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Messelodi D, Strocchi S, Bertuccio SN, Baden P, Indio V, Giorgi FM, Taddia A, Serravalle S, Valente S, di Fonzo A, Frattini E, Bernardoni R, Pession A, Grifoni D, Deleidi M, Astolfi A, Pession A. Neuronopathic Gaucher disease models reveal defects in cell growth promoted by Hippo pathway activation. Commun Biol 2023; 6:431. [PMID: 37076591 PMCID: PMC10115838 DOI: 10.1038/s42003-023-04813-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 04/05/2023] [Indexed: 04/21/2023] Open
Abstract
Gaucher Disease (GD), the most common lysosomal disorder, arises from mutations in the GBA1 gene and is characterized by a wide spectrum of phenotypes, ranging from mild hematological and visceral involvement to severe neurological disease. Neuronopathic patients display dramatic neuronal loss and increased neuroinflammation, whose molecular basis are still unclear. Using a combination of Drosophila dGBA1b loss-of-function models and GD patient-derived iPSCs differentiated towards neuronal precursors and mature neurons we showed that different GD- tissues and neuronal cells display an impairment of growth mechanisms with an increased cell death and reduced proliferation. These phenotypes are coupled with the downregulation of several Hippo transcriptional targets, mainly involved in cells and tissue growth, and YAP exclusion from nuclei. Interestingly, Hippo knock-down in the GBA-KO flies rescues the proliferative defect, suggesting that targeting the Hippo pathway can be a promising therapeutic approach to neuronopathic GD.
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Affiliation(s)
- Daria Messelodi
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Silvia Strocchi
- Laboratory of Translational Research, USL-IRCCS of Reggio Emilia, 42123, Reggio Emilia, Italy
| | | | - Pascale Baden
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, 72076, Germany
- Hertie Institut for Clinical Brain Research, University of Tübingen, 72076, Tübingen, Germany
| | - Valentina Indio
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia (BO), Italy
| | - Federico M Giorgi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Alberto Taddia
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Salvatore Serravalle
- Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138, Bologna, Italy
| | - Sabrina Valente
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Alessio di Fonzo
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Emanuele Frattini
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Roberto Bernardoni
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | | | - Daniela Grifoni
- Department of Life, Health and Environmental Sciences (MeSVA), University of L'Aquila, 67100, L'Aquila, Italy.
| | - Michela Deleidi
- Hertie Institut for Clinical Brain Research, University of Tübingen, 72076, Tübingen, Germany
- Institut Imagine, INSERM UMR1163, 75015, Paris, France
| | - Annalisa Astolfi
- Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Andrea Pession
- Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138, Bologna, Italy
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Dronc-independent basal executioner caspase activity sustains Drosophila imaginal tissue growth. Proc Natl Acad Sci U S A 2019; 116:20539-20544. [PMID: 31548372 PMCID: PMC6789915 DOI: 10.1073/pnas.1904647116] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Caspase is the enzyme involved in cell death, and its activation via the apoptosome is thought to represent irreversible cellular destruction. Furthermore, accumulating evidence suggests increasingly diverse functions of caspase beyond apoptosis. Here, using Drosophila wing as a model, we reveal that the specific executioner caspases, Dcp-1 and Decay, promote, rather than suppress by inducing apoptosis, tissue growth. These executioner caspases act independently of initiator caspase Dronc and apoptosis. We further show that the caspase-mediated cleavage of Acinus is important for sustaining tissue growth. Our research highlights the importance of executioner caspase-mediated basal proteolytic cleavage of substrates during tissue growth, and the findings hint at the original function of caspase—not apoptosis, but basal proteolytic cleavages for cell vigor. Caspase is best known as an enzyme involved in programmed cell death, which is conserved among multicellular organisms. In addition to its role in cell death, caspase is emerging as an indispensable enzyme in a wide range of cellular functions, which have recently been termed caspase-dependent nonlethal cellular processes (CDPs). In this study, we examined the involvement of cell death signaling in tissue-size determination using Drosophila wing as a model. We found that the Drosophila executioner caspases Dcp-1 and Decay, but not Drice, promoted wing growth independently of apoptosis. Most of the reports on CDPs argue the importance of the spatiotemporal regulation of the initiator caspase, Dronc; however, this sublethal caspase function was independent of Dronc, suggesting a more diverse array of CDP regulatory mechanisms. Tagging of TurboID, an improved promiscuous biotin ligase that biotinylates neighboring proteins, to the C terminus of caspases revealed the differences among the neighbors of executioner caspases. Furthermore, we found that the cleavage of Acinus, a substrate of the executioner caspase, was important in promoting wing growth. These results demonstrate the importance of executioner caspase-mediated basal proteolytic cleavage of substrates in sustaining tissue growth. Given the existence of caspase-like DEVDase activity in a unicellular alga, our results likely highlight the original function of caspase—not cell death, but basal proteolytic cleavages for cell vigor.
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Trotta V, Duran Prieto J, Battaglia D, Fanti P. Plastic responses of some life history traits and cellular components of body size inAphidius ervias related to the age of its hostAcyrthosiphon pisum. Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Vincenzo Trotta
- Dipartimento di Scienze; Università della Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Juliana Duran Prieto
- Dipartimento di Scienze; Università della Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Donatella Battaglia
- Dipartimento di Scienze; Università della Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Paolo Fanti
- Dipartimento di Scienze; Università della Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
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Breuker CJ, Patterson JS, Klingenberg CP. A single basis for developmental buffering of Drosophila wing shape. PLoS One 2006; 1:e7. [PMID: 17183701 PMCID: PMC1762351 DOI: 10.1371/journal.pone.0000007] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2006] [Accepted: 09/07/2006] [Indexed: 11/19/2022] Open
Abstract
The nature of developmental buffering processes has been debated extensively, based on both theoretical reasoning and empirical studies. In particular, controversy has focused on the question of whether distinct processes are responsible for canalization, the buffering against environmental or genetic variation, and for developmental stability, the buffering against random variation intrinsic in developmental processes. Here, we address this question for the size and shape of Drosophila melanogaster wings in an experimental design with extensively replicated and fully controlled genotypes. The amounts of variation among individuals and of fluctuating asymmetry differ markedly among genotypes, demonstrating a clear genetic basis for size and shape variability. For wing shape, there is a high correlation between the amounts of variation among individuals and fluctuating asymmetry, which indicates a correspondence between the two types of buffering. Likewise, the multivariate patterns of shape variation among individuals and of fluctuating asymmetry show a close association. For wing size, however, the amounts of individual variation and fluctuating asymmetry are not correlated. There was a significant link between the amounts of variation between wing size and shape, more so for fluctuating asymmetry than for variation among individuals. Overall, these experiments indicate a considerable degree of shared control of individual variation and fluctuating asymmetry, although it appears to differ between traits.
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Willmore KE, Zelditch ML, Young N, Ah-Seng A, Lozanoff S, Hallgrímsson B. Canalization and developmental stability in the Brachyrrhine mouse. J Anat 2006; 208:361-72. [PMID: 16533318 PMCID: PMC2100242 DOI: 10.1111/j.1469-7580.2006.00527.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2005] [Indexed: 11/29/2022] Open
Abstract
The semi-dominant Br mutation affects presphenoid growth, producing the facial retrognathism and globular neurocranial vault that characterize heterozygotes. We analysed the impact of this mutation on skull shape, comparing heterozygotes to wildtype mice, to determine if the effects are skull-wide or confined to the sphenoid region targeted by the mutation. In addition, we examined patterns of variability of shape for the skull as a whole and for three regions (basicranium, face and neurocranium). We found that the Br mice differed significantly from wildtype mice in skull shape in all three regions as well as in the shape of the skull as a whole. However, the significant increases in variance and fluctuating asymmetry were found only in the basicranium of mutant mice. These results suggest that the mutation has a significant effect on the underlying developmental architecture of the skull, which produces an increase in phenotypic variability that is localized to the anatomical region in which the mean phenotype is most dramatically affected. These results suggest that the same developmental mechanisms that produce the change in phenotypic mean also produce the change in variance.
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Affiliation(s)
| | | | - Nathan Young
- Department of Cell Biology and Anatomy, University of CalgaryAlberta, Canada
| | - Andrew Ah-Seng
- Bachelor of Health Sciences, University of CalgaryAlberta, Canada
| | - Scott Lozanoff
- Department of Anatomy and Reproductive Biology, University of Hawaii at Manoa, John A Burns School of MedicineHonolulu, Hawaii
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Hallgrímsson B, Brown JJY, Ford-Hutchinson AF, Sheets HD, Zelditch ML, Jirik FR. The brachymorph mouse and the developmental-genetic basis for canalization and morphological integration. Evol Dev 2006; 8:61-73. [PMID: 16409383 DOI: 10.1111/j.1525-142x.2006.05075.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Although it is well known that many mutations influence phenotypic variability as well as the mean, the underlying mechanisms for variability effects are very poorly understood. The brachymorph (bm) phenotype results from an autosomal recessive mutation in the phosphoadenosine-phosphosulfate synthetase 2 gene (Papps2). A major cranial manifestation is a dramatic reduction in the growth of the chondrocranium which results from undersulfation of glycosaminoglycans (GAGs) in the cartilage matrix. We found that this reduction in the growth of the chondrocranium is associated with an altered pattern of craniofacial shape variation, a significant increase in phenotypic variance and a dramatic increase in morphological integration for craniofacial shape. Both effects are largest in the basicranium. The altered variation pattern indicates that the mutation produces developmental influences on shape that are not present in the wildtype. As the mutation dramatically reduces sulfation of GAGs, we infer that this influence is variation among individuals in the degree of sulfation, or variable expressivity of the mutation. This variation may be because of genetic variation at other loci that influence sulfation, environmental effects, or intrinsic effects. We infer that chondrocranial development exhibits greater sensitivity to variation in the sulfation of chondroitin sulfate when the degree of sulfation is low. At normal levels, sulfation probably contributes minimally to phenotypic variation. This case illustrates canalization in a particular developmental-genetic context.
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Affiliation(s)
- Benedikt Hallgrímsson
- Department of Cell Biology & Anatomy and the Joint Injury and Arthritis Research Group, University of Calgary, 3330 Hospital Dr., Calgary, AB, Canada T2N 4N1.
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