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Kulkarni S, Alampally H, Guddattu V, Rodrigues G, Carnelio S. Expression of Fascin and SALL4 in odontogenic cysts and tumors: an immunohistochemical appraisal. F1000Res 2024; 11:1578. [PMID: 38895097 PMCID: PMC11184278 DOI: 10.12688/f1000research.126091.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/25/2024] [Indexed: 06/21/2024] Open
Abstract
Background Various stemness markers (SOX2, OCT4, and NANOG) have been studied in odontogenic cysts and tumors. However, studies on SALL4 having similar properties of stemness has not been documented. Additionally, insight into fascin as a migratory molecule is less explored. In this study, the expression of SALL4 and fascin were evaluated in ameloblastoma, adenomatoid odontogenic tumor (AOT), odontogenic keratocyst (OKC), dentigerous cyst (DC), radicular cyst (RC), and calcifying odontogenic cyst (COC). Methods Semi-quantitative analysis of fascin and SALL4 immuno-positive cells was done in a total of 40 cases of ameloblastoma (11 plexiform, 12 follicular, 12 unicystic, and 5 desmoplastic) variants, 6 cases of AOT, 15 each of OKC, DC, RC and 5 of COC. Chi-square test was applied to evaluate the association between SALL4 and fascin expression in odontogenic cysts and tumors. Results Fascin immunopositivity was observed in peripheral ameloblast-like cells, and the expression was weak or absent in stellate reticulum-like cells. A moderate to weak immune-reactivity to SALL4 was observed in the cytoplasm of ameloblastoma, epithelial cells of dentigerous and radicular cysts, having a marked inflammatory infiltrate, which was an interesting observation. COC and AOT had negative to weak expressions. No recurrence has been reported. Conclusions Expression of fascin in ameloblastomas elucidate their role in motility and localized invasion. Its expression in less aggressive lesions like DC, COC, AOT will incite to explore the other functional properties of fascin. SALL4 expression in the cytoplasm of odontogenic cysts and tumors may represent inactive or mutant forms which requires further validation.
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Affiliation(s)
- Spoorti Kulkarni
- Oral Pathology and Microbiology, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Harishanker Alampally
- Oral Pathology and Microbiology, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Vasudev Guddattu
- Department of Data Science, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Gabriel Rodrigues
- Department of General Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Sunitha Carnelio
- Oral Pathology and Microbiology, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
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2
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Wang T, Jin Y, Wang M, Chen B, Sun J, Zhang J, Yang H, Deng X, Cao X, Wang L, Tang Y. SALL4 in gastrointestinal tract cancers: upstream and downstream regulatory mechanisms. Mol Med 2024; 30:46. [PMID: 38584262 PMCID: PMC11000312 DOI: 10.1186/s10020-024-00812-z] [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: 07/18/2023] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Effective therapeutic targets and early diagnosis are major challenges in the treatment of gastrointestinal tract (GIT) cancers. SALL4 is a well-known transcription factor that is involved in organogenesis during embryonic development. Previous studies have revealed that SALL4 regulates cell proliferation, survival, and migration and maintains stem cell function in mature cells. Additionally, SALL4 overexpression is associated with tumorigenesis. Despite its characterization as a biomarker in various cancers, the role of SALL4 in GIT cancers and the underlying mechanisms are unclear. We describe the functions of SALL4 in GIT cancers and discuss its upstream/downstream genes and pathways associated with each cancer. We also consider the possibility of targeting these genes or pathways as potential therapeutic options for GIT cancers.
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Affiliation(s)
- Tairan Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yan Jin
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Mengyao Wang
- First Clinical Medical College, Xinxiang Medical University, Xinxiang, 453003, China
| | - Boya Chen
- First Clinical Medical College, Xinxiang Medical University, Xinxiang, 453003, China
| | - Jinyu Sun
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Jiaying Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Hui Yang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Xinyao Deng
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Xingyue Cao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Lidong Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key, Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, China.
| | - Yuanyuan Tang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, China.
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3
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Wang WD, Guo YY, Yang ZL, Su GL, Sun ZJ. Sniping Cancer Stem Cells with Nanomaterials. ACS NANO 2023; 17:23262-23298. [PMID: 38010076 DOI: 10.1021/acsnano.3c07828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Cancer stem cells (CSCs) drive tumor initiation, progression, and therapeutic resistance due to their self-renewal and differentiation capabilities. Despite encouraging progress in cancer treatment, conventional approaches often fail to eliminate CSCs, necessitating the development of precise targeted strategies. Recent advances in materials science and nanotechnology have enabled promising CSC-targeted approaches, harnessing the power of tailoring nanomaterials in diverse therapeutic applications. This review provides an update on the current landscape of nanobased precision targeting approaches against CSCs. We elucidate the nuanced application of organic, inorganic, and bioinspired nanomaterials across a spectrum of therapeutic paradigms, encompassing targeted therapy, immunotherapy, and multimodal synergistic therapies. By examining the accomplishments and challenges in this potential field, we aim to inform future efforts to advance nanomaterial-based therapies toward more effective "sniping" of CSCs and tumor clearance.
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Affiliation(s)
- Wen-Da Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430079, China
| | - Yan-Yu Guo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430079, China
| | - Zhong-Lu Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430079, China
| | - Guang-Liang Su
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430079, China
| | - Zhi-Jun Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430079, China
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
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4
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Hodeib H, El Amrousy D, Youssef A, Khedr R, Al-Asy H, Shabana A, Elnemr S, Abdelhai D. Acute lymphoblastic leukemia in children and SALL4 and BMI-1 gene expression. Pediatr Res 2023; 94:1510-1515. [PMID: 34782707 DOI: 10.1038/s41390-021-01854-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/21/2021] [Accepted: 11/02/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Sal-like protein 4 transcription factor (SALL4) and B cell-specific Moloney murine leukemia virus integration site 1 (BMI-1) gene were reported to cause treatment failure and relapse in several malignancies. We aimed to evaluate the prognostic value of SALL4 and BMI-1 in children with acute lymphoblastic leukemia (ALL). METHODS This prospective cohort study was carried out on 60 children with ALL as the patient group and 60 age- and sex-matched children as the control group. We evaluated the expression pattern of both SALL4 and BMI-1 genes in the peripheral blood using real-time reverse transcriptase-polymerase chain reaction in children with ALL at initial diagnosis before chemotherapy. We followed up with the patient group for 2 years for relapse or death. RESULTS Both SALL4 and BMI-1 were overexpressed in ALL children compared to the control group. Moreover, the expression of SALL4 and BMI-1 in patients with relapse was significantly higher than those with complete remission. The best cut-off of SALL4 and BMI-1 to predict relapse were >2.21 and 0.55 yielding sensitivity of 92.3% and 84.6%, respectively. Patients with overexpression of SALL4 and BMI-1 had significantly shorter overall and disease-free survival. CONCLUSIONS SALL4 and BMI-1 could be useful prognostic markers in children with ALL to predict relapse.
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Affiliation(s)
- Hossam Hodeib
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Doaa El Amrousy
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Amira Youssef
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Rasha Khedr
- Clinical Oncology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Hassan Al-Asy
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Ahmed Shabana
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Shimaa Elnemr
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Dina Abdelhai
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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5
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Kawakami H, Chen KQ, Zhang R, Pappas MP, Bailey A, Reisz JA, Corcoran D, Nishinakamura R, D'Alessandro A, Kawakami Y. Sall4 restricts glycolytic metabolism in limb buds through transcriptional regulation of glycolytic enzyme genes. Dev Biol 2023; 501:28-38. [PMID: 37301463 PMCID: PMC10330914 DOI: 10.1016/j.ydbio.2023.06.004] [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: 01/16/2023] [Revised: 04/09/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Recent studies illustrate the importance of regulation of cellular metabolism, especially glycolysis and pathways branching from glycolysis, during vertebrate embryo development. For example, glycolysis generates cellular energy ATP. Glucose carbons are also directed to the pentose phosphate pathway, which is needed to sustain anabolic processes in the rapidly growing embryos. However, our understanding of the exact status of glycolytic metabolism as well as genes that regulate glycolytic metabolism are still incomplete. Sall4 is a zinc finger transcription factor that is highly expressed in undifferentiated cells in developing mouse embryos, such as blastocysts and the post-implantation epiblast. TCre; Sall4 conditional knockout mouse embryos exhibit various defects in the posterior part of the body, including hindlimbs. Using transcriptomics approaches, we found that many genes encoding glycolytic enzymes are upregulated in the posterior trunk, including the hindlimb-forming region, of Sall4 conditional knockout mouse embryos. In situ hybridization and qRT-PCR also confirmed upregulation of expression of several glycolytic genes in hindlimb buds. A fraction of those genes are bound by SALL4 at the promoters, gene bodies or distantly-located regions, suggesting that Sall4 directly regulates expression of several glycolytic enzyme genes in hindlimb buds. To further gain insight into the metabolic status associated with the observed changes at the transcriptional level, we performed a comprehensive analysis of metabolite levels in limb buds in wild type and Sall4 conditional knockout embryos by high-resolution mass spectrometry. We found that the levels of metabolic intermediates of glycolysis are lower, but glycolytic end-products pyruvate and lactate did not exhibit differences in Sall4 conditional knockout hindlimb buds. The increased expression of glycolytic genes would have caused accelerated glycolytic flow, resulting in low levels of intermediates. This condition may have prevented intermediates from being re-directed to other pathways, such as the pentose phosphate pathway. Indeed, the change in glycolytic metabolite levels is associated with reduced levels of ATP and metabolites of the pentose phosphate pathway. To further test whether glycolysis regulates limb patterning downstream of Sall4, we conditionally inactivated Hk2, which encodes a rate-limiting enzyme gene in glycolysis and is regulated by Sall4. The TCre; Hk2 conditional knockout hindlimb exhibited a short femur, and a lack of tibia and anterior digits in hindlimbs, which are defects similarly found in the TCre; Sall4 conditional knockout. The similarity of skeletal defects in Sall4 mutants and Hk2 mutants suggests that regulation of glycolysis plays a role in hindlimb patterning. These data suggest that Sall4 restricts glycolysis in limb buds and contributes to patterning and regulation of glucose carbon flow during development of limb buds.
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Affiliation(s)
- Hiroko Kawakami
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA; Developmental Biology Center, University of Minnesota, Minneapolis, MN, USA
| | - Katherine Q Chen
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA
| | - Ruizhi Zhang
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA
| | - Matthew P Pappas
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA
| | - Abigail Bailey
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Dylan Corcoran
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA
| | - Ryuichi Nishinakamura
- Department of Kidney Development, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Yasuhiko Kawakami
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA; Developmental Biology Center, University of Minnesota, Minneapolis, MN, USA.
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6
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de Albuquerque Dias R, Balbinot KM, da Silva Kataoka MS, de Melo Alves Júnior S, de Jesus Viana Pinheiro J. Expression of stem cell markers SALL4, LIN28A, and KLF4 in ameloblastoma. Diagn Pathol 2023; 18:92. [PMID: 37559082 PMCID: PMC10413759 DOI: 10.1186/s13000-023-01379-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/02/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Ameloblastoma (AME) is a benign odontogenic tumour of epithelial origin characterised by slow but aggressive growth, infiltration, and recurrence; it is capable of reaching large dimensions and invading adjacent structures. Stem cell research has proven to be significant in the sphere of tumour biology through these cells' possible involvement in the aetiopathogenesis of this tumour. METHODS Immunohistochemistry was performed on AME, dentigerous cyst (DC), and dental follicle (DF) samples, and indirect immunofluorescence was performed on the AME-hTERT cell line to determine the expression of SALL4, LIN28A, and KLF4. RESULTS Expression of proteins related to cellular pluripotency was higher in AME cells than in DC and DF cells. The analysis revealed that the proteins in question were mainly expressed in the parenchyma of AME tissue samples and were detected in the nuclei of AME-hTERT cells. CONCLUSIONS Stem cells may be related to the origin and progression of AME.
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Affiliation(s)
- Rafaela de Albuquerque Dias
- Laboratory of Pathological Anatomy and Immunohistochemistry, Federal University of Pará, Belém, Pará, Brazil.
| | - Karolyny Martins Balbinot
- Laboratory of Pathological Anatomy and Immunohistochemistry, Federal University of Pará, Belém, Pará, Brazil
| | | | - Sérgio de Melo Alves Júnior
- Laboratory of Pathological Anatomy and Immunohistochemistry, Federal University of Pará, Belém, Pará, Brazil
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7
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Dual-Regulated Mechanism of EZH2 and KDM6A on SALL4 Modulates Tumor Progression via Wnt/β-Catenin Pathway in Gastric Cancer. Dig Dis Sci 2023; 68:1292-1305. [PMID: 36877334 DOI: 10.1007/s10620-022-07790-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 12/06/2022] [Indexed: 03/07/2023]
Abstract
BACKGROUND SALL4 has been demonstrated in many cancers and participated in tumorigenesis and tumor progression, however, its expression and function still remain ambiguous in GC, especially its upstream mechanistic modulators. PURPOSE We explored whether the dual mediation of EZH2 and KDM6A could be involved in upstream regulation of SALL4, which promotes GC cell progression via the Wnt/β-catenin pathway. METHOD Analysis of discrepant gene expression in GC and normal gastric tissues from The Cancer Genome Atlas (TCGA) dataset. GC cell lines were transfected by siEZH2 and siKDM6A, the transduction molecules of KDM6A/EZH2-SALL4-β-catenin signaling were quantified in the GC cells. RESULTS Here, we showed that only SALL4 levels of SALL family members were upregulated in nonpaired and paired GC tissues than those in corresponding normal tissues and were associated with its histological types, pathological stages, TNM stages including T stage (local invasion), N stage (lymph node metastasis), M stage (distant metastasis), and overall survival from the TCGA dataset. SALL4 level was elevated in GC cells compared to normal gastric epithelial cell line (GES-1) and was correlated to cancer cell progression and invasion through the Wnt/β-catenin pathway in GC, which levels would be separately upregulated or downregulated by KDM6A or EZH2. CONCLUSION We first proposed and demonstrated that SALL4 promoted GC cell progression via the Wnt/β-catenin pathway, which was mediated by the dual regulation of EZH2 and KDM6A on SALL4. This mechanistic pathway in gastric cancer represents a novel targetable pathway.
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8
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Vienot A, Monnien F, Truntzer C, Mougey V, Bouard A, Pallandre JR, Molimard C, Loyon R, Asgarov K, Averous G, Ghiringhelli F, Bibeau F, Peixoto P, Borg C. SALL4-related gene signature defines a specific stromal subset of pancreatic ductal adenocarcinoma with poor prognostic features. Mol Oncol 2023. [PMID: 36587397 DOI: 10.1002/1878-0261.13370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/20/2022] [Accepted: 12/30/2022] [Indexed: 01/02/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is marked by molecular heterogeneity and poor prognosis. Among the stemness-related transcription factors, Spalt-like Transcription Factor 4 (SALL4) is correlated with unfavorable outcomes; however, its roles in PDAC remain unclear. SALL4high expression defines a PDAC subpopulation characterized by a shortened patient survival. Although SALL4 expression was mostly evaluated in tumor cells, our findings identify this embryonic transcription factor as a new biomarker in PDAC-derived stroma. Gene expression analysis reveals that the SALL4high PDAC subset is enriched in cancer stem cell properties and stromal enrichment pathways; notably, an interaction with cancer-associated fibroblasts (CAF) activated by TGF-β. A particular oncogenic network was unraveled where Netrin-1 and TGF-β1 collaborate to induce SALL4 expression in CAF and drive their cancer-stemness-promoting functions. A 7-gene stromal signature related to SALL4high PDAC samples was highlighted and validated by immunochemistry for prognosis and clinical application. This SALL4-related stroma discriminated pancreatic preinvasive from invasive lesions and was enriched in short-term survivors. Our results show that SALL4 transcriptional activity controls a molecular network defined by a specific stromal signature that characterizes PDAC invasiveness and worse clinical outcomes.
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Affiliation(s)
- Angélique Vienot
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,Department of Medical Oncology, University Hospital of Besançon, France.,Clinical Investigational Center, CIC-1431, Besançon, France.,ITAC Platform, University of Bourgogne Franche-Comté, Besançon, France
| | - Franck Monnien
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,Department of Pathology, University Hospital of Besançon, France
| | - Caroline Truntzer
- Platform of Transfer in Cancer Biology, Georges François Leclerc Cancer Center, Center-Unicancer, Dijon, France.,UMR INSERM 1231, Dijon, France
| | - Virginie Mougey
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,ITAC Platform, University of Bourgogne Franche-Comté, Besançon, France
| | - Adeline Bouard
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,ITAC Platform, University of Bourgogne Franche-Comté, Besançon, France
| | - Jean-René Pallandre
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
| | - Chloé Molimard
- Department of Pathology, University Hospital of Besançon, France
| | - Romain Loyon
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
| | - Kamal Asgarov
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,ITAC Platform, University of Bourgogne Franche-Comté, Besançon, France
| | - Gerlinde Averous
- Department of Pathology, University Hospital of Strasbourg, France
| | - François Ghiringhelli
- Platform of Transfer in Cancer Biology, Georges François Leclerc Cancer Center, Center-Unicancer, Dijon, France.,UMR INSERM 1231, Dijon, France
| | - Frédéric Bibeau
- Department of Pathology, University Hospital of Besançon, France
| | - Paul Peixoto
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,EPIgenetics and GENe EXPression Technical Platform (EPIGENExp), University of Bourgogne Franche-Comté, Besançon, France
| | - Christophe Borg
- INSERM, EFS BFC, UMR1098, RIGHT, University of Bourgogne Franche-Comté, Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,Department of Medical Oncology, University Hospital of Besançon, France.,Clinical Investigational Center, CIC-1431, Besançon, France.,ITAC Platform, University of Bourgogne Franche-Comté, Besançon, France
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Lakpour N, Ghods R, Sadeghi MR, Ranjbar MM, Abolhasani M, Kiani J, Saliminejad K, Balay-Goli L, Bayat AA, Souri F, Madjd Z. Production and characterization of a new specific monoclonal antibody against A-isoform of SALL4: A novel emerging testicular cancer marker. Andrologia 2022; 54:e14608. [PMID: 36229227 DOI: 10.1111/and.14608] [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: 07/02/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
SALL4 transcription factor plays an important role to maintain the pluripotent and self-renewal of embryonic stem cells. It contributes to the growth of many cancers and embryonic development. With the exception of spermatogonia, SALL4 expression is silenced in most adult tissues after birth; nevertheless, it is re-expressed in a subset of different solid malignancies. SALL4 is a new, precise biomarker for testicular germ cell cancers that was just introduced. The whole isoform of SALL4 is called SALL4-A. Regarding the lack of antibody against human SALL4 isoforms, the pattern of expression, the role of each isoform remain unknown. Furthermore, in isoform specific evaluations, we aimed, for the first time, to produce and characterize mAb against human SALL4-A. Immunization of mice were performed with a selected 33-mer synthetic peptide of SALL4-A conjugated with KLH. Hybridoma cells were screened by ELISA for positive reactivity with SALL4-A peptide. From the ascites fluid of mice that had been injected with hybridoma cells, anti-SALL4-A mAbs were isolated using a protein G column. Reactivity of the mAbs was evaluated using the peptide and SALL4-A recombinant protein by ELISA and IHC on testicular cancer tissue as positive control, and normal kidney, stomach and prostate tissues as negative control. The produced mAb could well detect SALL4-A in testicular cancer tissues using IHC, while the reactivity was negative in normal kidney, stomach and prostate tissues. Using ELISA, the mAb affinity for the peptide and SALL4-A recombinant protein was assessed, and it was shown to be reasonably high. The mAb detected SALL4-A in nucleus and cytoplasm of several cancer cells and spermatogonia in testicular cancer tissue. In addition, it could recognize SALL4-A recombinant protein. Our produced monoclonal antibody against isoform-A of human SALL4 can specifically recognize SALL4-A using either IHC or ELISA. We hope that this mAb could help researchers in isoform-specific study of human SALL4.
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Affiliation(s)
- Niknam Lakpour
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Roya Ghods
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Sadeghi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | | | - Maryam Abolhasani
- Department of Pathology, Faculty of Medicine, Iran University of Medical Sciences, (IUMS), Tehran, Iran
| | - Jafar Kiani
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Kioomars Saliminejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Leila Balay-Goli
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Ali Ahmad Bayat
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Fahimeh Souri
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Zahra Madjd
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.,Department of Pathology, Faculty of Medicine, Iran University of Medical Sciences, (IUMS), Tehran, Iran
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10
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Matos LL, da Silva JB. Potential application of human SALL4 on oral squamous cell carcinoma. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:919. [PMID: 36172107 PMCID: PMC9511190 DOI: 10.21037/atm-22-3982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 12/02/2022]
Affiliation(s)
- Leandro Luongo Matos
- Head and Neck Surgery, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (Icesp, HCFMUSP), São Paulo, Brazil.,Surgical Clinic, Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
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11
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The Invasion and Metastasis of Colon Adenocarcinoma (COAD) Induced by SALL4. J Immunol Res 2022; 2022:9385820. [PMID: 35692499 PMCID: PMC9177309 DOI: 10.1155/2022/9385820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/03/2022] [Indexed: 12/24/2022] Open
Abstract
Objective The development and progression of many cancers may be related to SALL4, the role and molecular mechanism of which are unclear in colon adenocarcinoma (COAD). Methods The SALL4 expression in adjacent normal mucosa tissues and carcinoma tissues of patients with COAD was detected through bioinformatic analysis based on TCGA database and immunohistochemistry. Single-cell analysis showed that the expression of SALL4 in normal tissue was noticeably low. GSEA analysis suggested that the SALL4 upregulated the GO and pathway of growth and cancer development and downregulated metabolization pathway. The relationship between lymph node metastasis, histological grading, clinical staging, and the expression of SALL4 in carcinoma tissues was analyzed. The upregulated or downregulated SALL4 expression of COAD cell lines was established. The influence of SALL4 on COAD cells invasion and proliferation was detected using plate cloning assay and Transwell. The expressions of EMT-related proteins E-cadherin, N-cadherin, vimentin, and Twist were detected by Western blot. The EMT phenotype was analyzed by immunofluorescence. Results The study confirmed that the expression of SALL4 was upregulated in COAD and positively correlated with the degree of tumor differentiation, tumor staging, and metastasis. The overexpression of SALL4 was related to a poor prognosis, promoted the invasion and proliferation of colorectal cancer cells, and accelerated the occurrence of EMT, which was characterized by upregulation of Twist, vimentin, and N-cadherin expressions and downregulation of E-cadherin. The immunofluorescence staining confirmed the EMT phenotype. On the contrary, knocking out SALL4 gene reversed EMT, weakened cell proliferation and invasion, inhibited upregulation of Twist, vimentin, and N-cadherin expressions and downregulation of E-cadherin. Conclusion To sum up, TNM grading, histological grading, and lymphatic metastasis were significantly correlated with SALL4 in tumor tissues. SALL4 played a vital role in tumor proliferation, invasion, and tumor EMT and may be a novel target for COAD.
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12
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Normal embryonic development and neonatal digit regeneration in mice overexpressing a stem cell factor, Sall4. PLoS One 2022; 17:e0267273. [PMID: 35482646 PMCID: PMC9049339 DOI: 10.1371/journal.pone.0267273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/05/2022] [Indexed: 01/29/2023] Open
Abstract
Sall4 encodes a transcription factor and is known to participate in the pluripotency network of embryonic stem cells. Sall4 expression is known to be high in early stage post-implantation mouse embryos. During early post-gastrulation stages, Sall4 is highly expressed in the tail bud and distal limb buds, where progenitor cells are maintained in an undifferentiated status. The expression of Sall4 is rapidly downregulated during embryonic development. We previously demonstrated that Sall4 is required for limb and posterior axial skeleton development by conditional deletion of Sall4 in the T (Brachyury) lineage. To gain insight into Sall4 functions in embryonic development and postnatal digit regeneration, we genetically overexpressed Sall4 in the mesodermal lineage by the TCre transgene and a novel knockin allele of Rosa26-loxP-stop-loxP-Sall4. In significant contrast to severe defects by Sall4 loss of function reported in previous studies, overexpression of Sall4 resulted in normal morphology and pattern in embryos and neonates. The length of limb long bones showed subtle reduction in Sall4-overexpression mice. It is known that the digit tip of neonatal mice has level-specific regenerative ability after experimental amputation. We observed Sall4 expression in the digit tip by using a sensitive Sall4-LacZ knock-in reporter expression. Sall4 overexpression did not alter the regenerative ability of the terminal phalange that normally regenerates after amputation. Moreover, Sall4 overexpression did not confer regenerative ability to the second phalange that normally does not regenerate after amputation. These genetic experiments show that overexpression of Sall4 does not alter the development of the appendicular and axial skeleton, or neonatal digit regeneration. The results suggest that Sall4 acts as a permissive factor rather than playing an instructive role.
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13
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Sun B, Xu L, Bi W, Ou WB. SALL4 Oncogenic Function in Cancers: Mechanisms and Therapeutic Relevance. Int J Mol Sci 2022; 23:ijms23042053. [PMID: 35216168 PMCID: PMC8876671 DOI: 10.3390/ijms23042053] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023] Open
Abstract
SALL4, a member of the SALL family, is an embryonic stem cell regulator involved in self-renewal and pluripotency. Recently, SALL4 overexpression was found in malignant cancers, including lung cancer, hepatocellular carcinoma, breast cancer, gastric cancer, colorectal cancer, osteosarcoma, acute myeloid leukemia, ovarian cancer, and glioma. This review updates recent advances of our knowledge of the biology of SALL4 with a focus on its mechanisms and regulatory functions in tumors and human hematopoiesis. SALL4 overexpression promotes proliferation, development, invasion, and migration in cancers through activation of the Wnt/β-catenin, PI3K/AKT, and Notch signaling pathways; expression of mitochondrial oxidative phosphorylation genes; and inhibition of the expression of the Bcl-2 family, caspase-related proteins, and death receptors. Additionally, SALL4 regulates tumor progression correlated with the immune microenvironment involved in the TNF family and gene expression through epigenetic mechanisms, consequently affecting hematopoiesis. Therefore, SALL4 plays a critical oncogenic role in gene transcription and tumor growth. However, there are still some scientific hypotheses to be tested regarding whether SALL4 is a therapeutic target, such as different tumor microenvironments and drug resistance. Thus, an in-depth understanding and study of the functions and mechanisms of SALL4 in cancer may help develop novel strategies for cancer therapy.
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Affiliation(s)
| | | | | | - Wen-Bin Ou
- Correspondence: ; Tel./Fax: +86-571-8684-3303
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14
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Sharbatoghli M, Shamshiripour P, Fattahi F, Kalantari E, Habibi Shams Z, Panahi M, Totonchi M, Asadi-Lari Z, Madjd Z, Saeednejad Zanjani L. Co-expression of cancer stem cell markers, SALL4/ALDH1A1, is associated with tumor aggressiveness and poor survival in patients with serous ovarian carcinoma. J Ovarian Res 2022; 15:17. [PMID: 35090523 PMCID: PMC8800292 DOI: 10.1186/s13048-021-00921-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/17/2021] [Indexed: 01/16/2023] Open
Abstract
Background Spalt-like transcription factor 4 (SALL4) and aldehyde dehydrogenase1 family member A1 (ALDH1A1) expressing cells have been characterized as possessing stem cell-like properties known as cancer stem cell marker in serous ovarian carcinoma (SOC). Methods The association between SALL4 and ALDH1A1 was observed based on literature review and bioinformatics tools. Therefore, this study aimed to investigate the association between the co-expression of SALL4/ALDH1A1 proteins and clinicopathological parameters and their prognostic value in SOC patients using immunohistochemical staining on tissue microarrays (TMAs). Furthermore, benign tumors and normal tissue samples were compared with the expression of the tumor tissue samples. Results Increased co-expression of SALL4/ALDH1A1 was found to be significantly associated with the advanced FIGO stage (P = 0.047), and distant metastasis (P = 0.028). The results of Kaplan–Meier survival analysis indicated significant differences between disease- specific survival (DSS; P = 0.034) or progression-free survival (PFS; P = 0.018) and the patients with high and low co-expression of SALL4/ALDH1A1, respectively. Furthermore, high level co-expression of SALL4/ALDH1A1 was a significant predictor of worse DSS and PFS in the univariate analysis. The data also indicated that the co-expression of SALL4/ALDH1A1 was an independent prognostic factor affecting PFS. Moreover, the co-expression of SALL4/ALDH1A1 added prognostic values of DSS in patients with SOC who had grade III versus grade I in multivariate analysis. Conclusions Our data demonstrated that high co-expression of SALL4/ALDH1A1 was found to be significantly associated with tumor aggressiveness and worse DSS or PFS in SOC patients. Therefore, co-expression of SALL4/ALDH1A1 may serve as a potential prognostic biomarker of cancer progression in these cases. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-021-00921-x.
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15
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Suryatenggara J, Yong KJ, Tenen DE, Tenen DG, Bassal MA. ChIP-AP: an integrated analysis pipeline for unbiased ChIP-seq analysis. Brief Bioinform 2021; 23:6489109. [PMID: 34965583 PMCID: PMC8769893 DOI: 10.1093/bib/bbab537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/02/2021] [Accepted: 11/19/2021] [Indexed: 12/15/2022] Open
Abstract
Chromatin immunoprecipitation coupled with sequencing (ChIP-seq) is a technique used to identify protein–DNA interaction sites through antibody pull-down, sequencing and analysis; with enrichment ‘peak’ calling being the most critical analytical step. Benchmarking studies have consistently shown that peak callers have distinct selectivity and specificity characteristics that are not additive and seldom completely overlap in many scenarios, even after parameter optimization. We therefore developed ChIP-AP, an integrated ChIP-seq analysis pipeline utilizing four independent peak callers, which seamlessly processes raw sequencing files to final result. This approach enables (1) better gauging of peak confidence through detection by multiple algorithms, and (2) more thoroughly surveys the binding landscape by capturing peaks not detected by individual callers. Final analysis results are then integrated into a single output table, enabling users to explore their data by applying selectivity and sensitivity thresholds that best address their biological questions, without needing any additional reprocessing. ChIP-AP therefore presents investigators with a more comprehensive coverage of the binding landscape without requiring additional wet-lab observations.
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Affiliation(s)
- Jeremiah Suryatenggara
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Kol Jia Yong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | | | - Daniel G Tenen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Harvard Stem Cell Institute, Boston, 02138, USA
| | - Mahmoud A Bassal
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Harvard Stem Cell Institute, Boston, 02138, USA
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16
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Szymonik J, Wala K, Górnicki T, Saczko J, Pencakowski B, Kulbacka J. The Impact of Iron Chelators on the Biology of Cancer Stem Cells. Int J Mol Sci 2021; 23:ijms23010089. [PMID: 35008527 PMCID: PMC8745085 DOI: 10.3390/ijms23010089] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 02/06/2023] Open
Abstract
Neoplastic diseases are still a major medical challenge, requiring a constant search for new therapeutic options. A serious problem of many cancers is resistance to anticancer drugs and disease progression in metastases or local recurrence. These characteristics of cancer cells may be related to the specific properties of cancer stem cells (CSC). CSCs are involved in inhibiting cells’ maturation, which is essential for maintaining their self-renewal capacity and pluripotency. They show increased expression of transcription factor proteins, which were defined as stemness-related markers. This group of proteins includes OCT4, SOX2, KLF4, Nanog, and SALL4. It has been noticed that the metabolism of cancer cells is changed, and the demand for iron is significantly increased. Iron chelators have been proven to have antitumor activity and influence the expression of stemness-related markers, thus reducing chemoresistance and the risk of tumor cell progression. This prompts further investigation of these agents as promising anticancer novel drugs. The article presents the characteristics of stemness markers and their influence on the development and course of neoplastic disease. Available iron chelators were also described, and their effects on cancer cells and expression of stemness-related markers were analyzed.
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Affiliation(s)
- Julia Szymonik
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (K.W.); (T.G.)
| | - Kamila Wala
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (K.W.); (T.G.)
| | - Tomasz Górnicki
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (K.W.); (T.G.)
| | - Jolanta Saczko
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Bartosz Pencakowski
- Department of Pharmaceutical Biology and Botany, Faculty of Pharmacy, Wroclaw Medical University, 50-367 Wroclaw, Poland;
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland;
- Correspondence: ; Tel.: +48-71-784-06-88
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17
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SALL Proteins; Common and Antagonistic Roles in Cancer. Cancers (Basel) 2021; 13:cancers13246292. [PMID: 34944911 PMCID: PMC8699250 DOI: 10.3390/cancers13246292] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 01/02/2023] Open
Abstract
Simple Summary Transcription factors play essential roles in regulating gene expression, impacting the cell phenotype and function, and in the response of cells to environmental conditions. Alterations in transcription factors, including gene amplification or deletion, point mutations, and expression changes, are implicated in carcinogenesis, cancer progression, metastases, and resistance to cancer treatments. Not surprisingly, transcription factor activity is altered in numerous cancers, representing a unique class of cancer drug targets. This review updates and integrates information on the SALL family of transcription factors, highlighting the synergistic and/or antagonistic functions they perform in various cancer types. Abstract SALL proteins are a family of four conserved C2H2 zinc finger transcription factors that play critical roles in organogenesis during embryonic development. They regulate cell proliferation, survival, migration, and stemness; consequently, they are involved in various human genetic disorders and cancer. SALL4 is a well-recognized oncogene; however, SALL1–3 play dual roles depending on the cancer context and stage of the disease. Current reviews of SALLs have focused only on SALL2 or SALL4, lacking an integrated view of the SALL family members in cancer. Here, we update the recent advances of the SALL members in tumor development, cancer progression, and therapy, highlighting the synergistic and/or antagonistic functions they perform in similar cancer contexts. We identified common regulatory mechanisms, targets, and signaling pathways in breast, brain, liver, colon, blood, and HPV-related cancers. In addition, we discuss the potential of the SALL family members as cancer biomarkers and in the cancer cells’ response to therapies. Understanding SALL proteins’ function and relationship will open new cancer biology, clinical research, and therapy perspectives.
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18
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Yang J, Gao C, Liu M, Liu YC, Kwon J, Qi J, Tian X, Stein A, Liu YV, Kong NR, Wu Y, Yin S, Xi J, Chen Z, Kumari K, Wong H, Luo H, Silberstein LE, Thoms JAI, Unnikrishnan A, Pimanda JE, Tenen DG, Chai L. Targeting an Inducible SALL4-Mediated Cancer Vulnerability with Sequential Therapy. Cancer Res 2021; 81:6018-6028. [PMID: 34593523 PMCID: PMC8639708 DOI: 10.1158/0008-5472.can-21-0030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 07/28/2021] [Accepted: 09/29/2021] [Indexed: 11/16/2022]
Abstract
Oncofetal protein SALL4 is critical for cancer cell survival. Targeting SALL4, however, is only applicable in a fraction of cancer patients who are positive for this gene. To overcome this limitation, we propose to induce a cancer vulnerability by engineering a partial dependency upon SALL4. Following exogenous expression of SALL4, SALL4-negative cancer cells became partially dependent on SALL4. Treatment of SALL4-negative cells with the FDA-approved hypomethylating agent 5-aza-2'-deoxycytidine (DAC) resulted in transient upregulation of SALL4. DAC pretreatment sensitized SALL4-negative cancer cells to entinostat, which negatively affected SALL4 expression through a microRNA, miRNA-205, both in culture and in vivo. Moreover, SALL4 was essential for the efficiency of sequential treatment of DAC and entinostat. Overall, this proof-of-concept study provides a framework whereby the targeting pathways such as SALL4-centered therapy can be expanded, sensitizing cancer cells to treatment by transient target induction and engineering a dependency. SIGNIFICANCE: These findings provide a therapeutic approach for patients harboring no suitable target by induction of a SALL4-mediated vulnerability.
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Affiliation(s)
- Junyu Yang
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Chong Gao
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Miao Liu
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yao-Chung Liu
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Junsu Kwon
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jun Qi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Xi Tian
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Alicia Stein
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yanjing V Liu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Nikki R Kong
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yue Wu
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Shenyi Yin
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Molecular Medicine, Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, China
| | - Jianzhong Xi
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Molecular Medicine, Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, China
| | - Zhiyuan Chen
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Kalpana Kumari
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hannan Wong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hongbo Luo
- Joint Program in Transfusion Medicine, Department of Laboratory Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Leslie E Silberstein
- Joint Program in Transfusion Medicine, Department of Laboratory Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Julie A I Thoms
- School of Medical Sciences and Lowy Cancer Research Centre, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - Ashwin Unnikrishnan
- Prince of Wales Clinical School and Lowy Cancer Research Centre, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - John E Pimanda
- School of Medical Sciences and Lowy Cancer Research Centre, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
- Prince of Wales Clinical School and Lowy Cancer Research Centre, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
- Department of Hematology, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Daniel G Tenen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
- Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts
| | - Li Chai
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts.
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19
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Ren Z, Wang Z, Gu D, Ma H, Zhu Y, Cai M, Zhang J. Genome Instability and Long Noncoding RNA Reveal Biomarkers for Immunotherapy and Prognosis and Novel Competing Endogenous RNA Mechanism in Colon Adenocarcinoma. Front Cell Dev Biol 2021; 9:740455. [PMID: 34746134 PMCID: PMC8564000 DOI: 10.3389/fcell.2021.740455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/16/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Long noncoding RNAs (lncRNAs) crucially modulate DNA damage responses/repair in cancer cells. However, the underlying regulatory role of genome integrity and its clinical value in colon adenocarcinoma (COAD) remains unclear. This study links genome instability to lncRNA using computational biology techniques, in attempt to propose novel biomarkers of immunotherapy outcome, and investigated a potential competing endogenous RNA (ceRNA) as a molecular regulatory mechanism. Methods: TCGA-COAD patients were divided into genome unstable (GU)-like and genome stable (GS)-like clusters via hierarchical clustering to predict immunotherapy outcomes. Multivariate Cox model was established to predict the overall survival rate in COAD patients. Additionally, SVM and LASSO algorithms were applied to obtain hub lncRNAs. A novel genome instability-related ceRNA network was predicted with the Starbase 2.0 database. To better understand how these genes fundamentally interact during tumor progression and development, the mutation analysis and single-gene analysis for each gene was performed. Results: In contrast to those in the GS-like cluster, GU-like-cluster patients demonstrated a higher tumor mutational burden (TMB)/microsatellite instability (MSI), DNA polymerase epsilon (POLE) mutation rate, and immune checkpoint expression, all indicate a greater predictive power for response rate for immunotherapy. The novel prognostic signature demonstrated an outstanding predictive performance (AUC > 0.70). The genes in the genome insatiability-related ceRNA network (including four axes: AL161772.1-has-miR-671-5p (hsa-miR-181d-5p, has-miR-106a-5p)-NINL, AL161772.1-has-miR-106a-5p-TNFSF11, AC124067.4-hsa-miR-92b-3p (hsa-miR-589-5p)-PHYHIPL, and BOLA3-AS1-has-miR-130b-3p-SALL4) were identified as critical regulators of tumor microenvironment infiltration, cancer stemness, and drug resistance. qPCR was performed to validate the expression patterns of these genes. Furthermore, the MSI-high proportion was greater in patients with mutated type than in those with the wild type according to all four target genes, indicating that these four genes modulate genomic integrity and could serve as novel immunotherapy biomarkers. Conclusion: We demonstrated that genome instability-related lncRNA is a novel biomarker for immunotherapy outcomes and prognosis. A novel ceRNA network that modulates genomic integrity, including four lncRNA-miRNA-mRNA axes, was proposed.
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Affiliation(s)
- Ziyuan Ren
- Department of Immunology, CAMS Key Laboratory for T Cell and Cancer Immunotherapy, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, State Key Laboratory of Medical Molecular Biology, Beijing, China.,Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhonglin Wang
- Department of Immunology, CAMS Key Laboratory for T Cell and Cancer Immunotherapy, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, State Key Laboratory of Medical Molecular Biology, Beijing, China.,School of Physical Science, University of California, Irvine, Irvine, CA, United States
| | - Donghong Gu
- Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, China
| | - Hanchen Ma
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yan Zhu
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Menghua Cai
- Department of Immunology, CAMS Key Laboratory for T Cell and Cancer Immunotherapy, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, State Key Laboratory of Medical Molecular Biology, Beijing, China
| | - Jianmin Zhang
- Department of Immunology, CAMS Key Laboratory for T Cell and Cancer Immunotherapy, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, State Key Laboratory of Medical Molecular Biology, Beijing, China
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20
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Ma T, Shi S, Jiang H, Chen X, Xu D, Ding X, Zhang H, Xi Y. A pan-cancer study of spalt-like transcription factors 1/2/3/4 as therapeutic targets. Arch Biochem Biophys 2021; 711:109016. [PMID: 34411579 DOI: 10.1016/j.abb.2021.109016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/06/2021] [Accepted: 08/13/2021] [Indexed: 11/16/2022]
Abstract
Spalt-like transcription factors (SALLs) are evolutionarily conserved proteins that participate in embryonic development. Four members of the SALL family, SALL1, SALL2, SALL3, and SALL4, are involved in cellular apoptosis, angiogenesis, invasion, and metastasis of tumors. We used the TCGA pan-cancer data to conduct a comprehensive analysis of SALL genes. High heterogeneity in the expression of these genes was observed across various cancers, SALL1 and SALL2 were downregulated, whereas SALL4 was upregulated. Moreover, we verified that SALL4 was commonly associated with survival disadvantage, whereas others were linked to a better prognosis. In renal cancer, SALL1, SALL2, and SALL3 showed downregulation, suggesting that they acted as tumor suppressors. Furthermore, SALLs were associated with immune infiltrate subtypes, with a close association between different degrees of infiltration of stromal cells and immune cells. DNA and RNA analyses in different tumors suggested different degrees of negative or positive correlation with tumor stem cell-like features. Finally, we revealed that SALLs were related to cancer cell resistance. Our results highlight the necessity to further study each SALL gene as a separate entity in specific types of cancer. Although this article showed that SALLs could be promising targets for cancer therapy, it needs further studies to validate the findings.
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Affiliation(s)
- Ting Ma
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China; Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Shanping Shi
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Haizhong Jiang
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, China
| | - Xianwu Chen
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Dingli Xu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Xiaoyun Ding
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, China
| | - Hongyan Zhang
- College of Information and Intelligence, Hunan Agricultural University, Changsha, China
| | - Yang Xi
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China; Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China.
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21
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Boustan A, Mosaffa F, Jahangiri R, Heidarian-Miri H, Dahmardeh-Ghalehno A, Jamialahmadi K. Role of SALL4 and Nodal in the prognosis and tamoxifen resistance of estrogen receptor-positive breast cancer. MOLECULAR BIOLOGY RESEARCH COMMUNICATIONS 2021; 10:109-119. [PMID: 34476264 PMCID: PMC8340312 DOI: 10.22099/mbrc.2021.39878.1597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Despite the discovery of a number of different mechanisms underlying tamoxifen resistance, its molecular pathway is not completely clear. The upregulation of SALL4 and Nodal has been reported in breast cancer. Nevertheless, their role in tamoxifen resistance has not been investigated. In the present study, we compared Nodal and SALL4 expression in 72 tamoxifen sensitive (TAMS) and tamoxifen-resistant (TAMR) patients. Afterward, the correlation of expression data with clinicopathological features and survival of patients was studied. Results showed that both SALL4 and Nodal were significantly upregulated in TAMR compared to TAMS patients. Besides, there was a positive association between Nodal and SALL4 expression. Furthermore, we evaluated their correlation with the expression of Oct4, Nanog and Sox2 stemness markers. The results demonstrated that in most tissue samples there was a positive correlation between Nodal and SALL4 expression with these stemness markers. Besides, the overexpression of SALL4 and Nodal significantly correlated with the N stage. Moreover, the overexpression of SALL4 was associated with extracapsular invasion and lymphatic invasion. High level expressions of SALL4 and Nodal had a significant association with worse disease-free survival (DFS) rates. In addition, increased level of Nodal expression provides a superior predictor factor for DFS. The multivariate Cox regression analysis also revealed that for DFS, perineural invasion (PNI) was independently an unfavorable prognostic value. These findings suggest that the high expression of SALL4 and Nodal could contribute to tamoxifen resistance and worse survival rates in tamoxifen-treated ER+ breast cancer patients.
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Affiliation(s)
- Arad Boustan
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Mosaffa
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rosa Jahangiri
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Heidarian-Miri
- Department of Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Asefeh Dahmardeh-Ghalehno
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khadijeh Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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22
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Ouban A. Expression of SALL4 stemness marker in laryngeal squamous cell carcinomas (LSCCs) and its clinical significance. ALL LIFE 2021. [DOI: 10.1080/26895293.2021.1972349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Abderrahman Ouban
- Department of Pathology, Alfaisal University College of Medicine, Riyadh, Kingdom of Saudi Arabia
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23
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Liu J, Sauer MA, Hussein SG, Yang J, Tenen DG, Chai L. SALL4 and microRNA: The Role of Let-7. Genes (Basel) 2021; 12:1301. [PMID: 34573282 PMCID: PMC8467721 DOI: 10.3390/genes12091301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 12/11/2022] Open
Abstract
SALL4 is a zinc finger transcription factor that belongs to the spalt-like (SALL) gene family. It plays important roles in the maintenance of self-renewal and pluripotency of embryonic stem cells, and its expression is repressed in most adult organs. SALL4 re-expression has been observed in different types of human cancers, and dysregulation of SALL4 contributes to the pathogenesis, metastasis, and even drug resistance of multiple cancer types. Surprisingly, little is known regarding how SALL4 expression is controlled, but recently microRNAs (miRNAs) have emerged as important regulators of SALL4. Due to the ability of regulating targets differentially in specific tissues, and recent advances in systemic and organ specific miRNA delivery mechanisms, miRNAs have emerged as promising therapeutic targets for cancer treatment. In this review, we summarize current knowledge of the interaction between SALL4 and miRNAs in mammalian development and cancer, paying particular attention to the emerging roles of the Let-7/Lin28 axis. In addition, we discuss the therapeutic prospects of targeting SALL4 using miRNA-based strategies, with a focus on the Let-7/LIN28 axis.
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Affiliation(s)
- Jun Liu
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | - Madeline A. Sauer
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | | | - Junyu Yang
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
| | - Daniel G. Tenen
- Cancer Science Institute, National University of Singapore, Singapore 117599, Singapore
- Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Li Chai
- Department of Pathology, Brigham & Women’s Hospital, Boston, MA 02115, USA; (J.L.); (M.A.S.); (J.Y.)
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24
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Yang Y, Wang X, Liu Y, Hu Y, Li Z, Li Z, Bu Z, Wu X, Zhang L, Ji J. Up-Regulation of SALL4 Is Associated With Survival and Progression via Putative WNT Pathway in Gastric Cancer. Front Cell Dev Biol 2021; 9:600344. [PMID: 33644042 PMCID: PMC7905055 DOI: 10.3389/fcell.2021.600344] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 01/11/2021] [Indexed: 12/24/2022] Open
Abstract
SALL4, a transcriptional factor involved in embryonic stem cell self-renewal and pluripotency, is overexpressed in gastric cancer (GC). However, the association of SALL4 with the survival of GC patients is not well-understood, and the role of SALL4 in cancer progression is still unknown. In the present study, a total of 1,815 GC patients who underwent radical resection at Peking Cancer Hospital were included consecutively from 2015 to 2018, confirming the prognostic value of SALL4 and validating by data from TCGA and GEO. The protein and mRNA expression levels of SALL4 were evaluated by immunohistochemistry and qPCR, respectively. Besides, GSEA and WGCNA were applied to explore the SALL4-related cancer-promoting signaling pathways and gene modules. Our results showed that overexpression of SALL4 was observed in 16.7% of GC patients. SALL4 positivity was associated with male, older age, mixed-type histology, late stages, lymphatic metastasis, vascular invasion, non-cardia location, high AFP level, and no EBV infection background. SALL4 could be served as a marker for prognostic prediction in GC, and SALL4-positive GC was significantly associated with shortened survival. Further, the bioinformatic analysis indicated that the Wnt/β-catenin signaling pathway was activated in SALL4-high cases compared with SALL4-low cases. Expression of SALL4 was also positively correlated with the expression of multiple co-expressed genes, such as TRIB3, which plays an important role in activating the Wnt/β-catenin pathway. Our findings indicate that SALL4 is associated with clinicopathological features related to cancer progression in GC and its function in the Wnt/β-catenin pathway.
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Affiliation(s)
- Yang Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Tissue Bank, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xiaohong Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Tissue Bank, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yiqiang Liu
- Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Ying Hu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Tissue Bank, Peking University Cancer Hospital and Institute, Beijing, China
| | - Zhongwu Li
- Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Ziyu Li
- Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China
| | - Zhaode Bu
- Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xiaojiang Wu
- Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China
| | - Lianhai Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Tissue Bank, Peking University Cancer Hospital and Institute, Beijing, China.,Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China
| | - Jiafu Ji
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Tissue Bank, Peking University Cancer Hospital and Institute, Beijing, China.,Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China
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25
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Zhang Q, Han Z, Zhu Y, Chen J, Li W. The Role and Specific Mechanism of OCT4 in Cancer Stem Cells: A Review. Int J Stem Cells 2020; 13:312-325. [PMID: 32840233 PMCID: PMC7691851 DOI: 10.15283/ijsc20097] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 02/06/2023] Open
Abstract
Recently, evidences show that cancer stem cells (CSCs) are a type of cancer cell group with self-renewal and play a huge role in tumor recurrence, metastasis, and drug resistance. Finding new treatment directions and targets for cancer prognosis and reducing mortality has become a top priority. OCT4, as a transcription factor, participates in maintaining the stem characteristics of CSCs, but the mechanism of OCT4 is often overlooked. In this review, we try to illustrate the mechanism by which OCT4 plays a role in CSCs from the perspective of genetic modification of OCT4, non-coding RNA, complexes and signaling pathways associated with OCT4. Our ultimate goal is to provide new targets for cancer treatment to prolong the survival of cancer patients.
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Affiliation(s)
- Qi Zhang
- Stem Cell and Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Zhenzhen Han
- Stem Cell and Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Yanbo Zhu
- Stem Cell and Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Jingcheng Chen
- Stem Cell and Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Wei Li
- Stem Cell and Cancer Center, The First Hospital of Jilin University, Changchun, China
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26
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Kulkarni S, Solomon M, Chandrashekar C, Shetty N, Carnelio S. Spalt-like transcription factor 4 expression in oral epithelial dysplasia and oral squamous cell carcinoma: An immunohistochemical appraisal. J Carcinog 2020; 19:12. [PMID: 33679242 PMCID: PMC7921777 DOI: 10.4103/jcar.jcar_13_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/17/2020] [Accepted: 06/17/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND: Spalt-like transcription factor 4 (SALL4) is a stem cell marker that plays a critical role in maintaining the pluripotency and self-renewal of embryonic and hematopoietic stem cells. Only a few studies have been done to apprehend the expression of SALL4 in the potentially malignant oral lesion (leukoplakia with dysplasia) and oral squamous cell carcinoma (OSCC). AIM: The aim of this study is to evaluate the expression of SALL4 in leukoplakia with dysplasia and OSCC and to correlate the expression of the marker (SALL4) with the various clinicopathological parameters and patient outcome. MATERIALS AND METHODS: Immunohistochemistry for SALL4 protein was performed on 140 cases: those histopathologically confirmed cases of leukoplakia with dysplasia (n = 30) and OSCC (n = 110). Ten cases of nonepithelial neoplasm (fibroepithelial hyperplasia and excised tissue surrounding impacted third molars) were taken as control. Statistical analyses were applied to evaluate correlations between SALL4 overexpression and clinicopathological features of leukoplakia and OSCC. Survival rates were analyzed using Kaplan–Meier method. RESULTS: SALL4 positivity was observed to be higher (P = 0.001) in the tumor cells of OSCC with Immuno Reactive Score (IRS) ranging from 0 to 9. Poorly differentiated squamous cell carcinoma (SCC) had paramount higher expression with a median IRS of 6. Similar IRS and above (IRS, 6–9) was observed in Stage I (five cases), which recurred and well-differentiated cases with metastasis (four cases) while in leukoplakia with dysplasia the SALL4 expression was weak with a range of 2–4. CONCLUSIONS: SALL4 being one of the cancer stem cell molecules plays an important role in the progression of oral cancer, which was evident in this study. This could also account for aggressive clinical behavior. Follow-up of these patients would relate this molecule could be responsible for cancer relapse. Patients diagnosed to have oral epithelial dysplasia had a low expression of SALL4, are under follow-up, although seven cases did transform to SCC. Thus, we conclude, SALL4 may be of prognostic relevance, but in oral epithelial dysplasia, it requires further investigations.
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Affiliation(s)
- Spoorti Kulkarni
- Department of Oral and Maxillofacial Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Monica Solomon
- Department of Oral and Maxillofacial Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Chetana Chandrashekar
- Department of Oral and Maxillofacial Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Nisha Shetty
- Department of Oral and Maxillofacial Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sunitha Carnelio
- Department of Oral and Maxillofacial Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
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27
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Noruzi S, Vatanchian M, Azimian A, Niroomand A, Salarinia R, Oroojalian F. Silencing SALL-4 Gene by Transfecting Small Interfering RNA with Targeted Aminoglycoside-Carboxyalkyl Polyethylenimine Nano-Polyplexes Reduced Migration of MCF-7 Breast Cancer Cells. Avicenna J Med Biotechnol 2020; 13:2-8. [PMID: 33680367 PMCID: PMC7903432 DOI: 10.18502/ajmb.v13i1.4580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Background: The application of non-viral systems for delivering genes to cells is becoming a very interesting issue, especially in the treatment of neoplasms such as Breast Cancer (BC). Polymer-based non-viral systems are safe and feasible gene carriers to be used in targeted cancer therapy. SALL4 gene encodes a transcription factor and is overexpressed in some cancers. Methods: In this study, carboxyalkylated-PEI25 (25 kDa) was used to deliver plasmids expressing SALL4-siRNA into MCF-7 cells. DLS and AFM were applied to determine the size of nanoparticles. The MTT method was used to assess cytotoxicity, and the efficiency of transfection was confirmed both qualitatively and quantitatively. Finally, the effect of silencing SALL4 was investigated on the migration of MCF7 cells using the scratch test. Results: The results showed that transferring the SALL4-siRNA using PEI25G10C50 reduced the expression of the corresponding transcription factor by 14 folds which attenuated the migration of MCF-7 cells by 58%. Conclusion: In conclusion, PEI25G10C50 can serve as an effective gene delivery system for treating BC by targeting SALL-4.
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Affiliation(s)
- Somaye Noruzi
- Department of Advanced Sciences and Technologies, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Student Research Committee, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mehran Vatanchian
- Department of Anatomical Sciences, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Amir Azimian
- Department of Pathobiology and Laboratory Sciences, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Arash Niroomand
- Department of Advanced Sciences and Technologies, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Student Research Committee, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Reza Salarinia
- Department of Advanced Sciences and Technologies, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Fatemeh Oroojalian
- Department of Advanced Sciences and Technologies, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
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28
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Embryonal Rhabdomyosarcoma of the Ovary and Fallopian Tube: Rare Neoplasms Associated With Germline and Somatic DICER1 Mutations. Am J Surg Pathol 2020; 44:738-747. [PMID: 31990691 DOI: 10.1097/pas.0000000000001442] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DICER1 mutations (somatic or germline) are associated with a variety of uncommon neoplasms including cervical and genitourinary embryonal rhabdomyosarcoma (ERMS). We report a primary ovarian and 2 primary fallopian tube ERMS occurring in 60-, 13-, and 14-year-olds, respectively. The 3 neoplasms exhibited a similar morphologic appearance being polypoid and containing edematous hypocellular areas and hypercellular foci composed of small cells with scant cytoplasm exhibiting rhabdomyoblastic differentiation (desmin, myogenin, myoD1 positive). There was cellular cartilage in all cases and extensive foci of anaplasia, eosinophilic globules, and bone/osteoid in 1 case each. All 3 neoplasms exhibited DICER1 mutations; in 1 of the tubal cases, the patient had a germline mutation and in the other 2 cases, the DICER1 mutations were somatic. Accompanying DICER1 "second hits" were identified in all cases. In 2 of the neoplasms, SALL4-positive glandular structures were present which we speculate may represent an unusual primitive "metaplastic" phenomenon. Our study adds to the literature on ERMS at unusual sites associated with DICER1 mutations. ERMS arising at such sites, especially when they contain cartilage or bone/osteoid, are especially likely to be associated with DICER1 mutations. Pathologists should be aware of this as these may be the sentinel neoplasms in patients with DICER1 syndrome and confirming a germline mutation can facilitate the screening of the individual and affected family members for other neoplasms which occur in this syndrome.
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29
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Zargari S, Negahban Khameneh S, Rad A, Forghanifard MM. MEIS1 promotes expression of stem cell markers in esophageal squamous cell carcinoma. BMC Cancer 2020; 20:789. [PMID: 32819319 PMCID: PMC7441725 DOI: 10.1186/s12885-020-07307-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND MEIS1 (Myeloid ecotropic viral integration site 1) as a homeobox (HOX) transcription factor plays regulatory roles in a variety of cellular processes including development, differentiation, survival, apoptosis and hematopoiesis, as well as stem cell regulation. Few studies have established pluripotency and self-renewal regulatory roles for MEIS1 in human esophageal squamous cell carcinoma (ESCC), and our aim in this study was to evaluate the functional correlation between MEIS1 and the stemness markers in ESCC patients and cell line KYSE-30. METHODS Expression pattern of MEIS1 and SALL4 gene expression was analyzed in different pathological features of ESCC patients. shRNA in retroviral vector was used for constantly silencing of MEIS1 mRNA in ESCC line (KYSE-30). Knockdown of MEIS1 gene and the expression pattern of selected stemness markers including SALL4, OCT4, BMI-1, HIWI, NANOG, PLK1, and KLF4 were evaluated using real-time PCR. RESULTS Significant correlations were observed between MEIS1 and stemness marker SALL4 in different early pathological features of ESCC including non-invaded tumors, and the tumors with primary stages of progression. Retroviral knockdown of MEIS1 in KYSE-30 cells caused a noteworthy underexpression of both MEIS1 and major involved markers in stemness state of the cells including SALL4, OCT4, BMI-1, HIWI and KLF4. CONCLUSIONS The results highlight the important potential role of MEIS1 in modulating stemness properties of ESCCs and cells KYSE-30. These findings may confirm the linkage between MEIS1 and self-renewal capacity in ESCC and support probable oncogenic role for MEIS1 in the disease.
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Affiliation(s)
- Selma Zargari
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shabnam Negahban Khameneh
- Department of Biology, Damghan branch, Islamic Azad University, P.O.Box: 3671639998, Cheshmeh-Ali Boulevard, Sa'dei Square, Damghan, Islamic Republic of Iran
| | - Abolfazl Rad
- Cellular and Molecular Research center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mohammad Mahdi Forghanifard
- Department of Biology, Damghan branch, Islamic Azad University, P.O.Box: 3671639998, Cheshmeh-Ali Boulevard, Sa'dei Square, Damghan, Islamic Republic of Iran.
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30
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Chang S, Sun G, Zhang D, Li Q, Qian H. MiR-3622a-3p acts as a tumor suppressor in colorectal cancer by reducing stemness features and EMT through targeting spalt-like transcription factor 4. Cell Death Dis 2020; 11:592. [PMID: 32719361 PMCID: PMC7385142 DOI: 10.1038/s41419-020-02789-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
MicroRNAs are a class of small non-coding RNAs which act as oncogenes or tumor suppressors through targeting specific mRNAs. Colorectal cancer (CRC) is one of the most common malignancies worldwide. MiR-3622a-3p is found to be decreased in colorectal cancer (CRC) by analyzing data from TCGA database and there are few reports about the role of miR-3622a-3p in cancers. Our research aimed to explore the effects of miR-3622a-3p on CRC. MiR-3622a-3p was found to be down-regulated in CRC tissues and cells by qRT-PCR. The effect of miR-3622a-3p on proliferation, apoptosis, cell cycle, migration and invasion of CRC cells were investigated by a serious of biological function assays and the results revealed that miR-3622a-3p could inhibit the malignant biological properties of CRC. We performed dual luciferase assay, RNA immunoprecipitation (RIP) assay and pull-down assay to confirm the interaction between miR-3622a-3p and spalt-like transcription factor 4 (SALL4). Western blot was carried out to determine the effects of miR-3622a-3p and SALL4 on stemness features and EMT. We found that miR-3622a-3p suppressed stemness features and EMT of CRC cells by SALL4 mRNA degradation. MiR-3622a-3p could inhibit CRC cell proliferation and metastasis in vivo with tumor xenograft model and in vivo metastasis model. The CRC organoid model was constructed with fresh CRC tissues and the growth of organoids was suppressed by miR-3622a-3p. Taken together, the results of our study indicate miR-3622a-3p exerts antioncogenic role in CRC by downregulation of SALL4. The research on miR-3622a-3p might provide a new insight into treatment of CRC.
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Affiliation(s)
- Shuchen Chang
- Department of Anorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu province, China
| | - Guangli Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu province, China
| | - Dan Zhang
- Department of Anorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu province, China
| | - Qing Li
- Medical College of Southeast University, Nanjing, 210009, Jiangsu province, China
| | - Haihua Qian
- Department of Anorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu province, China.
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31
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Pádua D, Figueira P, Ribeiro I, Almeida R, Mesquita P. The Relevance of Transcription Factors in Gastric and Colorectal Cancer Stem Cells Identification and Eradication. Front Cell Dev Biol 2020; 8:442. [PMID: 32626705 PMCID: PMC7314965 DOI: 10.3389/fcell.2020.00442] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/11/2020] [Indexed: 12/12/2022] Open
Abstract
Gastric and colorectal cancers have a high incidence and mortality worldwide. The presence of cancer stem cells (CSCs) within the tumor mass has been indicated as the main reason for tumor relapse, metastasis and therapy resistance, leading to poor overall survival. Thus, the elimination of CSCs became a crucial goal for cancer treatment. The identification of these cells has been performed by using cell-surface markers, a reliable approach, however it lacks specificity and usually differs among tumor type and in some cases even within the same type. In theory, the ideal CSC markers are those that are required to maintain their stemness features. The knowledge that CSCs exhibit characteristics comparable to normal stem cells that could be associated with the expression of similar transcription factors (TFs) including SOX2, OCT4, NANOG, KLF4 and c-Myc, and signaling pathways such as the Wnt/β-catenin, Hedgehog (Hh), Notch and PI3K/AKT/mTOR directed the attention to the use of these similarities to identify and target CSCs in different tumor types. Several studies have demonstrated that the abnormal expression of some TFs and the dysregulation of signaling pathways are associated with tumorigenesis and CSC phenotype. The disclosure of common and appropriate biomarkers for CSCs will provide an incredible tool for cancer prognosis and treatment. Therefore, this review aims to gather the new insights in gastric and colorectal CSC identification specially by using TFs as biomarkers and divulge promising drugs that have been found and tested for targeting these cells.
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Affiliation(s)
- Diana Pádua
- i3S – Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
| | - Paula Figueira
- i3S – Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
| | - Inês Ribeiro
- i3S – Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
| | - Raquel Almeida
- i3S – Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Patrícia Mesquita
- i3S – Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
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32
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Che J, Wu P, Wang G, Yao X, Zheng J, Guo C. Expression and clinical value of SALL4 in renal cell carcinomas. Mol Med Rep 2020; 22:819-827. [PMID: 32468053 PMCID: PMC7339774 DOI: 10.3892/mmr.2020.11170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 03/30/2020] [Indexed: 12/17/2022] Open
Abstract
The aim of the present study was to investigate the expression of spalt like transcription factor 4 (SALL4) in the three most common types of renal cell carcinomas (RCC) [clear cell RCC (ccRCC), papillary renal cell carcinoma (pRCC) and chromophobe RCC (chRCC)], and the association with the overall survival (OS) of patients. The Cancer Genome Atlas (TCGA) database and RCC samples were used to investigate the expression levels of the SALL4 gene and its association with the OS in the three types of RCC based on the analysis of the transcriptome, copy number and survival data. It was found that SALL4 was highly expressed in ccRCC and pRCC tumor tissue, and low mRNA expression level of SALL4 indicated a prolonged survival in both ccRCC and pRCC. This mRNA expression level was associated with pathological Tumor-Node-Metastasis stage, M and T stages in both ccRCC and pRCC. The analysis of the enriched pathway results suggested that SALL4 may act via translation initiation, and that the related genes promoted the progression of RCC. Moreover, the high expression level of SALL4 was detected in RCC samples and serum from patients. It was demonstrated that SALL4 promotes increased viability in RCC cells. Therefore, the present results suggest that SALL4 may be a sensitive and specific cancer biomarker in ccRCC and pRCC. Furthermore, targeting of SALL4 may improve RCC therapy and prolong the survival of patients with ccRCC or pRCC.
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Affiliation(s)
- Jianping Che
- Department of Urology, The Affiliated Shanghai Tenth People's Hospital, Nanjing Medical University, Shanghai 200072, P.R. China
| | - Pengfei Wu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, P.R. China
| | - Guangchun Wang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, P.R. China
| | - Xudong Yao
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, P.R. China
| | - Junhua Zheng
- Department of Urology, The Affiliated Shanghai Tenth People's Hospital, Nanjing Medical University, Shanghai 200072, P.R. China
| | - Changcheng Guo
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, P.R. China
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Shao M, Zhang J, Zhang J, Shi H, Zhang Y, Ji R, Mao F, Qian H, Xu W, Zhang X. SALL4 promotes gastric cancer progression via hexokinase II mediated glycolysis. Cancer Cell Int 2020; 20:188. [PMID: 32489324 PMCID: PMC7247129 DOI: 10.1186/s12935-020-01275-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 05/16/2020] [Indexed: 02/11/2023] Open
Abstract
Background The stem cell factor SALL4 is reactivated in human cancers. SALL4 plays diverse roles in tumor growth, metastasis, and drug resistance, but its role in tumor metabolism has not been well characterized. Methods The glycolytic levels of gastric cancer cells were detected by glucose uptake, lactate production, lactate dehydrogenase activity, ATP level, and hexokinase activity. QRT-PCR and western blot were used to detect the changes in the expression of glycolytic genes and proteins. The downstream target genes of SALL4 were identified by microarray. The regulation of hexokinase II (HK-2) by SALL4 was analyzed by luciferase reporter assay and chromatin immunoprecipitation assay. Transwell migration assay, matrigel invasion assay, cell counting assay and colony formation assay were used to study the roles of HK-2 regulation by SALL4 in gastric cancer cells in vitro. The effects of SALL4 on glycolysis and gastric cancer progression in vivo were determined by subcutaneous xenograft and peritoneal metastasis tumor models in nude mice. Results SALL4 knockdown inhibited glucose uptake, lactate production, lactate dehydrogenase activity, ATP level and hexokinase activity in gastric cancer cells, and decreased the expression of glycolytic genes and proteins. Microarray analysis showed that SALL4 knockdown affected glycolysis-related pathway. The regulation of HK-2 gene expression by SALL4 was confirmed by luciferase reporter assay and chromatin immunoprecipitation assay. HK-2 knockdown abrogated the promotion of glycolysis by SALL4 in gastric cancer cells, indicating that HK-2 acts as a downstream effector of SALL4. Moreover, HK-2 knockdown reversed the promoting role of SALL4 in gastric cancer cell proliferation, migration and invasion, suggesting that SALL4 drives gastric cancer progression by upregulating HK-2. Conclusions SALL4 promotes gastric cancer progression through HK-2-mediated glycolysis, which reveals a new mechanism for the oncogenic roles of SALL4 in cancer.
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Affiliation(s)
- Meng Shao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Jiayin Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Jiahui Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Hui Shi
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Yu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Runbi Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China.,Department of Clinical Laboratory Medicine, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002 China
| | - Fei Mao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
| | - Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013 China
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Mahmoudian RA, Forghanifard MM. Crosstalk between MEIS1 and markers of different cell signaling pathways in esophageal squamous cell carcinoma. Mol Biol Rep 2020; 47:3439-3448. [PMID: 32372171 DOI: 10.1007/s11033-020-05423-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/03/2020] [Indexed: 12/31/2022]
Abstract
The homeobox transcription factor MEIS1 is involved in cell fate decision, stem cells properties, gastrointestinal (GI) tract development, and progression of several malignancies such as esophageal squamous cell carcinoma (ESCC). Increasing evidences suggest the crosstalk between MEIS1 and cell signaling pathways. Therefore, our aim in present study was to investigate the probable linkage of MEIS1 expression with key genes of different cell signaling pathways in ESCC tumorigenesis, and their correlation with clinicopathological feature of the patients. The gene expression profiling of MEIS1 and different cell signaling genes including SALL4, SIZN1, and HEY1 (stemness state, BMP, and NOTCH signaling pathways, respectively) was performed using quantitative real-time reverse transcription polymerase chain reaction (PCR) in fresh tumoral compared to margin normal tissues of 50 treatment-naive ESCC samples. The mRNA expression of MEIS1/SIZN1, SIZN1/HEY1, and SIZN1/SALL4 were significantly associated to each other (P < 0.05). There were remarkable correlations between concomitant mRNA expression of MEIS1 and SIZN1 in tumors with invasion to adventitia, early stages of tumor progression and poorly differentiated tumors. Moreover, expression of MEIS1 and HEY1 was correlated to each other in primary stages of tumor progression and non-invaded tumors. Expression of MEIS1 was significantly associated with SALL4 in poorly differentiated tumors. Our results indicated that correlation between different cell signaling pathway-related genes may lead to esophageal tumorigenesis. It is illustrated that MEIS1 as a HOX gene has a significant correlation with stemness state, BMP, and NOTCH signaling pathways via the SIZN1.
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Affiliation(s)
| | - Mohammad Mahdi Forghanifard
- Department of Biology, Damghan branch, Islamic Azad University, Cheshmeh-Ali boulevard, Sa'dei square, Damghan, Islamic Republic of Iran.
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Overexpression of Sal-like protein 4 in head and neck cancer: epigenetic effects and clinical correlations. Cell Oncol (Dordr) 2020; 43:631-641. [PMID: 32240499 DOI: 10.1007/s13402-020-00509-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Sal-like protein 4 (SALL4), an embryonic stem cell factor, has been reported to play an essential role in embryogenesis and oncogenesis. As yet, however, the expression and role of this transcription factor in head and neck squamous cell carcinoma (HNSCC) has not been established. METHODS We assessed SALL4 mRNA expression in a well-characterised dataset of 230 HNSCC samples (test cohort 110 cases and validation cohort 120 cases). We also transfected HNSCC cells (FaDu and UM-SCC-6) with SALL4 siRNA and assessed its effects on proliferation and expression of specific epigenetic factors in order to uncover the role of SALL4 in HNSCC. RESULTS Overexpression of SALL4 was detected in tumour samples of both cohorts. HNSCC cells treated with SALL4 siRNA showed a reduction in growth and a decrease in DNA methyltransferase 3 alpha (DNMT3A) expression. In the patient cohorts, SALL4 overexpression was found to significantly correlate with disease recurrence (p < 0.001) and SALL4 methylation status (p = 0.002). We also found that DNMT3A was significantly upregulated upon SALL4 upregulation (p < 0.001). High expression levels of SALL4 correlated with decreases in disease-free survival (DFS) rates (log-rank test, p < 0.001). Multivariate analysis revealed that SALL4 expression served as an independent prognostic factor for DFS (hazard ratio: 2.566, 95% confidence interval: 1.598-4.121; p < 0.001). CONCLUSIONS Our findings indicate that SALL4 upregulation correlates with HNSCC tumour aggressiveness and an adverse patient outcome. Our findings also indicate that DNMT3A may synergistically contribute to the regulatory effects of SALL4. Our findings provide insight into SALL4-mediated HNSCC development via epigenetic modulation.
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Sun J, Zhang J, Wang D, Shen J. The transcription factor Spalt and human homologue SALL4 induce cell invasion via the dMyc-JNK pathway in Drosophila. Biol Open 2020; 9:bio048850. [PMID: 32098783 PMCID: PMC7104861 DOI: 10.1242/bio.048850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/22/2020] [Indexed: 01/09/2023] Open
Abstract
Cancer cell metastasis is a leading cause of mortality in cancer patients. Therefore, revealing the molecular mechanism of cancer cell invasion is of great significance for the treatment of cancer. In human patients, the hyperactivity of transcription factor Spalt-like 4 (SALL4) is sufficient to induce malignant tumorigenesis and metastasis. Here, we found that when ectopically expressing the Drosophila homologue spalt (sal) or human SALL4 in Drosophila, epithelial cells delaminated basally with penetration of the basal lamina and degradation of the extracellular matrix, which are essential properties of cell invasion. Further assay found that sal/SALL4 promoted cell invasion via dMyc-JNK signaling. Inhibition of the c-Jun N-terminal kinase (JNK) signaling pathway through suppressing matrix metalloprotease 1, or basket can achieve suppression of cell invasion. Moreover, expression of dMyc, a suppressor of JNK signaling, dramatically blocked cell invasion induced by sal/SALL4 in the wing disc. These findings reveal a conserved role of sal/SALL4 in invasive cell movement and link the crucial mediator of tumor invasion, the JNK pathway, to SALL4-mediated cancer progression.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Jie Sun
- Department of Entomology and MOA Key Laboratory for Monitory and Green Control of Crop Pest, China Agricultural University, Beijing 100193, China
| | - Junzheng Zhang
- Department of Entomology and MOA Key Laboratory for Monitory and Green Control of Crop Pest, China Agricultural University, Beijing 100193, China
| | - Dan Wang
- Department of Entomology and MOA Key Laboratory for Monitory and Green Control of Crop Pest, China Agricultural University, Beijing 100193, China
| | - Jie Shen
- Department of Entomology and MOA Key Laboratory for Monitory and Green Control of Crop Pest, China Agricultural University, Beijing 100193, China
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Ohadi F, Rahgozar S, Ghodousi ES. Sal-Like Protein 4 Transcription Factor: A Significant Diagnostic Biomarker Involved in Childhood ALL Resistance and Relapse. Cancer Manag Res 2020; 12:1611-1619. [PMID: 32184664 PMCID: PMC7061427 DOI: 10.2147/cmar.s240469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/08/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Sal‐like protein 4 transcription factor (SALL4) is a stem cell transcription factor that plays an essential role in the maintenance and self-renewal of embryonic and hematopoietic stem cells, functioning as an oncogene in several cancers. However, the role of SALL4 in the biological behavior of childhood acute lymphoblastic leukemia and its relationship with multidrug resistance and relapse has remained largely unknown. Patients and Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was used to characterize the expression pattern of SALL4 in the bone marrow samples of 43 patients with Philadelphia negative ALL and 18 children in the non-cancer control group. The presence of minimal residual disease was measured a year after the initial therapy using SSCP (single-strand conformation polymorphism). In addition, the correlation between the expression of SALL4 and ABCA3 in relapsed patients was analyzed statistically. Results Results showed an overexpression of SALL4 in de novo patients compared with the control group (P=0.0001, AUC= 0.93), indicating the importance of this gene in the induction of leukemia. A significant increase in the ABCA3 expression levels was revealed in the relapsed patients, in comparison with the drug-sensitive group (P = 0.0005). The leukemogenetic effect of SALL4 can be related to the effect of this gene on the maintenance of pluripotency in cancer stem cells. Results also suggest that the expression of SALL4 can be considered as a diagnostic marker for pediatric ALL. Moreover, SALL4 expression levels in the minimal residual disease positive (mrd+) ALL group was significantly higher than those in the mrd− group (p=0.0001, AUC= 0.92). Conclusion These data demonstrate the prognostic impact of SALL4 in childhood ALL. Our findings also indicated a direct correlation between the mRNA expression levels of SALL4 and ABCA3 transporter in the relapsed group of ALL patients (r=0.7). These results describe a possible mechanism by which SALL4 may lead to the development of multidrug resistance.
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Affiliation(s)
- Farzaneh Ohadi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Soheila Rahgozar
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Elaheh Sadat Ghodousi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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Endometrial tumors with yolk sac tumor-like morphologic patterns or immunophenotypes: an expanded appraisal. Mod Pathol 2019; 32:1847-1860. [PMID: 31375771 DOI: 10.1038/s41379-019-0341-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 11/08/2022]
Abstract
Uterine yolk sac tumors have gained increased recognition in recent years. The current study is a multi-faceted examination of yolk sac tumor-like phenotypes in endometrial tumors, based on an analysis of 3 groups of uterine tumors: Group 1: 9 endometrial tumors that had been classified as yolk sac tumor, or as having a yolk sac tumor component, were assessed with a 35-marker immunohistochemical panel, with the goal of defining their immunophenotypic spectrum; Group 2, comprised of 70 endometrial carcinomas of various histotypes, were analyzed for their expression of SALL4, Glypican-3, and AFP, to assess the specificity of these markers for yolk sac tumors relative to endometrial carcinomas; Group 3, comprised of 626 archived cases of endometrial carcinoma/carcinosarcoma, reviewed to define the frequency of yolk sac tumor-like morphology therein. Yolk sac tumor areas in the Group 1 cases were consistently immunoreactive for SALL4 and Glypican-3; variably positive for AFP (89%), Villin (89%), PLAP (78%), 34βE12 (67%), CAM 5.2 (62.5%), EMA (56%), CD117 (50%), p16 (50%), CDX2 (44%), p53 (44% aberrant), MOC31 (37.5%), CK7 (33%), GATA3 (33%), CK5 (25%), and PAX8 (11%); and were negative for CD30, Napsin A, OCT4, estrogen, androgen, and progesterone receptors. 29 (41%) of the 70 group-2 cases expressed at least one of the 3 markers, and 96% of the positive cases was a high-grade histotype. Glypican-3, SALL4, and AFP were positive in 30, 20, and 2.8% of group-2 cases respectively; however, co-expression of any 2, or all 3 markers was uncommon (<9 and 1.4% of cases respectively). Potential yolk sac tumor-like morphology was identified in 5 (0.8%) of 626 group-3 cases, and three were ultimately deemed to be true yolk sac tumor phenotypes based on their morphologic and immunophenotypic similarity to the group 1 cases. These findings highlight the broad immunophenotypic spectrum of uterine yolk sac tumors, the potential pitfalls associated with using immunophenotypes alone to define yolk sac tumor differentiation in endometrial carcinoma, and the utility and limitations of morphologic assessment to identify yolk sac tumors at this site.
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Chen M, Li L, Zheng P. SALL4 promotes the tumorigenicity of cervical cancer cells through activation of the Wnt/β-catenin pathway via CTNNB1. Cancer Sci 2019; 110:2794-2805. [PMID: 31336010 PMCID: PMC6726833 DOI: 10.1111/cas.14140] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 12/15/2022] Open
Abstract
SALL4 is overexpressed in many cancers and is found to be involved in tumorigenesis and tumor progression. However, the function of SALL4 in cervical cancer remains unknown. Here, we showed that the expression of SALL4 was gradually increased from normal cervical tissue to high-grade squamous intraepithelial lesions and then to squamous cervical carcinoma. SALL4 was upregulated or downregulated in cervical cancer cells by stably transfecting a SALL4-expressing plasmid or a shRNA plasmid targeting SALL4, respectively. In vitro, cell growth curves and MTT (3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide) assays showed that SALL4 promoted the cell proliferation of cervical cancer cells. In vivo, xenograft experiments verified that SALL4 enhanced the tumor formation of cervical cancer cells in female BALB/c Nude mice. Cell cycle analysis by fluorescence-activated cell sorting found that SALL4 accelerates cell cycle transition from the G0 /G1 phase to the S phase. TOP/FOP-Flash reporter assay revealed that SALL4 significantly upregulates the activity of Wnt/β-catenin pathway. Western blotting showed that the expression levels of β-catenin and important downstream genes, including c-Myc and cyclin D1, were increased by SALL4 in cervical cancer cells. Furthermore, dual-luciferase reporter and chromatin immunoprecipitation assays confirmed that SALL4 transcriptionally activated CTNNB1 by physically interacting with its promoters. Taken together, The results of this study demonstrated that SALL4 may promote cell proliferation and tumor formation of cervical cancer cells by upregulating the activity of the Wnt/β-catenin signaling pathway by directly binding to the CTNNB1 promoter and trans-activating CTNNB1.
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Affiliation(s)
- Mei Chen
- The Department of Reproductive MedicineThe First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi'anChina
| | - Lu Li
- The Department of Reproductive MedicineThe First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi'anChina
| | - Peng‐Sheng Zheng
- The Department of Reproductive MedicineThe First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi'anChina
- The Section of Cancer ResearchKey Laboratory of Environment and Genes Related to DiseasesMinistry of Education of the People's Republic of ChinaXi'anChina
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Yamamoto H, Hayakawa F, Yasuda T, Odaira K, Minamikawa Y, Tange N, Hirano D, Kojima Y, Morishita T, Tsuzuki S, Naoe T, Kiyoi H. ZNF384-fusion proteins have high affinity for the transcriptional coactivator EP300 and aberrant transcriptional activities. FEBS Lett 2019; 593:2151-2161. [PMID: 31234226 DOI: 10.1002/1873-3468.13506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 11/07/2022]
Abstract
Zinc-finger protein 384 (ZNF384) fusion (Z-fusion) genes have recently been identified as recurrent fusion genes in B-cell precursor acute lymphoblastic leukaemia (BCP-ALL) and have been detected in 7-17% of Philadelphia chromosome-negative BCP-ALL cases. We selected SALL4 and ID2 as potential Z-fusion-specific transcriptional targets that might lead to the differentiation disorder of Z-fusion-positive ALL. The introduction of EP300-ZNF384 and SYNRG-ZNF384 induced the expression of these genes. Z-fusion proteins exhibited stronger transcriptional activities on the promoter or enhancer region of these genes than Wild-Z. Furthermore, GST pull-down assay revealed that Z-fusion proteins associated more strongly with EP300 than Wild-Z. Coexpression of EP300 specifically enhanced the transcriptional activities of Z-fusion proteins. We propose the increased EP300 binding of Z-fusion proteins as a mechanism for their increased transcriptional activities.
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Affiliation(s)
- Hideyuki Yamamoto
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Fumihiko Hayakawa
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan.,Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Takahiko Yasuda
- Clinical Research Center, Nagoya Medical Center, National Hospital Organization, Nagoya, Japan
| | - Koya Odaira
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Yuka Minamikawa
- Department of Analytical Neurobiology, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Naoyuki Tange
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Daiki Hirano
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Yuki Kojima
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Takanobu Morishita
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, School of Medicine, Aichi Medical University, Japan
| | - Tomoki Naoe
- Nagoya Medical Center, National Hospital Organization, Nagoya, Japan
| | - Hitoshi Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
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Wang Z, Han Y, Xing X, Jiang C, Guo H, Guan Y. MiRNA-98 inhibits ovarian carcinoma cell proliferation, migration and invasion via targeting SALL4. Minerva Med 2019; 112:154-155. [PMID: 31282134 DOI: 10.23736/s0026-4806.19.06179-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhenjie Wang
- Medical Records Room, Weifang People's Hospital, Weifang, China
| | - Yan Han
- Department of Obstetrics, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Xia Xing
- Department of Obstetrics, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Caixia Jiang
- Department of Endocrinology, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Hong Guo
- Health Management Center, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Yun Guan
- Department of Respiratory Medicine, Weifang People's Hospital, Weifang, China -
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Yin C, Han Q, Xu D, Zheng B, Zhao X, Zhang J. SALL4-mediated upregulation of exosomal miR-146a-5p drives T-cell exhaustion by M2 tumor-associated macrophages in HCC. Oncoimmunology 2019; 8:1601479. [PMID: 31143524 DOI: 10.1080/2162402x.2019.1601479] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/03/2019] [Accepted: 03/27/2019] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence indicates that cancer cell-derived exosomes contribute to cancer progression through the modulation of tumor microenvironment, but the underlying mechanisms are not fully elucidated. Here, we reported that hepatocellular carcinoma (HCC)-derived exosomes could remodel macrophages by activating NF-κB signaling and inducing pro-inflammatory factors, and resulted in M2-polarized tumor-associated macrophages. In addition, the expression of IFN-γ and TNF-α was inhibited, while the expression of inhibitory receptors such as PD-1 and CTLA-4 was upregulated in T cells by HCC-derived exosome educated macrophages. Data also revealed that HCC exosomes were enriched with miR-146a-5p and promoted M2-polarization. Further investigation demonstrated that the transcription factor Sal-like protein-4 (SALL4) was critical for regulating miR-146a-5p in HCC exosomes and M2-polarization. Mechanistically, SALL4 could bind to the promoter of miR-146a-5p, and directly controlled its expression in exosomes. Blocking the SALL4/miR-146a-5p interaction in HCC reduced the expression of inhibitory receptors on T cells, reversed T cell exhaustion, and delayed HCC progression in DEN/CCL4-induced HCC mice. In conclusion, identification of a role of the exosomal SALL4/miR-146a-5p regulatory axis in M2-polarization as well as HCC progression provides potential targets for therapeutic and diagnostic applications in liver cancer.
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Affiliation(s)
- Chunlai Yin
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Dongqing Xu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Bingqing Zheng
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Xuemei Zhao
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
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Jang HS, Shah NM, Du AY, Dailey ZZ, Pehrsson EC, Godoy PM, Zhang D, Li D, Xing X, Kim S, O'Donnell D, Gordon JI, Wang T. Transposable elements drive widespread expression of oncogenes in human cancers. Nat Genet 2019; 51:611-617. [PMID: 30926969 PMCID: PMC6443099 DOI: 10.1038/s41588-019-0373-3] [Citation(s) in RCA: 191] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 02/12/2019] [Indexed: 11/24/2022]
Abstract
Transposable elements (TEs) are an abundant and rich genetic resource of regulatory sequences1-3. Cryptic regulatory elements within TEs can be epigenetically reactivated in cancer to influence oncogenesis in a process termed onco-exaptation4. However, the prevalence and impact of TE onco-exaptation events across cancer types are poorly characterized. Here, we analyzed 7,769 tumors and 625 normal datasets from 15 cancer types, identifying 129 TE cryptic promoter-activation events involving 106 oncogenes across 3,864 tumors. Furthermore, we interrogated the AluJb-LIN28B candidate: the genetic deletion of the TE eliminated oncogene expression, while dynamic DNA methylation modulated promoter activity, illustrating the necessity and sufficiency of a TE for oncogene activation. Collectively, our results characterize the global profile of TE onco-exaptation and highlight this prevalent phenomenon as an important mechanism for promiscuous oncogene activation and ultimately tumorigenesis.
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Affiliation(s)
- Hyo Sik Jang
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Nakul M Shah
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Alan Y Du
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Zea Z Dailey
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Erica C Pehrsson
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Paula M Godoy
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - David Zhang
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Daofeng Li
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Xiaoyun Xing
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Sungsu Kim
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- Hope Center for Neurological Disease, Washington University School of Medicine, St Louis, MO, USA
| | - David O'Donnell
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
| | - Jeffrey I Gordon
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
- Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St Louis, MO, USA
| | - Ting Wang
- Department of Genetics, Washington University School of Medicine, St Louis, MO, USA.
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA.
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Nie X, Guo E, Wu C, Liu D, Sun W, Zhang L, Long G, Mei Q, Wu K, Xiong H, Hu G. SALL4 induces radioresistance in nasopharyngeal carcinoma via the ATM/Chk2/p53 pathway. Cancer Med 2019; 8:1779-1792. [PMID: 30907073 PMCID: PMC6488116 DOI: 10.1002/cam4.2056] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/09/2019] [Accepted: 02/10/2019] [Indexed: 12/11/2022] Open
Abstract
Radiotherapy is the mainstay and primary curative treatment modality in nasopharyngeal carcinoma (NPC), whose efficacy is limited by the development of intrinsic and acquired radioresistance. Thus, deciphering new molecular targets and pathways is essential for enhancing the radiosensitivity of NPC. SALL4 is a vital factor in the development and prognosis of various cancers, but its role in radioresistance remains elusive. This study aimed to explore the association of SALL4 expression with radioresistance of NPC. It was revealed that SALL4 expression was closely correlated with advanced T classification of NPC patients. Inhibition of SALL4 reduced proliferation and sensitized cells to radiation both in vitro and in vivo. Furthermore, SALL4 silencing increased radiation-induced DNA damage, apoptosis, and G2/M arrest in CNE2 and CNE2R cells. Moreover, knockdown of SALL4 impaired the expression of p-ATM, p-Chk2, p-p53, and anti-apoptosis protein Bcl-2, while pro-apoptosis protein was upregulated. These findings indicate that SALL4 could induce radioresistance via ATM/Chk2/p53 pathway and its downstream proteins related to apoptosis. Targeting SALL4 might be a promising approach for the development of novel radiosensitizing therapeutic agents for radioresistant NPC patients.
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Affiliation(s)
- Xin Nie
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Ergang Guo
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Cheng Wu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Dongbo Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Wei Sun
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Linli Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Guoxian Long
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qi Mei
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Kongming Wu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Huihua Xiong
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Guoqing Hu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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Farawela HM, Zawam HM, Al-Wakeel HA, El-Nagdy MH, El-Refaey FA, Abdel-Rahman HA. Expression pattern and prognostic implication of SALL4 gene in myeloid leukemias: a case-control study. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:65-70. [PMID: 30638095 DOI: 10.1080/00365513.2018.1555854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SALL4 is a transcription factor that retains stem cells in an undifferentiated state and promotes its self-renewal. In addition, it is implicated in leukemogenesis via its effect on leukemic stem cells. This study aimed to characterize the expression pattern of SALL4 gene in acute myeloid leukemia (AML) and chronic myeloid leukemia (CML) at different progression phases of the leukemic process and to assess its prognostic significance. Real-time PCR was used in 106 patients: 54 AML patients; 43 de novo and 11 in complete remission (CR), 52 CML patients; 31 in chronic phase (CP), 11 in deep molecular response (MR4) and 10 in accelerated/blastic phase (AP/BP); and in 21 nonmalignant bone marrow samples. SALL4 gene expression was elevated in AML, AML-CR and CML-CP (median = 5.180, 4.604 and 14.125 fold changes, respectively). Elevated SALL4 gene expression among AML de novo patient was associated with poor disease-free survival (DFS) rates (p = .022). Among CML patients, the highest percentage of patients with a high SALL4 (p = .033) was among CML-CP. SALL4 has a role in leukemogenesis; high SALL4 expression was associated with poor DFS among AML patients.
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Affiliation(s)
- Hala M Farawela
- a Department of Clinical and Chemical Pathology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Hamdy M Zawam
- b Department of Medical Oncology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Hanan A Al-Wakeel
- a Department of Clinical and Chemical Pathology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Mona H El-Nagdy
- a Department of Clinical and Chemical Pathology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Fatma A El-Refaey
- c Department of Clinical and Chemical Pathology , National Cancer Institute Cairo University , Cairo , Egypt
| | - Hala A Abdel-Rahman
- a Department of Clinical and Chemical Pathology, Faculty of Medicine , Cairo University , Cairo , Egypt
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46
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Zhang X, Zhang P, Shao M, Zang X, Zhang J, Mao F, Qian H, Xu W. SALL4 activates TGF-β/SMAD signaling pathway to induce EMT and promote gastric cancer metastasis. Cancer Manag Res 2018; 10:4459-4470. [PMID: 30349378 PMCID: PMC6188178 DOI: 10.2147/cmar.s177373] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Increasing evidence suggests that SALL4 plays oncogenic roles in cancer development and progression. We have previously shown that SALL4 is highly expressed in gastric cancer, and its upregulation is associated with lymph node metastasis and poor prognosis. The role of SALL4 in gastric cancer metastasis and the underlying mechanism remain unclear. Materials and methods The biological roles of SALL4 in gastric cancer cell mobility, migration, and invasion were investigated by wound healing, transwell migration assay, and Matrigel invasion assay. The effects of SALL4 on epithelial-mesenchymal transition (EMT) in gastric cancer cells were examined by quantitative real-time PCR and Western blot. The downstream target genes of SALL4 were identified by microarray. The regulation of TGF-β1 by SALL4 in gastric cancer cells was analyzed by luciferase reporter assay and chromatin immunoprecipitation assay. Results SALL4 knockdown inhibited, while SALL4 overexpression promoted the motility, migration, and invasion abilities of gastric cancer cells in vitro. SALL4 knockdown also suppressed the peritoneal metastasis of gastric cancer cells in nude mice. SALL4 knockdown suppressed, while SALL4 overexpression induced the activation of TGF-β/SMAD signaling pathway and triggered EMT in gastric cancer cells. TGF-β1 was identified as a direct target gene of SALL4. The results of chromatin immunoprecipitation study and luciferase reporter assay further confirmed that SALL4 bound to the promoter of TGF-b1 gene and activated its expression. TGF-β1 knockdown reversed SALL4-mediated promotion of gastric cancer cell motility, migration, and invasion, indicating that TGF-β1 acts as a downstream effector of SALL4. Furthermore, the expression of TGF-β1 was found to be closely associated with that of SALL4 in gastric cancer tissues. Conclusion SALL4 promotes the metastasis of gastric cancer, at least partly, by directly activating TGF-β1, suggesting that SALL4 may serve as a new target for gastric cancer therapy.
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Affiliation(s)
- Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China, .,Zhenjiang Key Laboratory of Gastrointestinal Cancer, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Peng Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Meng Shao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Xueyan Zang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Jiayin Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Fei Mao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China, .,Zhenjiang Key Laboratory of Gastrointestinal Cancer, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China, .,Zhenjiang Key Laboratory of Gastrointestinal Cancer, Jiangsu University, Zhenjiang, Jiangsu 212013, China,
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47
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Huynh DL, Zhang JJ, Chandimali N, Ghosh M, Gera M, Kim N, Park YH, Kwon T, Jeong DK. SALL4 suppresses reactive oxygen species in pancreatic ductal adenocarcinoma phenotype via FoxM1/Prx III axis. Biochem Biophys Res Commun 2018; 503:2248-2254. [PMID: 29958885 DOI: 10.1016/j.bbrc.2018.06.145] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 12/16/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a major malignant phenotype in pancreatic cancer, which is one of the most death causes by cancer in the world. PDAC developed from pancreatic intra-epithelial neoplasms (PanINs) and poorly diagnosed at early stages. Beside of high drug resistance, metastasis is the great concern during pancreatic cancer treatment. SALL4 expression is inherent in the upregulations of endothelial mesenchymal transition (EMT) genes and therefore promoting cancer metastasis. Furthermore, some of evidences indicated reactive oxygen species (ROS) is also influent to metastasis and self-antioxidant capacity seems a gold standard for successful metastasis rate. In this study, we have found the role Spalt like protein 4 (SALL4) to PDAC proliferation, mobility and its regulation to mitochondrial ROS via FoxM1/Prx III axis. It is possible that SALL4 mainly induces endothelial-mesenchymal transition (EMT) phenotype and favors ROS loss to facilitate metastasis efficiency in PDAC cells. Therefore, SALL4 might be a promising marker for PDAC treatment and targeting SALL4 would benefit anti-proliferative and anti-metastasis therapies.
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Affiliation(s)
- Do Luong Huynh
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | - Jiao Jiao Zhang
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | - Nisansala Chandimali
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | - Mrinmoy Ghosh
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | - Meeta Gera
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | - Nameun Kim
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea
| | | | - Taeho Kwon
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea; Laboratory of Animal Genetic Engineering and Stem Cell Biology, Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju-do 63243, Republic of Korea.
| | - Dong Kee Jeong
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju-do 63243, Republic of Korea; Laboratory of Animal Genetic Engineering and Stem Cell Biology, Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju-do 63243, Republic of Korea.
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48
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Jiang X, Wang Z. miR-16 targets SALL4 to repress the proliferation and migration of gastric cancer. Oncol Lett 2018; 16:3005-3012. [PMID: 30127890 PMCID: PMC6096186 DOI: 10.3892/ol.2018.8997] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 06/08/2018] [Indexed: 12/14/2022] Open
Abstract
There is increasing evidence that microRNAs (miRNAs) play important roles in tumor progression and development by targeting different genes, including gastric cancer (GC). However, the role of miR-16 in GC is so far unclear. Herein, we examined the function and potential mechanism of miR-16 in GC. Reverse transcription-quantitative PCR found that miR-16 expression was prominently lower in GC tissues while SALL4 expression was frequently higher than normal tissues. Re-expression of miR-16 could suppress GC cell proliferation and migration by MTT and Transwell assay. We confirmed that miR-16 directly targeted SALL4 in regulating GC by luciferase assay. Knockdown of SALL4 inhibited cell proliferation and migration. Furthermore, SALL4 could counteract the inhibition-effect of miR-16 in GC. In conclusion, for the the first time we demonstrated that miR-16 played inhibitory effect through targeting SALL4 in GC cell proliferation and migration. Our study revealed that miR-16/SALL4 axis was critical in regulating the GC development, indicating a new prospect to regulate GC cell progression and development.
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Affiliation(s)
- Xuefeng Jiang
- Department of Gastroenterology, China-Japan Union Hospital, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Zhe Wang
- Department of Gastroenterology, China-Japan Union Hospital, Jilin University, Changchun, Jilin 130000, P.R. China
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49
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Spletter ML, Barz C, Yeroslaviz A, Zhang X, Lemke SB, Bonnard A, Brunner E, Cardone G, Basler K, Habermann BH, Schnorrer F. A transcriptomics resource reveals a transcriptional transition during ordered sarcomere morphogenesis in flight muscle. eLife 2018; 7:34058. [PMID: 29846170 PMCID: PMC6005683 DOI: 10.7554/elife.34058] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/26/2018] [Indexed: 01/07/2023] Open
Abstract
Muscles organise pseudo-crystalline arrays of actin, myosin and titin filaments to build force-producing sarcomeres. To study sarcomerogenesis, we have generated a transcriptomics resource of developing Drosophila flight muscles and identified 40 distinct expression profile clusters. Strikingly, most sarcomeric components group in two clusters, which are strongly induced after all myofibrils have been assembled, indicating a transcriptional transition during myofibrillogenesis. Following myofibril assembly, many short sarcomeres are added to each myofibril. Subsequently, all sarcomeres mature, reaching 1.5 µm diameter and 3.2 µm length and acquiring stretch-sensitivity. The efficient induction of the transcriptional transition during myofibrillogenesis, including the transcriptional boost of sarcomeric components, requires in part the transcriptional regulator Spalt major. As a consequence of Spalt knock-down, sarcomere maturation is defective and fibers fail to gain stretch-sensitivity. Together, this defines an ordered sarcomere morphogenesis process under precise transcriptional control - a concept that may also apply to vertebrate muscle or heart development.
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Affiliation(s)
- Maria L Spletter
- Muscle Dynamics GroupMax Planck Institute of BiochemistryMartinsriedGermany
- Biomedical Center, Physiological ChemistryLudwig-Maximilians-Universität MünchenMartinsriedGermany
| | - Christiane Barz
- Muscle Dynamics GroupMax Planck Institute of BiochemistryMartinsriedGermany
| | - Assa Yeroslaviz
- Computational Biology GroupMax Planck Institute of BiochemistryMartinsriedGermany
| | - Xu Zhang
- Muscle Dynamics GroupMax Planck Institute of BiochemistryMartinsriedGermany
- Aix Marseille Univ, CNRS, IBDMMarseilleFrance
- School of Life Science and EngineeringFoshan UniversityGuangdongChina
| | - Sandra B Lemke
- Muscle Dynamics GroupMax Planck Institute of BiochemistryMartinsriedGermany
| | - Adrien Bonnard
- Aix Marseille Univ, CNRS, IBDMMarseilleFrance
- Aix Marseille Univ, INSERM, TAGCMarseilleFrance
| | - Erich Brunner
- Institute of Molecular Life SciencesUniversity of ZurichZurichSwitzerland
| | - Giovanni Cardone
- Imaging FacilityMax Planck Institute of BiochemistryMartinsriedGermany
| | - Konrad Basler
- Institute of Molecular Life SciencesUniversity of ZurichZurichSwitzerland
| | - Bianca H Habermann
- Computational Biology GroupMax Planck Institute of BiochemistryMartinsriedGermany
- Aix Marseille Univ, CNRS, IBDMMarseilleFrance
- Aix Marseille Univ, INSERM, TAGCMarseilleFrance
| | - Frank Schnorrer
- Muscle Dynamics GroupMax Planck Institute of BiochemistryMartinsriedGermany
- Aix Marseille Univ, CNRS, IBDMMarseilleFrance
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50
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Su S, Wang Y, Wang H, Huang W, Chen J, Xing J, Xu P, Yuan X, Huang C, Zhou Y. Comparative expression analysis identifies the respiratory transition-related miRNAs and their target genes in tissues of metamorphosing Chinese giant salamander (Andrias davidianus). BMC Genomics 2018; 19:406. [PMID: 29843595 PMCID: PMC5975713 DOI: 10.1186/s12864-018-4662-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/12/2018] [Indexed: 01/23/2023] Open
Abstract
Background Chinese giant salamander (Andrias davidianus) undergoes a metamorphosis from aquatic larvae to terrestrial adults, with concomitant transfer of respiration from gills to lungs prior to metamorphosis. These two tissues, as well as skin, were sampled to identify the differentially expressed miRNAs. Results High-coverage reference transcriptome was generated from combined gill, lung and skin tissues of metamorphosing juveniles, and lung tissue of adults: 86,282 unigenes with total length of approximately 77,275,634 bp and N50 of 1732 bp were obtained. Among these, 13,246 unigenes were assigned to 288 pathways. To determine the possible involvement of miRNAs in the respiratory transition, small RNA libraries were sequenced; 282 miRNAs were identified, 65 among which were known and 217 novel. Based on the hierarchical clustering analysis, the twelve studied samples were classified into three major clusters using differentially expressed miRNAs. We have validated ten differentially expressed miRNAs and some of their related target genes using qPCR. These results largely corroborated the results of transcriptomic and miRNA analyses. Finally, an miRNA-gene-network was constructed. Among them, two miRNAs with target genes related to oxygen sensing were differentially expressed between gill and lung tissues. Three miRNAs were differentially expressed between the lungs of larvae and lungs of adults. Conclusions This study provides the first large-scale miRNA expression profile overview during the respiration transition from gills to lungs in Chinese giant salamander. Five differentially expressed miRNAs and their target genes were identified among skin, gill and lung tissues. These results suggest that miRNA profiles in respiratory tissues play an important role in the regulation of respiratory transition. Electronic supplementary material The online version of this article (10.1186/s12864-018-4662-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shengyan Su
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture; Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, People's Republic of China.,Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, People's Republic of China
| | - Yuheng Wang
- Department of Animal Husbandry & Veterinary Medicine, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, 212400, People's Republic of China
| | - Huiwei Wang
- Department of Animal Husbandry & Veterinary Medicine, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, 212400, People's Republic of China
| | - Wei Huang
- Department of Animal Husbandry & Veterinary Medicine, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, 212400, People's Republic of China
| | - Jun Chen
- Department of Animal Husbandry & Veterinary Medicine, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, 212400, People's Republic of China.
| | - Jun Xing
- Department of Animal Husbandry & Veterinary Medicine, Jiangsu Polytechnic College of Agriculture and Forestry, Zhenjiang, 212400, People's Republic of China
| | - Pao Xu
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture; Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, People's Republic of China.,Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, People's Republic of China
| | - Xinhua Yuan
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture; Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, People's Republic of China. .,Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, People's Republic of China.
| | - Caiji Huang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, People's Republic of China
| | - Yulin Zhou
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, People's Republic of China
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