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Li C, Zhang M, Du Y, Liu S, Li D, Zhang S, Ji F, Zhang J, Jiao J. Compromised cell competition exhausts neural stem cells pool. Cell Prolif 2024:e13710. [PMID: 39010274 DOI: 10.1111/cpr.13710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/05/2024] [Accepted: 06/22/2024] [Indexed: 07/17/2024] Open
Abstract
Blood vessels play a crucial role in maintaining the stem cell niche in both tumours and developing organs. Cell competition is critical for tumour progression. We hypothesise that blood vessels may act as a regulator of this process. As a pioneer, the secretions of blood vessels regulate the intensity of cell competition, which is essential for tumour invasion and developmental organ extension. Brd4 expresses highly in endothelial cells within various tumours and is positively correlated with numerous invasive genes, making it an ideal focal point for further research on the relationship between blood vessels and cell competition. Our results indicated that the absence of endothelial Brd4 led to a reduction in neural stem cell mortality and compromised cell competition. Endothelial Brd4 regulated cell competition was dependent on Testican2. Testican2 was capable of depositing Sparc and acted as a suppressor of Sparc. Compromised cell competition resulted in the depletion of neural stem cells and accelerated brain ageing. Testican2 could rescue the run-off of neural stem cells and accelerate the turnover rate of neurons. AD patients show compromised cell competition. Through the cloning of a point mutant of Brd4 identified in a subset of AD patients, it was demonstrated that the mutant lacked the ability to promote cell competition. This study suggests a novel approach for treating age-related diseases by enhancing the intensity of cell competition.
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Affiliation(s)
- Chenxiao Li
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, China
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Mengtian Zhang
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Yushan Du
- College of Basic Medicine, Qingdao University, Qingdao, China
| | - Shuang Liu
- Jiaozuo Hospital of Traditional Chinese Medicine, Henan, China
| | - Da Li
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Shukui Zhang
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
| | - Fen Ji
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, China
| | - Jianwei Jiao
- Key Laboratory of Organ Regeneration and Reconstruction, Chinese Academy of Science, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
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Han S, Kim J, Kim SH, Youn W, Kim J, Ji GY, Yang S, Park J, Lee GM, Kim Y, Choi IS. In vitro induction of in vivo-relevant stellate astrocytes in 3D brain-derived, decellularized extracellular matrices. Acta Biomater 2023; 172:218-233. [PMID: 37788738 DOI: 10.1016/j.actbio.2023.09.046] [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: 04/04/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/05/2023]
Abstract
In vitro fabrication of 3D cell culture systems that could provide in vivo tissue-like, structural, and biochemical environments to neural cells is essential not only for fundamental studies on brain function and behavior, but also for tissue engineering and regenerative medicine applicable to neural injury and neurodegenerative diseases. In particular, for astrocytes-which actively respond to the surroundings and exhibit varied morphologies based on stimuli (e.g., stiffness and chemicals) in vitro, as well as physiological or pathological conditions in vivo-it is crucial to establish an appropriate milieu in in vitro culture platforms. Herein, we report the induction of in vivo-relevant, stellate-shaped astrocytes derived from cortices of Rattus norvegicus by constructing the 3D cell culture systems of brain-derived, decellularized extracellular matrices (bdECMs). The bdECM hydrogels were mechanically stable and soft, and the bdECM-based 3D scaffolds supplied biochemically active environments that astrocytes could interact with, leading to the development of in vivo-like stellate structures. In addition to the distinct morphology with actively elongated endfeet, the astrocytes, cultured in 3D bdECM scaffolds, would have neurosupportive characteristics, indicated by the accelerated neurite outgrowth in the astrocyte-conditioned media. Furthermore, next-generation sequencing showed that the gene expression profiles of astrocytes cultured in bdECMs were significantly different from those cultured on 2D surfaces. The stellate-shaped astrocytes in the bdECMs were analyzed to have reached a more mature state, for instance, with decreased expression of genes for scaffold ECMs, actin filaments, and cell division. The results suggest that the bdECM-based 3D culture system offers an advanced platform for culturing primary cortical astrocytes and their mixtures with other neural cells, providing a brain-like, structural and biochemical milieu that promotes the maturity and in vivo-like characteristics of astrocytes in both form and gene expression. STATEMENT OF SIGNIFICANCE: Decellularized extracellular matrices (dECMs) have emerged as strong candidates for the construction of three-dimensional (3D) cell cultures in vitro, owing to the potential to provide native biochemical and physical environments. In this study, we fabricated hydrogels of brain-derived dECMs (bdECMs) and cultured primary astrocytes within the bdECM hydrogels in a 3D context. The cultured astrocytes exhibited a stellate morphology distinct from conventional 2D cultures, featuring tridimensionally elongated endfeet. qRT-PCR and NGS-based transcriptomic analyses revealed gene expression patterns indicative of a more mature state, compared with the 2D culture. Moreover, astrocytes cultured in bdECMs showed neurosupportive characteristics, as demonstrated by the accelerated neurite outgrowth in astrocyte-conditioned media. We believe that the bdECM hydrogel-based culture system can serve as an in vitro model system for astrocytes and their coculture with other neural cells, holding significant potential for neural engineering and therapeutic applications.
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Affiliation(s)
- Sol Han
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Jungnam Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Su Hyun Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, South Korea
| | - Wongu Youn
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Jihoo Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Gil Yong Ji
- Cannabis Medical, Inc., Asan 31418, South Korea
| | - Seoin Yang
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Joohyouck Park
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea
| | - Gyun Min Lee
- Department of Biological Sciences, KAIST, Daejeon 34141, South Korea
| | | | - Insung S Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, South Korea; Department of Bio and Brain Engineering, KAIST, Daejeon 34141, South Korea.
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Solivan-Rivera J, Yang Loureiro Z, DeSouza T, Desai A, Pallat S, Yang Q, Rojas-Rodriguez R, Ziegler R, Skritakis P, Joyce S, Zhong D, Nguyen T, Corvera S. A neurogenic signature involving monoamine Oxidase-A controls human thermogenic adipose tissue development. eLife 2022; 11:e78945. [PMID: 36107478 PMCID: PMC9519151 DOI: 10.7554/elife.78945] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Mechanisms that control 'beige/brite' thermogenic adipose tissue development may be harnessed to improve human metabolic health. To define these mechanisms, we developed a species-hybrid model in which human mesenchymal progenitor cells were used to develop white or thermogenic/beige adipose tissue in mice. The hybrid adipose tissue developed distinctive features of human adipose tissue, such as larger adipocyte size, despite its neurovascular architecture being entirely of murine origin. Thermogenic adipose tissue recruited a denser, qualitatively distinct vascular network, differing in genes mapping to circadian rhythm pathways, and denser sympathetic innervation. The enhanced thermogenic neurovascular network was associated with human adipocyte expression of THBS4, TNC, NTRK3, and SPARCL1, which enhance neurogenesis, and decreased expression of MAOA and ACHE, which control neurotransmitter tone. Systemic inhibition of MAOA, which is present in human but absent in mouse adipocytes, induced browning of human but not mouse adipose tissue, revealing the physiological relevance of this pathway. Our results reveal species-specific cell type dependencies controlling the development of thermogenic adipose tissue and point to human adipocyte MAOA as a potential target for metabolic disease therapy.
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Affiliation(s)
- Javier Solivan-Rivera
- Morningside Graduate School of Biomedical Sciences, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Zinger Yang Loureiro
- Morningside Graduate School of Biomedical Sciences, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Tiffany DeSouza
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Anand Desai
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Sabine Pallat
- Morningside Graduate School of Biomedical Sciences, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Qin Yang
- Morningside Graduate School of Biomedical Sciences, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Raziel Rojas-Rodriguez
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Rachel Ziegler
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Pantos Skritakis
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Shannon Joyce
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Denise Zhong
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
| | - Tammy Nguyen
- Department of Surgery, University of Massachusetts Medical SchoolWorcesterUnited States
- Diabetes Center of Excellence, University of Massachusetts Medical CenterWorcesterUnited States
| | - Silvia Corvera
- Program in Molecular Medicine, University of Massachusetts Medical SchoolWorcesterUnited States
- Diabetes Center of Excellence, University of Massachusetts Medical CenterWorcesterUnited States
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Kang Y, Xue J, Zheng J, Liang J, Cai C, Wang Y. Upregulation of Hevin contributes to postoperative pain hypersensitivity by inducing neurexin1β/neuroligin1-mediated synaptic targeting of GluA1-containing AMPA receptors in rat dorsal horn. Brain Res 2022; 1792:148004. [PMID: 35820448 DOI: 10.1016/j.brainres.2022.148004] [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: 04/20/2022] [Revised: 06/27/2022] [Accepted: 07/06/2022] [Indexed: 11/02/2022]
Abstract
The astrocytes-secreted active molecule, Hevin considerably contributes in the transsynaptic bridge of neurexin1β/neuligin1 in excitatory synapse. Previous studies have demonstrated that activity-dependent synaptic recruitment of spinal neuroligin1 and GluA1-containing AMPA receptors (AMPARs) is involved in incisional, inflammatory and neuropathic pain. Here, we hypothesized that Hevin induced postoperative pain hypersensitivity by enhancing the neurexin1β/neuroligin1-mediated synaptic targeting of GluA1-containing AMPARs in spinal dorsal horns (DH). Our results showed that plantar incision induced significant postoperative pain behavior, which was described by the cumulative pain scores. At 1 d and 3 d post-incision, Hevin expression was considerably elevated in ipsilateral DHs, although it recovered to baseline value at 5 d following the incision. At 1 d post plantar incision, the neurexin1β/neuroligin1 interactions significantly increased in ipsilateral DHs in rats subjected to incision when compared with those in control rats. Intrathecal pretreatments of small interference RNA targeting Hevin substantially suppressed postoperative pain hypersensitivity and reduced the neurexin1β/neurolgin1 interaction as well as the synaptic targeting of GluA1 in ipsilateral spinal DHs. These data suggest that Hevin induced postoperative pain hypersensitivity by enhancing the neurexin1β/neuroligin1 interaction and subsequent synaptic targeting of GluA1-containing AMPARs in ipsilateral spinal DHs. It provides new insights into the role of Hevin-mediated trans-synaptic regulation in postoperative pain hypersensitivity, which would help develop a novel therapeutic strategy.
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Affiliation(s)
- Yi Kang
- Department of Pharmacological Science, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Jianjun Xue
- Department of Anesthesiology, Chinese Traditional Medicine Hospital of Gansu Province, Lanzhou 730050, Gansu, China
| | - Junwei Zheng
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Jinghan Liang
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Chenghui Cai
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Yun Wang
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.
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