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Lichtenberg J, Leonard CE, Sterling HR, Santos Agreda V, Hwang PY. Using Microfluidics to Align Matrix Architecture and Generate Chemokine Gradients Promotes Directional Branching in a Model of Epithelial Morphogenesis. ACS Biomater Sci Eng 2024; 10:4865-4877. [PMID: 39007451 PMCID: PMC11322918 DOI: 10.1021/acsbiomaterials.4c00245] [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: 02/05/2024] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 07/16/2024]
Abstract
The mechanical cue of fiber alignment plays a key role in the development of various tissues in the body. The ability to study the effect of these stimuli in vitro has been limited previously. Here, we present a microfluidic device capable of intrinsically generating aligned fibers using the microchannel geometry. The device also features tunable interstitial fluid flow and the ability to form a morphogen gradient. These aspects allow for the modeling of complex tissues and to differentiate cell response to different stimuli. To demonstrate the abilities of our device, we incorporated luminal epithelial cysts into our device and induced growth factor stimulation. We found the mechanical cue of fiber alignment to play a dominant role in cell elongation and the ability to form protrusions was dependent on cadherin-3. Together, this work serves as a springboard for future potential with these devices to answer questions in developmental biology and complex diseases such as cancers.
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Affiliation(s)
- Jessanne
Y. Lichtenberg
- Department
of Biomedical Engineering, Virginia Commonwealth
University, Richmond, Virginia 23220, United States
| | - Corinne E. Leonard
- Department
of Biomedical Engineering, Virginia Commonwealth
University, Richmond, Virginia 23220, United States
| | - Hazel R. Sterling
- Department
of Biomedical Engineering, Virginia Commonwealth
University, Richmond, Virginia 23220, United States
| | - Valentina Santos Agreda
- Department
of Biomedical Engineering, Virginia Commonwealth
University, Richmond, Virginia 23220, United States
| | - Priscilla Y. Hwang
- Department
of Biomedical Engineering, Virginia Commonwealth
University, Richmond, Virginia 23220, United States
- Massey
Comprehensive Cancer Center, Virginia Commonwealth
University School of Medicine, Richmond, Virginia 23298, United States
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Patrawalla NY, Raj R, Nazar V, Kishore V. Magnetic Alignment of Collagen: Principles, Methods, Applications, and Fiber Alignment Analyses. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:405-422. [PMID: 38019048 DOI: 10.1089/ten.teb.2023.0222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Anisotropically aligned collagen scaffolds mimic the microarchitectural properties of native tissue, possess superior mechanical properties, and provide the essential physicochemical cues to guide cell response. Biofabrication methodologies to align collagen fibers include mechanical, electrical, magnetic, and microfluidic approaches. Magnetic alignment of collagen was first published in 1983 but widespread use of this technique was hindered mainly due to the low diamagnetism of collagen molecules and the need for very strong tesla-order magnetic fields. Over the last decade, there is a renewed interest in the use of magnetic approaches that employ magnetic particles and low-level magnetic fields to align collagen fibers. In this review, the working principle, advantages, and limitations of different collagen alignment techniques with special emphasis on the magnetic alignment approach are detailed. Key findings from studies that employ high-strength magnetic fields and the magnetic particle-based approach to align collagen fibers are highlighted. In addition, the most common qualitative and quantitative image analyses methods to assess collagen alignment are discussed. Finally, current challenges and future directions are presented for further development and clinical translation of magnetically aligned collagen scaffolds.
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Affiliation(s)
- Nashaita Y Patrawalla
- Department of Biomedical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida, USA
| | - Ravi Raj
- Department of Biomedical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida, USA
| | - Vida Nazar
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
| | - Vipuil Kishore
- Department of Chemistry and Chemical Engineering, Florida Institute of Technology, Melbourne, Florida, USA
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3
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Zhang L, Fu L, Zhang G, Hou Y, Ma X, Zhao D, Li W, Dai T, Shu Q, Yan C, Zhao B. Clinico-sero-pathological profiles and risk prediction model of idiopathic inflammatory myopathy (IIM) patients with different perifascicular changes. CNS Neurosci Ther 2024; 30:e14882. [PMID: 39097917 PMCID: PMC11298199 DOI: 10.1111/cns.14882] [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: 01/28/2024] [Revised: 07/08/2024] [Accepted: 07/14/2024] [Indexed: 08/06/2024] Open
Abstract
AIMS To explore the clinico-sero-pathological characteristics and risk prediction model of idiopathic inflammatory myopathy (IIM) patients with different muscular perifascicular (PF) changes. METHODS IIM patients in our center were enrolled and the clinico-sero-pathological data were retrospectively analyzed. A decision tree model was established through machine learning. RESULTS There were 231 IIM patients enrolled, including 53 with perifascicular atrophy (PFA), 39 with perifascicular necrosis (PFN), and 26 with isolated perifascicular enhancement of MHC-I/MHC-II (PF-MHCn). Clinically, PFA patients exhibited skin rashes and dermatomyositis-specific antibodies (DM-MSAs, 74.5%) except for anti-Mi2. PFN patients showed the most severe muscle weakness, highest creatine kinase (CK), anti-Mi2 (56.8%), and anti-Jo-1 (24.3%) antibodies. PF-MHCn patients demonstrated negative MSAs (48.0%) and elevated CK. Histopathologically, MAC predominantly deposited on PF capillaries in PFA but on non-necrotic myofiber in PFN (43.4% and 36.8%, p < 0.001). MxA expression was least in PF-MHCn (36.0% vs. 83.0% vs. 63.2%, p < 0.001). The decision tree model could effectively predict different subgroups, especially PFA and PFN. CONCLUSIONS Three types of PF change of IIMs representing distinct clinico-serological characteristics and pathomechanism. Undiscovered MSAs should be explored especially in PF-MHCn patients. The three pathological features could be accurately predicted through the decision tree model.
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Affiliation(s)
- Lining Zhang
- Department of RheumatologyQilu Hospital of Shandong UniversityJinanShandongChina
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Lijun Fu
- School of FinanceSouthwestern University of Finance and EconomicsChengduChina
| | - Guoyong Zhang
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Ying Hou
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Xiaotian Ma
- Department of Medicine Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of MedicineShandong UniversityQingdaoShandongChina
| | - Dandan Zhao
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Wei Li
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Tingjun Dai
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
| | - Qiang Shu
- Department of RheumatologyQilu Hospital of Shandong UniversityJinanShandongChina
- Shandong Key Laboratory of Medicine and Prevention Integration in Rheumatism and Immunity DiseaseQilu Hospital of Shandong UniversityJinanShandongChina
| | - Chuanzhu Yan
- Department of NeurologyQilu Hospital of Shandong UniversityJinanShandongChina
- Department of Neurology, Qilu Hospital (Qingdao), Cheeloo College of MedicineShandong UniversityQingdaoShandongChina
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu HospitalShandong UniversityJinanShandongChina
- Mitochondrial Medicine Laboratory, Qilu Hospital (Qingdao)Shandong UniversityQingdaoShandongChina
| | - Bing Zhao
- Department of Neurology, Qilu Hospital (Qingdao), Cheeloo College of MedicineShandong UniversityQingdaoShandongChina
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Skedros JG, Dayton MR, Cronin JT, Mears CS, Bloebaum RD, Wang X, Bachus KN. Roles of collagen cross-links and osteon collagen/lamellar morphotypes in equine third metacarpals in tension and compression tests. J Exp Biol 2024; 227:jeb247758. [PMID: 39045755 DOI: 10.1242/jeb.247758] [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: 03/19/2024] [Accepted: 06/18/2024] [Indexed: 07/25/2024]
Abstract
Many bones experience bending, placing one side in net compression and the other in net tension. Because bone mechanical properties are relatively reduced in tension compared with compression, adaptations are needed to reduce fracture risk. Several toughening mechanisms exist in bone, yet little is known of the influences of secondary osteon collagen/lamellar 'morphotypes' and potential interplay with intermolecular collagen cross-links (CCLs) in prevalent/predominant tension- and compression-loaded regions. Paired third metacarpals (MC3s) from 10 adult horses were prepared for mechanical testing. From one MC3/pair, 5 mm cubes were tested in compression at several mid-shaft locations. From contralateral bones, dumbbell-shaped specimens were tested in tension. Hence, habitual/natural tension- and compression-loaded regions were tested in both modes. Data included: elastic modulus, yield and ultimate strength, and energy absorption (toughness). Fragments of tested specimens were examined for predominant collagen fiber orientation (CFO; representing osteonal and non-osteonal bone), osteon morphotype score (MTS, representing osteonal CFO), mineralization, porosity and other histological characteristics. As a consequence of insufficient material from tension-tested specimens, CCLs were only examined in compression-tested specimens (HP, hydroxylysylpyridinoline; LP, lysylpyridinoline; PE, pentosidine). Among CCLs, only LP and HP/LP correlated significantly with mechanical parameters: LP with energy absorption, HP/LP with elastic modulus (both r=0.4). HP/LP showed a trend with energy absorption (r=-0.3, P=0.08). HP/LP more strongly correlated with osteon density and mineralization than CFO or MTS. Predominant CFO more strongly correlated with energy absorption than MTS in both testing modes. In general, CFO was found to be relatively prominent in affecting regional toughness in these equine MC3s in compression and tension.
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Affiliation(s)
- John G Skedros
- University of Utah, Department of Orthopaedics, Salt Lake City, UT 84108, USA
| | - Michael R Dayton
- University of Colorado, Department of Orthopedics, Aurora, CO 80045, USA
| | - John T Cronin
- University of Utah, Department of Orthopaedics, Salt Lake City, UT 84108, USA
| | - Chad S Mears
- University of Utah, Department of Orthopaedics, Salt Lake City, UT 84108, USA
| | - Roy D Bloebaum
- University of Utah, Department of Orthopaedics, Salt Lake City, UT 84108, USA
| | - Xiaodu Wang
- Department of Mechanical Engineering, University of Texas, San Antonio, TX 78249, USA
| | - Kent N Bachus
- University of Utah, Department of Orthopaedics, Salt Lake City, UT 84108, USA
- Research Service, Veterans Affair Medical Center, Salt Lake City, UT 84148, USA
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Dowling P, Gargan S, Zweyer M, Henry M, Meleady P, Swandulla D, Ohlendieck K. Proteomic reference map for sarcopenia research: mass spectrometric identification of key muscle proteins located in the sarcomere, cytoskeleton and the extracellular matrix. Eur J Transl Myol 2024; 34:12564. [PMID: 38787300 PMCID: PMC11264229 DOI: 10.4081/ejtm.2024.12564] [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: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 05/25/2024] Open
Abstract
Sarcopenia of old age is characterized by the progressive loss of skeletal muscle mass and concomitant decrease in contractile strength. Age-related skeletal muscle dysfunctions play a key pathophysiological role in the frailty syndrome and can result in a drastically diminished quality of life in the elderly. Here we have used mass spectrometric analysis of the mouse hindlimb musculature to establish the muscle protein constellation at advanced age of a widely used sarcopenic animal model. Proteomic results were further analyzed by systems bioinformatics of voluntary muscles. In this report, the proteomic survey of aged muscles has focused on the expression patterns of proteins involved in the contraction-relaxation cycle, membrane cytoskeletal maintenance and the formation of the extracellular matrix. This includes proteomic markers of the fast versus slow phenotypes of myosin-containing thick filaments and actin-containing thin filaments, as well as proteins that are associated with the non-sarcomeric cytoskeleton and various matrisomal layers. The bioanalytical usefulness of the newly established reference map was demonstrated by the comparative screening of normal versus dystrophic muscles of old age, and findings were verified by immunoblot analysis.
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Affiliation(s)
- Paul Dowling
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland; Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare.
| | - Stephen Gargan
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland; Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare.
| | - Margit Zweyer
- Department of Neonatology and Paediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany; German Center for Neurodegenerative Diseases, Bonn.
| | - Michael Henry
- National Institute for Cellular Biotechnology, Dublin City University, Dublin.
| | - Paula Meleady
- National Institute for Cellular Biotechnology, Dublin City University, Dublin.
| | - Dieter Swandulla
- Institute of Physiology, Medical Faculty, University of Bonn, Bonn.
| | - Kay Ohlendieck
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland; Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare.
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Hinks A, Patterson MA, Njai BS, Power GA. Age-related blunting of serial sarcomerogenesis and mechanical adaptations following 4 wk of maximal eccentric resistance training. J Appl Physiol (1985) 2024; 136:1209-1225. [PMID: 38511212 DOI: 10.1152/japplphysiol.00041.2024] [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: 01/16/2024] [Revised: 02/26/2024] [Accepted: 03/13/2024] [Indexed: 03/22/2024] Open
Abstract
During aging, muscles undergo atrophy, which is partly accounted for by a loss of sarcomeres in series. Serial sarcomere number (SSN) is associated with aspects of muscle mechanical function including the force-length and force-velocity-power relationships; hence, the age-related loss of SSN contributes to declining performance. Training emphasizing eccentric contractions increases SSN in young healthy rodents; however, the ability for eccentric training to increase SSN in old age is unknown. Ten young (8 mo) and 11 old (32 mo) male Fisher344/BN rats completed 4 wk of unilateral eccentric plantar flexion training. Pre- and posttraining, the plantar flexors were assessed for the torque-frequency, passive torque-angle, and torque-velocity-power relationships. The soleus, lateral gastrocnemius (LG), and medial gastrocnemius (MG) were harvested for SSN assessment via laser diffraction, with the untrained leg used as a control. In the untrained leg/pretraining, old rats had lower SSN in the soleus, LG, and MG, lower maximum torque, power, and shortening velocity, and greater passive torque than young. Young showed increased soleus and MG SSN following training. In contrast, old had no change in soleus SSN and experienced SSN loss in the LG. Pre- to posttraining, young experienced an increase in maximum isometric torque, whereas old had reductions in maximum torque, shortening velocity, and power, and increased passive torque. Our results show that although young muscle has the ability to add sarcomeres in response to maximal eccentric training, this stimulus could be not only ineffective, but also detrimental to aged muscle leading to dysfunctional remodeling.NEW & NOTEWORTHY The loss of sarcomeres in series with age contributes to declining muscle performance. The present study investigated whether eccentric training could improve performance via serial sarcomere addition in old muscle, like in young muscle. Four weeks of maximal eccentric training induced serial sarcomere addition in the young rat plantar flexors and improved in vivo performance, however, led to dysfunctional remodeling accompanied by further impaired performance in old rats.
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Affiliation(s)
- Avery Hinks
- Department of Human Health and Nutritional Sciences, College of Biological SciencesUniversity of GuelphGuelphOntarioCanada
| | - Makenna A Patterson
- Department of Human Health and Nutritional Sciences, College of Biological SciencesUniversity of GuelphGuelphOntarioCanada
| | - Binta S Njai
- Department of Human Health and Nutritional Sciences, College of Biological SciencesUniversity of GuelphGuelphOntarioCanada
| | - Geoffrey A Power
- Department of Human Health and Nutritional Sciences, College of Biological SciencesUniversity of GuelphGuelphOntarioCanada
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7
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Kristensen MA, Rich KK, Mogensen TC, Damsgaard Jensen AM, Fex Svenningsen Å, Zhang M. Focal Traumatic Brain Injury Impairs the Integrity of the Basement Membrane of Hindlimb Muscle Fibers Revealed by Extracellular Matrix Immunoreactivity. Life (Basel) 2024; 14:543. [PMID: 38792565 PMCID: PMC11121831 DOI: 10.3390/life14050543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/27/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
Traumatic brain injury (TBI) stands as a prominent global cause of disability, with motor deficits being a common consequence. Despite its widespread impact, the precise pathological mechanisms underlying motor deficits after TBI remain elusive. In this study, hindlimb postural asymmetry (HL-PA) development in rats subjected to focal TBI was investigated to explore the potential roles of collagen IV and laminin within the extracellular matrix (ECM) of selected hindlimb muscles in the emergence of motor deficits following TBI. A focal TBI was induced by ablating the left sensorimotor cortex in rats and motor deficits were assessed by measuring HL-PA. The expression of laminin and collagen IV in eight selected muscles on each side of the hindlimbs from both TBI- and sham-operated rats were studied using immunohistochemistry and semi-quantitatively analyzed. The results indicated that the TBI rats exhibited HL-PA, characterized by flexion of the contralateral (right) hindlimb. In the sham-operated rats, the immunoreactive components of laminin and collagen IV were evenly and smoothly distributed along the border of the muscle fibers in all the investigated muscles. In contrast, in the TBI rats, the pattern was broken into aggregated, granule-like, immunoreactive components. Such a labeling pattern was detected in all the investigated muscles both from the contra- and ipsilateral sides of the TBI rats. However, in TBI rats, most of the muscles from the contralateral hindlimb showed a significantly increased expression of these two proteins in comparison with those from the ipsilateral hindlimb. In comparison to sham-operated rats, there was a significant increase in laminin and collagen IV expression in various contralateral hindlimb muscles in the TBI rats. These findings suggest potential implications of laminin and collagen IV in the development of motor deficits following a focal TBI.
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Affiliation(s)
- Mette Albæk Kristensen
- Department of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark; (M.A.K.); (K.K.R.); (T.C.M.); (Å.F.S.)
| | - Karen Kalhøj Rich
- Department of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark; (M.A.K.); (K.K.R.); (T.C.M.); (Å.F.S.)
| | - Tobias Christian Mogensen
- Department of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark; (M.A.K.); (K.K.R.); (T.C.M.); (Å.F.S.)
| | | | - Åsa Fex Svenningsen
- Department of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark; (M.A.K.); (K.K.R.); (T.C.M.); (Å.F.S.)
- Brain Research—Inter Disciplinary Guided Excellence (BRIDGE), University of Southern Denmark, DK-5230 Odense, Denmark
| | - Mengliang Zhang
- Department of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark; (M.A.K.); (K.K.R.); (T.C.M.); (Å.F.S.)
- Brain Research—Inter Disciplinary Guided Excellence (BRIDGE), University of Southern Denmark, DK-5230 Odense, Denmark
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8
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Arai M, Kaku M, Thant L, Kitami M, Ono Y, Dobashi A, Iwama H, Mizukoshi M, Kitami K, Matsumoto M, Saito I, Uoshima K. Effect of Sparc knockout on the extracellular matrix of mouse periodontal ligament cells. Biochem Biophys Res Commun 2024; 692:149364. [PMID: 38070276 DOI: 10.1016/j.bbrc.2023.149364] [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: 11/26/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024]
Abstract
The periodontal ligament (PDL) is a critical component in maintaining tooth stability. It is composed of cells and an extracellular matrix (ECM), each with unique roles in tissue function and homeostasis. Secreted protein acidic and rich in cysteine (SPARC), a calcium-binding matricellular glycoprotein, plays a crucial role in regulating ECM assembly and turnover, alongside facilitating cellular-ECM interactions. In the present study, mass spectrometry-based proteomics was used to assess the impacts of Sparc-knockout (KO) on PDL-derived cells. Results demonstrated that Sparc-KO significantly reduces ECM production and alters its composition with increased levels of type I collagen. Despite this increase in Sparc-KO, type I collagen was not likely to be effectively integrated into the fibrils due to collagen cross-linking impairment. Furthermore, the pathway and process enrichment analyses suggested that SPARC plays a protective role against ECM degradation by antagonistically interacting with cell-surface collagen receptors. These findings provide detailed insights into the multifaceted role of SPARC in ECM organization, including its impact on ECM production, collagen regulation, and interactions with various cellular compartments. A better understanding of these complex mechanisms is crucial for comprehending the causes of periodontal disease and tissue regeneration, where precise control of ECM organization is necessary.
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Affiliation(s)
- Moe Arai
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Masaru Kaku
- Division of Bio-prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
| | - Lay Thant
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan; Division of Dental Pharmacology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan; Center for Advanced Oral Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Megumi Kitami
- Division of Dental Pharmacology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan; Center for Advanced Oral Science, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Yoshiki Ono
- Division of Bio-prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Azusa Dobashi
- Division of Bio-prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Hajime Iwama
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Masaru Mizukoshi
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Kohei Kitami
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Masaki Matsumoto
- Department of Omics and Systems Biology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Isao Saito
- Division of Orthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Katsumi Uoshima
- Division of Bio-prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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9
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Chassonnery P, Paupert J, Lorsignol A, Séverac C, Ousset M, Degond P, Casteilla L, Peurichard D. Fibre crosslinking drives the emergence of order in a three-dimensional dynamical network model. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231456. [PMID: 38298399 PMCID: PMC10827420 DOI: 10.1098/rsos.231456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/09/2024] [Indexed: 02/02/2024]
Abstract
The extracellular-matrix (ECM) is a complex interconnected three-dimensional network that provides structural support for the cells and tissues and defines organ architecture as key for their healthy functioning. However, the intimate mechanisms by which ECM acquire their three-dimensional architecture are still largely unknown. In this paper, we study this question by means of a simple three-dimensional individual based model of interacting fibres able to spontaneously crosslink or unlink to each other and align at the crosslinks. We show that such systems are able to spontaneously generate different types of architectures. We provide a thorough analysis of the emerging structures by an exhaustive parametric analysis and the use of appropriate visualization tools and quantifiers in three dimensions. The most striking result is that the emergence of ordered structures can be fully explained by a single emerging variable: the number of links per fibre in the network. If validated on real tissues, this simple variable could become an important putative target to control and predict the structuring of biological tissues, to suggest possible new therapeutic strategies to restore tissue functions after disruption, and to help in the development of collagen-based scaffolds for tissue engineering. Moreover, the model reveals that the emergence of architecture is a spatially homogeneous process following a unique evolutionary path, and highlights the essential role of dynamical crosslinking in tissue structuring.
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Affiliation(s)
- Pauline Chassonnery
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
- Inria Paris, team MAMBA, Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions UMR7598, 75005 Paris, France
| | - Jenny Paupert
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
| | - Anne Lorsignol
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
| | - Childérick Séverac
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
| | - Marielle Ousset
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
| | - Pierre Degond
- Institut de Mathématiques de Toulouse, UMR5219, Université de Toulouse, CNRS, UPS, 31062 Toulouse Cedex 9, France
| | - Louis Casteilla
- RESTORE, Université de Toulouse, Inserm U1031, EFS, INP-ENVT, UPS, CNRS ERL5311, Toulouse, France
| | - Diane Peurichard
- Inria Paris, team MAMBA, Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions UMR7598, 75005 Paris, France
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10
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Nyström A, Schaefer L. An American Journal of Physiology-Cell Physiology for the present and the future. Am J Physiol Cell Physiol 2023; 325:C1155-C1157. [PMID: 37746699 DOI: 10.1152/ajpcell.00455.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Affiliation(s)
- Alexander Nyström
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Liliana Schaefer
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
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