Cell Regen. However, uninjured muscle cells from Limb Girdle Muscular Dystrophy 2B (LGMD2B) patients show increased membrane fluidity, which is associated with their poor membrane repair ability (Sreetama et al., 2018). Lee I-H, Kai H, Carlson L-A, Groves JT, & Hurley JH (2015). Plataki M, Lee YD, Rasmussen DL, & Hubmayr RD (2011). Do Heo W, Inoue T, Park WS, Kim ML, Park BO, Wandless TJ, & Meyer T (2006). The reduction in membrane tension is likely due directly to the addition of phospholipids to reduced lipid packing, as well as due in part to the cytoskeletal remodeling associated with vesicular transport at the plasma membrane. doi: 10.3791/50848. Injury to the plasma membrane also changes the biochemical environment within the cell. Given their ability to traverse away from the site of synthesis (Verweij et al., 2019), the EVs generated during plasma membrane injury may activate both local and distant tissue regeneration responses needed for repair. Spontaneous formation of a self-healing carbon nanoskin at the liquid-liquid interface. Unauthorized use of these marks is strictly prohibited. The observation, that endocytosis may not be required for resealing through the removal of pore-forming toxins but instead acts as a mechanosensor to buffer membrane tension, may also explain how endocytosis participates in the repair of mechanical damage, where no membrane-spanning pores need to be removed. 2022 Dec 14;10(12):3256. doi: 10.3390/biomedicines10123256. Inherent plasticity and microfracture toughening mechanisms work together to prevent antlers from breaking. These membrane invaginations require the presence of caveolin proteins, loss of which can result in poor membrane repair and muscular dystrophy (Gazzerro, Sotgia, Bruno, Lisanti, & Minetti, 2010; Minetti et al., 1998). government site. FOIA This phenomenon may be explained by the kinetic energy imparted on the membrane lipids by mechanical disruption, which can result in lipid mixing without relying on membrane tension (Petersen, Chung, Nayebosadri, & Hansen, 2016). Sealing of transected neurites of rat B104 cells requires a diacylglycerol PKC-dependent pathway and a PKA-dependent pathway, Sezgin, Levental, Mayor, & Eggeling, 2017, Gauthier, Fardin, Roca-Cusachs, & Sheetz, 2011, Miyake, McNeil, Suzuki, Tsunoda, & Sugai, 2001, Skalman, Holst, Larsson, & Lundmark, 2018, Gazzerro, Sotgia, Bruno, Lisanti, & Minetti, 2010, Petersen, Chung, Nayebosadri, & Hansen, 2016, Lee, Kai, Carlson, Groves, & Hurley, 2015, Campelo, Fabrikant, McMahon, & Kozlov, 2010, Lamb, Harper, McKinney, Rzigalinski, & Ellis, 1997, Ligeti, Dagher, Hernandez, Koleske, & Settleman, 2004, Tran, Masedunskas, Weigert, & Ten Hagen, 2015, Godin, Vergen, Prakash, Pagano, & Hubmayr, 2011, Gurtner, Werner, Barrandon, & Longaker, 2008, Taverna, Nanney, Pollins, Sindona, & Caprioli, 2011, Nojima, Freeman, Gulbins, & Lentsch, 2015. Lamb RG, Harper CC, McKinney JS, Rzigalinski BA, & Ellis EF (1997). Lipids also interact with plasma membrane localized proteins to regulate membrane tension and fluidity. Further, the complexity of signaling afforded by lipids allows the cell to coordinate a highly organized response to injury across space and time (Figure 1B). Multiplexed molecular descriptors of pressure ulcers defined by imaging mass spectrometry, Targeting and localized signalling by small GTPases. An official website of the United States government. As she describes, a lesion is followed by a Ca2+-dependent movement of vesicles to the plasma membrane. The role of lipids during plasma membrane repair goes far beyond a passive role in vesicle-mediated delivery of membrane lipids. The signal to activate recruitment of MG53 to injury sites is not clear, but may relate to its role as a ubiquitin ligase to target substrate(s) damaged as a consequence of the membrane injury. Another critical shared feature is a set of highly-specialized teeth. For example, a scallop prevents structural failure from fracture because its shell is comprised of two materials of varying stiffness. Jaiswal JK, Lauritzen SP, Scheffer L, Sakaguchi M, Bunkenborg J, Simon SM, Nylandsted J (2014). The wounded cell can survive if a rapid repair response is mounted that restores boundary integrity. The common eastern firefly produces light through a chemical reaction that energizes a molecule so it can release aphoton. Cholesterol and various proteins are also embedded within the . Such a role of CLIC/GEEC-mediated endocytosis in membrane remodeling is also supported by the observation that CLIC/GEEC is immediately activated in response to decreased membrane tension and has the capacity to turn over large amounts of plasma membrane (Thottacherry et al., 2018). Membrane injury causes a local influx of calcium and activation of calpains. Middel V, Zhou L, Takamiya M, Beil T, Shahid M, Roostalu U, Nienhaus GU (2016). Membrane-stabilizing copolymers confer marked protection to dystrophic skeletal muscle in vivo, Molecular Therapy-Methods & Clinical Development. Calcium has been identified as the key trigger to activate an effective membrane repair response that utilizes exocytosis and endocytosis to repair a membrane tear, or remove a membrane pore. Bethesda, MD 20894, Web Policies However, excessive force applied to the membrane can result in physical damage, such as the shear force applied on the endothelial cells by blood flow, on muscle cells during contraction, on lung alveolar cells during breathing, or by a blunt force trauma to any cell (Cong, Hubmayr, Li, & Zhao, 2017; Demonbreun & McNally, 2016; McNeil & Steinhardt, 2003). In this review, we have discussed how lipids working at the individual as well as at the population level facilitate the proper orchestration of the repair response. government site. Honeybee immune systems depend more on protein diversity thanquantity. Use the force: membrane tension as an organizer of cell shape and motility. The radiation could pass through the cell without damaging the DNA. The site is secure. With their calcium and lipid affinities spanning a wide spectrum, annexins accumulate slightly differently from each other at the site of injury and perform different functions to facilitate repair of the wounded plasma membrane (see Section 4.1). Failure of injured cells to repair results in cell death and activates a tissue repair response. Microfluidic guillotine reveals multiple timescales and mechanical modes of wound response in Stentor coeruleus. Transient change in lipid mobility can have many effects on plasma membrane function related to both structure and signaling, and deciphering which of these are beneficial for repair requires further studies. calcium, which when constantly increased, induces apoptosis. Copyright 2017, American Association for the Advancement of Science. Healing of a punctured Xenopus oocyte, where the dark, The regeneration and reorganization of the oral apparatus (green) of Stentor coeruleus ., Wound healing studies in model cells such as Xenopus oocytes and muscle cells, Evidence that oral regeneration in Stentor can be triggered by the loss of, MeSH ASM activity at the plasma membrane has been shown to facilitate microvesicle shedding (Bianco et al., 2009). Neurite transection produces cytosolic oxidation, which enhances plasmalemmal repair. Saarikangas J, Zhao H, & Lappalainen P (2010). Lenhart KC, ONeill TJ, Cheng Z, Dee R, Demonbreun AR, Li J, Taylor JM (2015). Bianco F, Perrotta C, Novellino L, Francolini M, Riganti L, Menna E, Clementi E. (2009). Repeated eccentric exercise in healthy subjects (i.e., stepping down for 20 min) is known to induce damage so severe that muscle fibers degenerate over the following days and weeks (91, 131, 199). (B) Phospholipid biosynthesis depends on multiple inputs from metabolism (glycerol-3-phosphate) and extracellular import (choline and ethanolamine). Accessibility Water is essential to life. Cell before mitosis showing the location of the centrioles, microtubules, nuclear membrane, nucleolus, and DNA (Let's Talk Science using an image by Aldona via iStockphoto). Visualizing cytoplasmic flow during single-cell wound healing in Stentor coeruleus. EVs are known to be generated in response to plasma membrane injury of single cells, and this is required for successful repair (Jimenez et al., 2014; Scheffer et al., 2014). Cells as part of multicellular systems rarely act alone, instead having ways to signal to start and complete simple to quite complex interactions. Quantification of membrane tension after injury to fibroblasts demonstrated that a minimum tension force was reached by approximately 30 seconds post-injury, but tension was fully restored by 80 seconds post-injury (Togo et al., 2000). Another endogenous mechanism of acutely decreasing membrane lipid mobility after injury involves the lipid species ceramide, the formation of which causes endocytosis in response to membrane injury through the activity of extracellular acid sphingomyelinase (Tam et al., 2010). Phospholipids can switch the GTPase substrate preference of a GTPase-activating protein, Ceramide selectively displaces cholesterol from ordered lipid domains (rafts) implications for lipid raft structure and function. See this image and copyright information in PMC. Formation of these outward budding vesicles at the plasma membrane is associated with an increase in cytosolic calcium and oxidation, as well as the disruption of the actin cytoskeletonplasma membrane interface (Pollet, Conrard, Cloos, & Tyteca, 2018), and each of these occurs locally in the immediate aftermath of membrane injury (Andrews et al., 2014; Horn & Jaiswal, 2018). Cell membrane repair repurposes mechanisms from various cellular functions, including vesicle trafficking, exocytosis, and endocytosis, to mend the broken membrane. As lipids comprise the bulk of the plasma membrane, the acts of injury, resealing, and remodeling all directly impinge upon the plasma membrane lipids. High force impact or stress can cause materials that comprise living systems to separate into two or more pieces (called fracturing) or to break or burst suddenly (called rupturing). When . However, shear force on the membrane increases the kinetic energy required for lipid mixing (i.e. Houang EM, Sham YY, Bates FS, & Metzger JM (2018). While it is unclear whether caveolae can provide structural assistance to the damaged membrane in the context of a large membrane injury (as opposed to sub-injury threshold stress, (Sinha et al., 2011)), caveolae may still provide a signaling function during the repair process. Blauch LR, Gai Y, Khor JW, Sood P, Marshall WF, Tang SKY. Activated calpains cleave dysferlin within a motif specifically encoded by alternately spliced exon 40a (230). This Goldilocks principle applies to several aspects of lipid involvement in the repair process. Instead, there exists distinct inter- and intra-leaflet heterogeneity of lipids. This signaling function may occur due to the activity of the repair protein EHD2, which accumulates at the site of membrane injury and is thought to play a role in shaping membrane dynamics (Daumke et al., 2007; Demonbreun et al., 2016; Marg et al., 2012). Similar to PS, DAG directly binds proteins to provide its signaling function; however, because it is generated de novo after injury, an additional temporal component to signaling is achieved. . The MG53 binding protein PTRF (cavin-1) binds cholesterol in response to membrane injury (Zhu et al., 2012). Evidence suggests these pores are removed both by endosomal degradative pathways (123, 164, 280) and exosomal shedding (14, 118, 136). Each of these provides another mechanism for generating specific membrane lipids acutely in parallel to biosynthetic inputs. Further, PE and PC head groups can be cleaved and replaced with serine to produce PS (Oropeza, 2017). The poor repair of these patient cells can be mirrored in healthy cells by increasing their membrane lipid mobility through the removal of cholesterol or by addition of a glucocorticoid (prednisone) (Heier et al., 2013; Sreetama et al., 2018). The https:// ensures that you are connecting to the These cells cooperate with other specialized cells and become the building blocks of large multicellular . Cholesterol modulates cell signaling and protein networking by specifically interacting with PDZ domain-containing scaffold proteins. These lipids also exist at the boundary of lipid-ordered domains, such as lipid rafts, indicating that GTPases are targeted to these regions where protein accumulation at the membrane is common (Moissoglu et al., 2014), increasing their relative signaling capacity. The fatty membranes of cells are capable of self-repair using a mechanism that involves calcium-dependent exocytosis. See this image and copyright information in PMC. This allows for the movement and patterning of lipids into signaling domains, changing the spatial arrangement of proteins that selectively interact with a particular lipid species. Phospholipids and sphingolipids are connected by the head group choline, found on both PC and sphingomyelin (SM). Collectively, these changes enable lipids to initiate/regulate local signaling allowing precise spatial and temporal control over downstream plasma membrane repair pathways.

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