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Muller C, Ardouin L, Fournier A, Gaisne E, Leroy M, Bellemère P. Pyrocarbon interposition implant after lunate resection in Kienböck's disease: A case series. Hand Surg Rehabil 2023; 42:34-39. [PMID: 36336267 DOI: 10.1016/j.hansur.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/22/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
Abstract
In advanced stages of Kienböck's disease, the lunate is no longer conservable. One of the surgical options is to resect the lunate and replace it with a prosthesis. The procedure consisted in lunate resection and interposition of a free APSI® or Pi2® pyrocarbon implant through a dorsal approach. Follow-up was clinical and radiological on QuickDASH and PRWE scores. At a median follow-up of 3 years, 12 patients were reviewed, with a median age of 56 years. Flexion significantly decreased from 42° to 28° (p < 0.01). Extension and pronation-supination were conserved. Strength was 94% compared to the opposite side, with no significant difference from the preoperative measurement. Median QuickDASH and PRWE scores were 15.9 and 23.5 respectively and had significantly improved. One patient underwent scaphocapitate fusion because she was still in pain; the other patients were pain-free. No patients had to change jobs because of their wrist. Radiographically, there was no carpal collapse and carpal height was conserved. Radioscaphoid angle and ulnar translation were stable. There was 1 case of asymptomatic implant dislocation. Interposition of a pyrocarbon implant after lunate resection in advanced Kienböck's disease is a motion-conserving procedure that provides pain relief and functional recovery in the short and medium term. LEVEL OF EVIDENCE: IV.
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Affiliation(s)
- C Muller
- Department of Hand Surgery, Plastic and Reconstructive Surgery, Centre Chirurgical Émile Gallé, CHU Nancy, 49 Rue Hermite, 54000 Nancy, France.
| | - L Ardouin
- Institut de la Main Nantes Atlantique, Boulevard Charles-Gautier, Saint-Herblain, France
| | - A Fournier
- Institut de la Main Nantes Atlantique, Boulevard Charles-Gautier, Saint-Herblain, France
| | - E Gaisne
- Institut de la Main Nantes Atlantique, Boulevard Charles-Gautier, Saint-Herblain, France
| | - M Leroy
- Institut de la Main Nantes Atlantique, Boulevard Charles-Gautier, Saint-Herblain, France
| | - P Bellemère
- Institut de la Main Nantes Atlantique, Boulevard Charles-Gautier, Saint-Herblain, France
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Ardouin L, Lecoq FA, Verstreken F, Vanmierlo B, Erhard L, Locquet V, Barnouin L, Bosc J, Obert L. Nerve regeneration conduit from inverted human umbilical cord vessel in the treatment of proper palmar digital nerve sections. Hand Surg Rehabil 2022; 41:675-680. [PMID: 36210047 DOI: 10.1016/j.hansur.2022.09.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022]
Abstract
Treatment of digital nerve injuries, particularly in case of a gap, is challenging. Recovery of finger sensitivity is often incomplete and can impair personal and occupational activity. The need for better nerve regeneration has given rise to alternative treatments such as nerve conduits. This study aimed to evaluate the safety and efficacy of a conduit of freeze-dried inverted human umbilical cord vessel for regeneration in digital nerve section. Twenty-three patients with a mean nerve gap of 6.11 mm (range 2-30 mm and static 2-point discrimination (s2PD) > 15 mm underwent surgical repair of digital nerve section using a nerve regeneration conduit. The primary endpoint was recovery of sensitivity after conduit implantation. Secondary endpoints comprised progression of pain, functional symptoms, pressure threshold, hand-specific symptoms and disabilities, and restored innervation. Mean follow-up was 10.1 ± 4.1 months (range 1-14 months). Sensitivity recovered progressively in the months following implantation. There was a mean decrease of 8.54 mm in s2PD between baseline and last follow-up (p < 0.001). Complete innervation recovered in 83.3% of cases at last follow-up. Pressure threshold and hand-related quality of life improved significantly and symptoms due to nerve sectioning (pain, cold intolerance, hypoesthesia, hyperesthesia) resolved almost completely. There were no safety issues related to the nerve conduit. These results indicate that freeze-dried inverted human umbilical vessels can be a safe and effective option as conduit for digital nerve regeneration.
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Affiliation(s)
- L Ardouin
- Institut de la Main Nantes-Atlantique, Elsan Santé Atlantique, AV Claude Bernard, 44800 Saint Herblain, France
| | - F-A Lecoq
- Institut de la Main Nantes-Atlantique, Elsan Santé Atlantique, AV Claude Bernard, 44800 Saint Herblain, France
| | - F Verstreken
- AZ Monica, Florent Pauwelslei 1, 2100 Antwerp, Belgium
| | - B Vanmierlo
- AZ Delta, Deltalaan 1, 8800 Roeselare, Belgium
| | - L Erhard
- Institut Chirurgical de la Main et du Membre Supérieur, 17 Av. Condorcet, 69100 Villeurbanne, France
| | - V Locquet
- Institut Chirurgical de la Main et du Membre Supérieur, 17 Av. Condorcet, 69100 Villeurbanne, France
| | - L Barnouin
- Tissue Bank of France (TBF), 6 rue d'Italie, 69780 Mions, France.
| | - J Bosc
- Tissue Bank of France (TBF), 6 rue d'Italie, 69780 Mions, France
| | - L Obert
- CHU de Besançon Hôpital Jean Minjoz, 3 Bd. Alexandre Fleming, 25000 Besançon, France
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Métairie F, Bellemère P, Ardouin L, Bouju Y, Leroy M. Radiological and functional correlation following "SLIC" scapholunate-intercarpal ligamentoplasty at minimum 12 months' follow-up. Hand Surg Rehabil 2022; 41:599-605. [PMID: 35988914 DOI: 10.1016/j.hansur.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/03/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
We report outcomes for scapholunate-intercarpal ligamentoplasty ("SLIC procedure"), performed in 22 patients (mean age at surgery, 39.7 years), for reducible static scapholunate (SL) instability without repairable stump. Patients were evaluated for pain and active wrist range of motion, grip strength, functional scores (QuickDASH and PRWE) and radiological appearance (SL gap, SL angle, radiolunate angle, capitolunate angle), preoperatively and at a mean 28.3 months' follow-up (range 12-65). A CT scan without injection was performed at follow-up to measure the posterior radioscaphoid angle (PRSA). The objective was to assess radiological-functional correlations after SLIC ligamentoplasty and to analyze postoperative PRSA correction. The hypothesis was that correcting the PRSA improves clinical and functional outcomes. Pain on a visual analog scale improved significantly, from 2.7 to 0.7 at rest and from 7 to 3.2 during hand use. Mean wrist flexion was 46.4° and extension 59.1°. Grip strength reached 82.8% of the contralateral value. Functional scores improved significantly. Mean SL angle decreased significantly from 81.1° to 73.5°, and static scapholunate gap from 4.7 mm to 3.6 mm. Scaphoid subluxation was fully corrected in 15 cases (68%). PRSA angle was significantly corrected, from a mean 112.7° to 104.2°. Patients in whom PRSA was corrected showed a tendency for better clinical and subjective outcomes. There was 1 case of scaphoid necrosis, 7 of recurrent static instability, including 3 early at 4 months, 3 of scaphocapitate osteoarthritis, and 5 of carpal collapse with SLAC wrist. There were no significant correlations between clinical and radiological results in the medium term after SL ligamentoplasty by the SLIC procedure. The results were quite good in the medium term and pointed to the importance of correcting rotatory subluxation of the scaphoid, revealed by the PRSA, more than correcting the scapholunate gap.
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Affiliation(s)
- F Métairie
- Institut de la Main Nantes Atlantique, Avenue Claude Bernard, 44800 St Herblain, France.
| | - P Bellemère
- Institut de la Main Nantes Atlantique, Avenue Claude Bernard, 44800 St Herblain, France
| | - L Ardouin
- Institut de la Main Nantes Atlantique, Avenue Claude Bernard, 44800 St Herblain, France
| | - Y Bouju
- Institut de la Main Nantes Atlantique, Avenue Claude Bernard, 44800 St Herblain, France
| | - M Leroy
- Institut de la Main Nantes Atlantique, Avenue Claude Bernard, 44800 St Herblain, France
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Gerace E, Royaux D, Gaisne E, Ardouin L, Bellemère P. Pyrocardan® implant arthroplasty for trapeziometacarpal osteoarthritis with a minimum follow-up of 5 years. Hand Surgery and Rehabilitation 2020; 39:528-538. [DOI: 10.1016/j.hansur.2020.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/28/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
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Saveanu L, Zucchetti AE, Evnouchidou I, Ardouin L, Hivroz C. Is there a place and role for endocyticTCRsignaling? Immunol Rev 2019; 291:57-74. [DOI: 10.1111/imr.12764] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Loredana Saveanu
- National French Institute of Health and Medical Research (INSERM) 1149 Center of Research on Inflammation Paris France
- National French Center of Scientific Research (CNRS) ERL8252 Paris France
- Laboratory of Inflamex Excellency Faculty of Medicine Xavier Bichat Site Paris France
- Paris Diderot UniversitySorbonne Paris Cité Paris France
| | - Andres E. Zucchetti
- Institut Curie PSL Research UniversityINSERMU932 “Integrative analysis of T cell activation” team Paris France
| | - Irini Evnouchidou
- National French Institute of Health and Medical Research (INSERM) 1149 Center of Research on Inflammation Paris France
- National French Center of Scientific Research (CNRS) ERL8252 Paris France
- Laboratory of Inflamex Excellency Faculty of Medicine Xavier Bichat Site Paris France
- Paris Diderot UniversitySorbonne Paris Cité Paris France
- Inovarion Paris France
| | - Laurence Ardouin
- Institut Curie PSL Research UniversityINSERMU932 “Integrative analysis of T cell activation” team Paris France
| | - Claire Hivroz
- Institut Curie PSL Research UniversityINSERMU932 “Integrative analysis of T cell activation” team Paris France
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Ardouin L, Luche H, Chelbi R, Carpentier S, Shawket A, Montanana Sanchis F, Santa Maria C, Grenot P, Alexandre Y, Grégoire C, Fries A, Vu Manh TP, Tamoutounour S, Crozat K, Tomasello E, Jorquera A, Fossum E, Bogen B, Azukizawa H, Bajenoff M, Henri S, Dalod M, Malissen B. Broad and Largely Concordant Molecular Changes Characterize Tolerogenic and Immunogenic Dendritic Cell Maturation in Thymus and Periphery. Immunity 2017; 45:305-18. [PMID: 27533013 DOI: 10.1016/j.immuni.2016.07.019] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 02/29/2016] [Accepted: 05/25/2016] [Indexed: 12/22/2022]
Abstract
Dendritic cells (DCs) are instrumental in the initiation of T cell responses, but how thymic and peripheral tolerogenic DCs differ globally from Toll-like receptor (TLR)-induced immunogenic DCs remains unclear. Here, we show that thymic XCR1(+) DCs undergo a high rate of maturation, accompanied by profound gene-expression changes that are essential for central tolerance and also happen in germ-free mice. Those changes largely overlap those occurring during tolerogenic and, more unexpectedly, TLR-induced maturation of peripheral XCR1(+) DCs, arguing against the commonly held view that tolerogenic DCs undergo incomplete maturation. Interferon-stimulated gene (ISG) expression was among the few discriminators of immunogenic and tolerogenic XCR1(+) DCs. Tolerogenic XCR1(+) thymic DCs were, however, unique in expressing ISGs known to restrain virus replication. Therefore, a broad functional convergence characterizes tolerogenic and immunogenic XCR1(+) DC maturation in the thymus and periphery, maximizing antigen presentation and signal delivery to developing and to conventional and regulatory mature T cells.
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Affiliation(s)
- Laurence Ardouin
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Hervé Luche
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France; Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Rabie Chelbi
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | | | - Alaa Shawket
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Frédéric Montanana Sanchis
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Camille Santa Maria
- Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Pierre Grenot
- Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Yannick Alexandre
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Claude Grégoire
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Anissa Fries
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Thien-Phong Vu Manh
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Samira Tamoutounour
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Karine Crozat
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Elena Tomasello
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Audrey Jorquera
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Even Fossum
- Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway
| | - Bjarne Bogen
- Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway
| | | | - Marc Bajenoff
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Sandrine Henri
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Marc Dalod
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France.
| | - Bernard Malissen
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France; Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France.
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7
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Abstract
In T lymphocytes, the immune synapse is an active zone of vesicular traffic. Directional transport of vesicular receptors and signaling molecules from or to the immune synapse has been shown to play an important role in T-cell receptor (TCR) signal transduction. However, how vesicular trafficking is regulating the activation of T cells is still a burning question, and the characterization of these intracellular compartments remains the first step to understand this process. We describe herein a protocol, which combines a separation of membranes on flotation gradient with an affinity purification of Strep-tagged fusion transmembrane proteins with Strep-Tactin® resin, allowing the purification of membranes containing the Strep-tagged molecule of interest. By keeping the membranes intact, this protocol leads to the purification of molecules physically associated with the Strep-tagged protein as well as of molecules present in the same membrane compartment: transmembrane proteins, proteins strongly associated with the membranes, and luminal proteins. The example shown herein is the purification of membrane compartment prepared from T lymphocytes expressing LAT fused to a Strep-tag.
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Affiliation(s)
- Claire Hivroz
- Section Recherche, Institut Curie, INSERM U932, 26 Rue d'Ulm, 75248, Paris, Cedex 05, France
- PSL Research University, Paris, France
- Immunity and Cancer, INSERM U932, Paris, France
| | - Paola Larghi
- University of Milan, Milan, Italy
- Istituto Nazionale Genetica Molecolare 'Romeo ed Enrica Invernizzi', INGM, Milan, Italy
| | - Mabel Jouve
- Section Recherche, Institut Curie, INSERM U932, 26 Rue d'Ulm, 75248, Paris, Cedex 05, France
- PSL Research University, Paris, France
- Immunity and Cancer, INSERM U932, Paris, France
| | - Laurence Ardouin
- Section Recherche, Institut Curie, INSERM U932, 26 Rue d'Ulm, 75248, Paris, Cedex 05, France.
- PSL Research University, Paris, France.
- Immunity and Cancer, INSERM U932, Paris, France.
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Agout C, Ardouin L, Bellemère P. A ten-year prospective outcome study of Pi2 pyrocarbon spacer arthroplasty in carpometacarpal joint osteoarthritis. Hand Surgery and Rehabilitation 2016; 35:255-261. [DOI: 10.1016/j.hansur.2016.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/13/2016] [Accepted: 05/20/2016] [Indexed: 10/21/2022]
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De Keating-Hart E, Touchais S, Kerjean Y, Ardouin L, Le Goff B. Presence of an intracompartmental septum detected by ultrasound is associated with the failure of ultrasound-guided steroid injection in de Quervain's syndrome. J Hand Surg Eur Vol 2016; 41:212-9. [PMID: 26497593 DOI: 10.1177/1753193415611414] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 05/14/2015] [Indexed: 02/03/2023]
Abstract
UNLABELLED The purpose of this study was to find clinical or ultrasound characteristics that might predict the failure of conservative treatment in de Quervain's syndrome. A total of 42 ultrasound-guided injections have been performed in 41 patients after clinical and ultrasound examination. Patients were immobilized for 3 weeks with a spica splint cast, and clinically evaluated at 3 and 6 weeks and by phone call at the end of the study. Ultrasound showed a septum between the tendons of the first comportment in 34% of the wrists. At last follow-up (mean 15.6 months after the injection) ten patients (24%) had undergone surgery. When comparing ultrasound and clinical characteristics of the operated and non-operated wrists, we found that patients with a high baseline visual analogue scale, with all positive clinical tests and with a persistent intracompartmental septum, had a significantly higher risk of failure following conservative treatment. LEVEL OF EVIDENCE III.
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Affiliation(s)
- E De Keating-Hart
- Orthopaedic Surgery Department, University Hospital Hôtel Dieu, Nantes, France
| | - S Touchais
- Orthopaedic Surgery Department, University Hospital Hôtel Dieu, Nantes, France
| | - Y Kerjean
- Hand Surgery Unit, Jeanne d'Arc, Nantes, France
| | - L Ardouin
- Hand Surgery Unit, Jeanne d'Arc, Nantes, France
| | - B Le Goff
- Rheumatology Department, University Hospital Hôtel Dieu, Nantes, France
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Le Corre A, Ardouin L, Loubersac T, Gaisne E, Bellemère P. Retrospective study of two fixation methods for 4-corner fusion: Shape-memory staple vs. dorsal circular plate. ACTA ACUST UNITED AC 2015; 34:300-6. [DOI: 10.1016/j.main.2015.08.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 06/09/2015] [Accepted: 08/12/2015] [Indexed: 12/21/2022]
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Ameline T, Bégot V, Ardouin L, Hulet C, Hanouz N. Arthrodesis of thumb interphalangeal and finger distal interphalangeal joints using the intramedullary X-Fuse(®) implant: Retrospective analysis of 38 cases. ACTA ACUST UNITED AC 2015; 34:67-72. [PMID: 25771025 DOI: 10.1016/j.main.2015.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/21/2014] [Accepted: 01/13/2015] [Indexed: 10/23/2022]
Abstract
Various indications exist for thumb interphalangeal and finger distal interphalangeal arthrodesis. Various fixation techniques (compression screws, tension band wiring, K-wires) have been described with fusion rates varying between 80 and 100%. The objective of this study was to evaluate the outcomes of interphalangeal arthrodesis using the X-Fuse(®) intramedullary implant in terms of fusion rate and fusion position. A continuous series of 38 arthrodesis procedures was reviewed retrospectively to determine the fusion rate and evaluate complications linked to this fixation technique. The position of the fused joint was compared to that obtained at the end of the procedure so as to evaluate the reliability of implant placement. The fusion rate was 94.8%; two arthrodeses had to be redone with satisfactory results. A moderate change of less than 10 degrees in the arthrodesis position between the immediate postoperative period and fusion was observed in the frontal and sagittal planes that had no clinical consequences. The fusion rate reported here is similar to the best rates published with other fusion techniques, and few complications occurred. Use of this intramedullary implant seems to be a viable alternative to the other techniques.
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Affiliation(s)
- T Ameline
- Département d'orthopédie-traumatologie, avenue Côte-de-Nacre, 14033 Caen cedex, France; Comete Inserm U 1075, UCBN EA 3917, France.
| | - V Bégot
- Département d'orthopédie-traumatologie, avenue Côte-de-Nacre, 14033 Caen cedex, France; Comete Inserm U 1075, UCBN EA 3917, France
| | - L Ardouin
- Clinique Jeanne-d'Arc, 21, rue des Martyrs, 44100 Nantes, France
| | - C Hulet
- Département d'orthopédie-traumatologie, avenue Côte-de-Nacre, 14033 Caen cedex, France; Comete Inserm U 1075, UCBN EA 3917, France
| | - N Hanouz
- Département d'orthopédie-traumatologie, avenue Côte-de-Nacre, 14033 Caen cedex, France; Comete Inserm U 1075, UCBN EA 3917, France
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Bellemère P, Ardouin L. [Primary flexor tendons repair in zone 2]. ACTA ACUST UNITED AC 2014; 33 Suppl:S28-43. [PMID: 25442406 DOI: 10.1016/j.main.2014.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/13/2014] [Accepted: 07/19/2014] [Indexed: 11/29/2022]
Abstract
Primary flexor tendon repair is still challenging even in the most experienced hands. With atraumatic surgery, the goal is to suture the tendon in a way that it will be strong enough to allow for tendon gliding without the risk of rupture or adhesions during the 12 weeks needed for the tendon to heal. After reviewing the zone 2 anatomy, the authors describe the state of art for flexor tendon repair along with their personal preferences. Although suture methods and postoperative rehabilitation programs are not universal, most specialized teams now use multistrand suturing techniques with at least 4 stands along with protected and controlled early active mobilization. Although the published rates of failure of the repair or postoperative adhesions with stiffness have decreased, these complications are still a concern. They will continue to pose a challenge for scientists performing research into the mechanics and biology of flexor tendon repairs, especially in zone 2.
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Ardouin L, Lecoq FA, Le Nen D, Herrou P. An ultrasound diagnostic aid in hand surgery: Observation on a supernumerary muscle in the wrist. ACTA ACUST UNITED AC 2014; 33:401-3. [DOI: 10.1016/j.main.2014.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 08/14/2014] [Accepted: 10/01/2014] [Indexed: 10/24/2022]
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14
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Vernet E, Gaisne E, Kerjean Y, Loubersac T, Ardouin L, Bellemere P. Étude prospective des reprises d’échec de trapézectomies par implant en pyrocarbone : 13 cas à plus de 4ans de recul. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.main.2013.10.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Tamoutounour S, Guilliams M, Montanana Sanchis F, Liu H, Terhorst D, Malosse C, Pollet E, Ardouin L, Luche H, Sanchez C, Dalod M, Malissen B, Henri S. Origins and functional specialization of macrophages and of conventional and monocyte-derived dendritic cells in mouse skin. Immunity 2013; 39:925-38. [PMID: 24184057 DOI: 10.1016/j.immuni.2013.10.004] [Citation(s) in RCA: 564] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 10/03/2013] [Indexed: 12/23/2022]
Abstract
In the skin, the lack of markers permitting the unambiguous identification of macrophages and of conventional and monocyte-derived dendritic cells (DCs) complicates understanding of their contribution to skin integrity and to immune responses. By combining CD64 and CCR2 staining, we successfully identified each of these cell types and studied their origin, transcriptomic signatures, and migratory and T cell stimulatory properties. We also analyzed the impact of microbiota on their development and their contribution to skin inflammation during contact hypersensitivity. Dermal macrophages had a unique scavenging role and were unable to migrate and activate T cells. Conventional dermal DCs excelled both at migrating and activating T cells. In the steady-state dermis, monocyte-derived DCs are continuously generated by extravasated Ly-6C(hi) monocytes. Their T cell stimulatory capacity combined with their poor migratory ability made them particularly suited to activate skin-tropic T cells. Therefore, a high degree of functional specialization occurs among the mononuclear phagocytes of the skin.
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Affiliation(s)
- Samira Tamoutounour
- Centre d'Immunologie de Marseille-Luminy (CIML), UM2 Aix-Marseille Université, 13288 Marseille Cedex 9, France; INSERM U1104, 13288 Marseille Cedex 9, France; CNRS UMR7280, 13288 Marseille Cedex 9, France
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16
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Ardouin L, Racca MG, Garcia-Elias M. [Relationship between midcarpal inclination angle and scaphoid kinematic]. Chir Main 2012; 31:138-141. [PMID: 22704790 DOI: 10.1016/j.main.2012.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 02/11/2012] [Accepted: 04/16/2012] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To investigate if there is a correlation between the so-called midcarpal inclination angle and the kinematic behavior of the scaphoid. PATIENTS AND METHODS The population studied was 60 patients with postero-anterior radiographs of the wrist in full radial and ulnar deviation. Each patient was assessed for the type of lunate by two independent observers. For each pair of radiographs the Midcarpal Inclination Angle and the Scaphoid Flexion Index (SFI) was determined. RESULTS Twenty-three cases were classified as lunate type I, 19 cases as type II. The average midcarpal inclination angle was 55.2° (SD±6.1) for wrists with a lunate type I and 63.8° (DE±6.3) for type II (p<0.0001). There was a significant linear relationship between the midcarpal inclination angle and the Scaphoid Flexion Index (p=0.02). CONCLUSIONS The wrists with a midcarpal inclination angle greater than 60° (type II lunate) had a scaphoid rotating according to a "columnar pattern", during radioulnar inclinations (predominant rotation along the sagittal plane), while the wrists with a lunate type I behave according to a "row pattern".
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Affiliation(s)
- L Ardouin
- Institut Kaplan, Passeig de la Bonanova, n(o) 9, 2-2, 08022 Barcelone, Espagne.
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17
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Langlet C, Tamoutounour S, Henri S, Luche H, Ardouin L, Grégoire C, Malissen B, Guilliams M. CD64 expression distinguishes monocyte-derived and conventional dendritic cells and reveals their distinct role during intramuscular immunization. J Immunol 2012; 188:1751-60. [PMID: 22262658 DOI: 10.4049/jimmunol.1102744] [Citation(s) in RCA: 199] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although most vaccines are administered i.m., little is known about the dendritic cells (DCs) that are present within skeletal muscles. In this article, we show that expression of CD64, the high-affinity IgG receptor FcγRI, distinguishes conventional DCs from monocyte-derived DCs (Mo-DCs). By using such a discriminatory marker, we defined the distinct DC subsets that reside in skeletal muscles and identified their migratory counterparts in draining lymph nodes (LNs). We further used this capability to analyze the functional specialization that exists among muscle DCs. After i.m. administration of Ag adsorbed to alum, we showed that alum-injected muscles contained large numbers of conventional DCs that belong to the CD8α(+)- and CD11b(+)-type DCs. Both conventional DC types were capable of capturing Ag and of migrating to draining LNs, where they efficiently activated naive T cells. In alum-injected muscles, Mo-DCs were as numerous as conventional DCs, but only a small fraction migrated to draining LNs. Therefore, alum by itself poorly induces Mo-DCs to migrate to draining LNs. We showed that addition of small amounts of LPS to alum enhanced Mo-DC migration. Considering that migratory Mo-DCs had, on a per cell basis, a higher capacity to induce IFN-γ-producing T cells than conventional DCs, the addition of LPS to alum enhanced the overall immunogenicity of Ags presented by muscle-derived DCs. Therefore, a full understanding of the role of adjuvants during i.m. vaccination needs to take into account the heterogeneous migratory and functional behavior of muscle DCs and Mo-DCs revealed in this study.
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Affiliation(s)
- Christelle Langlet
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Case 906, 13288 Marseille Cedex 9, France
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18
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Crozat K, Tamoutounour S, Vu Manh TP, Fossum E, Luche H, Ardouin L, Guilliams M, Azukizawa H, Bogen B, Malissen B, Henri S, Dalod M. Cutting edge: expression of XCR1 defines mouse lymphoid-tissue resident and migratory dendritic cells of the CD8α+ type. J Immunol 2011; 187:4411-5. [PMID: 21948982 DOI: 10.4049/jimmunol.1101717] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Subsets of dendritic cells (DCs) have been described according to their functions and anatomical locations. Conventional DC subsets are defined by reciprocal expression of CD11b and CD8α in lymphoid tissues (LT), and of CD11b and CD103 in non-LT (NLT). Spleen CD8α(+) and dermal CD103(+) DCs share a high efficiency for Ag cross-presentation and a developmental dependency on specific transcription factors. However, it is not known whether all NLT-derived CD103(+) DCs and LT-resident CD8α(+) DCs are similar despite their different anatomical locations. XCR1 was previously described as exclusively expressed on mouse spleen CD8α(+) DCs and human blood BDCA3(+) DCs. In this article, we showed that LT-resident CD8α(+) DCs and NLT-derived CD103(+) DCs specifically express XCR1 and are characterized by a unique transcriptional fingerprint, irrespective of their tissue of origin. Therefore, CD8α(+) DCs and CD103(+) DCs belong to a common DC subset which is unequivocally identified by XCR1 expression throughout the body.
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Affiliation(s)
- Karine Crozat
- Centre d'Immunologie Marseille-Luminy, Université de la Méditerranée, 13288 Marseille, France.
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Luche H, Ardouin L, Teo P, See P, Henri S, Merad M, Ginhoux F, Malissen B. The earliest intrathymic precursors of CD8α(+) thymic dendritic cells correspond to myeloid-type double-negative 1c cells. Eur J Immunol 2011; 41:2165-75. [PMID: 21630253 DOI: 10.1002/eji.201141728] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 05/20/2011] [Accepted: 05/26/2011] [Indexed: 12/16/2022]
Abstract
The dendritic cells (DCs) present in lymphoid and non-lymphoid organs are generated from progenitors with myeloid-restricted potential. However, in the thymus a major subset of DCs expressing CD8α and langerin (CD207) appears to stand apart from all other DCs in that it is thought to derive from progenitors with lymphoid potential. Using mice expressing a fluorescent reporter and a diphtheria toxin receptor under the control of the cd207 gene, we demonstrated that CD207(+) CD8α(+) thymic DCs do not share a common origin with T cells but originate from intrathymic precursors that express markers that are normally present on all (CD11c(+) and MHCII molecules) or on some (CD207, CD135, CD8α, CX3CR1) DC subsets. Those intrathymic myeloid-type precursors correspond to CD44(+) CD25(-) double-negative 1c (DN1c) cells and are continuously renewed from bone marrow-derived canonical DC precursors. In conclusion, our results demonstrate that the earliest intrathymic precursors of CD8α(+) thymic DCs correspond to myeloid-type DN1c cells and support the view that under physiological conditions myeloid-restricted progenitors generate the whole constellation of DCs present in the body including the thymus.
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Affiliation(s)
- Hervé Luche
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Marseille, France
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20
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Guilliams M, Henri S, Tamoutounour S, Ardouin L, Schwartz-Cornil I, Dalod M, Malissen B. Cover Picture: Eur. J. Immunol. 8/10. Eur J Immunol 2010. [DOI: 10.1002/eji.201090044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Guilliams M, Henri S, Tamoutounour S, Ardouin L, Schwartz-Cornil I, Dalod M, Malissen B. From skin dendritic cells to a simplified classification of human and mouse dendritic cell subsets. Eur J Immunol 2010; 40:2089-94. [DOI: 10.1002/eji.201040498] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Henri S, Poulin LF, Tamoutounour S, Ardouin L, Guilliams M, de Bovis B, Devilard E, Viret C, Azukizawa H, Kissenpfennig A, Malissen B. CD207+ CD103+ dermal dendritic cells cross-present keratinocyte-derived antigens irrespective of the presence of Langerhans cells. ACTA ACUST UNITED AC 2009; 207:189-206. [PMID: 20038600 PMCID: PMC2812532 DOI: 10.1084/jem.20091964] [Citation(s) in RCA: 323] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Recent studies have challenged the view that Langerhans cells (LCs) constitute the exclusive antigen-presenting cells of the skin and suggest that the dermal dendritic cell (DDC) network is exceedingly complex. Using knockin mice to track and ablate DCs expressing langerin (CD207), we discovered that the dermis contains five distinct DC subsets and identified their migratory counterparts in draining lymph nodes. Based on this refined classification, we demonstrated that the quantitatively minor CD207+ CD103+ DDC subset is endowed with the unique capability of cross-presenting antigens expressed by keratinocytes irrespective of the presence of LCs. We further showed that Y-Ae, an antibody that is widely used to monitor the formation of complexes involving I-Ab molecules and a peptide derived from the I-E alpha chain, recognizes mature skin DCs that express I-Ab molecules in the absence of I-E alpha. Knowledge of this extra reactivity is important because it could be, and already has been, mistakenly interpreted to support the view that antigen transfer can occur between LCs and DDCs. Collectively, these data revisit the transfer of antigen that occurs between keratinocytes and the five distinguishable skin DC subsets and stress the high degree of functional specialization that exists among them.
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Affiliation(s)
- Sandrine Henri
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Case 906, 13288 Marseille Cedex 9, France
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23
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Dubrana F, Lecerf G, Nguyen-Khanh JP, Menard R, Ardouin L, Gibon Y, Pidhorz L, Falaise V, Coipeau P, Burdin P, Rouvillain JL, Navarre T, Garron E, Daoud W, Louboutin H, Moineau G, Wessely L, Stindel E, Debarge R, Lustig S, Lavoie F, Neyret P. Ostéotomie tibiale de valgisation. ACTA ACUST UNITED AC 2008; 94:S2-21. [DOI: 10.1016/j.rco.2008.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Prinz I, Sansoni A, Kissenpfennig A, Ardouin L, Malissen M, Malissen B. Visualization of the earliest steps of γδ T cell development in the adult thymus. Nat Immunol 2006; 7:995-1003. [PMID: 16878135 DOI: 10.1038/ni1371] [Citation(s) in RCA: 156] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 07/06/2006] [Indexed: 01/15/2023]
Abstract
The checkpoint in gammadelta cell development that controls successful T cell receptor (TCR) gene rearrangements remains poorly characterized. Using mice expressing a reporter gene 'knocked into' the Tcrd constant region gene, we have characterized many of the events that mark the life of early gammadelta cells in the adult thymus. We identify the developmental stage during which the Tcrd locus 'opens' in early T cell progenitors and show that a single checkpoint controls gammadelta cell development during the penultimate CD4- CD8- stage. Passage through this checkpoint required the assembly of gammadelta TCR heterodimers on the cell surface and signaling via the Lat adaptor protein. In addition, we show that gammadelta selection triggered a phase of sustained proliferation similar to that induced by the pre-TCR.
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Affiliation(s)
- Immo Prinz
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Case 906, Institut National de la Santé et de la Recherche Médicale, U631, Marseille, France
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25
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Ardouin L, Rolink AG, Mura AM, Gommeaux J, Melchers F, Busslinger M, Malissen M, Malissen B. Rapidin vivo analysis of mutant forms of the LAT adaptor usingPax5-Lat double-deficient pro-B?cells. Eur J Immunol 2005; 35:977-86. [PMID: 15719364 DOI: 10.1002/eji.200425836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Following injection into recombinase-activating gene-deficient (Rag1(-/-)) mice, pro-B cells lacking the Pax5 transcription factor (Pax5(-/-)) develop into most major hematopoietic lineages, with the notable exception of B cells. We assessed whether Pax5(-/-) pro-B cells that were also rendered deficient for the linker for activation of T cells (LAT), an adaptor essential for T cell receptor signaling, can be used for the rapid in vivo analysis of mutant forms of LAT. We showed that Pax5(-/-) Lat(-/-) pro-B cell lines can be infected with recombinant retroviruses expressing a LAT cDNA and sorted for the expression of LAT. When injected into Rag1(-/-) mice, they restore normal intrathymic T cell development and give rise to functional peripheral T cells. Considering that the handling of Pax5(-/-) pro-B cell lines is easier than that of bone marrow hematopoietic precursors, we used them for the rapid functional analysis of a novel Lat allelic series. When compared to knock-in and transgenic approaches, a major advantage of our Pax5(-/-) pro-B cell-based experimental approach consists in the production of mice bearing a given mutation within 2-3 months. Therefore, it constitutes a powerful first-line screen for mutations worth fastidious knock-in approaches.
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Affiliation(s)
- Laurence Ardouin
- Centre d'Immunologie de Marseille-Luminy, INSERM, CNRS, Université de la Méditerranée, Marseille, France
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26
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Abstract
Vav1 is a 95-kDa protein expressed in all hemopoietic cells that becomes rapidly tyrosine phosphorylated following T cell antigen receptor (TCR) stimulation. Vav1 contains multiple domains characteristic of signal transducing proteins, including a Dbl homology domain, a hallmark of a guanine nucleotide exchange factor (GEF) for Rho-family GTPases. Indeed Vav1 is a GEF for Rac1, Rac2 and RhoG, and it is activated following tyrosine phosphorylation. Generation of mice deficient in Vav1 has shown that it plays an important role in selection events within the thymus, including both positive and negative selection, consistent with Vav1 transducing TCR signals required to drive these processes. Furthermore, Vav1-deficient T cells are defective in TCR-induced proliferation and cytokine synthesis. Analysis of TCR signaling pathways in Vav1-deficient T cells and thymocytes has shown that Vav1 is required to transduce signals to the activation of a calcium flux, extracellular signal-regulated kinase (ERK) and the nuclear factor kappaB (NF-kappaB) transcription factor. Vav1 has also been shown to control the activation of phospholipase Cgamma1 (PLCgamma1) via both phosphoinositide-3-kinase (PI3K)-dependent and -independent pathways. Finally, Vav1 has been shown to transduce TCR signals to some but not all cytoskeleton-dependent pathways. In particular, Vav1 is required for efficient TCR-induced conjugate formation with antigen presenting cells (APCs), activation of the integrin leukocyte function-associated antigen-1 (LFA-1) and cell polarization.
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Affiliation(s)
- Victor L J Tybulewicz
- Division of Immune Cell Biology, National Institute for Medical Research, London, UK.
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27
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Ardouin L, Bracke M, Mathiot A, Pagakis SN, Norton T, Hogg N, Tybulewicz VLJ. Vav1 transduces TCR signals required for LFA-1 function and cell polarization at the immunological synapse. Eur J Immunol 2003; 33:790-7. [PMID: 12616499 DOI: 10.1002/eji.200323858] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Activation of T lineage cells through the TCR by peptide-MHC complexes on APC is critically dependent on rearrangement of the actin cytoskeleton. Vav1 is a guanine nucleotide exchange factor for members of the Rho/Rac family of GTPases which is activated following TCR stimulation, suggesting that it may transduce TCR signals to the activation of some or all actin-controlled processes. We show that Vav1-deficient double-positive thymocytes are less efficient at forming conjugates with APC presenting agonist peptide than wild-type cells are. Furthermore we demonstrate that Vav1 is required for TCR-induced activation of the integrin LFA-1, which is likely to explain the defect in conjugate formation. However, once Vav1-deficient cells form a conjugate, the assembly of proteins into an immunological synapse at the conjugate interface is normal. In contrast, thymocyte polarization is defective in the absence of Vav1, as judged by the relocalization of the microtubule-organizing center. These data demonstrate that Vav1 transduces signals to only a subset of cytoskeleton-dependent events at the immunological synapse.
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Affiliation(s)
- Laurence Ardouin
- National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, Great Britain
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28
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Smyth LA, Ardouin L, Williams O, Norton T, Tybulewicz V, Kioussis D. Inefficient clustering of tyrosine-phosphorylated proteins at the immunological synapse in response to an antagonist peptide. Eur J Immunol 2002; 32:3386-94. [PMID: 12432569 DOI: 10.1002/1521-4141(200212)32:12<3386::aid-immu3386>3.0.co;2-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Interactions of T cells with MHC plus peptide in the peripheral lymphoid system are important for their survival. In this study we investigated further the molecular consequences of such interactions using F5 TCR transgenic mice and peptides previously shown to induce either negative or positive selection in the thymus. Following TCR ligation with the negatively selecting agonist peptide, mature CD8(+) cells proliferated and up-regulated the activation marker CD69. Interestingly, ligation of this TCR with MHC molecules loaded with high concentrations of the positively selecting peptide also resulted in the aforementioned changes, but with slower kinetics. Analysis of the biochemical changes that occur following stimulation with these peptides showed that phosphorylation of key signaling molecules, such as ZAP-70, CD3zeta, Vav, SLP-76, LAT, and ERK-1 and 2, could be detected after exposure to agonist but not antagonist peptide. Confocal microscopy, however, revealed infrequent phosphorylation 'patches' at the site of contact between T cells and APC presenting the antagonist peptide. Our data suggest that peptides capable of inducing positive selection in the thymus can be recognized by mature T cells and cause proliferation, up-regulation of CD69 and accumulation of phosphorylated proteins at the immunological synapse with low efficiency; however no phosphorylation of signaling molecules can be detected using conventional biochemical assays.
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MESH Headings
- Animals
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/metabolism
- Antigens, CD/metabolism
- Antigens, Differentiation, T-Lymphocyte/metabolism
- Binding Sites
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Lectins, C-Type
- Mice
- Mice, Knockout
- Mice, Transgenic
- Peptides/pharmacology
- Phosphorylation
- Proteins/chemistry
- Proteins/metabolism
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Signal Transduction
- Tyrosine/chemistry
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Affiliation(s)
- Lesley A Smyth
- Division of Molecular Immunology, The National Institute for Medical Research, London, GB
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29
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Affiliation(s)
- B Malissen
- Centre d'Immunologie INSERM-CNRS de Marseille-Luminy, France
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30
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Ardouin L, Boyer C, Gillet A, Trucy J, Bernard AM, Nunes J, Delon J, Trautmann A, He HT, Malissen B, Malissen M. Crippling of CD3-zeta ITAMs does not impair T cell receptor signaling. Immunity 1999; 10:409-20. [PMID: 10229184 DOI: 10.1016/s1074-7613(00)80041-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We evaluated the importance of CD3-zeta ITAMs in T cell responses by breeding the P14 transgenic TCR into mice in which CD3-zeta chains lacking all or part of their ITAMs were genetically substituted for wild-type CD3-zeta chains. In contrast to the H-Y TCR, the P14 TCR permitted the development of peripheral CD8+ T cells harboring signaling-defective CD3-zeta subunits. The absence of functional CD3-zeta ITAMs did not reduce the spectrum of activation events and effector functions that constitute the normal attributes of mature CD8+ T cells. The only detectable differences were quantitative and noted only when T cells were challenged with suboptimal peptide concentrations. Therefore, the ITAMs present in the CD3-gammadeltaepsilon module are sufficient for qualitatively normal TCR signaling and those present in CD3-zeta have no exclusive role during T cell activation.
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MESH Headings
- Animals
- Antigens, Differentiation, T-Lymphocyte/biosynthesis
- Antigens, Differentiation, T-Lymphocyte/genetics
- CD3 Complex/genetics
- Calcium/metabolism
- Cell Differentiation/immunology
- Cell Membrane/chemistry
- Cell Membrane/metabolism
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- Down-Regulation/immunology
- Fas Ligand Protein
- Female
- Ligands
- Lymphocyte Activation/genetics
- Male
- Membrane Glycoproteins/biosynthesis
- Membrane Glycoproteins/genetics
- Mice
- Mice, Transgenic
- Mutagenesis, Site-Directed
- Phosphorylation
- Receptor-CD3 Complex, Antigen, T-Cell/chemistry
- Receptor-CD3 Complex, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/antagonists & inhibitors
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/physiology
- Signal Transduction/genetics
- Signal Transduction/immunology
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes, Cytotoxic/immunology
- Transduction, Genetic/immunology
- Tyrosine/metabolism
- fas Receptor/biosynthesis
- fas Receptor/genetics
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Affiliation(s)
- L Ardouin
- Centre d'Immunologie, INSERM-CNRS de Marseille-Luminy, France
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31
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Ardouin L, Ismaili J, Malissen B, Malissen M. The CD3-gammadeltaepsilon and CD3-zeta/eta modules are each essential for allelic exclusion at the T cell receptor beta locus but are both dispensable for the initiation of V to (D)J recombination at the T cell receptor-beta, -gamma, and -delta loci. J Exp Med 1998; 187:105-16. [PMID: 9419216 PMCID: PMC2199187 DOI: 10.1084/jem.187.1.105] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The pre-T cell receptor (TCR) associates with CD3-transducing subunits and triggers the selective expansion and maturation of T cell precursors expressing a TCR-beta chain. Recent experiments in pre-Talpha chain-deficient mice have suggested that the pre-TCR may not be required for signaling allelic exclusion at the TCR-beta locus. Using CD3-epsilon- and CD3-zeta/eta-deficient mice harboring a productively rearranged TCR-beta transgene, we showed that the CD3-gammadeltaepsilon and CD3-zeta/eta modules, and by inference the pre-TCR/CD3 complex, are each essential for the establishment of allelic exclusion at the endogenous TCR-beta locus. Furthermore, using mutant mice lacking both the CD3-epsilon and CD3-zeta/eta genes, we established that the CD3 gene products are dispensable for the onset of V to (D)J recombination (V, variable; D, diversity; J, joining) at the TCR-beta, TCR-gamma, and TCR-delta loci. Thus, the CD3 components are differentially involved in the sequential events that make the TCR-beta locus first accessible to, and later insulated from, the action of the V(D)J recombinase.
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MESH Headings
- Alleles
- Animals
- Base Sequence
- DNA Nucleotidyltransferases/metabolism
- DNA Primers/genetics
- Gene Rearrangement, beta-Chain T-Cell Antigen Receptor
- Gene Rearrangement, delta-Chain T-Cell Antigen Receptor
- Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor
- Genes, RAG-1
- Mice
- Mice, Knockout
- Mice, Transgenic
- Models, Biological
- Receptor-CD3 Complex, Antigen, T-Cell/chemistry
- Receptor-CD3 Complex, Antigen, T-Cell/genetics
- Receptor-CD3 Complex, Antigen, T-Cell/metabolism
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Recombination, Genetic
- Signal Transduction
- T-Lymphocyte Subsets/immunology
- VDJ Recombinases
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Affiliation(s)
- L Ardouin
- Centre d'Immunologie Institut National de la Santé et de la Recherche Médicale-Centre National de la Recherche Scientifique de Marseille-Luminy, Case 906, 13288 Marseille Cedex 9, France
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32
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Lin SY, Ardouin L, Gillet A, Malissen M, Malissen B. The single positive T cells found in CD3-zeta/eta-/- mice overtly react with self-major histocompatibility complex molecules upon restoration of normal surface density of T cell receptor-CD3 complex. J Exp Med 1997; 185:707-15. [PMID: 9034149 PMCID: PMC2196153 DOI: 10.1084/jem.185.4.707] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
CD3-zeta/eta-deficient mice have small thymuses containing cells that show a profound reduction in the surface levels of T cell receptors and terminate their differentiation at the CD4+CD8+ stage. Rather unexpectedly, CD3- or very low single positive T cells accumulate over time in the spleen and lymph nodes of CD3-zeta/eta-deficient mice after a process dependent on MHC expression. Fusion of these peripheral T cells with a CD3-zeta-positive derivative of the BW5147 TCR-alpha-/beta- thymoma resulted in hybridomas that do express an heterogeneous set of T cell receptor alpha/beta dimers at their surface and at density comparable to those found in hybridomas derived from wild-type peripheral T cells. We have investigated the specificities of these T cell receptors using spleen cells from congenic and mutant mouse strains, and showed that the majority of them readily recognized self-MHC class I or class II molecules. These results demonstrate that by increasing the density and/or output of the T cell receptors expressed in peripheral T cells, one can confer them with the capacity to respond to normal density of self-MHC molecules.
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Affiliation(s)
- S Y Lin
- Centre d'Immunologie, Institut National de la Sante et de la Recherche Medicale-Centre National de Recherche Scientifique de Marseille-Luminy, France
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MESH Headings
- Animals
- CD3 Complex/genetics
- CD3 Complex/immunology
- Gene Rearrangement, T-Lymphocyte/genetics
- Humans
- Hyaluronan Receptors/immunology
- Membrane Glycoproteins/immunology
- Membrane Proteins/genetics
- Membrane Proteins/immunology
- Mice
- Mice, Mutant Strains
- Receptor-CD3 Complex, Antigen, T-Cell/chemistry
- Receptor-CD3 Complex, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Interleukin-2/immunology
- Signal Transduction/immunology
- T-Lymphocytes/immunology
- T-Lymphocytes/physiology
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Affiliation(s)
- Y Tanaka
- Centre d'Immunologie INSERM-CNRS de Marseille-Luminy, France
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Malissen M, Gillet A, Ardouin L, Bouvier G, Trucy J, Ferrier P, Vivier E, Malissen B. Altered T cell development in mice with a targeted mutation of the CD3-epsilon gene. EMBO J 1995; 14:4641-53. [PMID: 7588594 PMCID: PMC394561 DOI: 10.1002/j.1460-2075.1995.tb00146.x] [Citation(s) in RCA: 301] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
To determine which CD3 components are required for early T cell development, we generated mice with a targeted mutation of the CD3-epsilon gene and characterized their T cell populations relative to those found in CD3-zeta/eta-and recombinase activating gene (RAG)-deficient mice. In the absence of intact CD3-epsilon subunit, thymocytes do not progress beyond the CD44-/lowCD25+ triple-negative stage and appear to be arrested at the very same developmental control point as RAG-deficient thymocytes. In contrast, the disruption of the CD3-epsilon/eta gene does not totally abrogate the progression through this control point. CD3-epsilon-deficient thymocytes do rearrange their T cell receptor (TCR) beta gene segments and produce low levels of full-length TCR beta transcripts. Taken together, these results establish an essential role for the CD3-epsilon gene products during T cell development and further suggest that the CD3-epsilon polypeptides start to exert their function as part of a pre-TCR through which CD44-/lowCD25+ triple-negative cells monitor the occurrence of productive TCR beta gene rearrangements. Finally, the absence of intact CD3-epsilon polypeptides had no discernible effect on the completion of TCR gamma and TCR delta gene rearrangements, emphasizing that they are probably not subjected to the same epigenetic controls as those operating on the expression of TCR alpha and beta genes.
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Affiliation(s)
- M Malissen
- Centre d'Immunologie INSERM-CNRS de Marseille-Luminy, France
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Renard V, Ardouin L, Malissen M, Milon G, Lebastard M, Gillet A, Malissen B, Vivier E. Normal development and function of natural killer cells in CD3 epsilon delta 5/delta 5 mutant mice. Proc Natl Acad Sci U S A 1995; 92:7545-9. [PMID: 7638228 PMCID: PMC41376 DOI: 10.1073/pnas.92.16.7545] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The CD3 epsilon polypeptide contributes to the cell surface display as well as to the signal transduction properties of the T-cell antigen receptor complex. Intriguingly, the distribution of CD3 epsilon is not restricted to T cells, since activated mouse, human, and avian natural killer (NK) cells do express intracytoplasmic CD3 epsilon polypeptides. CD3 epsilon is also present in the cytoplasm of fetal thymic T/NK bipotential progenitor cells, suggesting that it constitutes a component of the NK differentiation program. We report here that the genetic disruption of CD3 epsilon exon 5 alters neither NK cell development nor in vitro and in vivo NK functions, although it profoundly blocked T-cell development. These results support the notion that CD3 epsilon is dispensable for mouse NK cell ontogeny and function and further suggest that the common NK/T-cell progenitor cell utilizes CD3 epsilon as a mandatory component only when differentiating toward the T-cell lineage.
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Affiliation(s)
- V Renard
- Centre d'Immunologie, Institut National de la Santé et de la Recherche Médicale-Centre National de la Recherche Scientifique de Marseille-Luminy, Faculté de Luminy, France
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Gallet B, Adams C, Ardouin L, Fruchaud J, Saudemont JP, Hiltgen M. [Left ventricular dilatation after primary transmural anterior myocardial infarction. Influence of the percentage of akinesia on echocardiography]. Arch Mal Coeur Vaiss 1992; 85:1425-31. [PMID: 1297291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of this study was to determine whether the percentage of akinesia on echocardiography during the acute phase of transmural anterior myocardial infarction could predict secondary left ventricular dilatation. The study group comprised 24 patients (18 men and 6 women) with an average age of 59 years. The patients underwent two echocardiographic examinations, the first during the acute (< 72 hours) phase and the second, 6 months later. Ventricular volumes were calculated by the ellipse monoplane method in the apical 4 chamber view. The percentage of akinesia was defined as the ratio between the length of the akinetic segment and the left ventricular end diastolic perimeter in the apical 4 chamber view. An increase in end diastolic volume (83 +/- 25 vs 62 +/- 18 ml/m2; p < 0.01) and in end systolic volume (51 +/- 27 vs 34 +/- 11 ml/m2; p < 0.01) was observed 6 months after infarction without a significant change in ejection fractions (42 +/- 17% vs 44 +/- 10%). The percentage of akinesia in the acute phase was > 30% in 15 patients (Group I) and < 30% in 9 patients (Group II). The increase in ventricular volumes at 6 months after infarction was significant in Group I (p < 0.02) but not in Group II. At 6 months after infarction, the end systolic volumes were greater (60 +/- 27 vs 37 +/- 22 ml/m2, p < 0.5) and the ejection fractions were lower (35 +/- 13% vs 53 +/- 18%, p < 0.01) in Group I than in Group II.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- B Gallet
- Service de cardiologie, centre hospitalier Victor-Dupouy, Argenteuil
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Ardouin L, Caubarrère I, Toty L, Bernard A. [Variations in the distribution of bronchial arteries. Apropos of 72 arteriographies]. J Radiol 1986; 67:83-6. [PMID: 3712317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Anatomic distribution of bronchial arteries was studied by arteriography, and evaluation conducted of 72 images considered as being complete. Seven frequent types of distribution were note and findings compared with those of previous studies. Frequency of collateral circulation and of anastomosis was comparable with that reported in the literature. One new distribution pattern was observed: common lower trunk, right upper intercostobronchial trunk, left upper trunk.
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