دورية أكاديمية
PDXK mutations cause polyneuropathy responsive to pyridoxal 5'-phosphate supplementation.
| العنوان: | PDXK mutations cause polyneuropathy responsive to pyridoxal 5'-phosphate supplementation. |
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| المؤلفون: | Chelban V(1)(2), Wilson MP(3), Warman Chardon J(4)(5)(6), Vandrovcova J(1), Zanetti MN(7), Zamba-Papanicolaou E(8)(9), Efthymiou S(1), Pope S(10), Conte MR(11), Abis G(11), Liu YT(12)(13)(14), Tribollet E(1), Haridy NA(1)(15), Botía JA(16)(17), Ryten M(16)(18), Nicolaou P(8)(9), Minaidou A(8)(9), Christodoulou K(8)(9), Kernohan KD(6)(19), Eaton A(6), Osmond M(6), Ito Y(6), Bourque P(4)(5), Jepson JEC(7), Bello O(7), Bremner F(20), Cordivari C(21), Reilly MM(1), Foiani M(21)(22), Heslegrave A(22)(23), Zetterberg H(22)(23)(24)(25), Heales SJR(10), Wood NW(1)(26), Rothman JE(7)(27), Boycott KM(6), Mills PB(3), Clayton PT(3), Houlden H(1)(26), Care4Rare Canada Consortium and the SYNaPS Study Group(6). Collaborators: Kriouile Y, Khorassani ME, Aguennouz M, Groppa S, Marinova Karashova B, Van Maldergem L, Nachbauer W, Boesch S, Arning L, Timmann D, Cormand B, Pérez-Dueñas B, Di Rosa G, Goraya JS, Sultan T, Mine J, Avdjieva D, Kathom H, Tincheva R, Banu S, Pineda-Marfa M, Veggiotti P, Ferrari MD, van den Maagdenberg AMJM, Verrotti A, Marseglia G, Savasta S, García-Silva M, Ruiz AM, Garavaglia B, Borgione E, Portaro S, Sanchez BM, Boles R, Papacostas S, Vikelis M, Rothman J, Giunti P, Houlden H, Chelban V, Salpietro V, Oconnor E, Efthymiou S, Kullmann D, Kaiyrzhanov R, Sullivan R, Khan AM, Yau WY, Hostettler I, Papanicolaou EZ, Dardiotis E, Maqbool S, Ibrahim S, Kirmani S, Rana NN, Atawneh O, Lim SY, Shaikh F, Koutsis G, Breza M, Mangano S, Scuderi C, Morello G, Stojkovic T, Torti E, Zollo M, Heimer G, Dauvilliers YA, Striano P, Al-Khawaja I, Al-Mutairi F, Alkuraya FS, Sherifa H, Rizig M, Okubadejo NU, Ojo OO, Oshinaike OO, Wahab K, Bello AH, Abubakar S, Obiabo Y, Nwazor E, Ekenze O, Williams U, Iyagba A, Taiwo L, Komolafe M, Oguntunde O, Pchelina S, Senkevich K, Haridy N, Shashkin C, Zharkynbekova N, Koneyev K, Manizha G, Isrofilov M, Guliyeva U, Salayev K, Khachatryan S, Rossi S, Silvestri G, Bourinaris T, Xiromerisiou G, Fidani L, Spanaki C, Tucci A. |
| المساهمون: | Chelban, V(1)(2), Wilson, MP(3), Warman Chardon, J(4)(5)(6), Vandrovcova, J(1), Zanetti, MN(7), Zamba-Papanicolaou, E(8)(9), Efthymiou, S(1), Pope, S(10), Conte, MR(11), Abis, G(11), Liu, YT(12)(13)(14), Tribollet, E(1), Haridy, NA(1)(15), Botía, JA(16)(17), Ryten, M(16)(18), Nicolaou, P(8)(9), Minaidou, A(8)(9), Christodoulou, K(8)(9), Kernohan, KD(6)(19), Eaton, A(6), Osmond, M(6), Ito, Y(6), Bourque, P(4)(5), Jepson, JEC(7), Bello, O(7), Bremner, F(20), Cordivari, C(21), Reilly, MM(1), Foiani, M(21)(22), Heslegrave, A(22)(23), Zetterberg, H(22)(23)(24)(25), Heales, SJR(10), Wood, NW(1)(26), Rothman, JE(7)(27), Boycott, KM(6), Mills, PB(3), Clayton, PT(3), Houlden, H(1)(26), Care4Rare Canada Consortium and the SYNaPS Study Group(6)., Collaborators: Kriouile Y, Khorassani, Me, Aguennouz, M, Groppa, S, Marinova Karashova, B, Van Maldergem, L, Nachbauer, W, Boesch, S, Arning, L, Timmann, D, Cormand, B, Pérez-Dueñas, B, Di Rosa, G, Goraya, J, Sultan, T, Mine, J, Avdjieva, D, Kathom, H, Tincheva, R, Banu, S, Pineda-Marfa, M, Veggiotti, P, Ferrari, Md, van den Maagdenberg, Amjm, Verrotti, A, Marseglia, G, Savasta, S, García-Silva, M, Ruiz, Am, Garavaglia, B, Borgione, E, Portaro, S, Sanchez, Bm, Boles, R, Papacostas, S, Vikelis, M, Rothman, J, Giunti, P, Houlden, H, Chelban, V, Salpietro, V, Oconnor, E, Efthymiou, S, Kullmann, D, Kaiyrzhanov, R, Sullivan, R, Khan, Am, Yau, Wy, Hostettler, I, Papanicolaou, Ez, Dardiotis, E, Maqbool, S, Ibrahim, S, Kirmani, S, Rana, Nn, Atawneh, O, Lim, Sy, Shaikh, F, Koutsis, G, Breza, M, Mangano, S, Scuderi, C |
| سنة النشر: | 2019 |
| المجموعة: | Università degli Studi di Messina: IRIS |
| مصطلحات موضوعية: | CHARCOT-MARIE-TOOTH, CMT NEUROPATHY SCORE, LOCAL TRANSLATION, DISEASE, RELIABILITY, MECHANISMS, DISCOVERY, FRAMEWORK, KINASE, PLASMA |
| الوصف: | OBJECTIVE: To identify disease-causing variants in autosomal recessive axonal polyneuropathy with optic atrophy and provide targeted replacement therapy. METHODS: We performed genome-wide sequencing, homozygosity mapping, and segregation analysis for novel disease-causing gene discovery. We used circular dichroism to show secondary structure changes and isothermal titration calorimetry to investigate the impact of variants on adenosine triphosphate (ATP) binding. Pathogenicity was further supported by enzymatic assays and mass spectroscopy on recombinant protein, patient-derived fibroblasts, plasma, and erythrocytes. Response to supplementation was measured with clinical validated rating scales, electrophysiology, and biochemical quantification. RESULTS: We identified biallelic mutations in PDXK in 5 individuals from 2 unrelated families with primary axonal polyneuropathy and optic atrophy. The natural history of this disorder suggests that untreated, affected individuals become wheelchair-bound and blind. We identified conformational rearrangement in the mutant enzyme around the ATP-binding pocket. Low PDXK ATP binding resulted in decreased erythrocyte PDXK activity and low pyridoxal 5'-phosphate (PLP) concentrations. We rescued the clinical and biochemical profile with PLP supplementation in 1 family, improvement in power, pain, and fatigue contributing to patients regaining their ability to walk independently during the first year of PLP normalization. INTERPRETATION: We show that mutations in PDXK cause autosomal recessive axonal peripheral polyneuropathy leading to disease via reduced PDXK enzymatic activity and low PLP. We show that the biochemical profile can be rescued with PLP supplementation associated with clinical improvement. As B6 is a cofactor in diverse essential biological pathways, our findings may have direct implications for neuropathies of unknown etiology characterized by reduced PLP levels. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/31187503; info:eu-repo/semantics/altIdentifier/wos/WOS:000473919500001; volume:86; issue:2; firstpage:225; lastpage:240; numberofpages:16; journal:ANNALS OF NEUROLOGY; http://hdl.handle.net/11570/3161942Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85068354982; wileyonlinelibrary.com |
| DOI: | 10.1002/ana.25524 |
| الإتاحة: | https://doi.org/10.1002/ana.25524Test http://hdl.handle.net/11570/3161942Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E48BEA5C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/ana.25524 |
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