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Whately KM, Sengottuvel N, Edatt L, Srivastava S, Woods AT, Tsai YS, Porrello A, Zimmerman MP, Chack AC, Jefferys SR, Yacovone G, Kim DJ, Dudley AC, Amelio AL, Pecot CV. Spon1+ inflammatory monocytes promote collagen remodeling and lung cancer metastasis through lipoprotein receptor 8 signaling. JCI Insight 2024; 9:e168792. [PMID: 38716730 PMCID: PMC11141919 DOI: 10.1172/jci.insight.168792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/21/2024] [Indexed: 05/12/2024] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths in the world, and non-small cell lung cancer (NSCLC) is the most common subset. We previously found that infiltration of tumor inflammatory monocytes (TIMs) into lung squamous carcinoma (LUSC) tumors is associated with increased metastases and poor survival. To further understand how TIMs promote metastases, we compared RNA-Seq profiles of TIMs from several LUSC metastatic models with inflammatory monocytes (IMs) of non-tumor-bearing controls. We identified Spon1 as upregulated in TIMs and found that Spon1 expression in LUSC tumors corresponded with poor survival and enrichment of collagen extracellular matrix signatures. We observed SPON1+ TIMs mediate their effects directly through LRP8 on NSCLC cells, which resulted in TGF-β1 activation and robust production of fibrillar collagens. Using several orthogonal approaches, we demonstrated that SPON1+ TIMs were sufficient to promote NSCLC metastases. Additionally, we found that Spon1 loss in the host, or Lrp8 loss in cancer cells, resulted in a significant decrease of both high-density collagen matrices and metastases. Finally, we confirmed the relevance of the SPON1/LRP8/TGF-β1 axis with collagen production and survival in patients with NSCLC. Taken together, our study describes how SPON1+ TIMs promote collagen remodeling and NSCLC metastases through an LRP8/TGF-β1 signaling axis.
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Affiliation(s)
| | - Nisitha Sengottuvel
- UNC Lineberger Comprehensive Cancer Center and
- Department of Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Lincy Edatt
- UNC Lineberger Comprehensive Cancer Center and
| | - Sonal Srivastava
- Department of Tumor Microenvironment and Metastasis, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Allison T. Woods
- UNC Lineberger Comprehensive Cancer Center and
- Department of Cell Biology and Physiology and
| | - Yihsuan S. Tsai
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Matthew P. Zimmerman
- UNC Lineberger Comprehensive Cancer Center and
- Department of Cell Biology and Physiology and
| | - Aaron C. Chack
- UNC Lineberger Comprehensive Cancer Center and
- Department of Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | | | - Dae Joong Kim
- Department of Microbiology, Immunology, and Cancer Biology and
| | - Andrew C. Dudley
- Department of Microbiology, Immunology, and Cancer Biology and
- UVA Comprehensive Cancer Center, The University of Virginia, Charlottesville, Virginia, USA
| | - Antonio L. Amelio
- Department of Tumor Microenvironment and Metastasis, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
- Department of Head and Neck-Endocrine Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Chad V. Pecot
- UNC Lineberger Comprehensive Cancer Center and
- Division of Oncology and
- RNA Discovery Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Carrillo GL, Su J, Monavarfeshani A, Fox MA. F-spondin Is Essential for Maintaining Circadian Rhythms. Front Neural Circuits 2018; 12:13. [PMID: 29472844 PMCID: PMC5809851 DOI: 10.3389/fncir.2018.00013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/25/2018] [Indexed: 12/19/2022] Open
Abstract
The suprachiasmatic nucleus (SCN) is the master pacemaker that drives circadian behaviors. SCN neurons have intrinsic, self-sustained rhythmicity that is governed by transcription-translation feedback loops. Intrinsic rhythms within the SCN do not match the day-night cycle and are therefore entrained by light-derived cues. Such cues are transmitted to the SCN by a class of intrinsically photosensitive retinal ganglion cells (ipRGCs). In the present study, we sought to identify how axons from ipRGCs target the SCN. While none of the potential targeting cues identified appeared necessary for retinohypothalamic innervation, we unexpectedly identified a novel role for the extracellular matrix protein F-spondin in circadian behavior. In the absence of F-spondin, mice lost their ability to maintain typical intrinsic rhythmicity. Moreover, F-spondin loss results in the displacement of vasoactive intestinal peptide (VIP)-expressing neurons, a class of neurons that are essential for maintaining rhythmicity among SCN neurons. Thus, this study highlights a novel role for F-spondin in maintaining circadian rhythms.
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Affiliation(s)
- Gabriela L. Carrillo
- Developmental and Translational Neurobiology Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
- Graduate Program in Translational Biology, Medicine and Health, Virginia Tech, Blacksburg, VA, United States
| | - Jianmin Su
- Developmental and Translational Neurobiology Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
| | - Aboozar Monavarfeshani
- Developmental and Translational Neurobiology Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Michael A. Fox
- Developmental and Translational Neurobiology Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, United States
- Department of Pediatrics, Virginia Tech Carilion School of Medicine, Roanoke, VA, United States
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Yang T, Williams BO. Low-Density Lipoprotein Receptor-Related Proteins in Skeletal Development and Disease. Physiol Rev 2017; 97:1211-1228. [PMID: 28615463 DOI: 10.1152/physrev.00013.2016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 03/07/2017] [Accepted: 03/15/2017] [Indexed: 02/06/2023] Open
Abstract
The identification of the low-density lipoprotein receptor (LDLR) provided a foundation for subsequent studies in lipoprotein metabolism, receptor-mediated endocytosis, and many other fundamental biological functions. The importance of the LDLR led to numerous studies that identified homologous molecules and ultimately resulted in the description of the LDL-receptor superfamily, a group of proteins that contain domains also found in the LDLR. Subsequent studies have revealed that members of the LDLR-related protein family play roles in regulating many aspects of signal transduction. This review is focused on the roles of selected members of this protein family in skeletal development and disease. We present background on the identification of this subgroup of receptors, discuss the phenotypes associated with alterations in their function in human patients and mouse models, and describe the current efforts to therapeutically target these proteins to treat human skeletal disease.
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Affiliation(s)
- Tao Yang
- Program in Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, Michigan
| | - Bart O Williams
- Program in Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, Michigan
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