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Ren J, Huang P, Wang F. IGSF8 is a potential target for the treatment of gliomas. Asian J Surg 2024; 47:3883-3891. [PMID: 38453613 DOI: 10.1016/j.asjsur.2024.02.118] [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: 11/28/2023] [Revised: 02/14/2024] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Immunoglobulin superfamily member 8, or IGSF8, is a member of the recently identified immunoglobulin family of proteins. It is mostly produced on cell membranes and has a unique transmembrane structure. It has recently been demonstrated that there is a strong correlation between the expression variation of IGSF8 and the growth of gliomas. Therefore, we used data from the TCGA and CGGA databases to evaluate the function of IGSF8. METHODS The TCGA and GTEx data sets' RNA-seq data were utilized to examine IGSF8 expression. The Gene Cards database was utilized to get IGSF8 protein data. The Cluster Profiler data package was used to carry out the IGSF8 enrichment study. The GO and KEGG databases were used to examine the relationship between IGSF8 and cellular physiological and biochemical processes. The TCGA immune cell infiltration scores were obtained from online databases and published studies. Clinical survival data from TCGA and CGGA were used to investigate the predictive significance of IGSF8. RESULTS TGGA revealed that the majority of cancers had differential expression of IGSF8. IGSF8 was discovered to be enriched in numerous significant pathways in tumor cells by GO and KEGG. Moreover, a strong correlation was seen between the expression of IGSF8 and the immunomodulatory interactions that occur between non-lymphocytes and lymphocytes. T-cell infiltration, immunological checkpoints, immune-activating and immune-suppressive genes, chemokines, and chemokine receptors were all strongly correlated with IGSF8 expression. Lastly, the TCGA and CGGA databases showed a strong correlation between IGSF8 and the grade and prognosis of gliomas. CONCLUSION According to our findings, IGSF8 may be a glioma marker. In order to control the immunological microenvironment, IGSF8 may cooperate with a number of immune checkpoints. This information may be utilized to create novel targeted immunotherapy medications.
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Affiliation(s)
- Jiaxing Ren
- Inner Mongolia Medical University Affiliated Hospital, Inner Mongolia, China.
| | - Ping Huang
- Inner Mongolia Medical University Affiliated Hospital, Inner Mongolia, China.
| | - Fei Wang
- Inner Mongolia Medical University Affiliated Hospital, Inner Mongolia, China.
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Zhao K, Wu C, Li X, Niu M, Wu D, Cui X, Zhao H. From mechanism to therapy: the journey of CD24 in cancer. Front Immunol 2024; 15:1401528. [PMID: 38881902 PMCID: PMC11176514 DOI: 10.3389/fimmu.2024.1401528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/25/2024] [Indexed: 06/18/2024] Open
Abstract
CD24 is a glycosylphosphatidylinositol-anchored protein that is expressed in a wide range of tissues and cell types. It is involved in a variety of physiological and pathological processes, including cell adhesion, migration, differentiation, and apoptosis. Additionally, CD24 has been studied extensively in the context of cancer, where it has been found to play a role in tumor growth, invasion, and metastasis. In recent years, there has been growing interest in CD24 as a potential therapeutic target for cancer treatment. This review summarizes the current knowledge of CD24, including its structure, function, and its role in cancer. Finally, we provide insights into potential clinical application of CD24 and discuss possible approaches for the development of targeted cancer therapies.
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Affiliation(s)
- Kai Zhao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Caifeng Wu
- Department of Hand and Foot, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiangjun Li
- Department of Breast Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mengchao Niu
- Department of Operation Room, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dan Wu
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaofeng Cui
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hai Zhao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
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Iqbal J, Zhang K, Jin N, Zhao Y, Liu X, Liu Q, Ni J, Shen L. Alzheimer's Disease Is Responsible for Progressive Age-Dependent Differential Expression of Various Protein Cascades in Retina of Mice. ACS Chem Neurosci 2019; 10:2418-2433. [PMID: 30695639 DOI: 10.1021/acschemneuro.8b00710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease associated with cognitive impairments and memory loss usually in aged people. In the past few years, it has been detected in the eye retina, manifesting the systematic spread of the disease. This might be used for biomarker discovery for early detection and treatment of the disease. Here, we have described the proteomic alterations in retina of 2, 4, and 6 months old 3×Tg-AD mice by using iTRAQ (isobaric tags for relative and absolute quantification) proteomics technology. Out of the total identified proteins, 121 (71 up- and 50 down-regulated), 79 (51 up- and 28 down-regulated), and 153 (37 up- and 116 down-regulated) significantly differentially expressed proteins (DEPs) are found in 2, 4, and 6 month's mice retina (2, 4, and 6 M), respectively. Seventeen DEPs are found common in these three groups with consistent expression behavior or opposite expression in the three groups. Bioinformatics analysis of these DEPs highlighted their involvement in vital AD-related biological phenomenon. To further prompt the results, four proteins from 2 M group, three from 4 M, and four from 6 M age groups are successfully validated with Western blot analysis. This study confirms the retinal involvement of AD in the form of proteomic differences and further explains the protein-based molecular mechanisms, which might be a step toward biomarker discovery for early detection and treatment of the disease.
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Affiliation(s)
- Javed Iqbal
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Kaoyuan Zhang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
- Department of Dermatology, Peking University Shenzhen Hospital, Guangdong 518036, China
| | - Na Jin
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yuxi Zhao
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Xukun Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Qiong Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jiazuan Ni
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Liming Shen
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
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Bai QR, Dong L, Hao Y, Chen X, Shen Q. Metabolic glycan labeling-assisted discovery of cell-surface markers for primary neural stem and progenitor cells. Chem Commun (Camb) 2018; 54:5486-5489. [PMID: 29756626 DOI: 10.1039/c8cc01535j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A chemical approach was developed for identifying cell-surface markers for primary neural stem cells (NSCs). Using an in vitro coculture system of primary NSCs combined with metabolic labeling of sialoglycans with bioorthogonal functional groups, we selectively enriched and identified a list of cell-surface sialoglycoproteins that were more abundantly expressed in neural stem and progenitor cells.
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Affiliation(s)
- Qing-Ran Bai
- PTN Graduate Program, School of Life Sciences, Tsinghua University, Beijing 100084, China
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IgSF8: a developmentally and functionally regulated cell adhesion molecule in olfactory sensory neuron axons and synapses. Mol Cell Neurosci 2012; 50:238-49. [PMID: 22687584 DOI: 10.1016/j.mcn.2012.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 05/10/2012] [Accepted: 05/28/2012] [Indexed: 01/08/2023] Open
Abstract
Here, we investigated an Immunoglobulin (Ig) superfamily protein IgSF8 which is abundantly expressed in olfactory sensory neuron (OSN) axons and their developing synapses. We demonstrate that expression of IgSF8 within synaptic neuropil is transitory, limited to the period of glomerular formation. Glomerular expression decreases after synaptic maturation and compartmental glomerular organization is achieved, although expression is maintained at high levels within the olfactory nerve layer (ONL). Immunoprecipitations indicate that IgSF8 interacts with tetraspanin CD9 in the olfactory bulb (OB). CD9 is a component of tetraspanin-enriched microdomains (TEMs), specialized microdomains of the plasma membrane known to regulate cell morphology, motility, invasion, fusion and signaling, in both the nervous and immune systems, as well as in tumors. In vitro, both IgSF8 and CD9 localize to puncta within axons and growth cones of OSNs, consistent with TEM localization. When the olfactory epithelium (OE) was lesioned, forcing OSN regeneration en masse, IgSF8 was once again able to be detected in OSN axon terminals as synapses were reestablished. Finally, we halted synaptic maturation within glomeruli by unilaterally blocking functional activity and found that IgSF8 did not undergo exclusion from this subcellular compartment and instead continued to be detected in adult glomeruli. These data support the hypothesis that IgSF8 facilitates OSN synapse formation.
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Martins-de-Souza D, Guest PC, Mann DM, Roeber S, Rahmoune H, Bauder C, Kretzschmar H, Volk B, Baborie A, Bahn S. Proteomic analysis identifies dysfunction in cellular transport, energy, and protein metabolism in different brain regions of atypical frontotemporal lobar degeneration. J Proteome Res 2012; 11:2533-43. [PMID: 22360420 DOI: 10.1021/pr2012279] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Frontotemporal lobar degeneration (FTLD) is an umbrella term for a heterogeneous group of young-onset dementias of uncertain prevalence and incidence worldwide. Atypical cases of FTLD with fused in sarcoma inclusions (aFTLD-U) have been described recently, but their molecular characterization is still due. Using shotgun mass spectrometry, we identified a total of 107 differentially expressed proteins in the prefrontal cortex, cerebellum and occipital lobe from aFTLD-U patients compared to controls. These proteins are involved in a range of biological pathways such as cellular transport in the prefrontal cortex, energy metabolism in the cerebellum, and protein metabolism in the occipital lobe. In addition, they were validated by selective reaction monitoring (SRM). Comparison of the aFTLD-U proteomic findings with similar studies of Alzheimer's disease and schizophrenia led to identification of proteins that may be related to dementias and psychoses, respectively. Further studies of aFTLD-U and other FTLD subtypes are warranted, although this will require intensive biobanking efforts.
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Affiliation(s)
- Daniel Martins-de-Souza
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
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Expression of the IgSF protein Kirre in the rat central nervous system. Life Sci 2011; 88:590-7. [DOI: 10.1016/j.lfs.2011.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Revised: 12/17/2010] [Accepted: 01/14/2011] [Indexed: 11/23/2022]
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Glioblastoma inhibition by cell surface immunoglobulin protein EWI-2, in vitro and in vivo. Neoplasia 2009; 11:77-86, 4p following 86. [PMID: 19107234 DOI: 10.1593/neo.81180] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Revised: 10/22/2008] [Accepted: 10/23/2008] [Indexed: 01/28/2023] Open
Abstract
EWI-2, a cell surface IgSF protein, is highly expressed in normal human brain but is considerably diminished in glioblastoma tumors and cell lines. Moreover, loss of EWI-2 expression correlated with a shorter survival time in human glioma patients, suggesting that EWI-2 might be a natural inhibitor of glioblastoma. In support of this idea, EWI-2 expression significantly impaired both ectopic and orthotopic tumor growth in nude mice in vivo. In vitro assays provided clues regarding EWI-2 functions. Expression of EWI-2 in T98G and/or U87-MG malignant glioblastoma cell lines failed to alter two-dimensional cell proliferation but inhibited glioblastoma colony formation in soft agar and caused diminished cell motility and invasion. At the biochemical level, EWI-2 markedly affects the organization of four molecules (tetraspanin proteins CD9 and CD81 and matrix metalloproteinases MMP-2 and MT1-MMP), which play key roles in the biology of astrocytes and gliomas. EWI-2 causes CD9 and CD81 to become more associated with each other, whereas CD81 and other tetraspanins become less associated with MMP-2 and MT1-MMP. We propose that EWI-2 inhibition of glioblastoma growth in vivo is at least partly explained by the capability of EWI-2 to inhibit growth and/or invasion in vitro. Underlying these functional effects, EWI-2 causes a substantial molecular reorganization of multiple molecules (CD81, CD9, MMP-2, and MT1-MMP) known to affect proliferation and/or invasion of astrocytes and/or glioblastomas.
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