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1. Loss-of-function mutations in UDP-Glucose 6-Dehydrogenase cause recessive developmental epileptic encephalopathy

Author

Hengel, H. (Holger), Bosso-Lefèvre, C. (Célia), Grady, G. (George), Szenker-Ravi, E. (Emmanuelle), Li, H. (Hankun), Pierce, S. (Sarah), Lebigot, É. (Élise), Tan, T.-T. (Thong-Teck), Eio, M.Y. (Michelle Y.), Narayanan, G. (Gunaseelan), Utami, K.H. (Kagistia Hana), Yau, M. (Monica), Handal, N. (Nader), Deigendesch, W. (Werner), Keimer, R. (Reinhard), Marzouqa, H.M. (Hiyam M.), Gunay-Aygun, M. (Meral), Muriello, M.J. (Michael J.), Verhelst, H. (H.), Weckhuysen, S. (Sarah), Mahida, S. (Sonal), Naidu, S. (Sakkubai), Thomas, T.G. (Terrence G.), Lim, J.Y. (Jiin Ying), Tan, E.S. (Ee Shien), Haye, D. (Damien), Willemsen, M.A. (Michél), Oegema, R. (Renske), Mitchell, W.G. (Wendy G.), Pierson, T.M. (Tyler Mark), Andrews, M.V. (Marisa V.), Willing, M.C. (Marcia C.), Rodan, L.H. (Lance H.), Barakat, T.S. (Tahsin Stefan), Slegtenhorst, M.A. (Marjon) van, Gavrilova, R.H. (Ralitza H.), Martinelli, D. (Diego), Gilboa, T. (Tal), Tamim, A.M. (Abdullah M.), Hashem, M.O. (Mais O.), AlSayed, M.D. (Moeenaldeen D.), Abdulrahim, M.M. (Maha M.), Al-Owain, M. (Mohammed), Awaji, A. (Ali), Mahmoud, A.A.H. (Adel A. H.), Faqeih, E.A. (Eissa A.), Asmari, A.A. (Ali Al), Algain, S.M. (Sulwan M.), Jad, L.A. (Lamyaa A.), Aldhalaan, H.M. (Hesham M.), Helbig, I. (Ingo), Koolen, D.A. (David), Rieß, A. (Angelika), Kraegeloh-Mann, I. (Ingeborg), Bauer, P. (Peter), Gulsuner, S. (Suleyman), Stamberger, H. (Hannah), Ng, A.Y.J. (Alvin Yu Jin), Tang, S. (Sha), Tohari, S. (Sumanty), Keren, B. (Boris), Schultz-Rogers, L.E. (Laura E.), Klee, E.W. (Eric W.), Barresi, S. (Sabina), Tartaglia, M. (Marco), Mor-Shaked, H. (Hagar), Maddirevula, S. (Sateesh), Begtrup, A. (Amber), Telegrafi, A. (Aida), Pfundt, R. (Rolph), Schüle, R. (Rebecca), Ciruna, B. (Brian), Bonnard, C. (Carine), Pouladi, M.A. (Mahmoud A.), Stewart, J.C. (James C.), Claridge-Chang, A. (Adam), Lefeber, D.J. (Dirk J.), Alkuraya, F.S. (Fowzan S), Mathuru, A.S. (Ajay S.), Venkatesh, B. (Byrappa), Barycki, J.J. (Joseph J.), Simpson, M.A. (Melanie A.), Jamuar, S.S. (Saumya S.), Schöls, L. (Ludger), Reversade, B. (Bruno), Hengel, H. (Holger), Bosso-Lefèvre, C. (Célia), Grady, G. (George), Szenker-Ravi, E. (Emmanuelle), Li, H. (Hankun), Pierce, S. (Sarah), Lebigot, É. (Élise), Tan, T.-T. (Thong-Teck), Eio, M.Y. (Michelle Y.), Narayanan, G. (Gunaseelan), Utami, K.H. (Kagistia Hana), Yau, M. (Monica), Handal, N. (Nader), Deigendesch, W. (Werner), Keimer, R. (Reinhard), Marzouqa, H.M. (Hiyam M.), Gunay-Aygun, M. (Meral), Muriello, M.J. (Michael J.), Verhelst, H. (H.), Weckhuysen, S. (Sarah), Mahida, S. (Sonal), Naidu, S. (Sakkubai), Thomas, T.G. (Terrence G.), Lim, J.Y. (Jiin Ying), Tan, E.S. (Ee Shien), Haye, D. (Damien), Willemsen, M.A. (Michél), Oegema, R. (Renske), Mitchell, W.G. (Wendy G.), Pierson, T.M. (Tyler Mark), Andrews, M.V. (Marisa V.), Willing, M.C. (Marcia C.), Rodan, L.H. (Lance H.), Barakat, T.S. (Tahsin Stefan), Slegtenhorst, M.A. (Marjon) van, Gavrilova, R.H. (Ralitza H.), Martinelli, D. (Diego), Gilboa, T. (Tal), Tamim, A.M. (Abdullah M.), Hashem, M.O. (Mais O.), AlSayed, M.D. (Moeenaldeen D.), Abdulrahim, M.M. (Maha M.), Al-Owain, M. (Mohammed), Awaji, A. (Ali), Mahmoud, A.A.H. (Adel A. H.), Faqeih, E.A. (Eissa A.), Asmari, A.A. (Ali Al), Algain, S.M. (Sulwan M.), Jad, L.A. (Lamyaa A.), Aldhalaan, H.M. (Hesham M.), Helbig, I. (Ingo), Koolen, D.A. (David), Rieß, A. (Angelika), Kraegeloh-Mann, I. (Ingeborg), Bauer, P. (Peter), Gulsuner, S. (Suleyman), Stamberger, H. (Hannah), Ng, A.Y.J. (Alvin Yu Jin), Tang, S. (Sha), Tohari, S. (Sumanty), Keren, B. (Boris), Schultz-Rogers, L.E. (Laura E.), Klee, E.W. (Eric W.), Barresi, S. (Sabina), Tartaglia, M. (Marco), Mor-Shaked, H. (Hagar), Maddirevula, S. (Sateesh), Begtrup, A. (Amber), Telegrafi, A. (Aida), Pfundt, R. (Rolph), Schüle, R. (Rebecca), Ciruna, B. (Brian), Bonnard, C. (Carine), Pouladi, M.A. (Mahmoud A.), Stewart, J.C. (James C.), Claridge-Chang, A. (Adam), Lefeber, D.J. (Dirk J.), Alkuraya, F.S. (Fowzan S), Mathuru, A.S. (Ajay S.), Venkatesh, B. (Byrappa), Barycki, J.J. (Joseph J.), Simpson, M.A. (Melanie A.), Jamuar, S.S. (Saumya S.), Schöls, L. (Ludger), and Reversade, B. (Bruno)

Abstract

Developmental epileptic encephalopathies are devastating disorders characterized by intractable epileptic seizures and developmental delay. Here, we report an allelic series of germline recessive mutations in UGDH in 36 cases from 25 families presenting with epileptic encephalopathy with developmental delay and hypotonia. UGDH encodes an oxidoreductase that converts UDP-glucose to UDP-glucuronic acid, a key component of specific proteoglycans and glycolipids. Consistent with being loss-of-function alleles, we show using patients’ primary fibroblasts and biochemical assays, that these mutations either impair UGDH stability, oligomerization, or enzymatic activity. In vitro, patient-derived cerebral organoids are smaller with a reduced number of proliferating neuronal progenitors while mutant ugdh zebrafish do not phenocopy the human disease. Our study defines UGDH as a key player for the production of extracellular matrix components that are essential for human brain development. Based on the incidence of variants observed, UGDH mutations are likely to be a frequent cause of recessive epileptic encephalopathy.

Published
2020
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2. Loss-of-function mutations in UDP-Glucose 6-Dehydrogenase cause recessive developmental epileptic encephalopathy

Author

Hengel, H., Bosso-Lefevre, C., Grady, G., Szenker-Ravi, E., Li, H., Pierce, S., Lebigot, E., Tan, T.T., Eio, M.Y., Narayanan, G., Utami, K.H., Yau, M., Handal, N., Deigendesch, W., Keimer, R., Marzouqa, H.M., Gunay-Aygun, M., Muriello, M.J., Verhelst, H., Weckhuysen, S., Mahida, S., Naidu, S., Thomas, T.G., Lim, J.Y., Tan, E.S., Haye, D., Willemsen, M.A.A.P., Oegema, R., Mitchell, W.G., Pierson, T.M., Andrews, M.V., Willing, M.C., Rodan, L.H., Barakat, T.S., Slegtenhorst, M. van, Gavrilova, R.H., Martinelli, D., Gilboa, T., Tamim, A.M., Hashem, M.O., AlSayed, M.D., Abdulrahim, M.M., Al-Owain, M., Awaji, A., Mahmoud, A.A.H., Faqeih, E.A., Asmari, A.A., Algain, S.M., Jad, L.A., Aldhalaan, H.M., Helbig, I., Koolen, D.A., Riess, A., Kraegeloh-Mann, I., Bauer, P., Gulsuner, S., Stamberger, H., Ng, A.Y., Tang, S., Tohari, S., Keren, B., Schultz-Rogers, L.E., Klee, E.W., Barresi, S., Tartaglia, M., Mor-Shaked, H., Maddirevula, S., Begtrup, A., Telegrafi, A., Pfundt, R.P., Schule, R., Ciruna, B., Bonnard, C., Pouladi, M.A., Stewart, J.C., Claridge-Chang, A., Lefeber, D.J., Alkuraya, F.S., Mathuru, A.S., Venkatesh, B., Barycki, J.J., Simpson, Malcolm, Jamuar, S.S., Schols, L., Reversade, B., Hengel, H., Bosso-Lefevre, C., Grady, G., Szenker-Ravi, E., Li, H., Pierce, S., Lebigot, E., Tan, T.T., Eio, M.Y., Narayanan, G., Utami, K.H., Yau, M., Handal, N., Deigendesch, W., Keimer, R., Marzouqa, H.M., Gunay-Aygun, M., Muriello, M.J., Verhelst, H., Weckhuysen, S., Mahida, S., Naidu, S., Thomas, T.G., Lim, J.Y., Tan, E.S., Haye, D., Willemsen, M.A.A.P., Oegema, R., Mitchell, W.G., Pierson, T.M., Andrews, M.V., Willing, M.C., Rodan, L.H., Barakat, T.S., Slegtenhorst, M. van, Gavrilova, R.H., Martinelli, D., Gilboa, T., Tamim, A.M., Hashem, M.O., AlSayed, M.D., Abdulrahim, M.M., Al-Owain, M., Awaji, A., Mahmoud, A.A.H., Faqeih, E.A., Asmari, A.A., Algain, S.M., Jad, L.A., Aldhalaan, H.M., Helbig, I., Koolen, D.A., Riess, A., Kraegeloh-Mann, I., Bauer, P., Gulsuner, S., Stamberger, H., Ng, A.Y., Tang, S., Tohari, S., Keren, B., Schultz-Rogers, L.E., Klee, E.W., Barresi, S., Tartaglia, M., Mor-Shaked, H., Maddirevula, S., Begtrup, A., Telegrafi, A., Pfundt, R.P., Schule, R., Ciruna, B., Bonnard, C., Pouladi, M.A., Stewart, J.C., Claridge-Chang, A., Lefeber, D.J., Alkuraya, F.S., Mathuru, A.S., Venkatesh, B., Barycki, J.J., Simpson, Malcolm, Jamuar, S.S., Schols, L., and Reversade, B.

Abstract

Contains fulltext : 218288.pdf (publisher's version ) (Open Access), Developmental epileptic encephalopathies are devastating disorders characterized by intractable epileptic seizures and developmental delay. Here, we report an allelic series of germline recessive mutations in UGDH in 36 cases from 25 families presenting with epileptic encephalopathy with developmental delay and hypotonia. UGDH encodes an oxidoreductase that converts UDP-glucose to UDP-glucuronic acid, a key component of specific proteoglycans and glycolipids. Consistent with being loss-of-function alleles, we show using patients' primary fibroblasts and biochemical assays, that these mutations either impair UGDH stability, oligomerization, or enzymatic activity. In vitro, patient-derived cerebral organoids are smaller with a reduced number of proliferating neuronal progenitors while mutant ugdh zebrafish do not phenocopy the human disease. Our study defines UGDH as a key player for the production of extracellular matrix components that are essential for human brain development. Based on the incidence of variants observed, UGDH mutations are likely to be a frequent cause of recessive epileptic encephalopathy.

Published
2020

3. Loss-of-function mutations in UDP-Glucose 6-Dehydrogenase cause recessive developmental epileptic encephalopathy

Author

Hengel, H., Bosso-Lefevre, C., Grady, G., Szenker-Ravi, E., Li, H., Pierce, S., Lebigot, E., Tan, T.T., Eio, M.Y., Narayanan, G., Utami, K.H., Yau, M., Handal, N., Deigendesch, W., Keimer, R., Marzouqa, H.M., Gunay-Aygun, M., Muriello, M.J., Verhelst, H., Weckhuysen, S., Mahida, S., Naidu, S., Thomas, T.G., Lim, J.Y., Tan, E.S., Haye, D., Willemsen, M.A.A.P., Oegema, R., Mitchell, W.G., Pierson, T.M., Andrews, M.V., Willing, M.C., Rodan, L.H., Barakat, T.S., Slegtenhorst, M. van, Gavrilova, R.H., Martinelli, D., Gilboa, T., Tamim, A.M., Hashem, M.O., AlSayed, M.D., Abdulrahim, M.M., Al-Owain, M., Awaji, A., Mahmoud, A.A.H., Faqeih, E.A., Asmari, A.A., Algain, S.M., Jad, L.A., Aldhalaan, H.M., Helbig, I., Koolen, D.A., Riess, A., Kraegeloh-Mann, I., Bauer, P., Gulsuner, S., Stamberger, H., Ng, A.Y., Tang, S., Tohari, S., Keren, B., Schultz-Rogers, L.E., Klee, E.W., Barresi, S., Tartaglia, M., Mor-Shaked, H., Maddirevula, S., Begtrup, A., Telegrafi, A., Pfundt, R.P., Schule, R., Ciruna, B., Bonnard, C., Pouladi, M.A., Stewart, J.C., Claridge-Chang, A., Lefeber, D.J., Alkuraya, F.S., Mathuru, A.S., Venkatesh, B., Barycki, J.J., Simpson, Malcolm, Jamuar, S.S., Schols, L., Reversade, B., Hengel, H., Bosso-Lefevre, C., Grady, G., Szenker-Ravi, E., Li, H., Pierce, S., Lebigot, E., Tan, T.T., Eio, M.Y., Narayanan, G., Utami, K.H., Yau, M., Handal, N., Deigendesch, W., Keimer, R., Marzouqa, H.M., Gunay-Aygun, M., Muriello, M.J., Verhelst, H., Weckhuysen, S., Mahida, S., Naidu, S., Thomas, T.G., Lim, J.Y., Tan, E.S., Haye, D., Willemsen, M.A.A.P., Oegema, R., Mitchell, W.G., Pierson, T.M., Andrews, M.V., Willing, M.C., Rodan, L.H., Barakat, T.S., Slegtenhorst, M. van, Gavrilova, R.H., Martinelli, D., Gilboa, T., Tamim, A.M., Hashem, M.O., AlSayed, M.D., Abdulrahim, M.M., Al-Owain, M., Awaji, A., Mahmoud, A.A.H., Faqeih, E.A., Asmari, A.A., Algain, S.M., Jad, L.A., Aldhalaan, H.M., Helbig, I., Koolen, D.A., Riess, A., Kraegeloh-Mann, I., Bauer, P., Gulsuner, S., Stamberger, H., Ng, A.Y., Tang, S., Tohari, S., Keren, B., Schultz-Rogers, L.E., Klee, E.W., Barresi, S., Tartaglia, M., Mor-Shaked, H., Maddirevula, S., Begtrup, A., Telegrafi, A., Pfundt, R.P., Schule, R., Ciruna, B., Bonnard, C., Pouladi, M.A., Stewart, J.C., Claridge-Chang, A., Lefeber, D.J., Alkuraya, F.S., Mathuru, A.S., Venkatesh, B., Barycki, J.J., Simpson, Malcolm, Jamuar, S.S., Schols, L., and Reversade, B.

Abstract

Contains fulltext : 218288.pdf (publisher's version ) (Open Access), Developmental epileptic encephalopathies are devastating disorders characterized by intractable epileptic seizures and developmental delay. Here, we report an allelic series of germline recessive mutations in UGDH in 36 cases from 25 families presenting with epileptic encephalopathy with developmental delay and hypotonia. UGDH encodes an oxidoreductase that converts UDP-glucose to UDP-glucuronic acid, a key component of specific proteoglycans and glycolipids. Consistent with being loss-of-function alleles, we show using patients' primary fibroblasts and biochemical assays, that these mutations either impair UGDH stability, oligomerization, or enzymatic activity. In vitro, patient-derived cerebral organoids are smaller with a reduced number of proliferating neuronal progenitors while mutant ugdh zebrafish do not phenocopy the human disease. Our study defines UGDH as a key player for the production of extracellular matrix components that are essential for human brain development. Based on the incidence of variants observed, UGDH mutations are likely to be a frequent cause of recessive epileptic encephalopathy.

Published
2020

4. Loss-of-function mutations in UDP-Glucose 6-Dehydrogenase cause recessive developmental epileptic encephalopathy

Author

Reversade, Bruno, Hengel, H.; Bosso-Lefèvre, C.; Grady, G.; Szenker-Ravi, E.; Li, H.; Pierce, S.; Lebigot, É.; Tan, T.-T.; Eio, M.Y.; Narayanan, G.; Utami, K.H.; Yau, M.; Handal, N.; Deigendesch, W.; Keimer, R.; Marzouqa, H.M.; Gunay-Aygun, M.; Muriello, M.J.; Verhelst, H.; Weckhuysen, S.; Mahida, S.; Naidu, S.; Thomas, T.G.; Lim, J.Y.; Tan, E.S.; Haye, D.; Willemsen, M.A.A.P.; Oegema, R.; Mitchell, W.G.; Pierson, T.M.; Andrews, M.V.; Willing, M.C.; Rodan, L.H.; Barakat, T.S.; van Slegtenhorst, M.; Gavrilova, R.H.; Martinelli, D.; Gilboa, T.; Tamim, A.M.; Hashem, M.O.; AlSayed, M.D.; Abdulrahim, M.M.; Al-Owain, M.; Awaji, A.; Mahmoud, A.A.H.; Faqeih, E.A.; Asmari, A.A.; Algain, S.M.; Jad, L.A.; Aldhalaan, H.M.; Helbig, I.; Koolen, D.A.; Riess, A.; Kraegeloh-Mann, I.; Bauer, P.; Gulsuner, S.; Stamberger, H.; Ng, A.Y.J.; Tang, S.; Tohari, S.; Keren, B.; Schultz-Rogers, L.E.; Klee, E.W.; Barresi, S.; Tartaglia, M.; Mor-Shaked, H.; Maddirevula, S.; Begtrup, A.; Telegrafi, A.; Pfundt, R.; Schüle, R.; Ciruna, B.; Bonnard, C.; Pouladi, M.A.; Stewart, J.C.; Claridge-Chang, A.; Lefeber, D.J.; Alkuraya, F.S.; Mathuru, A.S.; Venkatesh, B.; Barycki, J.J.; Simpson, M.A.; Jamuar, S.S.; Schöls, L, School of Medicine, Reversade, Bruno, Hengel, H.; Bosso-Lefèvre, C.; Grady, G.; Szenker-Ravi, E.; Li, H.; Pierce, S.; Lebigot, É.; Tan, T.-T.; Eio, M.Y.; Narayanan, G.; Utami, K.H.; Yau, M.; Handal, N.; Deigendesch, W.; Keimer, R.; Marzouqa, H.M.; Gunay-Aygun, M.; Muriello, M.J.; Verhelst, H.; Weckhuysen, S.; Mahida, S.; Naidu, S.; Thomas, T.G.; Lim, J.Y.; Tan, E.S.; Haye, D.; Willemsen, M.A.A.P.; Oegema, R.; Mitchell, W.G.; Pierson, T.M.; Andrews, M.V.; Willing, M.C.; Rodan, L.H.; Barakat, T.S.; van Slegtenhorst, M.; Gavrilova, R.H.; Martinelli, D.; Gilboa, T.; Tamim, A.M.; Hashem, M.O.; AlSayed, M.D.; Abdulrahim, M.M.; Al-Owain, M.; Awaji, A.; Mahmoud, A.A.H.; Faqeih, E.A.; Asmari, A.A.; Algain, S.M.; Jad, L.A.; Aldhalaan, H.M.; Helbig, I.; Koolen, D.A.; Riess, A.; Kraegeloh-Mann, I.; Bauer, P.; Gulsuner, S.; Stamberger, H.; Ng, A.Y.J.; Tang, S.; Tohari, S.; Keren, B.; Schultz-Rogers, L.E.; Klee, E.W.; Barresi, S.; Tartaglia, M.; Mor-Shaked, H.; Maddirevula, S.; Begtrup, A.; Telegrafi, A.; Pfundt, R.; Schüle, R.; Ciruna, B.; Bonnard, C.; Pouladi, M.A.; Stewart, J.C.; Claridge-Chang, A.; Lefeber, D.J.; Alkuraya, F.S.; Mathuru, A.S.; Venkatesh, B.; Barycki, J.J.; Simpson, M.A.; Jamuar, S.S.; Schöls, L, and School of Medicine

Abstract

Developmental epileptic encephalopathies are devastating disorders characterized by intractable epileptic seizures and developmental delay. Here, we report an allelic series of germline recessive mutations in UGDH in 36 cases from 25 families presenting with epileptic encephalopathy with developmental delay and hypotonia. UGDH encodes an oxidoreductase that converts UDP-glucose to UDP-glucuronic acid, a key component of specific proteoglycans and glycolipids. Consistent with being loss-of-function alleles, we show using patients’ primary fibroblasts and biochemical assays, that these mutations either impair UGDH stability, oligomerization, or enzymatic activity. In vitro, patient-derived cerebral organoids are smaller with a reduced number of proliferating neuronal progenitors while mutant ugdh zebrafish do not phenocopy the human disease. Our study defines UGDH as a key player for the production of extracellular matrix components that are essential for human brain development. Based on the incidence of variants observed, UGDH mutations are likely to be a frequent cause of recessive epileptic encephalopathy., German Research Foundation (DFG); European Union (European Union); NEUROMICS Network; International Coordination Action (ICA); Fund for Scientific Research Flanders (FWO); Netherlands Organization for Scientific Research (ZONMW VIDI); National Medical Research Council, Singapore; A Strategic Positioning Fund on Genetic Orphan Diseases (GODAFIT); Industry Alignment Fund on Singapore Childhood Undiagnosed Diseases Program (SUREKids); Biomedical Research Council, A*STAR; Diana and Steve Marienhoff Fashion Industries Guild Endowed Fellowship in Pediatric Neuromuscular Diseases; Fondazione Bambino Gesù (Vite Coraggiose); Canadian Institutes of Health Research; Natural Sciences and Engineering Research Council of Canada; Eurocores Program EuroEPINOMICS; University of Antwerp Research Fund; FRAXA Foundation; Brain & Behavior Research Foundation, NARSAD Young Investigator Grant

Published
2020

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