1
|
Taylor KE, Miller LG, Contreras LM. RNA-binding proteins that preferentially interact with 8-oxoG-modified RNAs: our current understanding. Biochem Soc Trans 2024; 52:111-122. [PMID: 38174726 DOI: 10.1042/bst20230254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
Cells encounter a variety of stresses throughout their lifetimes. Oxidative stress can occur via a myriad of factors, including exposure to chemical toxins or UV light. Importantly, these stressors induce chemical changes (e.g. chemical modifications) to biomolecules, such as RNA. Commonly, guanine is oxidized to form 8-oxo-7,8-hydroxyguanine (8-oxoG) and this modification can disrupt a plethora of cellular processes including messenger RNA translation and stability. Polynucleotide phosphorylase (PNPase), heterogeneous nuclear ribonucleoprotein D (HNRPD/Auf1), poly(C)-binding protein (PCBP1/HNRNP E1), and Y-box binding protein 1 (YB-1) have been identified as four RNA-binding proteins that preferentially bind 8-oxoG-modified RNA over unmodified RNA. All four proteins are native to humans and PNPase is additionally found in bacteria. Additionally, under oxidative stress, cell survival declines in mutants that lack PNPase, Auf1, or PCBP1, suggesting they are critical to the oxidative stress response. This mini-review captures the current understanding of the PNPase, HNRPD/Auf1, PCBP1, and YB-1 proteins and the mechanism that has been outlined so far by which they recognize and interact with 8-oxoG-modified RNAs.
Collapse
Affiliation(s)
- Kathleen E Taylor
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
| | - Lucas G Miller
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
| | - Lydia M Contreras
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| |
Collapse
|
2
|
Si Z, Su W, Zhou Z, Li J, Su C, Zhang Y, Hu Z, Huang Z, Zhou H, Cong A, Zhou Z, Cao W. Hyperglycolysis in endothelial cells drives endothelial injury and microvascular alterations in peritoneal dialysis. Clin Transl Med 2023; 13:e1498. [PMID: 38037461 PMCID: PMC10689974 DOI: 10.1002/ctm2.1498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Endothelial cell (EC) dysfunction leading to microvascular alterations is a hallmark of technique failure in peritoneal dialysis (PD). However, the mechanisms underlying EC dysfunction in PD are poorly defined. METHODS We combined RNA sequencing with metabolite set analysis to characterize the metabolic profile of peritoneal ECs from a mouse model of PD. This was combined with EC-selective blockade of glycolysis by genetic or pharmacological inhibition of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) in vivo and in vitro. We also investigated the association between peritoneal EC glycolysis and microvascular alterations in human peritoneal samples from patients with end-stage kidney disease (ESKD). RESULTS In a mouse model of PD, peritoneal ECs had a hyperglycolytic metabolism that shunts intermediates into nucleotide synthesis. Hyperglycolytic mouse peritoneal ECs displayed a unique active phenotype with increased proliferation, permeability and inflammation. The active phenotype of mouse peritoneal ECs can be recapitulated in human umbilical venous ECs and primary human peritoneal ECs by vascular endothelial growth factor that was released from high glucose-treated mesothelial cells. Importantly, reduction of peritoneal EC glycolysis, via endothelial deficiency of the glycolytic activator PFKFB3, inhibited PD fluid-induced increases in peritoneal capillary density, vascular permeability and monocyte extravasation, thereby protecting the peritoneum from the development of structural and functional damages. Mechanistically, endothelial PFKFB3 deficiency induced the protective effects in part by inhibiting cell proliferation, VE-cadherin endocytosis and monocyte-adhesion molecule expression. Pharmacological PFKFB3 blockade induced a similar therapeutic benefit in this PD model. Human peritoneal tissue from patients with ESKD also demonstrated evidence of increased EC PFKFB3 expression associated with microvascular alterations and peritoneal dysfunction. CONCLUSIONS These findings reveal a critical role of glycolysis in ECs in mediating the deterioration of peritoneal function and suggest that strategies targeting glycolysis in peritoneal ECs may be of therapeutic benefit for patients undergoing PD.
Collapse
Affiliation(s)
- Zekun Si
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Wenyan Su
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhuoyu Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Jinjin Li
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Cailing Su
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Ying Zhang
- Division of NephrologyThe Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP. R. China
| | - Zuoyu Hu
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhijie Huang
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Hong Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Ansheng Cong
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhanmei Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Wei Cao
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| |
Collapse
|
3
|
Grahn A, Coleman JA, Eriksson Y, Gabrielsson S, Madsen JS, Tham E, Thomas K, Turney B, Uhlén P, Vollmer T, Zieger K, Osther PJS, Brehmer M. Consultation on UTUC II Stockholm 2022: diagnostic and prognostic methods-what's around the corner? World J Urol 2023; 41:3405-3411. [PMID: 37725130 PMCID: PMC10693501 DOI: 10.1007/s00345-023-04597-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/23/2023] [Indexed: 09/21/2023] Open
Abstract
PURPOSE To map current literature and provide an overview of upcoming future diagnostic and prognostic methods for upper tract urothelial carcinoma (UTUC), including translational medical science. METHODS A scoping review approach was applied to search the literature. Based on the published literature, and the experts own experience and opinions consensus was reached through discussions at the meeting Consultation on UTUC II in Stockholm, September 2022. RESULTS The gene mutational profile of UTUC correlates with stage, grade, prognosis, and response to different therapeutic strategies. Analysis of pathway proteins downstream of known pathogenic mutations might be an alternative approach. Liquid biopsies of cell-free DNA may detect UTUC with a higher sensitivity and specificity than urinary cytology. Extracellular vesicles from tumour cells can be detected in urine and may be used to identify the location of the urothelial carcinoma in the urinary tract. 3D microscopy of UTUC samples may add information in the analysis of tumour stage. Chemokines and chemokine receptors were linked to overall survival and responsiveness to neoadjuvant chemotherapy in muscle-invasive bladder cancer, which is potentially also of interest in UTUC. CONCLUSION Current diagnostic methods for UTUC have shortcomings, especially concerning prognostication, which is important for personalized treatment decisions. There are several upcoming methods that may be of interest for UTUC. Most have been studied for urothelial carcinoma of the bladder, and it is important to keep in mind that UTUC is a different entity and not all methods are adaptable or applicable to UTUC.
Collapse
Affiliation(s)
- Alexandra Grahn
- Division of Urology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Jonathan A Coleman
- Department of Surgery/Urology, Memorial Sloan Kettering Cancer Center, Weill-Cornell University Medical College, New York, USA
| | | | - Susanne Gabrielsson
- Division of Immunology and Allergy, Departments of Medicine, and Clinical Immunology and Transfusion Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Jonna Skov Madsen
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Emma Tham
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Kay Thomas
- Guy's Stone Unit, Guy's and St Thomas' Hospital, London, UK
| | - Ben Turney
- Department of Urology, Churchill Hospital, Oxford, UK
| | - Per Uhlén
- Deptartment of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Tino Vollmer
- Department of Hematology and Oncology, Medical Center-University of Freiburg, Freiburg, Germany
| | - Karsten Zieger
- Department of Urology, Lillebælt Hospital, Vejle, Denmark
| | - Palle Jörn Sloth Osther
- Department of Urology, Urological Research Center, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Marianne Brehmer
- Departments of Urology and Clinical Sciences, Stockholm South General Hospital Stockholm, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
4
|
Jones RB, Silva AD, Ankenbauer KE, Britain CM, Chakraborty A, Brown JA, Ballinger SW, Bellis SL. Role of the ST6GAL1 sialyltransferase in regulating ovarian cancer cell metabolism. Glycobiology 2023; 33:626-636. [PMID: 37364046 PMCID: PMC10560082 DOI: 10.1093/glycob/cwad051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023] Open
Abstract
The ST6GAL1 sialyltransferase, which adds α2-6-linked sialic acids to N-glycosylated proteins, is upregulated in many malignancies including ovarian cancer. Through its activity in sialylating select surface receptors, ST6GAL1 modulates intracellular signaling to regulate tumor cell phenotype. ST6GAL1 has previously been shown to act as a survival factor that protects cancer cells from cytotoxic stressors such as hypoxia. In the present study, we investigated a role for ST6GAL1 in tumor cell metabolism. ST6GAL1 was overexpressed (OE) in OV4 ovarian cancer cells, which have low endogenous ST6GAL1, or knocked-down (KD) in ID8 ovarian cancer cells, which have high endogenous ST6GAL1. OV4 and ID8 cells with modulated ST6GAL1 expression were grown under normoxic or hypoxic conditions, and metabolism was assessed using Seahorse technology. Results showed that cells with high ST6GAL1 expression maintained a higher rate of oxidative metabolism than control cells following treatment with the hypoxia mimetic, desferrioxamine (DFO). This enrichment was not due to an increase in mitochondrial number. Glycolytic metabolism was also increased in OV4 and ID8 cells with high ST6GAL1 expression, and these cells displayed greater activity of the glycolytic enzymes, hexokinase and phosphofructokinase. Metabolism maps were generated from the combined Seahorse data, which suggested that ST6GAL1 functions to enhance the overall metabolism of tumor cells. Finally, we determined that OV4 and ID8 cells with high ST6GAL1 expression were more invasive under conditions of hypoxia. Collectively, these results highlight the importance of sialylation in regulating the metabolic phenotype of ovarian cancer cells.
Collapse
Affiliation(s)
- Robert B Jones
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Austin D Silva
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Katherine E Ankenbauer
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Colleen M Britain
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Asmi Chakraborty
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Jamelle A Brown
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Scott W Ballinger
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Susan L Bellis
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| |
Collapse
|
5
|
Wu Z, Yang Q, Xu K, Wu J, Yang B. Study on the Key Genes and Molecular Mechanisms of IL-27 Promoting Keratinocytes Proliferation Based on Transcriptome Sequencing. Clin Cosmet Investig Dermatol 2023; 16:1457-1472. [PMID: 37309428 PMCID: PMC10257925 DOI: 10.2147/ccid.s414633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/31/2023] [Indexed: 06/14/2023]
Abstract
Background IL-27 involves psoriasis pathogenesis potentially by promoting excessive keratinocyte proliferation. However, the underlying mechanisms remain unclear. This study aims to explore the key genes and molecular mechanisms of IL-27-induced keratinocyte proliferation. Methods Primary keratinocytes and immortalized human keratinocyte HaCaT cells were treated with different concentrations of IL-27 for 24 h and 48 h respectively. CCK-8 assay was used to detect cell viability and Western blot was used to detect the expression of CyclinE and CyclinB1. Primary keratinocytes and HaCaT cells were treated with IL-27, and their differentially expressed (DE) genes were obtained by transcriptome sequencing. Then Kyoto Encyclopedia of Genes and Genomes enrichment analysis was performed to predict related pathways, and the long non-coding RNA-microRNA-messenger RNA network and protein-protein interaction network were constructed to screen key genes. Biochemical experiments were performed to assess the content of glucose (Glu), lactic acid (LA), and ATP. Flow cytometry and Mito-Tracker Green staining were used to detect mitochondrial membrane potential and the number of mitochondria respectively. Western blot was performed to assess the expression of glucose transporter 1 (GLUT1), hexokinase 2 (HK2), lactate dehydrogenase A (LDHA), phosphoglycerate kinase 1 (PGK1), phosphorylated dynamin-related protein 1 (p-DRP1) (s637) and mitofusin 2 (MFN2). Results IL-27 concentration-dependently increased keratinocyte viability and the expression of CyclinE and CyclinB1. Bioinformatics analysis showed that the enriched pathways of DE genes were closely associated with cellular metabolism. miR-7-5p, EGFR, PRKCB, PLCB1 and CALM3 were key genes. IL-27 increased the content of LA, mitochondrial membrane potential, and the expression of GLUT1, HK2, LDHA, PGK1, p-DRP1 (s637), and MFN2, accompanied by decreased contents of Glu and ATP (P<0.001). Conclusion IL-27 potentially promotes keratinocyte proliferation by enhancing glycolysis, mitochondrial function, and mitochondrial fusion. The findings of this study may be conducive to revealing the role of IL-27 in the pathogenesis of psoriasis.
Collapse
Affiliation(s)
- Zijun Wu
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
- Department of Burn and Plastic Surgery, General Hospital of Central Theater Command, Wuhan, People’s Republic of China
| | - Qin Yang
- Department of Laboratory Medicine, General Hospital of Central Theater Command, Wuhan, People’s Republic of China
| | - Kai Xu
- Department of Burn and Plastic Surgery, General Hospital of Central Theater Command, Wuhan, People’s Republic of China
| | - Juanjuan Wu
- Department of Burn and Plastic Surgery, General Hospital of Central Theater Command, Wuhan, People’s Republic of China
| | - Bin Yang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
- Department of Burn and Plastic Surgery, General Hospital of Central Theater Command, Wuhan, People’s Republic of China
| |
Collapse
|
6
|
Habshi T, Shelke V, Kale A, Lech M, Bhanudas Gaikwad A. Hippo signaling in acute kidney injury to chronic kidney disease transition: current understandings and future targets. Drug Discov Today 2023:103649. [PMID: 37268185 DOI: 10.1016/j.drudis.2023.103649] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/19/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Acute kidney injury (AKI)-to-chronic kidney disease (CKD) transition is a slow but persistent progression toward end-stage kidney disease. Earlier reports have shown that Hippo components, such as Yes-associated protein (YAP) and its homolog TAZ (Transcriptional coactivator with PDZ-binding motif), regulate inflammation and fibrogenesis during the AKI-to-CKD transition. Notably, the roles and mechanisms of Hippo components vary during AKI, AKI-to-CKD transition, and CKD. Hence, it is important to understand these roles in detail. This review addresses the potential of Hippo regulators or components as future therapeutic targets for halting the AKI-to-CKD transition.
Collapse
Affiliation(s)
- Tahib Habshi
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan-333031, India
| | - Vishwadeep Shelke
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan-333031, India
| | - Ajinath Kale
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan-333031, India
| | - Maciej Lech
- Division of Nephrology, Department of Internal Medicine IV, Hospital of the Ludwig Maximilians University Munich, 80336 Munich, Germany
| | - Anil Bhanudas Gaikwad
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan-333031, India.
| |
Collapse
|
7
|
Bultynck G, Khan S, Schmitz ML. Introducing the special issue on "emerging Concepts & non-Canonical Pathways in cellular signaling". BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2023; 1870:119478. [PMID: 37080361 DOI: 10.1016/j.bbamcr.2023.119478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Affiliation(s)
- Geert Bultynck
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49,, BE-3000 Leuven, Belgium
| | - Shazia Khan
- Elsevier, 50 Hampshire Street, Cambridge, Massachusetts, US
| | - M Lienhard Schmitz
- Justus-Liebig-University, Institute of Biochemistry, Justus-Liebig-University, Medical Faculty, Friedrichstrasse 24, 35392 D-Giessen, Germany.
| |
Collapse
|
8
|
Wang S, Zhang X, Lei H, Song L, Huang Y, Kang T, Zhang M, Wang N, Yang P, Feng S, Wang J, Bai R, Wang N, Wang W, Zheng Y. Proline-rich 11 (PRR11) promotes the progression of cutaneous squamous cell carcinoma by activating the EGFR signaling pathway. Mol Carcinog 2023; 62:613-627. [PMID: 36727626 DOI: 10.1002/mc.23510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/31/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin malignancies, and its incidence rate is increasing worldwide. Proline-rich 11 (PRR11) has been reported to be involved in the occurrence and development of various tumors. However, the role of PRR11 in cSCC remains unknown. In the present study, we observed upregulated expression of PRR11 in cSCC tissues and cell lines. Knockdown of PRR11 in the cSCC cell lines A431 and SCL-1 inhibited cell proliferation by inducing cell cycle arrest during the G1/S phase transition, promoted cell apoptosis, and reduced cell migration and invasion in vitro. Conversely, overexpression of PRR11 promoted cell proliferation, decreased cell apoptosis, and enhanced cell migration and invasion. PRR11 knockdown also inhibited cSCC tumor growth in a mouse xenograft model. Mechanistic investigations by RNA sequencing revealed that 891 genes were differentially expressed genes between cells with PRR11 knockdown and control cells. Enrichment analysis of different genes showed that the epidermal growth factor receptor (EGFR) signaling pathway was the top enriched pathway. We further validated that PRR11 induced EGFR pathway activity, which contributed to cSCC progression. These data suggest that PRR11 may serve as a novel therapeutic target in cSCC.
Collapse
Affiliation(s)
- Shengbang Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiu Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hao Lei
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Liumei Song
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yingjian Huang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tong Kang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mengdi Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ning Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pengju Yang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuo Feng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingping Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruimin Bai
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Nan Wang
- Department of Emergency, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zheng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| |
Collapse
|
9
|
Yu K, Zhao X, Xiang Y, Li C. Phenotypic and functional characterization of two coelomocyte subsets in Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2023; 132:108453. [PMID: 36471560 DOI: 10.1016/j.fsi.2022.108453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/20/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The hemocytes of invertebrates are composed of different cell subsets with different morphologies and structures. Different cell subsets have different immune functions, which play an important role in innate immune response against pathogens. However, the understanding of the classification of Apostichopus japonicus coelomocytes and the molecular basis of immune function of different cell subsets is very limited. In this study, two coelomocyte subpopulations of A. japonicus were isolated by Percoll density gradient centrifugation. They were identified from their morphological and structural characteristics, namely, spherical cells with a size of 10-12 μm spherical in shape and a large number of small granules inside; lymphocyte-like cells with a size of 4-5 μm spherical or oval in shape, and 1-3 filopodia. Functionally, the phagocytic capacity and lysosomal activity in spherical cells were significantly greater than those in lymphocyte-like cells. The results suggest that spherical cells may play a more critical role in the immune responses. Meanwhile, transcriptome sequencing analysis was performed to further clarify the functional differences between the two cell subsets. The data indicated significantly different gene expression patterns in them. Spherical cells tend to participate in immune defense, whereas lymphocyte-like cells tend to participate in energy metabolism. In addition, lymphocyte-like cells may convert oxidative phosphorylation to glycolysis by changing the manner of energy metabolism to quickly adapt to the energy demand of external stimuli. Spherical cells may respond to LPS stimulation through phagocytosis, and their response time is slower than that of lymphocyte-like cells. The expression of genes involved in endocytosis, phagocytosis, and lysosomal and humoral immunity in spherical cells was significantly higher than that in lymphocyte-like cells. These data provide valuable information for understanding the molecular basis of cellular and humoral immunity in A. japonicus.
Collapse
Affiliation(s)
- Kangrong Yu
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, PR China
| | - Xuelin Zhao
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, PR China
| | - Yangxi Xiang
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, PR China.
| | - Chenghua Li
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
| |
Collapse
|
10
|
Radmanić L, Zidovec-Lepej S. The Role of Stem Cell Factor, Epidermal Growth Factor and Angiopoietin-2 in HBV, HCV, HCC and NAFLD. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122072. [PMID: 36556437 PMCID: PMC9786337 DOI: 10.3390/life12122072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Growth factors play a significant role in the immunopathogenesis of liver diseases, especially in liver fibrosis and cirrhosis. They can also play a role in liver regeneration and tissue repair. The regenerative capacity of the liver has been well established. Molecular mechanisms leading to regeneration involve a complex network of diverse molecules. Chronic liver injury leads to the dysregulation of regenerative mechanisms in the liver that, in addition to molecular oncogenesis, lead to uncontrolled cell proliferation and development of hepatocellular carcinoma (HCC). Stem cell factor (SCF), epidermal growth factor (EGF) and Angiopietin-2 (Ang-2) have been shown to be extremely important in the pathogenesis of liver diseases, and given their role in hepatitis B (HBV) or C virus (HCV), HCC and nonalcoholic fatty liver disease (NAFLD), they seem to be potential targets for future research into antifibrotic drugs. The role of SCF receptor c-kit in the liver is debatable, as it has impact on both liver regeneration and liver disease. EGF is a potential indicator of the survival of patients with HCC and can be a biomarker and therapeutic target structure in HCC. Further research is needed to investigate the potential role of Ang-2 for NAFLD associated with liver damage as a non-invasive circulating biomarker.
Collapse
|