Beneath HMGA2 alterations in Pleomorphic Adenomas: Pathological, Immunohistochemical, and Molecular Insights
- Type de publi. : Article dans une revue
- Date de publi. : 01/10/2024
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Auteurs :
Ziyad AlsugairCharles LépineFrançoise DescôtesMarie-Delphine LanicDaniel PissalouxFranck TirodeJonathan LopezPhilippe CérusePierre PhilouzeMaxime FieuxMichel WassefAnne-Catherine BaglinOnea MihaelaClaire CastainAnne SudakaEmmanuelle Uro-CosteAnne ChampagnacValérie Costes-MartineauMarick LaéNazim BenzerdjebC. Ala-EddineK. AubryE. BabinC. BachC. BadoualA.C. BaglinB. BarryV. BastitBertrand BaujatK. BenezeryR.J. BensadounN. BenzerdjebM. BernadachC. BertolusA. Biet-HornsteinD. BodmerP. BoisselierC. Boulagnon-RombiL. BozecA.Bozorg GrayeliE. BrenetL. BrugelG. CalaisV. CalugaruS. CambyO. CasiraghiE. CassagnauC. CastainJ. CastelliP. CeruseF. ChabolleD. ChevalierO. ChoussyF. ClatotJean-Marc ConstansA. CosteF. CosteV. CostesJ.P. CottierAlexandre CoutteJ.P. CristofariD. CupissolJ. DelgrandeJean-Pierre DelordBernard DevauchelleL. DigueGilles DolivetM. DoréS. DufloXavier DufourC. DupinE. EkerC. EvenCamille ÉvrardE. FabianoS. FaivreN. FakhryF.R. FerrandJ. FrandonD. FranettiL. de GaboryC. GalyM. GarcierR. GarrelH. GauthierL. GilainS. GuihardS. GuillermC. HalimiS. HansP. HermanAline HouessinonM. HourseauF. HuguetE. JadaudRoger JankowskiC. JeanneF. JegouxM. JuliéronR. KaciM.-C. KaminskyH. de KermadecF. KolbS. KrepsM. LaadhariJ. Lacau Saint GuilyL. LaccoureyeM. LaeF. LagardeA. LagrangeB. LallemantM. LamuragliaP. LangM. LapeyreA. LapierreA.Lasne CardonC. Le TourneauG. LefebvreM. LefevreY. LelongeX. LeroyM. LesnikX. LiemC. LinassierP. MaingonC. MajoufreO. MalardG. MaloufC. MarchandJ.-P. MarieT. MaurinaO. MauvaisJ.-C. MerolJ. MichelG. MineurS. MirafzalH. MirghaniA. ModestoS. Molinier-BlossierE. de MonèsS. MorinièreF. MouawadA. Moya-PlanaL. MullerE. MusatF. NguyenGeorges NoelF.R. Obongo-AngaM. OneaH. OrliacCyril PageV. PatronJ. PestreN. Pham DangP. PhilouzeG. PoissonnetC. PonsC. PouliquenA. PrevostC. QueirosA. RahmaniA. RambeauL. RaminS. RenardA. SiegfriedC.A. RighiniF. RollandE. SaadaF. SacinoS. SalasN. SaroulP. SchultzA. SiegfriedA. SimonaggioO. SterkersV. StrunskiA. SudakaS. Xu-ShanR. TaouachiM. TassartSylvie TestelinM. Timar DavidA. TimochenkoB. ToussaintE. Uro CosteG. ValetteT. van den AbbeleA. VaroquauxE. VauleonS. VergezB. VerillaudJ. VillaA. VillepeletM. VolondatN. VulquinI. WagnerMichel WassefL. WebertS. Wong
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Organismes :
Hospices Civils de Lyon
Centre Hospitalier Universitaire de Nantes = Nantes University Hospital
Service de Biochimie et Biologie moléculaire [CH Lyon Sud]
Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques
Centre de Recherche en Cancérologie de Lyon
Centre de Recherche en Cancérologie de Lyon
Hospices Civils de Lyon
Département d'ORL, chirurgie cervico-maxillo-faciale et d'audiophonologie [Hôpital Edouard Herriot - HCL]
Département d'ORL, chirurgie cervico-maxillo-faciale et d'audiophonologie [Hôpital Edouard Herriot - HCL]
Département d'ORL, chirurgie cervico-maxillo-faciale et d'audiophonologie [Hôpital Edouard Herriot - HCL]
Hôpital Lariboisière-Fernand-Widal [APHP]
Hôpital Lariboisière-Fernand-Widal [APHP]
Centre Hospitalier Universitaire [Strasbourg]
CHU de Bordeaux Pellegrin [Bordeaux]
Centre de Lutte contre le Cancer Antoine Lacassagne [Nice]
Institut Universitaire du Cancer de Toulouse - Oncopole
Centre Léon Bérard [Lyon]
CHU Montpellier = Montpellier University Hospital
Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques
Hospices Civils de Lyon
Centre pour l'innovation en cancérologie de Lyon
- Publié dans Human Pathology le 26/10/2020
Résumé : Aims: Most salivary gland neoplasms are distinguished by specific recurrent gene fusions. Recently, a subset of pleomorphic adenomas (PAs) originated from the parotid gland harboring the HMGA2:WIF1 fusion was described with a canalicular adenoma-like morphology and a greater propensity for recurrence and carcinomatous transformation.
Methods and results: This study delineates the clinicopathological attributes of 54 cases of PAs exhibiting HMGA2 alterations, predominantly characterized by the HMGA2:WIF1 fusion, alongside a comparative analysis of their morphological and immunohistochemical profiles. The cohort consisted of 23 females and 31 males (n = 54), mean age was 56.7 (25-84), tumors predominantly originated from the parotid gland (94.4%, 51/54), with 3 cases from seromucous glands (5.6%). Mean tumor size was 2.6 cm (0.8-7.5). No clinical difference (demographic, follow-up) was observed among histological subsets (conventional, hybrid, and pure). Complete excision was performed in all cases, with follow-up data available for 41% (22/54) of patients, showing 13.6% of recurrence (3/22) between 5 and 8 months. Various histological growth patterns were identified, with the pure hypercellular monomorphic subset being the most prevalent. The HMGA2:WIF1 gene was identified in all subsets without any particular predominance. Novel gene partners of HMGA2 were identified, comprising NRXN1, INPP4B, MSRB3, PHLDA1, and FLJ41278.
Conclusions: The present study reports that the HMGA2:WIF1 gene fusion was present in all subsets of PAs without significant predominance. However, further investigations are warranted to explore the relationship between histological subsets of PAs and the molecular alterations underlying them.
Fichiers liés :
Beneath-HMGA2-alterations-in-pleomorphic-adenomas--Pathologica_2024_Human-Pa.pdf
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