medicine, Department of Clinical Sciences Lund and Lund University Cancer Center, Lund University, Lund, Sweden.
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Barca-Mayo O, López M. Estradiol and leptin: no engagement without CITED1. Trends Endocrinol Metab 2023:S1043-2760(23)00088-7. [PMID: 37156656 DOI: 10.1016/j.tem.2023.04.002] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/10/2023]
Abstract
Ovarian estradiol and leptin are important modulators of whole-body energy homeostasis that act in the hypothalamus. In a recent paper in Cell Metabolism, González-García et al. demonstrate that CITED1 acts as a key hypothalamic cofactor that mediates the antiobesity effects of estradiol through potentiation of the anorectic actions of leptin.
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Affiliation(s)
- Olga Barca-Mayo
- Circadian and Glial Biology Group, Department of Physiology, Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Miguel López
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706 Santiago de Compostela, Spain.
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Linos K, Dermawan JK, Bale T, Rosenblum MK, Singer S, Tap W, Dickson MA, Hornick JL, Antonescu CR. Expanding the Molecular Diversity of CIC-Rearranged Sarcomas With Novel and Very Rare Partners. Mod Pathol 2023; 36:100103. [PMID: 36788092 PMCID: PMC10324473 DOI: 10.1016/j.modpat.2023.100103] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/06/2023] [Accepted: 01/12/2023] [Indexed: 01/22/2023]
Abstract
Capicua transcriptional repressor (CIC)-rearranged sarcoma represents a distinct pathologic entity and constitutes the second most prevalent category of undifferentiated round cell sarcomas (URCSs) after Ewing sarcoma. The 2 most common translocations are t(4;19) and t(10;19), resulting in CIC fusions with either DUX4 and DUX4L paralog, respectively; however, other rare variant fusions have also been reported. In this study, we expand the molecular spectrum of CIC-gene partners, reporting on 5 cases of URCSs showing CIC fusions with AXL, CITED1, SYK, and LEUTX by targeted RNA or DNA sequencing. There were 4 female patients and 1 male patient with a wide age range (12-70 years; median, 36 years). Four cases occurred in the deep soft tissues (lower extremity, 3; neck, 1) and 1 case in the central nervous system (midbrain/thalamus). All cases showed similar histologic findings within the spectrum of URCSs. Immunohistochemistry, showed variable positivity for ETV4 in 4 of the 4 cases and positive results for ERG in 3 of the 4 cases and for WT1 in 1 of the 4 cases. CD31 showed positivity in 2 of the 3 cases, including one coexpressing ERG. Unsupervised clustering of methylation profiles by T-distributed stochastic neighborhood embedding performed in 4 cases showed that all clustered tightly together and along the CIC sarcoma methylation class. RNA-sequencing data showed consistent upregulation of ETV1 and ETV4 mRNA in all cases examined, at similar levels to CIC::DUX4 URCSs. Our study expands the molecular diversity of CIC-rearranged URCSs to include novel and rare partners, providing morphologic, immunohistochemical, gene expression, and methylation evidence supporting their classification within the family of tumors harboring the more common DUX4/DUX4L partner genes.
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Affiliation(s)
- Konstantinos Linos
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Josephine K Dermawan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Tejus Bale
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc K Rosenblum
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Samuel Singer
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - William Tap
- Department of Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mark A Dickson
- Department of Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jason L Hornick
- Department of Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Cristina R Antonescu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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Subramani A, Hite MEL, Garcia S, Maxwell J, Kondee H, Millican GE, McClelland EE, Seipelt-Thiemann RL, Nelson DE. Regulation of macrophage IFNγ-stimulated gene expression by the transcriptional coregulator CITED1. J Cell Sci 2023; 136:jcs260529. [PMID: 36594555 PMCID: PMC10112972 DOI: 10.1242/jcs.260529] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/21/2022] [Indexed: 01/04/2023] Open
Abstract
Macrophages serve as a first line of defense against microbial pathogens. Exposure to interferon-γ (IFNγ) increases interferon-stimulated gene (ISG) expression in these cells, resulting in enhanced antimicrobial and proinflammatory activity. Although this response must be sufficiently vigorous to ensure the successful clearance of pathogens, it must also be carefully regulated to prevent tissue damage. This is controlled in part by CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxyl-terminal domain 2 (CITED2), a transcriptional coregulator that limits ISG expression by inhibiting STAT1 and IRF1. Here, we show that the closely related Cited1 is an ISG, which is expressed in a STAT1-dependent manner, and that IFNγ stimulates the nuclear accumulation of CITED1 protein. In contrast to CITED2, ectopic CITED1 enhanced the expression of a subset of ISGs, including Ccl2, Ifit3b, Isg15 and Oas2. This effect was reversed in a Cited1-null cell line produced by CRISPR-based genomic editing. Collectively, these data show that CITED1 maintains proinflammatory gene expression during periods of prolonged IFNγ exposure and suggest that there is an antagonistic relationship between CITED proteins in the regulation of macrophage inflammatory function. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Aarthi Subramani
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Maria E. L. Hite
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Sarah Garcia
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Jack Maxwell
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Hursha Kondee
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Grace E. Millican
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
| | - Erin E. McClelland
- College of Osteopathic Medicine, Marian University, Indianapolis, IN 46222, USA
| | | | - David E. Nelson
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
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Martín-Sánchez M, Bravo-Gil N, González-del Pozo M, Méndez-Vidal C, Fernández-Suárez E, Rodríguez-de la Rúa E, Borrego S, Antiñolo G. A Multi-Strategy Sequencing Workflow in Inherited Retinal Dystrophies: Routine Diagnosis, Addressing Unsolved Cases and Candidate Genes Identification. Int J Mol Sci 2020; 21:E9355. [PMID: 33302505 PMCID: PMC7763277 DOI: 10.3390/ijms21249355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 01/17/2023] Open
Abstract
The management of unsolved inherited retinal dystrophies (IRD) cases is challenging since no standard pipelines have been established. This study aimed to define a diagnostic algorithm useful for the diagnostic routine and to address unsolved cases. Here, we applied a Next-Generation Sequencing-based workflow, including a first step of panel sequencing (PS) followed by clinical-exome sequencing (CES) and whole-exome sequencing (WES), in 46 IRD patients belonging to 42 families. Twenty-six likely causal variants in retinal genes were found by PS and CES. CES and WES allowed proposing two novel candidate loci (WDFY3 and a X-linked region including CITED1), both abundantly expressed in human retina according to RT-PCR and immunohistochemistry. After comparison studies, PS showed the best quality and cost values, CES and WES involved similar analytical efforts and WES presented the highest diagnostic yield. These results reinforce the relevance of panels as a first step in the diagnostic routine and suggest WES as the next strategy for unsolved cases, reserving CES for the simultaneous study of multiple conditions. Standardizing this algorithm would enhance the efficiency and equity of clinical genetics practice. Furthermore, the identified candidate genes could contribute to increase the diagnostic yield and expand the mutational spectrum in these disorders.
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Affiliation(s)
- Marta Martín-Sánchez
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
| | - Nereida Bravo-Gil
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Seville, Spain
| | - María González-del Pozo
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Seville, Spain
| | - Cristina Méndez-Vidal
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Seville, Spain
| | - Elena Fernández-Suárez
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
| | - Enrique Rodríguez-de la Rúa
- Department of Ophthalmology, University Hospital Virgen Macarena, 41013 Seville, Spain;
- Retics Patologia Ocular, OFTARED, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Salud Borrego
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Seville, Spain
| | - Guillermo Antiñolo
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain; (M.M.-S.); (N.B.-G.); (M.G.-d.P.); (C.M.-V.); (E.F.-S.); (S.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Seville, Spain
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Al-Amrani A, AbdelKarim M, AlZabin M, Alzoghaibi M. Low expression of brown and beige fat genes in subcutaneous tissues in obese patients. Arch Med Sci 2019; 15:1113-1122. [PMID: 31572455 PMCID: PMC6764296 DOI: 10.5114/aoms.2018.76684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/20/2018] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION The molecular mechanisms behind obesity pathogenesis remain largely undefined. Impairment in the browning process of subcutaneous tissues proposed to contribute to obesity pathogenesis. In the current study, we aimed to assess whether the expression of brown fat genes in subcutaneous tissues in obese patients is altered as compared to non-obese patients. MATERIAL AND METHODS Participants were recruited from patients undergoing general surgeries. At the same site of surgery, biopsies were taken from the abdominal subcutaneous tissues from each participant, along with a venous blood sample. The expression of BAT genes was measured using a real-time PCR method. Serum FGF21 was measured using an ELISA kit, and the serum blood lipid profile was measured using the Dimension VistaTM 1500 System. RESULTS A total of 58 surgical patients was involved. A low expression of BAT genes was observed in the groups with higher body mass index (BMI) (< 30 kg/m2) as compared to the groups with lower BMI (> 30 kg/m2). The expression of CIDEA and CITED1 was significantly higher in the patients with normal weight as compared to obese (p = 0.01 and p = 0.02, respectively). A significant negative correlation was found between the expression of BAT genes and BMI in patients with BMI < 35 kg/m2. However, the strongest negative correlation was observed in the expression of CIDEA (r = -0.5, p = 0.004), followed by TBX1 (r = -0.4, p = 0.01), CITED1, and ZIC1 (r = -0.4, p = 0.03). Whereas the correlation of UCP1 with BMI remained insignificant (r = -0.29, p = 0.08). When including patients with BMI > 35 kg/m2, the correlation decreased and became insignificant (p = 0.08). No significant correlation was found between the expression of BAT genes and blood lipid profiles (p > 0.05). Serum FGF21 was positively and significantly correlated to the expression of UCP1 (r = 0.56, p = 0.02) and TBX1 (r = 0.62, p = 0.01), however, this correlation was missing in patients with severe obesity. CONCLUSIONS Our data suggested that brown and beige genes expression in abdominal subcutaneous tissues is dysregulated in patients with obesity. Further studies are needed to investigate the role of browning of subcutaneous tissues in regulating body weight and metabolism in human.
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Affiliation(s)
- Aishah Al-Amrani
- PhD student, Department of Physiology, Faculty of Medicine King Saud University, Riyadh, Saudi Arabia
- Faculty of Applied Medical Sciences, Tabuk University, Tabuk, Saudi Arabia
| | - Mouaadh AbdelKarim
- Department of Physiopathology of Inflammatory Bone Diseases, University of the Littoral, Boulogne sur Mer, France
| | | | - Mohammad Alzoghaibi
- Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
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Wang Y, Huang H, Hu F, Li J, Zhang L, Pang H. CITED1 contributes to the progression of papillary thyroid carcinoma via the Wnt/β-catenin signaling pathway. Onco Targets Ther 2019; 12:6769-6777. [PMID: 31686836 PMCID: PMC6709827 DOI: 10.2147/ott.s215025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/26/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose The incidence rate of thyroid cancer, the most common endocrine malignancy, has increased rapidly over the past 10 years. However, the fundamental molecular mechanisms underlying the malignant progression of thyroid cancer are unclear. Materials and methods Firstly, quantitative real-time PCR analysis and Western blot analysis were used to investigate the expression of Cbp/p300 interacting transactivator with Glu/Asp rich carboxy-terminal domain 1 (CITED1) in papillary thyroid carcinoma (PTC) cell lines. Then, we investigated the effects of CITED1 knockdown on cell proliferation, apoptosis, and invasion in in vitro and in vivo models of PTC. Results CITED1 was upregulated in PTC cell lines, and CITED1 knockdown significantly suppressed the proliferation, migration, and invasion of K1 cells resulting in a G0/G1 phase block. Furthermore, the silencing of CITED1 significantly promoted cell apoptosis. In the in vivo study, the growth speed and weight of the transplanted tumor were significantly suppressed in nude mice infected with short hairpin RNA targeting CITED1 (CITE1-shRNA) cells. Furthermore, we found that CITED1-shRNA activated Wnt/β-catenin signaling in PTC. Conclusion Taken together, our findings suggest that CITED1 knockdown facilitates apoptosis and inhibits proliferation and invasion in K1 cells via the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Ying Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Huan Huang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Fengqiong Hu
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jia Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Lie Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hua Pang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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Li H, Guan H, Guo Y, Liang W, Liu L, He X, Ke W, Cao X, Xiao H, Li Y. CITED1 promotes proliferation of papillary thyroid cancer cells via the regulation of p21 and p27. Cell Biosci 2018; 8:57. [PMID: 30450190 PMCID: PMC6219258 DOI: 10.1186/s13578-018-0256-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 10/26/2018] [Indexed: 12/17/2022] Open
Abstract
Background It has been reported that CBP/p300-Interacting Transactivator with glutamic acid [E]/aspartic acid [D]-rich C-terminal domain 1 (CITED1) is overexpressed in papillary thyroid cancer (PTC). However, the functional significance and underlying mechanisms of CITED1 in PTC are largely unknown. Methods The Cancer Genome Atlas dataset and real-time PCR were used to determine the expression of CITED1 in PTC. The role of CITED1 in PTC cell proliferation was determined conducted using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), colony formation, 5-ethynyl-2'-deoxyuridine (EdU) incorporation, and flow cytometry assays in vitro, and a subcutaneous xenotransplantation tumor model in nude mice was established to analyze tumor growth in vivo. We studied the potential mechanisms underlying the contribution of CITED1 to PTC proliferation using western blotting and luciferase assays. Results We found that CITED1 was highly expressed in PTC. In vitro and in vivo experiments demonstrated that CITED1 was involved in PTC cell proliferation and tumorigenesis. Then, gain- and loss-of-function experiments revealed that CITED1 decreased the expression of p21 and p27, and thereby increased the phosphorylation of pRb as well as E2F1 transcriptional activity. Conclusions Our results suggest that CITED1 is overexpressed in PTC and that CITED1 promotes the proliferation of PTC cells via the regulation of p21 and p27, which indicates that CITED1 might be a potential therapeutic target in the treatment of PTC.
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Affiliation(s)
- Hai Li
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Hongyu Guan
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Yan Guo
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Weiwei Liang
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Liehua Liu
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Xiaoying He
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Weijian Ke
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Xiaopei Cao
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Haipeng Xiao
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
| | - Yanbing Li
- Department of Endocrinology and Diabetes Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, 510080 Guangdong China
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Sun Y, Guo HH, Guo DD, Jiang XY, Zou SM. Divergence of Genes Encoding CITED1 and CITED2 in Blunt Snout Bream ( Megalobrama amblycephala) and Their Transcriptional Responses to Hypoxia. Front Physiol 2018; 9:186. [PMID: 29559927 PMCID: PMC5845555 DOI: 10.3389/fphys.2018.00186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/21/2018] [Indexed: 11/13/2022] Open
Abstract
The proteins CITED belong to a family of non-DNA-binding transcriptional co-regulators involved in the regulation of various transcriptional responses. Previous studies suggest that members of CITED family may function in response to hypoxia in mammals. however, the molecular and functional information on CITED genes in aquaculture fish is unclear. Here, we characterized and examined the transcriptional patterns of CITED1 and CITED2 genes in the hypoxia-sensitive blunt snout bream (Megalobrama amblycephala). Blunt snout bream CITED1 and CITED2 genes shared a relatively low sequence identity of 45%. CITED1 and CITED2 mRNAs were widely transcribed in adult tissues. During embryogenesis, CITED1 mRNA was significantly transcribed at 4, 24, 28, 40, and 44 hpf, whereas CITED2 mRNA levels fluctuated from the zygote to 44 hpf larval stage. Whole-mount in situ hybridization demonstrated that CITED1 and CITED2 mRNAs were detected in the brain at 12 hpf, brain and gut at 24 hpf, and brain at 36 hpf. In addition, low expression of CITED1 mRNA was detected in the tailbud at 24 hpf. The results of acute hypoxia experiment showed that CITED1 and CITED2 mRNAs were markedly upregulated in the kidney and downregulated in the liver, brain, gill, and heart under hypoxia. Embryos in hypoxic conditions at different developmental stages showed a significant increase in mRNA levels of CITED1 and CITED2. These results provide a new insight into the divergence of CITED1 and CITED2 genes and their transcriptional responses to hypoxia.
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Affiliation(s)
- Yuan Sun
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Genetics and Breeding Center for Blunt Snout Bream, Shanghai Ocean University, Shanghai, China
| | - Hong-Hong Guo
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Genetics and Breeding Center for Blunt Snout Bream, Shanghai Ocean University, Shanghai, China
| | - Dan-Dan Guo
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Genetics and Breeding Center for Blunt Snout Bream, Shanghai Ocean University, Shanghai, China
| | - Xia-Yun Jiang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Genetics and Breeding Center for Blunt Snout Bream, Shanghai Ocean University, Shanghai, China
| | - Shu-Ming Zou
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Genetics and Breeding Center for Blunt Snout Bream, Shanghai Ocean University, Shanghai, China
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Howlin J, Cirenajwis H, Lettiero B, Staaf J, Lauss M, Saal L, Borg Å, Gruvberger-Saal S, Jönsson G. Loss of CITED1, an MITF regulator, drives a phenotype switch in vitro and can predict clinical outcome in primary melanoma tumours. PeerJ 2015; 3:e788. [PMID: 25755924 PMCID: PMC4349148 DOI: 10.7717/peerj.788] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 02/04/2015] [Indexed: 12/15/2022] Open
Abstract
CITED1 is a non-DNA binding transcriptional co-regulator whose expression can distinguish the ‘proliferative’ from ‘invasive’ signature in the phenotype-switching model of melanoma. We have found that, in addition to other ‘proliferative’ signature genes, CITED1 expression is repressed by TGFβ while the ‘invasive’ signature genes are upregulated. In agreement, CITED1 positively correlates with MITF expression and can discriminate the MITF-high/pigmentation tumour molecular subtype in a large cohort (120) of melanoma cell lines. Interestingly, CITED1 overexpression significantly suppressed MITF promoter activation, mRNA and protein expression levels while MITF was transiently upregulated following siRNA mediated CITED1 silencing. Conversely, MITF siRNA silencing resulted in CITED1 downregulation indicating a reciprocal relationship. Whole genome expression analysis identified a phenotype shift induced by CITED1 silencing and driven mainly by expression of MITF and a cohort of MITF target genes that were significantly altered. Concomitantly, we found changes in the cell-cycle profile that manifest as transient G1 accumulation, increased expression of CDKN1A and a reduction in cell viability. Additionally, we could predict survival outcome by classifying primary melanoma tumours using our in vitro derived ‘CITED1-silenced’ gene expression signature. We hypothesize that CITED1 acts a regulator of MITF, functioning to maintain MITF levels in a range compatible with tumourigenesis.
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Affiliation(s)
- Jillian Howlin
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden.,Cell and Experimental Pathology, Department of Laboratory Medicine Malmö, Lund University, Sweden
| | - Helena Cirenajwis
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Barbara Lettiero
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Johan Staaf
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Martin Lauss
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Lao Saal
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Åke Borg
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Sofia Gruvberger-Saal
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
| | - Göran Jönsson
- Division of Oncology-Pathology, Lund University Cancer Center/Medicon Village, Scheelevägen, Lund, Sweden
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Lin Z, Feng R, Li J, Meng Y, Yuan L, Fu Z, Guo J, Bringhurst FR, Yang D. Nuclear translocation of CBP/p300-interacting protein CITED1 induced by parathyroid hormone requires serine phosphorylation at position 79 in its 63-84 domain. Cell Signal 2014; 26:2436-45. [PMID: 25049079 DOI: 10.1016/j.cellsig.2014.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 06/25/2014] [Accepted: 06/27/2014] [Indexed: 01/01/2023]
Abstract
The transcriptional cofactor CITED1 inhibits osteoblastic differentiation and blunts the stimulation of osteoblastic differentiation by parathyroid hormone (PTH). In the MC3T3-E1 osteoblastic cell line, we found that CITED1 was located predominantly in the cytoplasm and that hPTH(1-34) increased translocation of CITED1 from the cytoplasm to the nucleus. This response to hPTH(1-34) was not observed when all 9 serine residues within the 63-84 domain of CITED1 were mutated to alanines (CITED1 9S>A) or when a single serine to alanine mutation was made at position 79 (CITED1 S(79)>A). CITED1 containing mutations of these 9 serines to glutamic acid (9S>E) retained the same nuclear translocation response to hPTH(1-34) as the wild type CITED1. ALP activity and formation of mineralized nodules were inhibited in cells transfected with pcDNA3-CFP-CITED1 or with pcDNA3-CFP-CITED1 9S>E with or without hPTH(1-34) treatment (all P<0.05); these changes were not observed using CITED1 9S>A. Cells exposed to intermittent treatment with hPTH(1-34) expressed more ALP2, Runx2 and osteocalcin than vehicle-treated cells. These effects of hPTH(1-34) were inhibited in cells transfected with pcDNA3-CFP-CITED1 or pcDNA3-CFP-CITED1 9S>E, but were slightly enhanced by the alanine mutants. PKC activator (TPA) increased nuclear translocation of CITED1, whereas a PKC inhibitor (Go6983) blunted the effect of hPTH(1-34) on the nuclear translocation of wildtype CITED1 but not of CITED1 S(79)>E. The data indicated that serine phosphorylation at position 79 in the 63-84 domain is associated with PKC activation, and is required for both CITED1 nuclear translocation induced by PTH and the negative effects of CITED1 on osteoblastic differentiation and mineralization.
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Sehic D, Ciornei CD, Gisselsson D. Evaluation of CITED1, SIX1, and CD56 protein expression for identification of blastemal elements in Wilms tumor. Am J Clin Pathol 2014; 141:828-33. [PMID: 24838327 DOI: 10.1309/ajcpq8q0ythsyztx] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES Successful further treatment of Wilms tumors (WTs) after preoperative chemotherapy and surgery depends on correct histopathologic risk stratification, including quantification of remaining blastemal elements. In the present study, we assessed the usefulness of protein markers for the detection of WT blastema. METHODS Expression of the candidate blastemal protein markers CITED1, SIX1, and CD56 was evaluated by immunofluorescence regarding sensitivity and specificity for staining blastema in a tissue microarray containing cores from 30 WTs, a small number of rarer pediatric renal neoplasms, and normal postnatal kidney. RESULTS CITED1, SIX1, and CD56 were expressed in blastema in 100%, 89%, and 74%, respectively, of the WTs with this component present. However, they were also expressed in 64%, 25%, and 79%, respectively, of epithelial WT elements and 48%, 52%, and 62%, respectively, of stromal WT elements. CONCLUSIONS SIX1 showed the highest specificity, CITED1 the highest sensitivity, and CD56 low specificity and sensitivity for detection of postchemotherapy WT blastema. Cytokeratin staining proved to be a useful way to determine rudimentary tubular elements not readily recognized by routine staining.
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Affiliation(s)
- Daniel Sehic
- Department of Clinical Genetics, Lund University, Lund, Sweden
| | - Cristina D. Ciornei
- Department of Pathology, Skåne University, and Regional Laboratories, Lund, Sweden
| | - David Gisselsson
- Department of Clinical Genetics, Lund University, Lund, Sweden
- Department of Pathology, Skåne University, and Regional Laboratories, Lund, Sweden
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