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Wang Y, Zou H, Ji W, Huang M, You B, Sun N, Qiao Y, Liu P, Xu L, Zhang X, Cai M, Kuang Y, Fu S, Sun W, Jia X, Wu J. Repression of the SUMO-conjugating enzyme UBC9 is associated with lowered double minutes and reduced tumor progression. Cancer Biol Ther 2024; 25:2323768. [PMID: 38465861 PMCID: PMC10936631 DOI: 10.1080/15384047.2024.2323768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
Double minutes (DMs), extrachromosomal gene fragments found within certain tumors, have been noted to carry onco- and drug resistance genes contributing to tumor pathogenesis and progression. After screening for SUMO-related molecule expression within various tumor sample and cell line databases, we found that SUMO-conjugating enzyme UBC9 has been associated with genome instability and tumor cell DM counts, which was confirmed both in vitro and in vivo. Karyotyping determined DM counts post-UBC9 knockdown or SUMOylation inhibitor 2-D08, while RT-qPCR and Western blot were used to measure DM-carried gene expression in vitro. In vivo, fluorescence in situ hybridization (FISH) identified micronucleus (MN) expulsion. Western blot and immunofluorescence staining were then used to determine DNA damage extent, and a reporter plasmid system was constructed to detect changes in homologous recombination (HR) and non-homologous end joining (NHEJ) pathways. Our research has shown that UBC9 inhibition is able to attenuate DM formation and lower DM-carried gene expression, in turn reducing tumor growth and malignant phenotype, via MN efflux of DMs and lowering NHEJ activity to increase DNA damage. These findings thus reveal a relationship between heightened UBC9 activity, increased DM counts, and tumor progression, providing a potential approach for targeted therapies, via UBC9 inhibition.
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Affiliation(s)
- Yusi Wang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Hongyan Zou
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Wei Ji
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Min Huang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Benhui You
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Nan Sun
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Yuandong Qiao
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Peng Liu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Lidan Xu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Xuelong Zhang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Mengdi Cai
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Ye Kuang
- Department of Gynecology and Obstetrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Songbin Fu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Wenjing Sun
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Xueyuan Jia
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
| | - Jie Wu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Harbin, China
- Future Medical Laboratory, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
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Li J, Li Y, Zhou L, Li H, Wan T, Tang J, Zhou L, Xie H, Wang L. Microbiome analysis reveals the inducing effect of Pseudomonas on prostatic hyperplasia via activating NF-κB signalling. Virulence 2024; 15:2313410. [PMID: 38378443 PMCID: PMC10880505 DOI: 10.1080/21505594.2024.2313410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/25/2024] [Indexed: 02/22/2024] Open
Abstract
Benign prostatic hyperplasia (BPH) is a prevalent disease among middle-aged and elderly males, but its pathogenesis remains unclear. Dysbiosis of the microbiome is increasingly recognized as a significant factor in various human diseases. Prostate tissue also contains a unique microbiome, and its dysbiosis has been proposed to contribute to prostate diseases. Here, we obtained prostate tissues and preoperative catheterized urine from 24 BPH individuals, and 8 normal prostate samples as controls, which followed strict aseptic measures. Using metagenomic next-generation sequencing (mNGS), we found the disparities in the microbiome composition between normal and BPH tissues, with Pseudomonas significantly enriched in BPH tissues, as confirmed by fluorescence in situ hybridization (FISH). Additionally, we showed that the prostate microbiome differed from the urine microbiome. In vitro experiments revealed that lipopolysaccharide (LPS) of Pseudomonas activated NF-κB signalling, leading to inflammation, proliferation, and EMT processes, while inhibiting apoptosis in prostatic cells. Overall, our research determines the presence of microbiome dysbiosis in BPH, and suggests that Pseudomonas, as the dominant microflora, may promote the progression of BPH through LPS activation of NF-κB signalling.
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Affiliation(s)
- Jiaren Li
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Youyou Li
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liang Zhou
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongming Li
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tengfei Wan
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jin Tang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lei Zhou
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Xie
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Long Wang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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Chen L, Cheng Y, Zhang G, Zhou Y, Zhang Z, Chen Q, Feng Y. WGBS of embryonic gonads revealed that long non-coding RNAs in the MHM region might be involved in cell autonomous sex identity and female gonadal development in chickens. Epigenetics 2024; 19:2283657. [PMID: 38037805 PMCID: PMC10761181 DOI: 10.1080/15592294.2023.2283657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 10/01/2023] [Indexed: 12/02/2023] Open
Abstract
DNA methylation plays a key role in sex determination and differentiation in vertebrates. However, there are few studies on DNA methylation involved in chicken gonad development, and most focused on male hypermethylated regions (MHM). It is unclear whether there are specific differentially methylated regions (DMRs) in chicken embryonic gonads regulating sex determination and differentiation. Here, the DNA methylation maps showed that the difference of DNA methylation level between sexes was much higher at embryonic day 10 (E10) than that at embryonic day 6 (E6), and the significant differentially methylated regions at both stages were mainly distributed on the Z chromosome, including MHM1 and MHM2. The results of bisulphite sequencing PCR (BSP) and qRT-PCR showed hypomethylation of female MHM and upregulation of long non-coding RNAs (lncRNAs) whose promoter in the MHM region was consistent with the sequencing results, and similar results were in brain and muscle. In female sex-reversed gonads, the methylation pattern of MHM remained unchanged, and the expression levels of the three candidate lncRNAs were significantly decreased compared with those in females, but were significantly increased compared to males. The fluorescence in situ hybridization (FISH) results also showed that these lncRNAs were highly expressed in female embryonic gonads. The results of methyltransferase inhibitor and dual-luciferase reporter assay suggest that lncRNA expression may be regulated by DNA methylation within their promoters. Therefore, we speculated that MHM may be involved in cell-autonomous sex identity in chickens, and that lncRNAs regulated by MHM may be involved in female sexual differentiation.
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Affiliation(s)
- Ligen Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Yu Cheng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Guixin Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Yang Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Zhen Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Qianhong Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Yanping Feng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
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Zhao J, Wang X, Wu Y, Zhao C. Krüppel-like factor 4 modulates the miR-101/COL10A1 axis to inhibit renal fibrosis after AKI by regulating epithelial-mesenchymal transition. Ren Fail 2024; 46:2316259. [PMID: 38345033 PMCID: PMC10863509 DOI: 10.1080/0886022x.2024.2316259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 02/03/2024] [Indexed: 02/15/2024] Open
Abstract
Acute kidney injury (AKI) can progress to renal fibrosis and chronic kidney disease (CKD), which reduces quality of life and increases the economic burden on patients. However, the molecular mechanisms underlying renal fibrosis following AKI remain unclear. This study tested the hypothesis that the Krüppel-like factor 4 (KLF4)/miR-101/Collagen alpha-1X (COL10A1) axis could inhibit epithelial-mesenchymal transition (EMT) and renal fibrosis after AKI in a mouse model of ischemia-reperfusion (I/R)-induced renal fibrosis and HK-2 cells by gene silencing, overexpression, immunofluorescence, immunohistochemistry, real-time quantitative PCR, Western blotting, dual-luciferase reporter assay, fluorescence in situ hybridization (FISH) and ELISA. Compared with the Sham group, I/R induced renal tubular and glomerular injury and fibrosis, and increased the levels of BUN, serum Scr and neutrophil gelatinase-associated lipocalin (NGAL), Col10a1 and Vimentin expression, but decreased E-cadherin expression in the kidney tissues of mice at 42 days post-I/R. Similarly, hypoxia promoted fibroblastic morphological changes in HK-2 cells and enhanced NGAL, COL10A1, Vimentin, and α-SMA expression, but reduced E-cadherin expression in HK-2 cells. These pathological changes were significantly mitigated in COL10A1-silenced renal tissues and HK-2 cells. KLF4 induces miR-101 transcription. More importantly, hypoxia upregulated Vimentin and COL10A1 expression, but decreased miR-101, KLF4, and E-cadherin expression in HK-2 cells. These hypoxic effects were significantly mitigated or abrogated by KLF4 over-expression in the HK-2 cells. Our data indicate that KLF4 up-regulates miR-101 expression, leading to the downregulation of COL10A1 expression, inhibition of EMT and renal fibrosis during the pathogenic process of I/R-related renal fibrosis.
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Affiliation(s)
- Jingying Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Xiuli Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yubin Wu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Chengguang Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
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Yan S, Teng L, Du J, Ji L, Xu P, Zhao W, Tao W. Long non‑coding RNA DANCR aggravates breast cancer through the miR‑34c/E2F1 feedback loop. Mol Med Rep 2024; 29:93. [PMID: 38577930 PMCID: PMC11025030 DOI: 10.3892/mmr.2024.13217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 03/11/2024] [Indexed: 04/06/2024] Open
Abstract
Emerging scientific evidence has suggested that the long non‑coding (lnc)RNA differentiation antagonizing non‑protein coding RNA (DANCR) serves a significant role in human tumorigenesis and cancer progression; however, the precise mechanism of its function in breast cancer remains to be fully understood. Therefore, the objective of the present study was to manipulate DANCR expression in MCF7 and MDA‑MB‑231 cells using lentiviral vectors to knock down or overexpress DANCR. This manipulation, alongside the analysis of bioinformatics data, was performed to investigate the potential mechanism underlying the role of DANCR in cancer. The mRNA and/or protein expression levels of DANCR, miR‑34c‑5p and E2F transcription factor 1 (E2F1) were assessed using reverse transcription‑quantitative PCR and western blotting, respectively. The interactions between these molecules were validated using chromatin immunoprecipitation and dual‑luciferase reporter assays. Additionally, fluorescence in situ hybridization was used to confirm the subcellular localization of DANCR. Cell proliferation, migration and invasion were determined using 5‑ethynyl‑2'‑deoxyuridine, wound healing and Transwell assays, respectively. The results of the present study demonstrated that DANCR had a regulatory role as a competing endogenous RNA and upregulated the expression of E2F1 by sequestering miR‑34c‑5p in breast cancer cells. Furthermore, E2F1 promoted DANCR transcription by binding to its promoter in breast cancer cells. Notably, the DANCR/miR‑34c‑5p/E2F1 feedback loop enhanced cell proliferation, migration and invasion in breast cancer cells. Thus, these findings suggested that targeting DANCR may potentially provide a promising future therapeutic strategy for breast cancer treatment.
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Affiliation(s)
- Shuai Yan
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Lizhi Teng
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Juntong Du
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Liang Ji
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Peng Xu
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Wenxi Zhao
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Weiyang Tao
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Acoustic, Optical and Electromagnetic Diagnosis and Treatment of Cardiovascular Diseases, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
- The Cell Transplantation Key Laboratory of National Health Commission, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Mincherton TI, Lam SJ, Clarke SE, Hui HYL, Malherbe JAJ, Chuah HS, Sidiqi MH, Fuller KA, Erber WN. Imaging flow cytometric detection of del(17p) in bone marrow and circulating plasma cells in multiple myeloma. Int J Lab Hematol 2024; 46:495-502. [PMID: 38379463 DOI: 10.1111/ijlh.14248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Detection of del(17p) in myeloma is generally performed by fluorescence in situ hybridization (FISH) on a slide with analysis of up to 200 nuclei. The small cell sample analyzed makes this a low precision test. We report the utility of an automated FISH method, called "immuno-flowFISH", to detect plasma cells with adverse prognostic risk del(17p) in bone marrow and blood samples of patients with myeloma. METHODS Bone marrow (n = 31) and blood (n = 19) samples from 35 patients with myeloma were analyzed using immuno-flowFISH. Plasma cells were identified by CD38/CD138-immunophenotypic gating and assessed for the 17p locus and centromere of chromosome 17. Cells were acquired on an AMNIS ImageStreamX MkII imaging flow cytometer using INSPIRE software. RESULTS Chromosome 17 abnormalities were identified in CD38/CD138-positive cells in bone marrow (6/31) and blood (4/19) samples when the percent plasma cell burden ranged from 0.03% to 100% of cells. Abnormalities could be identified in 14.5%-100% of plasma cells. CONCLUSIONS The "immuno-flowFISH" imaging flow cytometric method could detect del(17p) in plasma cells in both bone marrow and blood samples of myeloma patients. This method was also able to detect gains and losses of chromosome 17, which are also of prognostic significance. The lowest levels of 0.009% (bone marrow) and 0.001% (blood) for chromosome 17 abnormalities was below the detection limit of current FISH method. This method offers potential as a new means of identifying these prognostically important chromosomal defects, even when only rare cells are present and for serial disease monitoring.
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Affiliation(s)
- Thomas I Mincherton
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Stephanie J Lam
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Sarah E Clarke
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Henry Y L Hui
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Jacques A J Malherbe
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Hun S Chuah
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Royal Perth Hospital, Perth, Western Australia, Australia
| | - M Hasib Sidiqi
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Kathy A Fuller
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Wendy N Erber
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
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Hirasawa M, Kikuchi Y, Sato K, Yoshida A, Yamamoto A. FDG PET/CT and MRI Findings of Extraskeletal Myxoid Chondrosarcoma Showing a Nonmyxoid Cellular Variant. Clin Nucl Med 2024; 49:434-437. [PMID: 38557577 DOI: 10.1097/rlu.0000000000005146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
ABSTRACT We present a new, extremely rare nonmyxoid cellular variant of extraskeletal myxoid chondrosarcoma. Although diagnosis is radiologically and pathologically challenging, FDG PET/CT and MRI accurately showed the malignancy and high tumor density. A 52-year-old woman complained of a left dorsal mass, which presented inhomogeneous intermediate signals on T2-weighted images, with diffusion restriction, strong enhancement, and increased accumulation of FDG (SUV max , 5.2). Although biopsy was inconclusive, a highly malignant tumor was suspected radiologically. The resected specimen was histologically diagnosed as extraskeletal myxoid chondrosarcoma by detection of EWSR1::NR4A3 fusion using fluorescence in situ hybridization.
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Affiliation(s)
| | | | - Kenji Sato
- Orthopaedic Surgery, Teikyo University School of Medicine
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
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Cordier F, Van Roy N, Matthys B, De Paepe P, Van de Vijver K, Van Dorpe J, Creytens D. Fibroepithelial Stromal Polyp of the Vulvovaginal Region as Part of the RB1 Family of Tumors: Friend or Foe? Int J Gynecol Pathol 2024; 43:215-220. [PMID: 37922949 DOI: 10.1097/pgp.0000000000000998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Fibroepithelial stromal polyps (FSPs) are benign mesenchymal lesions occurring in the vulvovaginal region. Following the identification of loss of Retinoblastoma 1 (RB1) on immunohistochemical staining in routine practice, we stained a series of FSPs and performed additional fluorescence in situ hybridization (FISH) and copy number variation (CNV) sequencing to detect losses/deletions in the Retinoblastoma transcriptional corepressor 1 (RB1) gene. Fifteen FSP cases were stained for RB1, and subsequently, 9 cases were examined by FISH to detect a loss of RB1 (13q). Next, CNV sequencing was performed to assess genomic alterations. The mean age of the patients was 50 years. Loss of RB1 expression on immunohistochemistry was seen in 13 cases, and heterogeneous RB1 staining in the remaining 2 cases. FISH showed deletion of RB1 in all of the cases. CNV sequencing failed in almost all cases due to a low tumor content. Based on our findings, we hypothesize that FSPs are part of a spectrum of genetically related lesions, namely the 13q/RB1 family of tumors (which includes pleomorphic fibromas and spindle cell/pleomorphic lipomas). Due to the clinical, morphologic, and molecular overlap, we suggest that FSPs are pleomorphic fibromas occurring in the specialized stroma of the genital region.
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Baelen J, Dewaele B, Debiec-Rychter M, Sciot R, Schöffski P, Hompes D, Sinnaeve F, Wafa H, Vanden Bempt I. Optical Genome Mapping for Comprehensive Cytogenetic Analysis of Soft-Tissue and Bone Tumors for Diagnostic Purposes. J Mol Diagn 2024; 26:374-386. [PMID: 38395407 DOI: 10.1016/j.jmoldx.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 01/21/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Soft-tissue and bone tumors represent a heterogeneous group of tumors encompassing more than 100 histologic subtypes today. Identifying genetic aberrations increasingly is important in these tumors for accurate diagnosis. Although gene mutations typically are detected by second-generation sequencing, the identification of structural variants (SVs) and copy number alterations (CNAs) remains challenging and requires various cytogenetic techniques including karyotyping, fluorescence in situ hybridization, and arrays, each with important limitations. Optical Genome Mapping (OGM), a non-sequencing-based technique for high-resolution detection of SVs and CNAs, was applied in a retrospective series of diagnostic soft-tissue and bone tumor samples. Sample preparation was successful in 38 of 53 cases, with the highest success rate in nonadipocytic soft-tissue tumors (24 of 27 cases; 89%). In 32 of 35 cases carrying a diagnostic SV or CNA, OGM identified the aberration (91%), including a POU2AF3::EWSR1 fusion in a round cell sarcoma and a translocation t(1;5)(p22;p15) in a myxoinflammatory fibroblastic sarcoma. Interestingly, OGM shed light on the genomic complexity underlying the various aberrations. In five samples, OGM showed that chains of rearrangements generated the diagnostic fusion, three of which involved chromoplexy. In addition, in nine samples, chromothripsis was causal to the formation of giant marker/ring/double-minute chromosomes. Finally, compared with standard-of-care cytogenetics, OGM revealed additional aberrations, requiring further investigation of their potential clinical relevance.
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Affiliation(s)
- Jef Baelen
- Department of Human Genetics, KU Leuven, University Hospitals Leuven, Leuven, Belgium.
| | - Barbara Dewaele
- Department of Human Genetics, KU Leuven, University Hospitals Leuven, Leuven, Belgium
| | - Maria Debiec-Rychter
- Department of Human Genetics, KU Leuven, University Hospitals Leuven, Leuven, Belgium
| | - Raphael Sciot
- Department of Imaging and Pathology, KU Leuven, University Hospitals Leuven, Leuven, Belgium
| | - Patrick Schöffski
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium; Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Daphne Hompes
- Department of Surgical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Friedl Sinnaeve
- Department of Orthopaedic Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Hazem Wafa
- Department of Orthopaedic Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Isabelle Vanden Bempt
- Department of Human Genetics, KU Leuven, University Hospitals Leuven, Leuven, Belgium
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10
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Fu YF, Guo YX, Xia SH, Zhou TT, Zhao YC, Jia ZH, Zhang Y. Eldecalcitol protected osteocytes against ferroptosis of D-gal-induced senescent MLO-Y4 cells and ovariectomized mice. Exp Gerontol 2024; 189:112408. [PMID: 38521178 DOI: 10.1016/j.exger.2024.112408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Active vitamin D analog eldecalcitol is clinically applied in treatment of postmenopausal osteoporosis. This study aims to determine the role of eldecalcitol in the protection of osteocytes from senescence and the associated ferroptosis. METHODS The MLO-Y4 osteocytes were exposed to D-gal inducing senescence. The ovariectomized (OVX) mice treated with D-gal using as an aging inducer were intraperitoneally injected with eldecalcitol. The multiplexed confocal imaging, fluorescence in situ hybridization and transmission electron microscopy were applied in assessing osteocytic properties. Immunochemical staining and immunoblotting were carried out to detect abundance and expression of molecules. RESULTS The ablation of vitamin D receptor led to a reduction in amounts of osteocytes, a loss of dendrites, an increase in mRNA expression of SASP factors and in protein expression of senescent factors, as well as changes in mRNA expression of ferroptosis-related genes (PTGS2 & RGS4). Eldecalcitol reversed senescent phenotypes of MLO-Y4 cells shown by improving cell morphology and density, decreasing β-gal-positive cell accumulation, and down-regulating protein expression (P16, P21 & P53). Eldecalcitol reduced intracellular ROS and MDA productions, elevated JC-1 aggregates, and up-regulated expression of Nrf2 and GPX4. Eldecalcitol exhibited osteopreserve effects in D-gal-induced aging OVX mice. The confocal imaging displayed its improvement on osteocytic network organization. Eldecalcitol decreased the numbers of senescent osteocytes at tibial diaphysis by SADS assay and attenuated mRNA expression of SASP factors as well as down-regulated protein expression of senescence-related factors and restored levels of ferroptotic biomarkers in osteocytes-enriched bone fraction. It reduced 4-HNE staining area, stimulated Nrf2-positive staining, and promoted nuclear translocation of Nrf2 in osteocytes of mice as well as inhibited and promoted protein expression of 4-HNE and Nrf2, respectively, in osteocytes-enriched bone fraction. CONCLUSIONS The present study revealed the ameliorative effects of eldecalcitol on senescence and the associated ferroptosis of osteocytes, contributing to its preservation against osteoporosis of D-gal-induced senescent ovariectomized mice.
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Affiliation(s)
- Yong-Fang Fu
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai 200032, China
| | - Yi-Xun Guo
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai 200032, China
| | - Shi-Hui Xia
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai 200032, China
| | - Ting-Ting Zhou
- Experimental Research Center, Cangzhou Hospital of Integrated TCM-WM, Cangzhou 061001, China
| | - Yun-Chao Zhao
- Experimental Research Center, Cangzhou Hospital of Integrated TCM-WM, Cangzhou 061001, China
| | - Zhen-Hua Jia
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang 050035, China.
| | - Yan Zhang
- Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai 200032, China.
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11
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Tan L, Wu DD, Zhang CB, Cheng YR, Sha LN, Fan X, Kang HY, Wang Y, Zhang HQ, Escudero M, Zhou YH. Genome constitution and evolution of Elymus atratus (Poaceae: Triticeae) inferred from cytogenetic and phylogenetic analysis. Genes Genomics 2024; 46:589-599. [PMID: 38536618 DOI: 10.1007/s13258-024-01496-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 01/21/2024] [Indexed: 04/18/2024]
Abstract
BACKGROUND Elymus atratus (Nevski) Hand.-Mazz. is perennial hexaploid wheatgrass. It was assigned to the genus Elymus L. sensu stricto based on morphological characters. Its genome constitution has not been disentangled yet. OBJECTIVE To identify the genome constitution and origin of E. atratus. METHODS In this study, genomic in situ hybridization and fluorescence in situ hybridization, and phylogenetic analysis based on the Acc1, DMC1 and matK sequences were performed. RESULTS Genomic in situ hybridization and fluorescence in situ hybridization results reveal that E. atratus 2n = 6x = 42 is composed of 14 St genome chromosomes, 14 H genome chromosomes, and 14 Y genome chromosomes including two H-Y type translocation chromosomes, suggesting that the genome formula of E. atratus is StStYYHH. The phylogenetic analysis based on Acc1 and DMC1 sequences not only shows that the Y genome originated in a separate diploid, but also suggests that Pseudoroegneria (St), Hordeum (H), and a diploid species with Y genome were the potential donors of E. atratus. Data from chloroplast DNA showed that the maternal donor of E. atratus contains the St genome. CONCLUSION Elymus atratus is an allohexaploid species with StYH genome, which may have originated through the hybridization between an allotetraploid Roegneria (StY) species as the maternal donor and a diploid Hordeum (H) species as the paternal donor.
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Affiliation(s)
- Lu Tan
- Panxi Crops Research and Utilization Key Laboratory of Sichuan Province, Xichang University, Xichang, 615000, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China.
| | - Dan-Dan Wu
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Chang-Bing Zhang
- Sichuan Academy of Grassland Science, Chengdu, 610000, Sichuan, China
| | - Yi-Ran Cheng
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Li-Na Sha
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Xing Fan
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Hou-Yang Kang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Yi Wang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Hai-Qin Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China
| | - Marcial Escudero
- Department of Plant Biology and Ecology, University of Sevilla, Sevilla, Spain
| | - Yong-Hong Zhou
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China.
- State Key Laboratory of Crop Genetic Exploration and Utilization in Southwest China, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, Sichuan, China.
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12
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Kläger J, Schmidinger M, Oszwald A, Wasinger G, Fajkovic H, Compérat E. Metastatic Translocated Renal Cell Carcinoma in a Kidney Transplant Patient - a Case Report and Review of the Literature. Int J Surg Pathol 2024; 32:594-600. [PMID: 37415400 PMCID: PMC11025305 DOI: 10.1177/10668969231185070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/06/2023] [Accepted: 06/06/2023] [Indexed: 07/08/2023]
Abstract
TFEB-altered renal cell carcinomas are rare tumours. Here, we report the exceptional case of such a tumour in the setting of solid organ transplantation and with already metastatic disease at the time of diagnosis. The primary tumour occurred in the native kidney and only focally showed biphasic morphology whereas the metastasis, among others to the transplant kidney, showed nonspecific, albeit different morphology, but both had consistent TFEB translocation. Treatment with the immune checkpoint inhibitor pembrolizumab together with the multi-kinase inhibitor lenvatinib achieved partial response 14 months after diagnosis.
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Affiliation(s)
- Johannes Kläger
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | | | - André Oszwald
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | - Gabriel Wasinger
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | - Harun Fajkovic
- Department of Urology, Medical University of Vienna, Wien, Austria
| | - Eva Compérat
- Department of Pathology, Medical University of Vienna, Wien, Austria
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13
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Qin X, Chen H, Zheng W, Zhu X, Gao J. METTL3 modification of circStk4 affects mouse glomerular messangial cell autophagy, proliferation and apotosis by regulating miR-133a-3p/C1 axis. Cell Signal 2024; 117:111091. [PMID: 38331014 DOI: 10.1016/j.cellsig.2024.111091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE The study aimed to explore the impact of N6-methyladenosine (m6A) modification in circStk4 on glomerular mesangial cells (GMCs) autophagy, proliferation and apoptosis. METHODS The interactions between circStk4 and miR-133a-3p, miR-133a-3p and C1 were demonstrated through luciferase reporter assays. The circStk4 localization was analyzed using fluorescence in situ hybridization and nuclear/cytosol fractionation assays. Colorimetric assays, MeRIP-qPCR, and western blot (WB) were employed to confirm the m6A modification of circStk4 and identify the key methylation enzyme. RT-qPCR was conducted to determine the impact of METTL3 on the circStk4 RNA expression. Additionally, CCK-8, flow cytometry, transmission electron microscopy, immunofluorescence, WB and RT-qPCR were employed to investigate the effects of METTL3 or circStk4 on the proliferation, autophagy and apoptosis of GMCs. Enzyme-linked immunosorbent assay was utilized to assess the inflammatory factors. RESULTS m6A modifications were found in circStk4 and METTL3 was a key methylating enzyme. Furthermore, it was observed that circStk4 competitively bound miR-133a-3p and increased C1 levels. Silencing circStk4 resulted in decreased GMCs proliferation, increased autophagy and apoptosis, and reduced inflammation levels. Additionally, METTL3 played a role in inhibiting GMCs proliferation and promoting autophagy and apoptosis by regulating the circStk4 expression. On verifying the interplay between autophagy, proliferation and apoptosis, and found that the inhibition of autophagy led to an increase in cell proliferation and a decrease in apoptosis. CONCLUSION m6A modification of circStk4 mediated by METTL3 influenced circStk4 expression and impacted autophagy, proliferation and apoptosis in GMCs via the miR-133a-3p/C1 axis. This discovery introduces a novel therapeutic approach for CGN treatment.
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Affiliation(s)
- Xiujuan Qin
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Huiyu Chen
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230011, China
| | - Wenjia Zheng
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230011, China
| | - Xiaoli Zhu
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China
| | - Jiarong Gao
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
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14
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Shomali W, Gotlib J. World Health Organization and International Consensus Classification of eosinophilic disorders: 2024 update on diagnosis, risk stratification, and management. Am J Hematol 2024; 99:946-968. [PMID: 38551368 DOI: 10.1002/ajh.27287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 04/09/2024]
Abstract
DISEASE OVERVIEW The eosinophilias encompass a broad range of non-hematologic (secondary or reactive) and hematologic (primary or clonal) disorders with the potential for end-organ damage. DIAGNOSIS Hypereosinophilia (HE) has generally been defined as a peripheral blood eosinophil count greater than 1.5 × 109/L, and may be associated with tissue damage. After the exclusion of secondary causes of eosinophilia, diagnostic evaluation of primary eosinophilias relies on a combination of various tests. They include morphologic review of the blood and marrow, standard cytogenetics, fluorescence in situ hybridization, molecular testing and flow immunophenotyping to detect histopathologic or clonal evidence for an acute or chronic hematolymphoid neoplasm. RISK STRATIFICATION Disease prognosis relies on identifying the subtype of eosinophilia. After evaluation of secondary causes of eosinophilia, the 2022 World Health Organization and International Consensus Classification endorse a semi-molecular classification scheme of disease subtypes. This includes the major category "myeloid/lymphoid neoplasms with eosinophilia and tyrosine kinase gene fusions" (MLN-eo-TK), and the MPN subtype, "chronic eosinophilic leukemia" (CEL). Lymphocyte-variant HE is an aberrant T-cell clone-driven reactive eosinophila, and idiopathic hypereosinophilic syndrome (HES) is a diagnosis of exclusion. RISK-ADAPTED THERAPY The goal of therapy is to mitigate eosinophil-mediated organ damage. For patients with milder forms of eosinophilia (e.g., <1.5 × 109/L) without symptoms or signs of organ involvement, a watch and wait approach with close follow-up may be undertaken. Identification of rearranged PDGFRA or PDGFRB is critical because of the exquisite responsiveness of these diseases to imatinib. Pemigatinib was recently approved for patients with relapsed or refractory FGFR1-rearranged neoplasms. Corticosteroids are first-line therapy for patients with lymphocyte-variant HE and HES. Hydroxyurea and interferon-α have demonstrated efficacy as initial treatment and in steroid-refractory cases of HES. Mepolizumab, an interleukin-5 (IL-5) antagonist monoclonal antibody, is approved by the U.S Food and Drug Administration for patients with idiopathic HES. Cytotoxic chemotherapy agents, and hematopoietic stem cell transplantation have been used for aggressive forms of HES and CEL, with outcomes reported for limited numbers of patients. Targeted therapies such as the IL-5 receptor antibody benralizumab, IL-5 monoclonal antibody depemokimab, and various tyrosine kinase inhibitors for MLN-eo-TK, are under active investigation.
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Affiliation(s)
- William Shomali
- Division of Hematology, Stanford Cancer Institute/Stanford University School of Medicine, Stanford, California, USA
| | - Jason Gotlib
- Division of Hematology, Stanford Cancer Institute/Stanford University School of Medicine, Stanford, California, USA
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15
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Gao X, Xu S, Zhu P, Lao IW, Yu L, Wang J. Primary NTRK -rearranged Spindle Cell Neoplasm of the Gastrointestinal Tract: A Clinicopathological and Molecular Analysis of 8 Cases. Am J Surg Pathol 2024; 48:623-631. [PMID: 38525823 DOI: 10.1097/pas.0000000000002202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
NTRK-rearranged spindle cell neoplasm occurs predominantly in the superficial or deep soft tissues of extremities or trunk. Occurrence in the visceral organs is extremely rare. Herein, we describe 8 cases of NTRK-rearranged spindle cell neoplasm that arose primarily in the gastrointestinal tract. Patients included 5 males and 3 females with age at presentation ranging from 6 to 63 years (median: 29.5 years). Tumors occurred in the colon (n=3), small intestine (n=2), rectum (n=2), and stomach (n=1). Tumor size ranged from 3.5 to 9 cm (median: 5 cm). Morphologically, 4 tumors were low-grade, composed of haphazard or intertwining fascicles of spindle cells, with prominent interstitial collagen fibers and ring-like perivascular hyalinization being present in 2 tumors. The other 4 tumors were histologically high-grade sarcomas, consisting of sweeping fascicles of atypical spindle cells showing increased cellularity and brisk mitotic activity. Immunohistochemically, 6/6 cases (100%) showed diffuse and strong cytoplasmic staining of pan-TRK. Variable expression of TrkA, CD34, and S100 was noted in 5/5 (100%), 5/8 (62.5%), and 4/7 (57.1%) cases, respectively. Fluorescence in situ hybridization analysis showed NTRK1 rearrangement (n=7) and NTRK2 rearrangement (n=1). In cases with available materials, RNA sequencing identified LMNA::NTRK1 (n=3), TPM3::NTRK1 (n=2), and STRN::NTRK2 (n=1) fusions. At follow-up (range: 4 to 30 months; median: 12.5 months), 6 of 7 patients who underwent surgery had no evidence of disease at last follow-up. One patient was succumbed to the disease at 12 months despite adjunctive treatment with TRK inhibitor larotrectinib after surgery. One patient was treated with larotrectinib alone. He showed significant response at 7 months after treatment. NTRK-rearranged spindle cell neoplasm represents an exceptionally rare entity in the gastrointestinal tract. The presence of interstitial collagen fibers and ring-like perivascular hyalinization and co-expression of CD34 and S100 are diagnostic clues to low-grade neoplasms. However, high-grade sarcomas pose a considerable diagnostic challenge to pathologists owing to the lack of specific features. The final diagnosis relies on molecular assays. Patients with advanced disease may benefit from TRK inhibitor treatment.
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Affiliation(s)
- Xiaojiao Gao
- Department of Pathology, Fudan University Shanghai Cancer Center
- Department of Pathology, The First People's Hospital of Kunshan, Kunshan, Jiangsu, China
| | - Song Xu
- Department of Pathology, The First People's Hospital of Kunshan, Kunshan, Jiangsu, China
| | - Peipei Zhu
- Department of Pathology, Fudan University Shanghai Cancer Center
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai
| | - I Weng Lao
- Department of Pathology, Fudan University Shanghai Cancer Center
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai
| | - Lin Yu
- Department of Pathology, Fudan University Shanghai Cancer Center
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai
| | - Jian Wang
- Department of Pathology, Fudan University Shanghai Cancer Center
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai
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16
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Dashti NK, Jebastin Thangaiah J, Gliem T, Knutson D, Kloft-Nelson S, Armstrong SM, Bakhshwin A, Greipp P, Fritchie KJ. MDM2 Amplification Status in a Cohort of Well-Characterized Myxofibrosarcoma: A Clinicopathologic Analysis of 22 Tumors. Int J Surg Pathol 2024; 32:478-485. [PMID: 37501528 DOI: 10.1177/10668969231186930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Myxofibrosarcomas (MFS) present as slowly enlarging superficial masses in elderly patients. Even though these tumors fail to exhibit a distinct immunophenotype, diagnosis is straightforward when they present in subcutaneous tissue. Intramuscular MFS, however, are more challenging to diagnose as the differential also includes dedifferentiated liposarcoma with myxoid features. The vast majority of dedifferentiated liposarcomas show MDM2 amplification, whereas limited data exists as to the MDM2 status of MFS. We sought to explore the rate of MDM2 amplification in cases of classic MFS. Our archives were searched for MFS; only subcutaneous well-sampled resections were included. FISH for MDM2 amplification was performed on each tumor. A cohort of myxoid dedifferentiated liposarcoma resections was studied for comparison. Twenty-two MFS arose in patients aged 44 to 85 years. All tumors contained an infiltrative population of atypical cells embedded in a myxoid stroma with curvilinear blood vessels. MDM2 amplification by FISH was identified in 3 (of 22; 14%) tumors. Available follow up on 17 patients (range 1-96 months; median 13 months) revealed 6 patients with local recurrence and 1 with distant metastasis. Of 3 patients with MDM2- amplified MFS, 1 experienced recurrence and died of unrelated causes, while the second was alive without disease 12 months after diagnosis. Even though the rate of MDM2 amplification by FISH in MFS appears to be low, a subset of cases may show this genetic alteration, which pathologists should be aware of to avoid misclassification as myxoid dedifferentiated liposarcomas. Further studies are necessary to determine if amplification status adds prognostic value.
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Affiliation(s)
- Nooshin K Dashti
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Troy Gliem
- Division of Laboratory Genetics and Genomics, Mayo Clinic, Rochester, MN, USA
| | - Darlene Knutson
- Division of Laboratory Genetics and Genomics, Mayo Clinic, Rochester, MN, USA
| | - Sara Kloft-Nelson
- Division of Laboratory Genetics and Genomics, Mayo Clinic, Rochester, MN, USA
| | - Susan M Armstrong
- Department of Pathology, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Ahmed Bakhshwin
- Department of Pathology, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Patricia Greipp
- Division of Laboratory Genetics and Genomics, Mayo Clinic, Rochester, MN, USA
| | - Karen J Fritchie
- Department of Pathology, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
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17
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Chen B, Weng Y, Li M, Bian Z, Tao Y, Zhou W, Lu H, He S, Liao R, Huang J, Wang Q, Xu M, Ge Y, Cao W, Lei M, Zhang Y. LINC02454-CCT complex interaction is essential for telomerase activity and cell proliferation in head and neck squamous cell carcinoma. Cancer Lett 2024; 588:216734. [PMID: 38401886 DOI: 10.1016/j.canlet.2024.216734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/26/2024]
Abstract
Telomerase activity is upregulated in head and neck squamous cell carcinoma (HNSCC), yet its regulatory mechanisms remain unclear. Here, we identified a cancer-specific lncRNA (LINC02454) associated with poor prognosis by using LncRNA chip of our HNSCC cohorts and external datasets. Through employing negative-stain transmission electron microscopy (NS-TEM), we discovered an interaction between LINC02454 and CCT complex which would augment telomerase activity for maintaining telomere homeostasis. Supporting this, in the telomerase repeat amplification protocol (TRAP) assay and quantitative fluorescence in situ hybridization (Q-FISH) analysis, LINC02454 depletion significantly reduced telomerase activity and shortened telomere length. Consistently, pathways related to telomerase, mitosis, and apoptosis were significantly impacted upon LINC02454 knockdown in RNAseq analysis. Functionally, LINC02454-deficient cells exhibited a more significant senescence phenotype in β-galactosidase staining, cell cycle, and apoptosis assays. We further confirmed the role of LINC02454 in HNSCC proliferation through a combination of in vitro and in vivo experiments. The therapeutic potential of targeting LINC02454 was verified by adenovirus-shRNA approach in HNSCC patient-derived xenograft (PDX) models. In summary, our findings provided valuable insights into the molecular mechanisms of HNSCC tumorigenesis and potential targets for future treatment modalities.
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Affiliation(s)
- Biying Chen
- Department of Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201900, China; Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Yue Weng
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Mingyue Li
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhouliang Bian
- Department of Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201900, China; Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Ye Tao
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wenkai Zhou
- Department of Oral Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - Hong Lu
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Shufang He
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Rijing Liao
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jie Huang
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Qian Wang
- Department of Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201900, China; Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Ming Xu
- Department of Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201900, China; Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Yunhui Ge
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wei Cao
- Department of Oral Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China.
| | - Ming Lei
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Yanjie Zhang
- Department of Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201900, China; Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China.
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18
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Wilcock DM, Goold E, Zuromski LM, Davidson C, Mao Q, Sirohi D. EGFR/CEP7 high polysomy is separate and distinct from EGFR amplification in glioblastoma as determined by fluorescence in situ hybridization. J Neuropathol Exp Neurol 2024; 83:338-344. [PMID: 38605523 PMCID: PMC11029461 DOI: 10.1093/jnen/nlae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024] Open
Abstract
EGFR amplification in gliomas is commonly defined by an EGFR/CEP7 ratio of ≥2. In testing performed at a major reference laboratory, a small subset of patients had ≥5 copies of both EGFR and CEP7 yet were not amplified by the EGFR/CEP7 ratio and were designated high polysomy cases. To determine whether these tumors are more closely related to traditionally defined EGFR-amplified or nonamplified gliomas, a retrospective search identified 22 out of 1143 (1.9%) gliomas with an average of ≥5 copies/cell of EGFR and CEP7 with an EGFR/CEP7 ratio of <2 displaying high polysomy. Of these cases, 4 had insufficient clinicopathologic data to include in additional analysis, 15 were glioblastomas, 2 were IDH-mutant astrocytomas, and 1 was a high-grade glial neoplasm, NOS. Next-generation sequencing available on 3 cases demonstrated one with a TERT promoter mutation, TP53 mutations in all cases, and no EGFR mutations or amplifications, which most closely matched the nonamplified cases. The median overall survival times were 42.86, 66.07, and 41.14 weeks for amplified, highly polysomic, and nonamplified, respectively, and were not significantly different (p = 0.3410). High chromosome 7 polysomic gliomas are rare but our data suggest that they may be biologically similar to nonamplified gliomas.
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Affiliation(s)
- Diane M Wilcock
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
| | - Eric Goold
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
- Department of Pathology, University of Utah and ARUP Laboratories, Salt Lake City, Utah, USA
| | - Lauren M Zuromski
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
| | - Christian Davidson
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
- Department of Pathology, University of Utah and ARUP Laboratories, Salt Lake City, Utah, USA
| | - Qinwen Mao
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
- Department of Pathology, University of Utah and ARUP Laboratories, Salt Lake City, Utah, USA
| | - Deepika Sirohi
- Institute for Experimental Pathology, ARUP Laboratories, Salt Lake City, Utah, USA
- Department of Pathology, University of Utah and ARUP Laboratories, Salt Lake City, Utah, USA
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19
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Nie F, Zhang J, Tian H, Zhao J, Gong P, Wang H, Wang S, Yang P, Yang C. The role of CXCL2-mediated crosstalk between tumor cells and macrophages in Fusobacterium nucleatum-promoted oral squamous cell carcinoma progression. Cell Death Dis 2024; 15:277. [PMID: 38637499 PMCID: PMC11026399 DOI: 10.1038/s41419-024-06640-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024]
Abstract
Dysbiosis of the oral microbiota is related to chronic inflammation and carcinogenesis. Fusobacterium nucleatum (Fn), a significant component of the oral microbiota, can perturb the immune system and form an inflammatory microenvironment for promoting the occurrence and progression of oral squamous cell carcinoma (OSCC). However, the underlying mechanisms remain elusive. Here, we investigated the impacts of Fn on OSCC cells and the crosstalk between OSCC cells and macrophages. 16 s rDNA sequencing and fluorescence in situ hybridization verified that Fn was notably enriched in clinical OSCC tissues compared to paracancerous tissues. The conditioned medium co-culture model validated that Fn and macrophages exhibited tumor-promoting properties by facilitating OSCC cell proliferation, migration, and invasion. Besides, Fn and OSCC cells can recruit macrophages and facilitate their M2 polarization. This crosstalk between OSCC cells and macrophages was further enhanced by Fn, thereby amplifying this positive feedback loop between them. The production of CXCL2 in response to Fn stimulation was a significant mediator. Suppression of CXCL2 in OSCC cells weakened Fn's promoting effects on OSCC cell proliferation, migration, macrophage recruitment, and M2 polarization. Conversely, knocking down CXCL2 in macrophages reversed the Fn-induced feedback effect of macrophages on the highly invasive phenotype of OSCC cells. Mechanistically, Fn activated the NF-κB pathway in both OSCC cells and macrophages, leading to the upregulation of CXCL2 expression. In addition, the SCC7 subcutaneous tumor-bearing model in C3H mice also substantiated Fn's ability to enhance tumor progression by facilitating cell proliferation, activating NF-κB signaling, up-regulating CXCL2 expression, and inducing M2 macrophage infiltration. However, these effects were reversed by the CXCL2-CXCR2 inhibitor SB225002. In summary, this study suggests that Fn contributes to OSCC progression by promoting tumor cell proliferation, macrophage recruitment, and M2 polarization. Simultaneously, the enhanced CXCL2-mediated crosstalk between OSCC cells and macrophages plays a vital role in the pro-cancer effect of Fn.
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Affiliation(s)
- Fujiao Nie
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Jie Zhang
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong, China
| | - Haoyang Tian
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Jingjing Zhao
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Pizhang Gong
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Huiru Wang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Suli Wang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Pishan Yang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China.
| | - Chengzhe Yang
- Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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20
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Guo Y, Huang C, Qiu L, Fu J, Xu C, Yang F. CircTHBS1 promotes trophoblast cell migration and invasion and inhibits trophoblast apoptosis by regulating miR-136-3p/IGF2R axis. FASEB J 2024; 38:e23598. [PMID: 38581244 DOI: 10.1096/fj.202302113rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/16/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
The precise molecular mechanism behind fetal growth restriction (FGR) is still unclear, although there is a strong connection between placental dysfunction, inadequate trophoblast invasion, and its etiology and pathogenesis. As a new type of non-coding RNA, circRNA has been shown to play a crucial role in the development of FGR. This investigation identified the downregulation of hsa_circ_0034533 (circTHBS1) in FGR placentas through high-sequencing analysis and confirmed this finding in 25 clinical placenta samples using qRT-PCR. Subsequent in vitro functional assays demonstrated that silencing circTHBS1 inhibited trophoblast proliferation, migration, invasion, and epithelial mesenchymal transition (EMT) progression and promoted apoptosis. Furthermore, when circTHBS1 was overexpressed, cell function experiments showed the opposite result. Analysis using fluorescence in situ hybridization revealed that circTHBS1 was primarily found in the cytoplasmic region. Through bioinformatics analysis, we anticipated the involvement of miR-136-3p and IGF2R in downstream processes, which was subsequently validated through qRT-PCR and dual-luciferase assays. Moreover, the inhibition of miR-136-3p or the overexpression of IGF2R partially reinstated proliferation, migration, and invasion abilities following the silencing of circTHBS1. In summary, the circTHBS1/miR-136-3p/IGF2R axis plays a crucial role in the progression and development of FGR, offering potential avenues for the exploration of biological indicators and treatment targets.
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Affiliation(s)
- Yanyan Guo
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chuyi Huang
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Liyan Qiu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiahui Fu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Cailing Xu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fang Yang
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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21
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Kairišs K, Sokolova N, Zilova L, Schlagheck C, Reinhardt R, Baumbach T, Faragó T, van de Kamp T, Wittbrodt J, Weinhardt V. Visualisation of gene expression within the context of tissues using an X-ray computed tomography-based multimodal approach. Sci Rep 2024; 14:8543. [PMID: 38609416 PMCID: PMC11015006 DOI: 10.1038/s41598-024-58766-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The development of an organism is orchestrated by the spatial and temporal expression of genes. Accurate visualisation of gene expression patterns in the context of the surrounding tissues offers a glimpse into the mechanisms that drive morphogenesis. We developed correlative light-sheet fluorescence microscopy and X-ray computed tomography approach to map gene expression patterns to the whole organism`s 3D anatomy. We show that this multimodal approach is applicable to gene expression visualized by protein-specific antibodies and fluorescence RNA in situ hybridisation offering a detailed understanding of individual phenotypic variations in model organisms. Furthermore, the approach offers a unique possibility to identify tissues together with their 3D cellular and molecular composition in anatomically less-defined in vitro models, such as organoids. We anticipate that the visual and quantitative insights into the 3D distribution of gene expression within tissue architecture, by multimodal approach developed here, will be equally valuable for reference atlases of model organisms development, as well as for comprehensive screens, and morphogenesis studies of in vitro models.
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Affiliation(s)
- Kristaps Kairišs
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
| | - Natalia Sokolova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Lucie Zilova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
| | - Christina Schlagheck
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Robert Reinhardt
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- European Molecular Biology Laboratory, Heidelberg, Germany
| | - Tilo Baumbach
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Tomáš Faragó
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Thomas van de Kamp
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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22
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Redaelli S, Grati FR, Tritto V, Giannuzzi G, Recalcati MP, Sala E, Villa N, Crosti F, Roversi G, Malvestiti F, Zanatta V, Repetti E, Rodeschini O, Valtorta C, Catusi I, Romitti L, Martinoli E, Conconi D, Dalprà L, Lavitrano M, Riva P, Bentivegna A. Olfactory receptor genes and chromosome 11 structural aberrations: Players or spectators? HGG Adv 2024; 5:100261. [PMID: 38160254 PMCID: PMC10820794 DOI: 10.1016/j.xhgg.2023.100261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/03/2024] Open
Abstract
The largest multi-gene family in metazoans is the family of olfactory receptor (OR) genes. Human ORs are organized in clusters over most chromosomes and seem to include >0.1% the human genome. Because 369 out of 856 OR genes are mapped on chromosome 11 (HSA11), we sought to determine whether they mediate structural rearrangements involving this chromosome. To this aim, we analyzed 220 specimens collected during diagnostic procedures involving structural rearrangements of chromosome 11. A total of 222 chromosomal abnormalities were included, consisting of inversions, deletions, translocations, duplications, and one insertion, detected by conventional chromosome analysis and/or fluorescence in situ hybridization (FISH) and array comparative genomic hybridization (array-CGH). We verified by bioinformatics and statistical approaches the occurrence of breakpoints in cytobands with or without OR genes. We found that OR genes are not involved in chromosome 11 reciprocal translocations, suggesting that different DNA motifs and mechanisms based on homology or non-homology recombination can cause chromosome 11 structural alterations. We also considered the proximity between the chromosomal territories of chromosome 11 and its partner chromosomes involved in the translocations by using the deposited Hi-C data concerning the possible occurrence of chromosome interactions. Interestingly, most of the breakpoints are located in regions highly involved in chromosome interactions. Further studies should be carried out to confirm the potential role of chromosome territories' proximity in promoting genome structural variation, so fundamental in our understanding of the molecular basis of medical genetics and evolutionary genetics.
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Affiliation(s)
- Serena Redaelli
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Francesca Romana Grati
- R&D, Cytogenetics, Molecular Genetics and Medical Genetics Unit, Toma Advanced Biomedical Assays S.p.A. (ImpactLab), 21052 Busto Arsizio, Italy
| | - Viviana Tritto
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20122 Milan, Italy
| | | | - Maria Paola Recalcati
- IRCCS Istituto Auxologico Italiano, Medical Cytogenetics Laboratory, 20095 Cusano Milanino, Italy
| | - Elena Sala
- UC Medical Genetics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Nicoletta Villa
- UC Medical Genetics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Francesca Crosti
- UC Medical Genetics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Gaia Roversi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; UC Medical Genetics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Francesca Malvestiti
- R&D, Cytogenetics, Molecular Genetics and Medical Genetics Unit, Toma Advanced Biomedical Assays S.p.A. (ImpactLab), 21052 Busto Arsizio, Italy
| | - Valentina Zanatta
- R&D, Cytogenetics, Molecular Genetics and Medical Genetics Unit, Toma Advanced Biomedical Assays S.p.A. (ImpactLab), 21052 Busto Arsizio, Italy
| | - Elena Repetti
- R&D, Cytogenetics, Molecular Genetics and Medical Genetics Unit, Toma Advanced Biomedical Assays S.p.A. (ImpactLab), 21052 Busto Arsizio, Italy
| | - Ornella Rodeschini
- IRCCS Istituto Auxologico Italiano, Medical Cytogenetics Laboratory, 20095 Cusano Milanino, Italy
| | - Chiara Valtorta
- IRCCS Istituto Auxologico Italiano, Medical Cytogenetics Laboratory, 20095 Cusano Milanino, Italy
| | - Ilaria Catusi
- IRCCS Istituto Auxologico Italiano, Medical Cytogenetics Laboratory, 20095 Cusano Milanino, Italy
| | - Lorenza Romitti
- Pathology and Cytogenetics Laboratory, Clinical Pathology Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20162 Milan, Italy
| | - Emanuela Martinoli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20122 Milan, Italy
| | - Donatella Conconi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Leda Dalprà
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; UC Medical Genetics, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Marialuisa Lavitrano
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Paola Riva
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20122 Milan, Italy
| | - Angela Bentivegna
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy.
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23
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Yu S, Cui X, Zhou S, Li Y, Feng W, Zhang X, Zhong Y, Zhang P. THOC7-AS1/OCT1/FSTL1 axis promotes EMT and serves as a therapeutic target in cutaneous squamous cell carcinoma. J Transl Med 2024; 22:347. [PMID: 38605354 PMCID: PMC11010364 DOI: 10.1186/s12967-024-05116-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/20/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND THOC7-AS1 and FSTL1 expression are frequently upregulated in cutaneous squamous cell carcinoma (cSCC). However, their molecular biological mechanisms remain elusive and their potential as therapeutic targets needs urgent exploration. METHODS Human tissue samples were used to evaluate clinical parameters. In vitro and in vivo experiments assessed biological functions. Quantitative PCR, western blot, immunohistochemistry, immunocytochemistry, immunoprecipitation, RNA fluorescence in situ hybridization, RNA pull-down, RNA immunoprecipitation, silver staining, chromatin immunoprecipitation, dual luciferase reporter assays etc. were utilized to explore the molecular biological mechanisms. RESULTS We found FSTL1 is an oncogene in cSCC, with high expression in tumor tissues and cells. Its elevated expression closely associates with tumor size and local tissue infiltration. In vitro and in vivo, high FSTL1 expression promotes cSCC proliferation, migration and invasion, facilitating malignant behaviors. Mechanistically, FSTL1 interacts with ZEB1 to promote epithelial-to-mesenchymal transition (EMT) in cSCC cells. Exploring upstream regulation, we found THOC7-AS1 can interact with OCT1, which binds the FSTL1 promoter region and promotes FSTL1 expression, facilitating cSCC progression. Finally, treating tumors with THOC7-AS1 antisense oligonucleotides inhibited cSCC proliferative and migratory abilities, delaying tumor progression. CONCLUSIONS The THOC7-AS1/OCT1/FSTL1 axis regulates EMT and promotes tumor progression in cSCC. This study provides clues and ideas for cSCC targeted therapy.
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Affiliation(s)
- Site Yu
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Xu Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Situo Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Yun Li
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Wenjie Feng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Xiangjun Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Yuhui Zhong
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, P.R. China.
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24
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Kalfusová R, Herklotz V, Kumke K, Houben A, Kovařík A, Ritz CM, Lunerová J. Epigenetic histone H3 phosphorylation marks discriminate between univalent- and bivalent-forming chromosomes during canina asymmetrical meiosis. Ann Bot 2024; 133:435-446. [PMID: 38127060 PMCID: PMC11006542 DOI: 10.1093/aob/mcad198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND AND AIMS Dogroses (Rosa sect. Caninae) are mostly pentaploid, bearing 2n = 5x = 35 chromosomes in somatic cells. They evolved a unique form of asymmetrical meiosis characterized by two types of chromosomes: (1) chromosomes forming bivalents and distributed in the normal sexual way; and (2) chromosomes occurring as univalents and transferred by a female gamete only. In the mature pollen of pentaploid species, seven bivalent-derived chromosomes are transmitted to offspring, and 21 unpaired univalent chromosomes are eliminated during microsporogenesis. To discriminate between bivalent- and univalent-forming chromosomes, we studied histone H3 phosphorylation patterns regulating meiotic chromosome condensation and segregation. METHODS We analysed histone modification patterns during male canina meiosis in two representative dogrose species, 5x Rosa canina and 5x Rosa rubiginosa, by immunohistochemical and molecular cytogenetics approaches. Immunostaining of meiotic cells included α-tubulin, histone H3 phosphorylation (H3S10p, H3S28p and H3T3p) and methylation (H3K4me3 and H3K27me3) marks. In addition, fluorescent in situ hybridization was carried out with an 18S rDNA probe. KEY RESULTS In the first meiotic division, univalent chromosomes underwent equational division into chromatids, while homologues in bivalents were segregated as regular dyads. In diakinesis, bivalent chromosomes displayed strong H3 phosphorylation signals in proximal regions, spreading to the rest of the chromosome. In contrast, in univalents, the H3 phosphorylation signals were weaker, occurring mostly outside proximal regions largely overlapping with the H3K4me3 signals. Reduced phosphorylation was associated with relative under-condensation of the univalent chromosomes, particularly at early diakinesis. CONCLUSIONS We hypothesize that the absence of pairing and/or recombination in univalent chromosomes negatively affects the histone H3 phosphorylation of their chromatin and perhaps the loading of meiotic-specific cohesins. This apparently destabilizes cohesion of sister chromatids, leading to their premature split in the first meiotic division.
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Affiliation(s)
- Radka Kalfusová
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 00 Brno, Czech Republic
| | - Veit Herklotz
- Senckenberg Museum of Natural History, Senckenberg – Member of the Leibniz Association, Am Museum 1, 02826 Görlitz, Germany
| | - Katrin Kumke
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, 06466 Stadt Seeland, Germany
| | - Andreas Houben
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, 06466 Stadt Seeland, Germany
| | - Aleš Kovařík
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 00 Brno, Czech Republic
| | - Christiane M Ritz
- Senckenberg Museum of Natural History, Senckenberg – Member of the Leibniz Association, Am Museum 1, 02826 Görlitz, Germany
- Chair of Biodiversity of Higher Plants, Technical University Dresden, D-01069, Dresden, Germany
| | - Jana Lunerová
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 00 Brno, Czech Republic
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25
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Wang K, Shen Z, Peng X, Wu X, Mao L. Circular RNA-GRIN2B Suppresses Neuropathic Pain by Targeting the NF-κB/SLICK Pathway. Neuromolecular Med 2024; 26:12. [PMID: 38600344 DOI: 10.1007/s12017-024-08774-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 02/21/2024] [Indexed: 04/12/2024]
Abstract
The role of circular RNAs (circRNAs) in neuropathic pain is linked to the fundamental physiological mechanisms involved. However, the exact function of circRNAs in the context of neuropathic pain is still not fully understood. The functional impact of circGRIN2B on the excitability of dorsal root ganglion (DRG) neurons was investigated using siRNA or overexpression technology in conjunction with fluorescence in situ hybridization and whole-cell patch-clamp technology. The therapeutic efficacy of circGRIN2B in treating neuropathic pain was confirmed by assessing the pain threshold in a chronic constrictive injury (CCI) model. The interaction between circGRIN2B and NF-κB was examined through RNA pulldown, RIP, and mass spectrometry assays. CircGRIN2B knockdown significantly affected the action potential discharge frequency and the sodium-dependent potassium current flux (SLICK) in DRG neurons. Furthermore, knockdown of circGRIN2B dramatically reduced the SLICK channel protein and mRNA expression in vivo and in vitro. Our research confirmed the interaction between circGRIN2B and NF-κB. These findings demonstrated that circGRIN2B promotes the transcription of the SLICK gene by binding to NF-κB. In CCI rat models, the overexpression of circGRIN2B has been shown to hinder the progression of neuropathic pain, particularly by reducing mechanical and thermal hyperalgesia. Additionally, this upregulation significantly diminished the levels of the inflammatory cytokines IL-1β, IL-6, and TNF-α in the DRG. Upon reviewing these findings, it was determined that circGRIN2B may mitigate the onset of neuropathic pain by modulating the NF-κB/SLICK pathway.
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Affiliation(s)
- Kun Wang
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
- Medical School of Southeast University, Nanjing, China
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
| | - Zicong Shen
- Medical School of Southeast University, Nanjing, China
| | - Xin Peng
- Medical School of Southeast University, Nanjing, China
| | - Xiaotao Wu
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China.
- Medical School of Southeast University, Nanjing, China.
| | - Lu Mao
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China.
- Medical School of Southeast University, Nanjing, China.
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Chen G, Zhang Q, Xia D. Abdominopelvic desmoplastic small round cell tumor with metastasis: A case report and literature review. Medicine (Baltimore) 2024; 103:e37664. [PMID: 38579065 PMCID: PMC10994471 DOI: 10.1097/md.0000000000037664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/29/2024] [Indexed: 04/07/2024] Open
Abstract
RATIONALE Desmoplastic small round cell tumor (DSRCT) is a rare and rapidly metastasizing soft tissue sarcoma, distinguished by its unique cell morphology and pleomorphic differentiation. PATIENT CONCERNS This report describes the case of an 18-year-old male diagnosed with abdominopelvic DSRCT exhibiting metastases to the peritoneum, liver, pleura, bone, and muscle. The patient primarily presented with symptoms of incomplete intestinal obstruction and an abdominal mass. DIAGNOSES Colonoscopy revealed lumen stenosis caused by external compression mass. Contrast-enhanced computed tomography and 18F-fluorodeoxyglucose positron emission tomography/computed tomography revealed multiple lesions in the abdominopelvic cavity. A needle biopsy of an abdominal wall lesion established it as a malignant tumor, origin unknown. Immunohistochemical staining post-surgery showed positive results for Cytokeratin (CK), CK7, Desmin, Vimentin, Caudal type homeobox 2 (CDX2), and Ki-67. Fluorescence in situ hybridization analysis revealed an Ewing sarcoma breakpoint region 1/EWS RNA binding protein 1 (EWSR1) rearrangement, and next-generation sequencing identified an EWSR1-Wilms tumor protein 1 (WT1) gene fusion. INTERVENTIONS The patient underwent laparoscopic exploratory surgery, which encompassed biopsy, ascites drainage, adhesion lysis, reinforcement of weakened sections of the small intestinal walls, and repositioning of twisted intestines. Postoperatively, the treatment protocol included fasting, rehydration, gastrointestinal decompression, and parenteral nutrition. However, the patient did not received chemotherapy. OUTCOMES The patient declined further treatment and deceased in early November. LESSONS This case highlights the nonspecific nature of DSRCT symptoms. In clinical practice, it is crucial to meticulously evaluate unexplained intestinal obstruction in young patients, considering DSRCT as a differential diagnosis to avoid delays in diagnosis.
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Affiliation(s)
- Guoyong Chen
- Department of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan Province, China
| | - Qian Zhang
- Department of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan Province, China
| | - Dong Xia
- Gastrointestinal Group, Department of General Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
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Zhang J, Zhang R. Megalosplenia as an initial manifestation of multiple myeloma with a novel CYLD gene mutation: A case report and literature review. Medicine (Baltimore) 2024; 103:e37624. [PMID: 38579060 PMCID: PMC10994412 DOI: 10.1097/md.0000000000037624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/26/2024] [Indexed: 04/07/2024] Open
Abstract
INTRODUCTION Megalosplenia in newly diagnosed multiple myeloma (MM) is extremely rare, posing diagnostic and therapeutic challenges due to its unusual location and clinical manifestations and lack of optimal therapeutic strategies. CASE PRESENTATION A 65-year-old female who was previously healthy presented with a history of ecchymosis on her right leg accompanied by progressive fatigue for 2 weeks. She was admitted to our center in July 2019 due to thrombocytopenia. The patient presented with megalosplenia, anemia, monoclonal protein (λ-light chain type) in the serum and urine, and 45.6% malignant plasma cells in the bone marrow. Splenectomy was performed due to persistent splenomegaly after 3 cycles of the bortezomib plus dexamethasone regimen, and immunohistochemistry results indicated λ-plasmacytoma of the spleen. The same cytogenetic and molecular abnormalities, including t(14;16), 14q32 amplification, 16q32 amplification, 20q12 amplification, and a novel CYLD gene mutation, were identified using fluorescence in situ hybridization and next-generation sequencing in both bone marrow and spleen samples. Therefore, a diagnosis of MM (λ-light chain type, DS III, ISS III, R-ISS III, high-risk) with spleen infiltration was proposed. The patient did not achieve remission after induction treatment with bortezomib plus lenalidomide and dexamethasone or salvage therapy with daratumumab plus ixazomib and dexamethasone. However, she ultimately did achieve very good partial remission with a regimen of bendamustine plus lenalidomide and dexamethasone. Unfortunately, she died of pneumonia associated with chemotherapy. CONCLUSION To our knowledge, only 8 cases of spleen plasmacytoma at MM diagnosis have been described previously. Extramedullary myeloma patients with spleen involvement at diagnosis are younger and that the condition is usually accompanied by splenic rupture with aggressive clinical features and poor prognosis. Further studies are needed to explore pathogenesis and effective therapies to prolong the survival of such patients.
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Affiliation(s)
- Jinjing Zhang
- Department of Hematology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Rui Zhang
- Department of Hematology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
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Tauziède-Espariat A, Nicaise Y, Sievers P, Sahm F, von Deimling A, Guillemot D, Pierron G, Duchesne M, Edjlali M, Dangouloff-Ros V, Boddaert N, Roux A, Dezamis E, Hasty L, Lhermitte B, Hirsch E, Hirsch MPV, Ardellier FD, Karnoub MA, Csanyi M, Maurage CA, Mokhtari K, Bielle F, Rigau V, Roujeau T, Abad M, Klein S, Bernier M, Horodyckid C, Adam C, Brandal P, Niehusmann P, Vannod-Michel Q, Provost C, de Champfleur NM, Nichelli L, Métais A, Mariet C, Chrétien F, Blauwblomme T, Beccaria K, Pallud J, Puget S, Uro-Coste E, Varlet P. CNS tumors with PLAGL1-fusion: beyond ZFTA and YAP1 in the genetic spectrum of supratentorial ependymomas. Acta Neuropathol Commun 2024; 12:55. [PMID: 38581034 PMCID: PMC10998316 DOI: 10.1186/s40478-023-01695-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/22/2023] [Indexed: 04/07/2024] Open
Abstract
A novel methylation class, "neuroepithelial tumor, with PLAGL1 fusion" (NET-PLAGL1), has recently been described, based on epigenetic features, as a supratentorial pediatric brain tumor with recurrent histopathological features suggesting an ependymal differentiation. Because of the recent identification of this neoplastic entity, few histopathological, radiological and clinical data are available. Herein, we present a detailed series of nine cases of PLAGL1-fused supratentorial tumors, reclassified from a series of supratentorial ependymomas, non-ZFTA/non-YAP1 fusion-positive and subependymomas of the young. This study included extensive clinical, radiological, histopathological, ultrastructural, immunohistochemical, genetic and epigenetic (DNA methylation profiling) data for characterization. An important aim of this work was to evaluate the sensitivity and specificity of a novel fluorescent in situ hybridization (FISH) targeting the PLAGL1 gene. Using histopathology, immunohistochemistry and electron microscopy, we confirmed the ependymal differentiation of this new neoplastic entity. Indeed, the cases histopathologically presented as "mixed subependymomas-ependymomas" with well-circumscribed tumors exhibiting a diffuse immunoreactivity for GFAP, without expression of Olig2 or SOX10. Ultrastructurally, they also harbored features reminiscent of ependymal differentiation, such as cilia. Different gene partners were fused with PLAGL1: FOXO1, EWSR1 and for the first time MAML2. The PLAGL1 FISH presented a 100% sensitivity and specificity according to RNA sequencing and DNA methylation profiling results. This cohort of supratentorial PLAGL1-fused tumors highlights: 1/ the ependymal cell origin of this new neoplastic entity; 2/ benefit of looking for a PLAGL1 fusion in supratentorial cases of non-ZFTA/non-YAP1 ependymomas; and 3/ the usefulness of PLAGL1 FISH.
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Affiliation(s)
- Arnault Tauziède-Espariat
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France.
| | - Yvan Nicaise
- Department of Pathology, Toulouse University Hospital, Toulouse, France
- Cancer Research Center of Toulouse (CRCT), INSERM U1037, Toulouse, France
| | - Philipp Sievers
- Department of Neuropathology, Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center DKFZ, German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Felix Sahm
- Department of Neuropathology, Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center DKFZ, German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Andreas von Deimling
- Department of Neuropathology, Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center DKFZ, German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Delphine Guillemot
- Paris-Sciences-Lettres, Curie Institute Research Center, INSERMU830, Paris, France
- Laboratory of Somatic Genetics, Curie Institute Hospital, Paris, France
| | - Gaëlle Pierron
- Paris-Sciences-Lettres, Curie Institute Research Center, INSERMU830, Paris, France
- Laboratory of Somatic Genetics, Curie Institute Hospital, Paris, France
| | - Mathilde Duchesne
- Department of Pathology, Dupuytren University Hospital, Limoges, France
| | - Myriam Edjlali
- Radiology Department, AP-HP, Raymond Poincaré Hospital, 92380, Garches, France
| | - Volodia Dangouloff-Ros
- Pediatric Radiology Department, AP-HP, Hôpital Universitaire Necker-Enfants Malades, France, and Université de Paris, INSERM ERL UA10, INSERM U1163, Institut Imagine, F-75015, Paris, France
| | - Nathalie Boddaert
- Pediatric Radiology Department, AP-HP, Hôpital Universitaire Necker-Enfants Malades, France, and Université de Paris, INSERM ERL UA10, INSERM U1163, Institut Imagine, F-75015, Paris, France
| | - Alexandre Roux
- Department of Neurosurgery, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, Paris, France
| | - Edouard Dezamis
- Department of Neurosurgery, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, Paris, France
| | - Lauren Hasty
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France
| | - Benoît Lhermitte
- Department of Pathology, Strasbourg Hospital, Strasbourg, France
| | - Edouard Hirsch
- Department of Neurology, Strasbourg Hospital, Strasbourg, France
| | | | - François-Daniel Ardellier
- Radiology 2 Department, Strasbourg University Hospital, Hautepierre Hospital, Strasbourg, France
- Engineering Science, Computer Science and Imaging Laboratory (ICube), Integrative Multimodal Imaging in Healthcare, UMR 7357, University of Strasbourg-CNRS, Strasbourg, France
| | - Mélodie-Anne Karnoub
- Department of Pediatric Neurosurgery, Lille University Hospital, 59000, Lille, France
| | - Marie Csanyi
- Institute of Pathology, Centre de Biologie Pathologie, Lille University Hospital, 59000, Lille, France
| | - Claude-Alain Maurage
- Institute of Pathology, Centre de Biologie Pathologie, Lille University Hospital, 59000, Lille, France
| | - Karima Mokhtari
- Sorbonne Université, AP-HP, Institut du Cerveau - Paris Brain Institute - ICM, Inserm,, CNRS, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neuropathologie, 75013, Paris, France
| | - Franck Bielle
- Sorbonne Université, AP-HP, Institut du Cerveau - Paris Brain Institute - ICM, Inserm,, CNRS, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neuropathologie, 75013, Paris, France
| | - Valérie Rigau
- Department of Pathology, Gui de Chauliac Hospital, 34295, Montpellier, France
| | - Thomas Roujeau
- Department of Neurosurgery, Gui de Chauliac Hospital, 34295, Montpellier, France
| | - Marine Abad
- Department of Pathology, Jean Minjoz Hospital, Besançon, France
| | - Sébastien Klein
- Department of Pediatric Oncology, Jean Minjoz Hospital, Besançon, France
| | | | | | - Clovis Adam
- Department of Pathology, Bicêtre Hospital, 94275, Le Kremlin-Bicêtre, France
| | - Petter Brandal
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway
- Department of Oncology, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway
| | - Pitt Niehusmann
- Devision of Cancer Medicine, Oslo University Hospital, Oslo, Norway
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | | | - Corentin Provost
- Department of Radiology, GHU-Paris-Psychiatrie Et Neurosciences, Hôpital Sainte Anne, 75014, Paris, France
| | | | - Lucia Nichelli
- Department of Neuroradiology, Sorbonne Université, AP-HP, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, 75013, Paris, France
| | - Alice Métais
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France
- Institute of Psychiatry and Neuroscience of Paris (IPNP), Université Paris Cité, INSERM U1266, Imabrain Team, 75014, Paris, France
| | - Cassandra Mariet
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France
| | - Fabrice Chrétien
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France
- Institute of Psychiatry and Neuroscience of Paris (IPNP), Université Paris Cité, INSERM U1266, Imabrain Team, 75014, Paris, France
| | - Thomas Blauwblomme
- Department of Pediatric Neurosurgery, Necker Hospital, APHP, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Kévin Beccaria
- Department of Pediatric Neurosurgery, Necker Hospital, APHP, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Johan Pallud
- Department of Neurosurgery, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, Paris, France
- Institute of Psychiatry and Neuroscience of Paris (IPNP), Université Paris Cité, INSERM U1266, Imabrain Team, 75014, Paris, France
| | - Stéphanie Puget
- Department of Neurosurgery, La Martinique Hospital, Fort-de-France, France
| | - Emmanuelle Uro-Coste
- Department of Pathology, Toulouse University Hospital, Toulouse, France
- Cancer Research Center of Toulouse (CRCT), INSERM U1037, Toulouse, France
- Université Paul Sabatier, Toulouse III, Toulouse, France
| | - Pascale Varlet
- Department of Neuropathology, GHU Paris-Psychiatrie Et Neurosciences, Sainte-Anne Hospital, 1, Rue Cabanis, 75014, Paris, France
- Institute of Psychiatry and Neuroscience of Paris (IPNP), Université Paris Cité, INSERM U1266, Imabrain Team, 75014, Paris, France
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29
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Bastian L, Beder T, Barz MJ, Bendig S, Bartsch L, Walter W, Wolgast N, Brändl B, Rohrandt C, Hansen BT, Hartmann AM, Iben K, Das Gupta D, Denker M, Zimmermann J, Wittig M, Chitadze G, Neumann M, Schneller F, Fiedler W, Steffen B, Stelljes M, Faul C, Schwartz S, Müller FJ, Cario G, Harder L, Haferlach C, Pfeifer H, Gökbuget N, Brüggemann M, Baldus CD. Developmental trajectories and cooperating genomic events define molecular subtypes of BCR::ABL1-positive ALL. Blood 2024; 143:1391-1398. [PMID: 38153913 DOI: 10.1182/blood.2023021752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/30/2023] Open
Abstract
ABSTRACT Distinct diagnostic entities within BCR::ABL1-positive acute lymphoblastic leukemia (ALL) are currently defined by the International Consensus Classification of myeloid neoplasms and acute leukemias (ICC): "lymphoid only", with BCR::ABL1 observed exclusively in lymphatic precursors, vs "multilineage", where BCR::ABL1 is also present in other hematopoietic lineages. Here, we analyzed transcriptomes of 327 BCR::ABL1-positive patients with ALL (age, 2-84 years; median, 46 years) and identified 2 main gene expression clusters reproducible across 4 independent patient cohorts. Fluorescence in situ hybridization analysis of fluorescence-activated cell-sorted hematopoietic compartments showed distinct BCR::ABL1 involvement in myeloid cells for these clusters (n = 18/18 vs n = 3/16 patients; P < .001), indicating that a multilineage or lymphoid BCR::ABL1 subtype can be inferred from gene expression. Further subclusters grouped samples according to cooperating genomic events (multilineage: HBS1L deletion or monosomy 7; lymphoid: IKZF1-/- or CDKN2A/PAX5 deletions/hyperdiploidy). A novel HSB1L transcript was highly specific for BCR::ABL1 multilineage cases independent of HBS1L genomic aberrations. Treatment on current German Multicenter Study Group for Adult ALL (GMALL) protocols resulted in comparable disease-free survival (DFS) for multilineage vs lymphoid cluster patients (3-year DFS: 70% vs 61%; P = .530; n = 91). However, the IKZF1-/- enriched lymphoid subcluster was associated with inferior DFS, whereas hyperdiploid cases showed a superior outcome. Thus, gene expression clusters define underlying developmental trajectories and distinct patterns of cooperating events in BCR::ABL1-positive ALL with prognostic relevance.
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Affiliation(s)
- Lorenz Bastian
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Thomas Beder
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Malwine J Barz
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Sonja Bendig
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Lorenz Bartsch
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | | | - Nadine Wolgast
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Björn Brändl
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Department of Psychiatry and Psychotherapy, University Hospital Schleswig Holstein, Kiel, Germany
| | - Christian Rohrandt
- Department of Psychiatry and Psychotherapy, University Hospital Schleswig Holstein, Kiel, Germany
| | - Björn-Thore Hansen
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Alina M Hartmann
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Katharina Iben
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Dennis Das Gupta
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Miriam Denker
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Johannes Zimmermann
- Department of Evolutionary Ecology and Genetics, Zoological Institute, Christian Albrechts University, Kiel, Germany
| | - Michael Wittig
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - Guranda Chitadze
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Martin Neumann
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Folker Schneller
- Medical Clinic and Polyclinic of Klinikum rechts der Isar of Technical University Munich, Munich, Germany
| | - Walter Fiedler
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald University Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Björn Steffen
- Department of Medicine II, Hematology/Oncology, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Matthias Stelljes
- Department of Medicine A-Hematology, Hemostaseology, Oncology, Pulmonology, University Hospital Muenster, Munster, Germany
| | - Christoph Faul
- Department of Internal Medicine II, Hematology, Oncology, Clinical Immunology, and Rheumatology, University Hospital Tübingen, Tübingen, Germany
| | - Stefan Schwartz
- Department of Hematology, Oncology and Tumor Immunology (Campus Benjamin Franklin), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Research Center and German Cancer Consortium, Heidelberg, Germany
| | - Franz-Josef Müller
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Department of Psychiatry and Psychotherapy, University Hospital Schleswig Holstein, Kiel, Germany
| | - Gunnar Cario
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
- Department of Pediatrics, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Lana Harder
- Institut für Tumorgenetik Nord, Kiel, Germany
| | | | - Heike Pfeifer
- Department of Medicine II, Hematology/Oncology, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Nicola Gökbuget
- Department of Medicine II, Hematology/Oncology, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Monika Brüggemann
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
| | - Claudia D Baldus
- Medical Department II, Hematology and Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
- Clinical Research Unit "CATCH ALL" (KFO 5010/1), Kiel, Germany
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He Y, Zhang L, Huang S, Tang Y, Li Y, Li H, Chen G, Chen X, Zhang X, Zhao W, Deng F, Yu D. Magnetic Graphene Oxide Nanocomposites Boosts Craniomaxillofacial Bone Regeneration by Modulating circAars/miR-128-3p/SMAD5 Signaling Axis. Int J Nanomedicine 2024; 19:3143-3166. [PMID: 38585472 PMCID: PMC10999216 DOI: 10.2147/ijn.s454718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Background The ability of nanomaterials to induce osteogenic differentiation is limited, which seriously imped the repair of craniomaxillofacial bone defect. Magnetic graphene oxide (MGO) nanocomposites with the excellent physicochemical properties have great potential in bone tissue engineering. In this study, we aim to explore the craniomaxillofacial bone defect repairment effect of MGO nanocomposites and its underlying mechanism. Methods The biocompatibility of MGO nanocomposites was verified by CCK8, live/dead staining and cytoskeleton staining. The function of MGO nanocomposites induced osteogenic differentiation of BMSCs was investigated by ALP activity detection, mineralized nodules staining, detection of osteogenic genes and proteins, and immune-histochemical staining. BMSCs with or without MGO osteogenic differentiation induction were collected and subjected to high-throughput circular ribonucleic acids (circRNAs) sequencing, and then crucial circRNA circAars was screened and identified. Bioinformatics analysis, Dual-luciferase reporter assay, RNA binding protein immunoprecipitation (RIP), fluorescence in situ hybridization (FISH) and osteogenic-related examinations were used to further explore the ability of circAars to participate in MGO nanocomposites regulation of osteogenic differentiation of BMSCs and its potential mechanism. Furthermore, critical-sized calvarial defects were constructed and were performed to verify the osteogenic differentiation induction effects and its potential mechanism induced by MGO nanocomposites. Results We verify the good biocompatibility and osteogenic differentiation improvement effects of BMSCs mediated by MGO nanocomposites. Furthermore, a new circRNA-circAars, we find and identify, is obviously upregulated in BMSCs mediated by MGO nanocomposites. Silencing circAars could significantly decrease the osteogenic ability of MGO nanocomposites. The underlying mechanism involved circAars sponging miR-128-3p to regulate the expression of SMAD5, which played an important role in the repair craniomaxillofacial bone defects mediated by MGO nanocomposites. Conclusion We found that MGO nanocomposites regulated osteogenic differentiation of BMSCs via the circAars/miR-128-3p/SMAD5 pathway, which provided a feasible and effective strategy for the treatment of craniomaxillofacial bone defects.
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Affiliation(s)
- Yi He
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Lejia Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Siyuan Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Yuquan Tang
- Zhujiang Hospital, Southern Medical University, Guangzhou, 510080, People’s Republic of China
| | - Yiming Li
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Hongyu Li
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Guanhui Chen
- Department of Stomatology, the Seventh Affiliated Hospital, Sun Yat-sen University, ShenZhen, 518107, People’s Republic of China
| | - Xun Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Xiliu Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Wei Zhao
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
| | - Dongsheng Yu
- Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, GuangZhou, 510080, People’s Republic of China
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Wu L, Li G, Li D, Dong C, Zhang X, Zhang L, Yang Z, Kong X, Xia C, Chen J, Liu X. Identification and functional analysis of a chromosome 2D fragment harboring TaFPF1 gene with the potential for yield improvement using a late heading wheat mutant. Theor Appl Genet 2024; 137:92. [PMID: 38568320 DOI: 10.1007/s00122-024-04593-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/05/2024] [Indexed: 04/05/2024]
Abstract
KEY MESSAGE A chromosome fragment influencing wheat heading and grain size was identified using mapping of m406 mutant. The study of TaFPF1 in this fragment provides more insights into wheat yield improvement. In recent years, wheat production has faced formidable challenges driven by rapid population growth and climate change, emphasizing the importance of improving specific agronomic traits such as heading date, spike length, and grain size. To identify potential genes for improving these traits, we screened a wheat EMS mutant library and identified a mutant, designated m406, which exhibited a significantly delayed heading date compared to the wild-type. Intriguingly, the mutant also displayed significantly longer spike and larger grain size. Genetic analysis revealed that a single recessive gene was responsible for the delayed heading. Surprisingly, a large 46.58 Mb deletion at the terminal region of chromosome arm 2DS in the mutant was identified through fine mapping and fluorescence in situ hybridization. Thus, the phenotypes of the mutant m406 are controlled by a group of linked genes. This deletion encompassed 917 annotated high-confidence genes, including the previously studied wheat genes Ppd1 and TaDA1, which could affect heading date and grain size. Multiple genes in this region probably contribute to the phenotypes of m406. We further investigated the function of TaFPF1 using gene editing. TaFPF1 knockout mutants showed delayed heading and increased grain size. Moreover, we identified the direct upstream gene of TaFPF1 and investigated its relationship with other important flowering genes. Our study not only identified more genes affecting heading and grain development within this deleted region but also highlighted the potential of combining these genes for improvement of wheat traits.
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Affiliation(s)
- Lifen Wu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-Center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Guangrong Li
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, Sichuan, China
| | - Danping Li
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chunhao Dong
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xueying Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lichao Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zujun Yang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, Sichuan, China
| | - Xiuying Kong
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chuan Xia
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Jingtang Chen
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-Center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China.
| | - Xu Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-Center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China.
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Wang J, Yang N, Li W, Zhang H, Li J. Role of Hsa_circ_0000880 in the Regulation of High Glucose-Induced Apoptosis of Retinal Microvascular Endothelial Cells. Transl Vis Sci Technol 2024; 13:12. [PMID: 38587436 PMCID: PMC11005064 DOI: 10.1167/tvst.13.4.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/12/2024] [Indexed: 04/09/2024] Open
Abstract
Purpose Circular RNAs (circRNAs) have been verified to participate in multiple biological processes and disease progression. Yet, the role of circRNAs in the pathogenesis of diabetic retinopathy (DR) is still poorly understood and deserves further study. This study aimed to investigate the role of circRNAs in the regulation of high glucose (HG)-induced apoptosis of retinal microvascular endothelial cells (RMECs). Methods Epiretinal membranes from patients with DR and nondiabetic patients with idiopathic macular epiretinal membrane were collected for this study. The circRNA microarrays were performed using high-throughput sequencing. Hierarchical clustering, functional enrichment, and network regulation analyses were used to analyze the data generated by high-throughput sequencing. Next, RMECs were subjected to HG (25 mM) conditions to induce RMECs apoptosis in vitro. A series of experiments, such as Transwell, the Scratch wound, and tube formation, were conducted to explore the regulatory effect of circRNA on RMECs. Fluorescence in situ hybridization (FISH), immunofluorescence staining, and Western blot were used to study the mechanism underlying circRNA-mediated regulation. Results A total of 53 differentially expressed circRNAs were found in patients with DR. Among these, hsa_circ_0000880 was significantly upregulated in both the diabetic epiretinal membranes and in an in vitro DR model of HG-treated RMECs. Hsa_circ_0000880 knockout facilitated RMECs vitality and decreased the paracellular permeability of RMECs under hyperglycemia. More importantly, silencing of hsa_circ_0000880 significantly inhibited HG-induced ROS production and RMECs apoptosis. Hsa_circ_0000880 acted as an endogenous sponge for eukaryotic initiation factor 4A-III (EIF4A3). Knockout of hsa_circ_0000880 reversed HG-induced decrease in EIF4A3 protein level. Conclusions Our findings suggest that hsa_circ_0000880 is a novel circRNA can induce RMECs apoptosis in response to HG conditions by sponging EIF4A3, offering an innovative treatment approach against DR. Translational Relevance The circRNAs participate in the dysregulation of microvascular endothelial function induced by HG conditions, indicating a promising therapeutic target for DR.
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Affiliation(s)
- Jiawei Wang
- Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nannan Yang
- Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Ophthalmology, The People's Hospital of Laoling City, Dezhou, Shandong, China
| | - Wanna Li
- Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Han Zhang
- Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jianqiao Li
- Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Sangha JS, Barrett P, Curtis TP, Métris A, Jakubovics NS, Ofiteru ID. Effects of glucose and lactate on Streptococcus mutans abundance in a novel multispecies oral biofilm model. Microbiol Spectr 2024; 12:e0371323. [PMID: 38376204 DOI: 10.1128/spectrum.03713-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/16/2024] [Indexed: 02/21/2024] Open
Abstract
The oral microbiome plays an important role in protecting oral health. Here, we established a controlled mixed-species in vitro biofilm model and used it to assess the impact of glucose and lactate on the ability of Streptococcus mutans, an acidogenic and aciduric species, to compete with commensal oral bacteria. A chemically defined medium was developed that supported the growth of S. mutans and four common early colonizers of dental plaque: Streptococcus gordonii, Actinomyces oris, Neisseria subflava, and Veillonella parvula. Biofilms containing the early colonizers were developed in a continuous flow bioreactor, exposed to S. mutans, and incubated for up to 7 days. The abundance of bacteria was estimated by quantitative polymerase chain reaction (qPCR). At high glucose and high lactate, the pH in bulk fluid rapidly decreased to approximately 5.2, and S. mutans outgrew other species in biofilms. In low glucose and high lactate, the pH remained above 5.5, and V. parvula was the most abundant species in biofilms. By contrast, in low glucose and low lactate, the pH remained above 6.0 throughout the experiment, and the microbial community in biofilms was relatively balanced. Fluorescence in situ hybridization confirmed that all species were present in the biofilm and the majority of cells were viable using live/dead staining. These data demonstrate that carbon source concentration is critical for microbial homeostasis in model oral biofilms. Furthermore, we established an experimental system that can support the development of computational models to predict transitions to microbial dysbiosis based on metabolic interactions.IMPORTANCEWe developed a controlled (by removing host factor) dynamic system metabolically representative of early colonization of Streptococcus mutans not measurable in vivo. Hypotheses on factors influencing S. mutans colonization, such as community composition and inoculation sequence and the effect of metabolite concentrations, can be tested and used to predict the effect of interventions such as dietary modifications or the use of toothpaste or mouthwash on S. mutans colonization. The defined in vitro model (species and medium) can be simulated in an in silico model to explore more of the parameter space.
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Affiliation(s)
- Jay S Sangha
- School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Paul Barrett
- Safety and Environmental Assurance Centre, Unilever, Colworth Science Park, Sharnbrook, United Kingdom
| | - Thomas P Curtis
- School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Aline Métris
- Safety and Environmental Assurance Centre, Unilever, Colworth Science Park, Sharnbrook, United Kingdom
| | - Nicholas S Jakubovics
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Irina D Ofiteru
- School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom
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Levy B, Kanagal-Shamanna R, Sahajpal NS, Neveling K, Rack K, Dewaele B, Olde Weghuis D, Stevens-Kroef M, Puiggros A, Mallo M, Clifford B, Mantere T, Hoischen A, Espinet B, Kolhe R, Solé F, Raca G, Smith AC. A framework for the clinical implementation of optical genome mapping in hematologic malignancies. Am J Hematol 2024; 99:642-661. [PMID: 38164980 DOI: 10.1002/ajh.27175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/09/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024]
Abstract
Optical Genome Mapping (OGM) is rapidly emerging as an exciting cytogenomic technology both for research and clinical purposes. In the last 2 years alone, multiple studies have demonstrated that OGM not only matches the diagnostic scope of conventional standard of care cytogenomic clinical testing but it also adds significant new information in certain cases. Since OGM consolidates the diagnostic benefits of multiple costly and laborious tests (e.g., karyotyping, fluorescence in situ hybridization, and chromosomal microarrays) in a single cost-effective assay, many clinical laboratories have started to consider utilizing OGM. In 2021, an international working group of early adopters of OGM who are experienced with routine clinical cytogenomic testing in patients with hematological neoplasms formed a consortium (International Consortium for OGM in Hematologic Malignancies, henceforth "the Consortium") to create a consensus framework for implementation of OGM in a clinical setting. The focus of the Consortium is to provide guidance for laboratories implementing OGM in three specific areas: validation, quality control and analysis and interpretation of variants. Since OGM is a complex technology with many variables, we felt that by consolidating our collective experience, we could provide a practical and useful tool for uniform implementation of OGM in hematologic malignancies with the ultimate goal of achieving globally accepted standards.
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Affiliation(s)
- Brynn Levy
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Rashmi Kanagal-Shamanna
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Kornelia Neveling
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Katrina Rack
- Laboratory for the Cytogenetic and Molecular Diagnosis of Haematological Malignancies, Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Barbara Dewaele
- Laboratory for the Cytogenetic and Molecular Diagnosis of Haematological Malignancies, Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Daniel Olde Weghuis
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marian Stevens-Kroef
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Anna Puiggros
- Molecular Cytogenetics Laboratory, Pathology Department, Hospital del Mar, Barcelona, Spain
- Translational Research on Hematological Neoplasms Group, Cancer Research Program, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Mar Mallo
- MDS Research Group, Microarrays Unit, Institut de Recerca Contra la Leucèmia Josep Carreras (IJC), ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
| | | | - Tuomo Mantere
- Laboratory of Cancer Genetics and Tumor Biology, Translational Medicine Research Unit and Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Alexander Hoischen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
- Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud Expertise Center for Immunodeficiency and Autoinflammation and Radboud Center for Infectious Disease (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Blanca Espinet
- Molecular Cytogenetics Laboratory, Pathology Department, Hospital del Mar, Barcelona, Spain
- Translational Research on Hematological Neoplasms Group, Cancer Research Program, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Ravindra Kolhe
- Department of Pathology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Francesc Solé
- MDS Research Group, Microarrays Unit, Institut de Recerca Contra la Leucèmia Josep Carreras (IJC), ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Gordana Raca
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Adam C Smith
- Laboratory Medicine Program, University Health Network, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Esmaeilivand M, Ghasemzadeh A, Niknafs B, Fattahi A. Association of Trophectoderm mRNAs and MicroRNAs with Chromosomal Aneuploidy of Embryo. Reprod Sci 2024; 31:1028-1033. [PMID: 37964074 DOI: 10.1007/s43032-023-01381-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/12/2023] [Indexed: 11/16/2023]
Abstract
MicroRNAs (miRNAs) and mRNAs can serve as indicators of the chromosomal state of an embryo, with different profiles observed in euploid and aneuploid blastocysts. Examining the levels of miRNAs associated with aneuploidy and euploidy, as well as mRNAs related to implantation, can aid in predicting blastocyst chromosomal normality and improving assisted reproductive technology (ART) outcomes. This study analyzed chromosomal abnormality of 25 blastocysts using fluorescence in situ hybridization (FISH) and also the expression of genes ERBB4, SELL, ITGB3, and ITGAV, as well as miRNAs, miR-339, miR-27b, miR-661, miR-30c, miR-191, miR-345, miR-142, miR-141, miR-20a, and miR-372. We found that 17 out of 25 embryos were aneuploid. Moreover, results revealed lower expression levels of miR-30c and miR-372 in aneuploid embryos compared to euploid ones, while ITGAV and ITGB3 showed significantly higher expression in aneuploid embryos. These findings suggest that miR-372, miR-30c, ITGAV, and ITGB3 expression in trophectoderm cells can serve as biomarkers for assessing embryo health.
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Affiliation(s)
- Masoumeh Esmaeilivand
- Department of Obstetrics and Gynecology, School of Medicine, Kermanshah University of Medical Science, Kermanshah, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aliyeh Ghasemzadeh
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behrooz Niknafs
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Science, Tabriz, Iran.
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Amir Fattahi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Zhou C, Balmer L, Song M, Wu K, Wang W, Wang H. CircPVT1 promotes migration and invasion by regulating miR-490-5p/HAVCR2 axis in osteosarcoma cells. J Cell Mol Med 2024; 28:e18269. [PMID: 38568056 PMCID: PMC10989635 DOI: 10.1111/jcmm.18269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 04/05/2024] Open
Abstract
Circular RNAs (circRNAs) play an important role in the progression of osteosarcoma. However, the precise function of circPVT1 in osteosarcoma remains elusive. This study aims to explore the molecular mechanism underlying the involvement of circPVT1 in osteosarcoma cells. We quantified circPVT1 expression using qRT-PCR in both control and osteosarcoma cell lines. To investigate the roles of circPVT1, miR-490-5p and HAVCR2 in vitro, we separately conducted overexpression and inhibition experiments for circPVT1, miR-490-5p and HAVCR2 in HOS and U2OS cells. Cell migration was assessed through wound healing and transwell migration assays, and invasion was measured via the Matrigel invasion assay. To elucidate the regulatory mechanism of circPVT1 in osteosarcoma, a comprehensive approach was employed, including fluorescence in situ hybridization, qRT-PCR, Western blot, bioinformatics, dual-luciferase reporter assay and rescue assay. CircPVT1 expression in osteosarcoma cell lines surpassed that in control cells. The depletion of circPVT1 resulted in a notable reduction in the in vitro migration and invasion of osteosarcoma cells. Mechanism experiments revealed that circPVT1 functioned as a miR-490-5p sequester, and directly targeted HAVCR2. Overexpression of miR-490-5p led to a significant attenuation of migration and invasion of osteosarcoma cells, whereas HAVCR2 overexpression had the opposite effect, promoting these abilities. Additionally, circPVT1 upregulated HAVCR2 expression via sequestering miR-490-5p, thereby orchestrating the migration and invasion in osteosarcoma cells. CircPVT1 orchestrates osteosarcoma migration and invasion by regulating the miR-490-5p/HAVCR2 axis, underscoring its potential as a promising therapeutic target for osteosarcoma.
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Affiliation(s)
- Chunbin Zhou
- Department of OrthopaedicsFirst Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Center for Precision Health, School of Medical and Health ScienceEdith Cowan UniversityPerthWestern AustraliaAustralia
| | - Lois Balmer
- Center for Precision Health, School of Medical and Health ScienceEdith Cowan UniversityPerthWestern AustraliaAustralia
| | - Manshu Song
- Center for Precision Health, School of Medical and Health ScienceEdith Cowan UniversityPerthWestern AustraliaAustralia
| | - Kezhou Wu
- Department of OrthopaedicsFirst Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Wei Wang
- Center for Precision Health, School of Medical and Health ScienceEdith Cowan UniversityPerthWestern AustraliaAustralia
- First Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Hu Wang
- Department of OrthopaedicsFirst Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Minimally Invasive Spine CenterFirst Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
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Donze SH, Srebniak MI, Diderich KEM, van den Born M, Galjaard RJ, Govaerts LCP, van der Schoot V, Knapen MFCM, Joosten M, Van Opstal D. Limited additional value of karyotyping cultured amniotic fluid cell colonies in addition to microarray on uncultured cells for confirmation of abnormal non-invasive prenatal testing results. Prenat Diagn 2024; 44:401-408. [PMID: 38141050 DOI: 10.1002/pd.6499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/18/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVES Non-invasive prenatal testing (NIPT) allows the detection of placental chromosome aberrations. To verify whether the fetus also has the chromosome aberration, diagnostic follow-up testing is required. The aim of this retrospective study was to assess the added value of analyzing amniotic fluid (AF) cell cultures in addition to uncultured AF cells for the detection of fetal mosaicism. METHOD NIPT was performed as part of the Dutch TRIDENT study. Cytogenetic studies in uncultured AF were performed using single nucleotide polymorphism (SNP)-array. Cultured AF cell colonies (in situ method) were investigated with fluorescent in situ hybridization and/or karyotyping. Clinical outcome data were collected in cases with discordant results. RESULTS Between April 2014 and December 2021, 368 amniocenteses were performed after a chromosomal aberration was detected with NIPT. Excluding 134 cases of common aneuploidies (confirmed by quantitative fluorescence polymerase chain reaction), 29 cases with investigation of uncultured cells only and 1 case without informed consent, 204 cases were eligible for this study. In 196 (96%) cases, the results in uncultured and cultured cells were concordant normal, abnormal or mosaic. Five cases (2%) showed mosaicism in cultured AF cells, whereas uncultured AF cells were normal. Two (1%) of these, one mosaic trisomy 13 and one mosaic trisomy 16, were considered true fetal mosaics. CONCLUSION The added value of investigating AF cell cultures in addition to uncultured cells is limited to two of 204 (1%) cases in which true fetal mosaicsm would otherwise be missed. The clinical relevance of one (trisomy 13) remained unknown and the other case also showed ultrasound anomalies, which determined pregnancy management. This seems to justify limiting prenatal cytogenetic confirmatory testing to SNP arrays on uncultured AF cells, considerably shortening the reporting time.
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Affiliation(s)
- Stephany H Donze
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Malgorzata I Srebniak
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Karin E M Diderich
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Myrthe van den Born
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Robert-Jan Galjaard
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Lutgarde C P Govaerts
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Vyne van der Schoot
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Maarten F C M Knapen
- Department of Obstetrics and Prenatal Medicine, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Marieke Joosten
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
| | - Diane Van Opstal
- Department of Clinical Genetics, ErasmusMC, University Medical Center, Rotterdam, The Netherlands
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Kendlbacher V, Winter TMR, Bright M. Zoothamnium mariella sp. nov., a marine, colonial ciliate with an atypcial growth pattern, and its ectosymbiont Candidatus Fusimicrobium zoothamnicola gen. nov., sp. nov. PLoS One 2024; 19:e0300758. [PMID: 38557976 PMCID: PMC10984469 DOI: 10.1371/journal.pone.0300758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
Ciliates are unicellular eukaryotes, regularly involved in symbiotic associations. Symbionts may colonize the inside of their cells as well as their surface as ectosymbionts. Here, we report on a new ciliate species, designated as Zoothamnium mariella sp. nov. (Peritrichia, Sessilida), discovered in the northern Adriatic Sea (Mediterranean Sea) in 2021. We found this ciliate species to be monospecifically associated with a new genus of ectosymbiotic bacteria, here proposed as Candidatus Fusimicrobium zoothamnicola gen. nov., sp. nov. To formally describe the new ciliate species, we investigated its morphology and sequenced its 18S rRNA gene. To demonstrate its association with a single species of bacterial ectosymbiont, we performed 16S rRNA gene sequencing, fluorescence in situ hybridization, and scanning electron microscopy. Additionally, we explored the two partners' cultivation requirements and ecology. Z. mariella sp. nov. was characterized by a colony length of up to 1 mm. A consistent number of either seven or eight long branches alternated on the stalk in close distance to each other. The colony developed three different types of zooids: microzooids ("trophic stage"), macrozooids ("telotroch stage"), and terminal zooids ("dividing stage"). Viewed from inside the cell, the microzooids' oral ciliature ran in 1 ¼ turns in a clockwise direction around the peristomial disc before entering the infundibulum, where it performed another ¾ turn. Phylogenetic analyses assigned Z. mariella sp. nov. to clade II of the family Zoothamnidae. The ectosymbiont formed a monophyletic clade within the Gammaproteobacteria along with two other ectosymbionts of peritrichous ciliates and a free-living vent bacterium. It colonized the entire surface of its ciliate host, except for the most basal stalk of large colonies, and exhibited a single, spindle-shaped morphotype. Furthermore, the two partners together appear to be generalists of temperate, oxic, marine shallow-water environments and were collectively cultivable in steady flow-through systems.
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Affiliation(s)
- Vincent Kendlbacher
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
| | | | - Monika Bright
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
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Al Assaad M, Michaud O, Semaan A, Sigouros M, Tranquille M, Phan A, Levine MF, Gundem G, Medina-Martínez JS, Papaemmanuil E, Manohar J, Wilkes D, Sboner A, Hoda SAF, Elemento O, Mosquera JM. Whole-Genome Sequencing Analysis of Male Breast Cancer Unveils Novel Structural Events and Potential Therapeutic Targets. Mod Pathol 2024; 37:100452. [PMID: 38369186 DOI: 10.1016/j.modpat.2024.100452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/17/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
The molecular characterization of male breast cancer (MaBC) has received limited attention in research, mostly because of its low incidence rate, accounting for only 0.5% to 1% of all reported cases of breast cancer each year. Managing MaBC presents significant challenges, with most treatment protocols being adapted from those developed for female breast cancer. Utilizing whole-genome sequencing (WGS) and state-of-the-art analyses, the genomic features of 10 MaBC cases (n = 10) were delineated and correlated with clinical and histopathologic characteristics. Using fluorescence in situ hybridization, an additional cohort of 18 patients was interrogated to supplement WGS findings. The genomic landscape of MaBC uncovered significant genetic alterations that could influence diagnosis and treatment. We found common somatic mutations in key driver genes, such as FAT1, GATA3, SMARCA4, and ARID2. Our study also mapped out structural variants that impact cancer-associated genes, such as ARID1A, ESR1, GATA3, NTRK1, and NF1. Using a WGS-based classifier, homologous recombination deficiency (HRD) was identified in 2 cases, both presenting with deleterious variants in BRCA2. Noteworthy was the observation of FGFR1 amplification in 21% of cases. Altogether, we identified at least 1 potential therapeutic target in 8 of the 10 cases, including high tumor mutational burden, FGFR1 amplification, and HRD. Our study is the first WGS characterization of MaBC, which uncovered potentially relevant variants, including structural events in cancer genes, HRD signatures, and germline pathogenic mutations. Our results demonstrate unique genetic markers and potential treatment targets in MaBC, thereby underlining the necessity of tailoring treatment strategies for this understudied patient population. These WGS-based findings add to the growing knowledge of MaBC genomics and highlight the need to expand research on this type of cancer.
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Affiliation(s)
- Majd Al Assaad
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York; Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Olivier Michaud
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York; Département de Pathologie, Université Laval, Quebec City, Quebec, Canada
| | - Alissa Semaan
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Michael Sigouros
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Marvel Tranquille
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Andy Phan
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York
| | | | | | | | | | - Jyothi Manohar
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - David Wilkes
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Andrea Sboner
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York; Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Syed A F Hoda
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York
| | - Olivier Elemento
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York; Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York; Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York
| | - Juan Miguel Mosquera
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York; Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York; New York Genome Center, New York, New York.
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Chen Y, Pan M, Chen L, Peng M, Liu Z, Fang Y, Du Y, Yang Y, Xu P. Identification of a novel fusion gene, RARA::ANKRD34C, in acute promyelocytic leukemia. Ann Hematol 2024; 103:1181-1185. [PMID: 38294534 DOI: 10.1007/s00277-024-05629-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/15/2024] [Indexed: 02/01/2024]
Abstract
Acute promyelocytic leukemia (APL) is a specific subtype of acute myeloid leukemia that is distinguished by the chromosomal translocation t(15;17)(q24;q21), which leads to the fusion of the promyelocytic leukemia (PML) gene with the retinoic acid receptor alpha (RARA). Recently, we identified a novel fusion gene in APL, RARA::ankyrin repeat domain 34C (ANKRD34C), identified its functions by morphological, cytogenetic, molecular biological and multiplex fluorescence in situ hybridization analyses, and demonstrated the potential therapeutic effect clinically and experimentally of all-trans retinoic acid (ATRA); the findings have important implications for the diagnosis and treatment of atypical APL.
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MESH Headings
- Humans
- Leukemia, Promyelocytic, Acute/diagnosis
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/drug therapy
- In Situ Hybridization, Fluorescence
- Tretinoin/therapeutic use
- Retinoic Acid Receptor alpha/genetics
- Carrier Proteins/genetics
- Translocation, Genetic
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
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Affiliation(s)
- Yue Chen
- Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, 210008, China
| | - Mengge Pan
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Lanxin Chen
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Miaoxin Peng
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Zhenyu Liu
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yiran Fang
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - Ying Du
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yonggong Yang
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Peipei Xu
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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Hoang TH, Manahan-Vaughan D. Differentiated somatic gene expression is triggered in the dorsal hippocampus and the anterior retrosplenial cortex by hippocampal synaptic plasticity prompted by spatial content learning. Brain Struct Funct 2024; 229:639-655. [PMID: 37690045 PMCID: PMC10978647 DOI: 10.1007/s00429-023-02694-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023]
Abstract
Hippocampal afferent inputs, terminating on proximal and distal subfields of the cornus ammonis (CA), enable the functional discrimination of 'what' (item identity) and 'where' (spatial location) elements of a spatial representation. This kind of information is supported by structures such as the retrosplenial cortex (RSC). Spatial content learning promotes the expression of hippocampal synaptic plasticity, particularly long-term depression (LTD). In the CA1 region, this is specifically facilitated by the learning of item-place features of a spatial environment. Gene-tagging, by means of time-locked fluorescence in situ hybridization (FISH) to detect nuclear expression of immediate early genes, can reveal neuronal populations that engage in experience-dependent information encoding. In the current study, using FISH, we examined if learning-facilitated LTD results in subfield-specific information encoding in the hippocampus and RSC. Rats engaged in novel exploration of small items during stimulation of Schaffer collateral-CA1 synapses. This resulted in LTD (> 24 h). FISH, to detect nuclear expression of Homer1a, revealed that the distal-CA1 and proximal-CA3 subcompartments were particularly activated by this event. By contrast, all elements of the proximodistal cornus ammonis-axis showed equal nuclear Homer1a expression following LTD induction solely by means of afferent stimulation. The RSC exhibited stronger nuclear Homer1a expression in response to learning-facilitated LTD, and to novel item-place experience, compared to LTD induced by sole afferent stimulation in CA1. These results show that both the cornus ammonis and RSC engage in differentiated information encoding of item-place learning that is salient enough, in its own right, to drive the expression of hippocampal LTD. These results also reveal a novel role of the RSC in item-place learning.
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Affiliation(s)
- Thu-Huong Hoang
- Medical Faculty, Department of Neurophysiology, Ruhr University Bochum, Universitätsstr. 150, MA 4/150, 44780, Bochum, Germany
| | - Denise Manahan-Vaughan
- Medical Faculty, Department of Neurophysiology, Ruhr University Bochum, Universitätsstr. 150, MA 4/150, 44780, Bochum, Germany.
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Sukhan ZP, Hossen S, Cho Y, Lee WK, Kho KH. Molecular and structural analysis of Hdh-MIRP3 and its impact on reproductive regulation in female Pacific abalone, Haliotis discus hannai. Int J Biol Macromol 2024; 263:130352. [PMID: 38403211 DOI: 10.1016/j.ijbiomac.2024.130352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
Molluscan insulin-related peptides (MIRP) play a crucial role in various biological processes, including reproduction and larval development in mollusk species. To investigate the involvement of MIRP in the ovarian development of Pacific abalone (Haliotis discus hannai), the Hdh-MIRP3 was cloned from cerebral ganglion (CG). Hdh-MIRP3 cDNA was 993 bp long, encoded a 13.22 kDa peptide, comprising 118 amino acids. Fluorescence in situ hybridization confirmed the localization of Hdh-MIRP3 in the CG and ovary. Molecular docking revealed that Hdh-MIRP3 binds to the N-terminal region of Hdh-IRP-R. Tissue expression analysis showed the highest Hdh-MIRP3 expression in the CG, followed by ovarian tissue. Hdh-MIRP3 expression was significantly upregulated in the CG and ovary during the ripe stage of seasonal ovarian development and in effective accumulative temperature conditioned abalone. Furthermore, siRNA silencing of Hdh-MIRP3 significantly downregulated the expression of four reproduction-related genes, including Hdh-GnRH, Hdh-GnRH-R, Hdh-IRP-R, and Hdh-VTG in both the CG and ovary, and Hdh-MIRP3 as well. These results indicate that Hdh-MIRP3 acts as a regulator of ovarian development in Pacific abalone. Additionally, expression analysis indicated that Hdh-MIRP3 plays a role in embryonic and larval development. Overall, the present findings elucidate the role of Hdh-MIRP3 in reproductive development in female Pacific abalone.
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Affiliation(s)
- Zahid Parvez Sukhan
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Shaharior Hossen
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Yusin Cho
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Won-Kyo Lee
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Kang Hee Kho
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea.
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Xiao Y, Chen L, Xu Y, Yu R, Lu J, Ke Y, Guo R, Gu T, Yu H, Fang Y, Li Z, Yu J. Circ-ZNF236 mediates stem cells from apical papilla differentiation by regulating LGR4-induced autophagy. Int Endod J 2024; 57:431-450. [PMID: 38240345 DOI: 10.1111/iej.14021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/06/2023] [Accepted: 01/03/2024] [Indexed: 03/07/2024]
Abstract
AIM Human stem cells from the apical papilla (SCAPs) are an appealing stem cell source for tissue regeneration engineering. Circular RNAs (circRNAs) are known to exert pivotal regulatory functions in various cell differentiation processes, including osteogenesis of mesenchymal stem cells. However, few studies have shown the potential mechanism of circRNAs in the odonto/osteogenic differentiation of SCAPs. Herein, we identified a novel circRNA, circ-ZNF236 (hsa_circ_0000857) and found that it was remarkably upregulated during the SCAPs committed differentiation. Thus, in this study, we showed the significance of circ-ZNF236 in the odonto/osteogenic differentiation of SCAPs and its underlying regulatory mechanisms. METHODOLOGY The circular structure of circ-ZNF236 was identified via Sanger sequencing, amplification of convergent and divergent primers. The proliferation of SCAPs was detected by CCK-8, flow cytometry analysis and EdU incorporation assay. Western blotting, qRT-PCR, Alkaline phosphatase (ALP) and Alizarin red staining (ARS) were performed to explore the regulatory effect of circ-ZNF236/miR-218-5p/LGR4 axis in the odonto/osteogenic differentiation of SCAPs in vitro. Fluorescence in situ hybridization, as well as dual-luciferase reporting assays, revealed that circ-ZNF236 binds to miR-218-5p. Transmission electron microscopy (TEM) and mRFP-GFP-LC3 lentivirus were performed to detect the activation of autophagy. RESULTS Circ-ZNF236 was identified as a highly stable circRNA with a covalent closed loop structure. Circ-ZNF236 had no detectable influence on cell proliferation but positively regulated SCAPs odonto/osteogenic differentiation. Furthermore, circ-ZNF236 was confirmed as a sponge of miR-218-5p in SCAPs, while miR-218-5p targets LGR4 mRNA at its 3'-UTR. Subsequent rescue experiments revealed that circ-ZNF236 regulates odonto/osteogenic differentiation by miR-218-5p/LGR4 in SCAPs. Importantly, circ-ZNF236 activated autophagy, and the activation of autophagy strengthened the committed differentiation capability of SCAPs. Subsequently, in vivo experiments showed that SCAPs overexpressing circ-ZNF236 promoted bone formation in a rat skull defect model. CONCLUSIONS Circ-ZNF236 could activate autophagy through increasing LGR4 expression, thus positively regulating SCAPs odonto/osteogenic differentiation. Our findings suggested that circ-ZNF236 might represent a novel therapeutic target to prompt the odonto/osteogenic differentiation of SCAPs.
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Affiliation(s)
- Ya Xiao
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Luyao Chen
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yunlong Xu
- Endodontic Department, Changzhou Stomatological Hospital, Changzhou, Jiangsu, China
| | - Ruiyang Yu
- School of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Jiamin Lu
- Endodontic Department, Changzhou Stomatological Hospital, Changzhou, Jiangsu, China
| | - Yue Ke
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Rong Guo
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Tingjie Gu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Haowen Yu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yuxin Fang
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Zehan Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Jinhua Yu
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
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Şeker NS, Tekin E, Ak G, Metintaş M, Metintaş S, Dündar E. Investigation of MTAP and BAP1 staining loss and P16/CDKN2A deletion in pleural cytology specimens and its role in the diagnosis of mesothelioma. Diagn Cytopathol 2024; 52:211-216. [PMID: 38243885 DOI: 10.1002/dc.25272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/25/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
BACKGROUND Mesothelioma is a malignant neoplasm with a poor survival rate. We aimed to investigate the importance of BAP1, MTAP (IHC), and p16/CDKN2A homozygous deletion (FISH) in cytologic material obtained from pleural effusion sampling, which is a less invasive procedure in the diagnosis of mesothelioma. METHODS Our study discussed pleural cytology samples of cases with histopathologically proven mesothelioma diagnoses between 2017 and 2022. As the control group, materials that had pleural effusion sampling for other reasons and reactive mesothelial hyperplasia were included in the study. Cell blocks prepared from these materials were subjected to fluorescent in situ hybridization for p16/CDKN2A homozygous deletion and immunohistochemistry for BAP1 and MTAP. RESULTS The specificity of the P16/CDKN2A homozygous deletion in diagnosing mesothelioma is 100%. Its sensitivity is 68.75%. The specificity of BAP1 immunohistochemical nuclear expression loss is 95%, while the sensitivity is 60%. Loss of nuclear expression of MTAP alone has the lowest specificity and sensitivity, with a specificity of 86% and a sensitivity of 43%. The highest sensitivity is reached when BAP1 loss and p16/CDKN2A homozygous deletion are evaluated together, increasing to 81%. The specificity is 95%. CONCLUSION It has been determined that any marker alone cannot be used for a definitive mesothelioma diagnosis in pleural effusion cytological specimens; however, sensitivity increases in some combinations. The combination of BAP1 immunohistochemistry and p16/CDKN2A homozygous deletion detected by FISH, which has a higher specificity and sensitivity, can be routinely used in the diagnosis of mesothelioma under the guidance of clinical and radiologic information.
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Affiliation(s)
- Nazli Sena Şeker
- Department of Medical Pathology, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
| | - Emel Tekin
- Department of Medical Pathology, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
| | - Güntülü Ak
- Department of Thorasic Oncology, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
| | - Muzaffer Metintaş
- Department of Thorasic Oncology, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
| | - Selma Metintaş
- Department of Public Health, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
| | - Emine Dündar
- Department of Medical Pathology, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Campus, Eskişehir, Turkey
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Kurashige R, Kurashige M, Okada Y, Higuchi K, Yuda S, Hino A, Miyamura T, Ichii M, Fukushima K, Honma K, Takeuchi M, Yokota T, Ishikawa J, Sawada A, Shibayama H, Hosen N, Morii E. Differentiating Between Epstein-Barr Virus-positive Lymphoid Neoplasm Relapse and Post-transplant Lymphoproliferative Disorder After Sex-mismatched Hematopoietic Stem Cell Transplantation. Am J Surg Pathol 2024; 48:395-405. [PMID: 38287877 DOI: 10.1097/pas.0000000000002183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
After allogeneic hematopoietic stem cell transplantation (HSCT), accurate differentiation between donor-derived post-transplant lymphoproliferative disorder (PTLD) and relapse of recipient-derived lymphoproliferative disorder (LPD) is crucial for determining treatment. Conventional diagnostic approaches for PTLD include histopathological examination, flow cytometry, and chimerism analysis of bulk tumor tissue. However, these methods are inconclusive in cases in which the primary disease is an Epstein-Barr virus (EBV)-positive LPD and is of the same lineage as that of the post-HSCT LPD tumor cells. Particularly, in cases where the number of tumor cells in the tissue is low, it is difficult to determine the origin of tumor cells. In this study, we developed a new method to simultaneously detect signals using sex chromosome fluorescence in situ hybridization, immunofluorescence staining, and EBV-encoded small RNA in situ hybridization on a single section of formalin-fixed paraffin-embedded histopathological specimen. The utility of the method was validated using specimens from 6 cases of EBV-positive LPD after sex-mismatched HSCT that were previously difficult to diagnose, including Hodgkin lymphoma-like PTLD that developed after HSCT for Hodgkin lymphoma and recurrence of chronic active EBV infection. This method successfully preserved the histologic structure after staining and allowed accurate determination of tumor cell origin and lineage at the single-cell level, providing a definitive diagnosis in all cases. This method provides a powerful tool for the diagnosis of LPDs after sex-mismatched HSCT.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Keiichiro Honma
- Diagnostic Pathology and Cytology, Osaka International Cancer Institute
| | | | | | | | | | - Hirohiko Shibayama
- Department of Hematology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Naoki Hosen
- Departments of Hematology and Oncology
- Laboratory of Cellular Immunotherapy, World Premier International Immunology Frontier Research Center
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita
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Wang L, Shen K, Gao Z, Ren M, Wei C, Yang Y, Li Y, Zhu Y, Zhang S, Ding Y, Zhang T, Li J, Zhu M, Zheng S, Yang Y, Du S, Wei C, Gu J. Melanoma Derived Exosomes Amplify Radiotherapy Induced Abscopal Effect via IRF7/I-IFN Axis in Macrophages. Adv Sci (Weinh) 2024; 11:e2304991. [PMID: 38286661 PMCID: PMC10987102 DOI: 10.1002/advs.202304991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/11/2023] [Indexed: 01/31/2024]
Abstract
Radiotherapy (RT) can induce tumor regression outside the irradiation field, known as the abscopal effect. However, the detailed underlying mechanisms remain largely unknown. A tumor-bearing mouse model is successfully constructed by inducing both subcutaneous tumors and lung metastases. Single-cell RNA sequencing, immunofluorescence, and flow cytometry are performed to explore the regulation of tumor microenvironment (TME) by RT. A series of in vitro assays, including luciferase reporter, RNA Pulldown, and fluorescent in situ hybridization (FISH) assays, are performed to evaluate the detailed mechanism of the abscopal effect. In addition, in vivo assays are performed to investigate combination therapy strategies for enhancing the abscopal effect. The results showed that RT significantly inhibited localized tumor and lung metastasis progression and improved the TME. Mechanistically, RT promoted the release of tumor-derived exosomes carrying circPIK3R3, which is taken up by macrophages. circPIK3R3 promoted Type I interferon (I-IFN) secretion and M1 polarization via the miR-872-3p/IRF7 axis. Secreted I-IFN activated the JAK/STAT signaling pathway in CD8+ T cells, and promoted IFN-γ and GZMB secretion. Together, the study shows that tumor-derived exosomes promote I-IFN secretion via the circPIK3R3/miR-872-3p/IRF7 axis in macrophages and enhance the anti-tumor immune response of CD8+ T cells.
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Affiliation(s)
- Lu Wang
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Kangjie Shen
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Zixu Gao
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Ming Ren
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Chenlu Wei
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Yang Yang
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Yinlam Li
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Yu Zhu
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Simin Zhang
- Department of Plastic SurgeryShanghai Geriatric Medical CenterShanghai201104P. R. China
| | - Yiteng Ding
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Tianyi Zhang
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Jianrui Li
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Ming Zhu
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Shaoluan Zheng
- Department of Plastic SurgeryZhongshan Hospital Xiamen BranchFudan UniversityXiamen361015P. R. China
| | - Yanwen Yang
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Shisuo Du
- Department of RadiotherapyZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Chuanyuan Wei
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Jianying Gu
- Department of Plastic SurgeryZhongshan HospitalFudan UniversityShanghai200032P. R. China
- Department of Plastic SurgeryZhongshan Hospital Xiamen BranchFudan UniversityXiamen361015P. R. China
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Jedraszak G, Jobic F, Receveur A, Bilan F, Gilbert-Dussardier B, Tiffany B, Missirian C, Willems M, Odent S, Lucas J, Dubourg C, Schaefer E, Scheidecker S, Lespinasse J, Goldenberg A, Guerrot AM, Joly-Helas G, Chambon P, Le Caignec C, David A, Coutton C, Satre V, Vieville G, Amblard F, Harbuz R, Sanlaville D, Till M, Vincent-Delorme C, Colson C, Andrieux J, Naudion S, Toutain J, Rooryck C, de Fréminville B, Prieur F, Daire VC, Amram D, Kleinfinger P, Schulze MB, Raabe-Meyer G, Courage C, Lemke J, Stefanou EG, Loretta T, Emmanouil M, Tzeli SK, Sodowska H, Anderson J, Nandini A, Copin H, Garçon L, Liehr T, Morin G. Cat eye syndrome: Clinical, cytogenetics and familial findings in a large cohort of 43 patients highlighting the importance of congenital heart disease and inherited cases. Am J Med Genet A 2024; 194:e63476. [PMID: 37974505 DOI: 10.1002/ajmg.a.63476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/13/2023] [Accepted: 11/05/2023] [Indexed: 11/19/2023]
Abstract
Cat Eye Syndrome (CES) is a rare genetic disease caused by the presence of a small supernumerary marker chromosome derived from chromosome 22, which results in a partial tetrasomy of 22p-22q11.21. CES is classically defined by association of iris coloboma, anal atresia, and preauricular tags or pits, with high clinical and genetic heterogeneity. We conducted an international retrospective study of patients carrying genomic gain in the 22q11.21 chromosomal region upstream from LCR22-A identified using FISH, MLPA, and/or array-CGH. We report a cohort of 43 CES cases. We highlight that the clinical triad represents no more than 50% of cases. However, only 16% of CES patients presented with the three signs of the triad and 9% not present any of these three signs. We also highlight the importance of other impairments: cardiac anomalies are one of the major signs of CES (51% of cases), and high frequency of intellectual disability (47%). Ocular motility defects (45%), abdominal malformations (44%), ophthalmologic malformations (35%), and genitourinary tract defects (32%) are other frequent clinical features. We observed that sSMC is the most frequent chromosomal anomaly (91%) and we highlight the high prevalence of mosaic cases (40%) and the unexpectedly high prevalence of parental transmission of sSMC (23%). Most often, the transmitting parent has mild or absent features and carries the mosaic marker at a very low rate (<10%). These data allow us to better delineate the clinical phenotype associated with CES, which must be taken into account in the cytogenetic testing for this syndrome. These findings draw attention to the need for genetic counseling and the risk of recurrence.
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Affiliation(s)
- Guillaume Jedraszak
- Constitutional Genetics Laboratory, University Hospital of Amiens, Amiens, France
- UR4666, University of Picardy Jules Verne, Amiens, France
| | - Florence Jobic
- Clinical Genetics Unit, University Hospital of Amiens, Amiens, France
| | - Aline Receveur
- Constitutional Genetics Laboratory, University Hospital of Amiens, Amiens, France
| | - Frédéric Bilan
- Genetics Laboratory, University Hospital of Poitiers, Poitiers, France
| | | | - Busa Tiffany
- Medical Genetics Unit, University Hospital of Marseille, Marseille, France
| | - Chantal Missirian
- Cytogenetics Laboratory, University Hospital of Marseille, Marseille, France
| | - Marjolaine Willems
- Medical Genetics Laboratory, University Hospital of Montpellier, Montpellier, France
| | - Sylvie Odent
- Medical Genetics Unit, University Hospital of Rennes, Rennes, France
| | - Josette Lucas
- Genetics Laboratory, University Hospital of Rennes, Rennes, France
| | | | - Elise Schaefer
- Clinical Genetics Unit, University Hospital of Strasbourg, Strasbourg, France
| | | | | | - Alice Goldenberg
- Clinical Genetics Unit, University Hospital of Rouen, Rouen, France
| | | | | | - Pascal Chambon
- Cytogenetics Laboratory, University Hospital of Rouen, Rouen, France
| | - Cédric Le Caignec
- Medical Gentics Unit, University Hospital of Toulouse, Toulouse, France
| | - Albert David
- Clinical Genetics Unit, University Hospital of Nantes, Nantes, France
| | - Charles Coutton
- Cytogenetics Laboratory, University Hospital of Grenoble & INSERM U1209 Institute for Advanced Biosciences, University of Grenoble Alpes, Grenoble, France
| | - Véronique Satre
- Cytogenetics Laboratory, University Hospital of Grenoble & INSERM U1209 Institute for Advanced Biosciences, University of Grenoble Alpes, Grenoble, France
| | - Gaëlle Vieville
- Cytogenetics Laboratory, University Hospital of Grenoble, Grenoble, France
| | - Florence Amblard
- Cytogenetics Laboratory, University Hospital of Grenoble, Grenoble, France
| | - Radu Harbuz
- Cytogenetics Laboratory, University Hospital of Grenoble, Grenoble, France
| | | | - Marianne Till
- Cytogenetics Laboratory, University Hospital of Lyon, Bron, France
| | - Catherine Vincent-Delorme
- Catherine Vincent Delorme, Clinical Genetics Unit Guy Fontaine, University Hospital of Lille, Lille, France
| | - Cindy Colson
- Catherine Vincent Delorme, Clinical Genetics Unit Guy Fontaine, University Hospital of Lille, Lille, France
| | - Joris Andrieux
- Molecular Genetics Institute, University hospital of Lille, Lille, France
| | - Sophie Naudion
- Clinical Genetics Unit, University Hospital of Bordeaux, Bordeaux, France
| | - Jérome Toutain
- Clinical Genetics Unit, University Hospital of Bordeaux, Bordeaux, France
| | - Caroline Rooryck
- Medical Genetics Laboratory, University Hospital of Bordeaux, Bordeaux, France
| | | | - Fabienne Prieur
- Medical Genetics Unit, University Hospital of Saint-Etienne, Saint Etienne, France
| | | | - Daniel Amram
- Clinicial Genetics Unit, University Hospital of Creteil, Creteil, France
| | | | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | | | | | - Johannes Lemke
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Eunice G Stefanou
- Cytogenetics Unit, Laboratory of Medical Genetics, University General Hospital of Patras, Patras, Greece
| | - Thomaidis Loretta
- Developmental Assessment Unit, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Sophia Kitsiou Tzeli
- Department of Medical Genetics, National and Kapodistrian University of Athens, Athens, Greece
| | - Henryka Sodowska
- Niepubliczny Zakład Opieki Zdrowotne "Genom", Ruda Slaska, Poland
| | - Jasen Anderson
- Cytogenetics Department, Sullivan and Nicolaides Pathology, Taringa, Queensland, Australia
| | - Adayapalam Nandini
- Department of Cytogenetics, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Henri Copin
- Constitutional Genetics Laboratory, University Hospital of Amiens, Amiens, France
| | - Loïc Garçon
- Constitutional Genetics Laboratory, University Hospital of Amiens, Amiens, France
- UR4666, University of Picardy Jules Verne, Amiens, France
| | - Thomas Liehr
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Jena, Germany
| | - Gilles Morin
- Clinical Genetics Unit, University Hospital of Amiens, Amiens, France
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Wu J, Cao CZ, Cui HL, Du G, Shi HZ, Liang J, Guo L, Wang YC, Zhang J, Zhou AP, Li CL, Zheng S, Shou JZ. Prognosis and Clinicopathological Characters of Adult TFEB-Altered Renal Cell Carcinoma: A Single Center Experience of 18 Cases. Clin Genitourin Cancer 2024; 22:261-268.e3. [PMID: 38104031 DOI: 10.1016/j.clgc.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
INTRODUCTION TFEB-altered renal cell carcinoma (RCC) is a rare entity characterized by the rearrangement of the TFEB gene or TFEB amplified. The therapeutic implications and long-term survival of TFEB-altered RCC remain unclear, especially for metastatic cases. MATERIALS AND METHODS The current study initially enrolled 7604 consecutive RCC patients at our center and a total of 248 patients were selected for FISH and immunohistochemistry (IHC) analysis. Eventually, eighteen TFEB-altered RCC patients were identified. We then reported the clinical, morphological, IHC, and radiological features of these cases. RESULTS The median age at initial diagnosis was 45 years, ranging from 18 years to 66 years. The majority of the TFEB-altered RCC patients were male (61.1%), with localized disease (T1-2N0M0, 77.8%). The median split TFEB fluorescent signal was 24%, ranging from 15%-80%. The morphological characteristics of TFEB-altered RCC were variable, with acinar, papillary, solid, or nest patterns. IHC and magnetic resonance imaging features of TFEB-altered RCC were nonspecific. Nine patients with localized disease received partial nephrectomy and five patients with localized disease received radical nephrectomy. During the median follow-up of 67 months, no signs of recurrence or metastasis were found in these patients. Two patients had distant metastasis and received axitinib plus PD-1 immunotherapy. One of them died at 40-month follow-up and another still alive at 88-month follow-up. CONCLUSION TFEB-altered RCC is an extremely rare variant, exhibited mixed morphological characteristics. The radiological feature lack specificity, resembling clear cell RCC or papillary RCC. Genetic analyses including FISH analysis is crucial in the diagnosis of TFEB-altered RCC. For localized TFEB-altered RCC, both radical nephrectomy and partial nephrectomy conferred satisfactory prognosis. For metastatic TFEB-altered RCC, immunotherapy-based drug combinations could be a promising treatment strategy.
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Affiliation(s)
- Jie Wu
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chuan-Zhen Cao
- Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Hong-Lei Cui
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Gan Du
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong-Zhe Shi
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Liang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yi-Cheng Wang
- Department of Imaging, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jin Zhang
- Department of Imaging, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ai-Ping Zhou
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chang-Ling Li
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shan Zheng
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Jian-Zhong Shou
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Li Y, Yu B, Li H, Hou W, Yin J, Zhou Y, Yu Z. Human milk exosome-derived circDNAJB6 improves bronchopulmonary dysplasia model by promoting DNAJB6 gene transcription. J Bioenerg Biomembr 2024; 56:171-180. [PMID: 38244155 DOI: 10.1007/s10863-024-10002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2024] [Indexed: 01/22/2024]
Abstract
To verify the protective effect of circDNAJB6 on Bronchopulmonary dysplasia (BPD) cell and animal models and to explore the possible mechanism of its protective effect. The function of circDNAJB6 was investigated at the cell and animal levels. Nuclear and Cytoplasmic RNA extraction kits and fluorescence in situ hybridization (FISH) were used to explore the distribution of circDNAJB6 in cells, and the potential mechanism of circDNAJB6 was verified by q-PCR, luciferase assays and rescue experiments.CircDNAJB6 is abundant in breast milk exosomes. Overexpression of circDNAJB6 can ameliorate damage in BPD models caused by hyperoxia exposure in vivo and in vitro. Mechanistically, circDNAJB6 can target the downstream DNAJB6 gene and promote the transcription of DNAJB6, exertive a protective effect on the experimental BPD model. Our results showed that circDNAJB6 alleviated damage and inhibited the proliferation of alveolar epithelial cells in the BPD model by promoting transcription of parent gene DNAJB6. Human milk exosome-derived circDNAJB6 provides new directions for preventing and treating BPD.
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Affiliation(s)
- Yubai Li
- Division of Neonatology, Department of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Boshi Yu
- Division of Neonatology, Department of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Huimin Li
- Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Weiwei Hou
- The Yangzhou School of Clinical Medicine of Nanjing Medical University, Yangzhou, 225000, China
| | - Jing Yin
- Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China.
| | - Yahui Zhou
- Division of Neonatology, Department of Pediatrics, Wuxi Children's Hospital, Children's Hospital affiliated to Jiangnan University, Wuxi, 214000, China.
| | - Zhangbin Yu
- Division of Neonatology, Department of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China.
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Polidorio N, Montagna G, Sevilimedu V, Le T, Morrow M. Do HER2-Low Tumors Have a Distinct Clinicopathologic Phenotype? Ann Surg Oncol 2024; 31:2231-2243. [PMID: 38158494 DOI: 10.1245/s10434-023-14800-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Breast cancer subtypes, distinguished by hormone receptor (HR) and HER2 status, have different clinicopathologic features. With recognition of the clinical relevance of HER2-low, there is debate as to whether this is a distinct subtype. Our study aimed to determine whether HER2-low breast cancers have specific clinicopathologic features that differ from those of HER2-negative and HER2-positive cancers. PATIENTS AND METHODS A total of 11,072 patients undergoing upfront surgery from 1998 to 2010 were identified from a single-institution prospectively maintained database. HER2 status was classified by immunohistochemistry (IHC)/fluorescence in situ hybridization (FISH) as HER2 negative (41.2%), HER2 low (45%; IHC 1+ or 2+ with negative FISH), and HER2 positive (13.7%), and stratified by HR status. Univariate (UVA) and multivariable multinomial logistic regression analysis (MVA) were performed to determine associations among variables and subtypes. RESULTS Compared with HER2-negative tumors, HER2 low was associated with lymphovascular invasion [odds ratio (OR) 1.2, 95% confidence interval (CI) 1.06-1.36; p = 0.003], multifocality (OR 1.26, 95% CI 1.12-1.42; p < 0.001), nodal micrometastasis (OR 1.15, 95% CI 1.02-1.31; p = 0.024), and lower rates of ≥ 3 positive nodes (OR 0.77, 95% CI 0.66-0.90, p = 0.001). When stratified by HR expression, in both HR-positive and HR-negative tumors, age and multifocality were associated with HER2 low on UVA. On MVA, no variables were independently associated with both HR-negative and HR-positive/HER2-low tumors compared with HER2-negative tumors. In contrast, HER2-positive tumors, regardless of HR status, were associated with multifocality and an extensive intraductal component. CONCLUSION Clinicopathologic features of HER2-low tumors appear to be primarily related to HR status. Our findings do not support the characterization of HER2 low as a separate subtype.
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Affiliation(s)
- Natália Polidorio
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Giacomo Montagna
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Varadan Sevilimedu
- Biostatistics Service, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tiana Le
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Monica Morrow
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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