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Dr. Apostolou’s team is working to create a stem cell genetic model which will allow them to control the amount of KAT6A and KAT6B proteins available in a cell. This will allow them to see how different amounts of these proteins affect cell development and highlight future potential therapeutic targets. The group is committed to making their model available to the broader research community. (This study is fully funded by an anonymous donor.)
This study leverages patient-derived induced pluripotent stem cell (iPSC) lines to investigate how specific KAT6B variants contribute to the phenotypic divergence between Genitopatellar Syndrome (GPS) and Say-Barber-Biesecker-Young-Simpson syndrome (SBBYSS). Brain-like cells grown from patient samples will help researchers understand condition-specific development and open the door to personalized therapies.
Dr. Arboleda’s team is creating new, KAT6A variant-specific mouse models to study how different types of KAT6A variants affect brain development and behavior. Based on data from their lab, they will test therapies to see if it can help improve symptoms in mice with severe KAT6A mutations. This study brings us closer to testing treatments that target the specific effects of different mutations in people.
This project seeks biomarkers in blood and brain tissues to further understand how cognitive function develops in KAT6A with the hope that we will be able to use this information to measure disease progression and treatment success. This work is building on multi-Omic work that we are doing in the lab to characterize KAT6A models of mice and KAT6A human cortical neuron experiments. We are hoping to understand the impact of KAT6A on brain function in mice and whether carnitine treatment improves this, paving the way for future human trials. Together, these studies will help get us closer to starting clinical trials in people with KAT6A syndrome.
Dr. Bodamer is launching a new clinical program for patients with KAT6A and KAT6B syndromes at Boston Children’s Hospital. The team will collect detailed health data and samples from patients to better understand the natural course of these conditions. They’ll also search for unique biomarkers that could help doctors know when a treatment is working. This project combines high-quality patient care with research aimed at preparing for future clinical trials. Learn more, and schedule an appointment.
This research examines how KAT6 mutations affect gene regulation in brain, gut, and blood cells. The team will use an advanced method to see how these cells’ “epigenetic landscapes” (chemical markers that control gene activity) are different from healthy cells. It may also identify blood-based biomarkers for easier monitoring of disease progression and treatment.
Focusing on the CA3 hippocampal region linked to memory, this study uses patient-derived stem cells to uncover how brain cell development is altered in KAT6 syndromes. The goal is to find points for therapeutic intervention.
This project is focused on characterizing the effects of different KAT6A and KAT6B mutations on protein structure and important protein functions such as binding with protein partners and acetylation. They will do this first characterization by isolating the proteins and studying them in test tubes. Dr. Shakeel’s team will then see how these changes in function lead to downstream changes to actual cells. (This study is fully funded by an anonymous donor.)
KAT6 Foundation has built lasting partnerships with leading research institutions across the United States and around the world. These collaborations go beyond funding—they have deepened our understanding of KAT6 syndromes, accelerated scientific progress, and strengthened our global community. We are proud to continue supporting the dedicated researchers who share our vision for better outcomes and brighter futures.
The KAT6A/KAT6B Patient Registry launched in 2019 through the National Organization of Rare Diseases (NORD). It is the first longitudinal study of KAT6 syndromes. Our registry collects valuable data about many aspects of KAT6 syndromes, enabling researchers to understand the full range of KAT6 characteristics and to identify areas for additional studies. Most importantly, the KAT6 Foundation owns the data we collect, which allows us more control around directing research and sharing information. The KAT6 Foundation also analyzes our patient registry data and shares it with our patient families, helping families better understand and support their loved ones.
In 2022, the KAT6 Foundation and collaborators established the first patient-derived induced Pluripotent Stem Cells (iPSC) bank for KAT6A and KAT6B variants. Dr. Angie Serrano, stores and maintains biospecimens, such as, skin and blood samples of KAT6A and KAT6B patients at Boston University. These cells are shared with qualified researchers to develop disease models and screen potential therapies.
Read the KAT6 BioBank Status Report and tour Serrano Lab at the Center for Regenerative Medicine.
Dr. Valerie Arboleda’s lab leads foundational research into the genetics and phenotype of KAT6 syndromes. Using CRISPR technology and patient-derived stem cells, her team investigates how KAT6 gene variants affect gene regulation and cellular development.
In 2015, Dr. Arboleda published the first clinical description of KAT6A syndrome in the study De Novo Nonsense Mutations in KAT6A, a Lysine Acetyl-Transferase Gene, Cause a Syndrome Including Microcephaly and Global Developmental Delay. She followed this with the largest published cohort study of KAT6A to date: KAT6A Syndrome: Genotype–Phenotype Correlation in 76 Patients with Pathogenic KAT6A Variants (2019).
Expanding her research to KAT6B, Dr. Arboleda published Novel Variants in KAT6B Spectrum of Disorders Expand our Knowledge of Clinical Manifestations and Molecular Mechanisms in 2021. This study analyzed a new, previously unpublished cohort and provided critical insights into how KAT6B mutations influence gene expression and phenotype.
Together with the Asociación KAT6A in Spain, the KAT6 foundation supports research underway at Centro Andaluz de Biología del Desarrollo (CABD) in Sevilla, Spain. Dr. Jose Antonio Sánchez-Alcázar and his team are studying fibroblast cell growth and the mechanics and workings of the mitochondria, which is the engine of every cell. In this study, researchers used cellular models of the syndrome and found that supplementing with pantothenate (vitamin B5) and L-carnitine improved certain cellular dysfunctions associated with the condition. These findings suggest that such supplementation could be a promising therapeutic approach for individuals with KAT6A syndrome. Read the article.
In collaboration with the Rare Diseases Models and Mechanisms (RDMM) Network, this study is using CRISPR gene-editing technology to develop Drosophila melanogaster (fruit fly) models to investigate the neurological effects of KAT6A and KAT6B mutations. Led by Dr. David Marcogliese, the research includes drug screening and post-developmental analyses aimed at uncovering the roles of KAT6A and KAT6B in neuronal function. The findings are expected to highlight conserved molecular pathways that could serve as promising targets for future therapeutic development. Learn more about this project.
This research explores how KAT6A impacts brain function, with a focus on the hippocampal CA3 region—critical for memory. In 2024, Drs. Liu and Qiu discovered that KAT6A regulates the gene Rspo2, which plays a key role in activating Wnt signaling pathways essential for learning and memory. Restoring Rspo2 expression in mice with KAT6A mutations led to improved memory and brain function, pointing to a promising treatment approach for KAT6A syndrome. Their findings were published in the article KAT6A deficiency impairs cognitive functions through suppressing RSPO2/Wnt signaling in hippocampal CA3. Ongoing research is evaluating the effects of Wnt agonists in this mouse model and investigating how KAT6A mutations may influence vocalization and autism-related behaviors.
Dr. Yehuda Assaraf of Technion Institute in Israel has been studying KAT6A gene mutations since 2017. His most recent research identified dysregulation in glycolysis and mitochondrial respiration in patient-derived fibroblasts, contributing to our understanding of cellular metabolism in KAT6A-related neurodevelopmental disorders. Read Assaraf’s 2024 report.
An international crowdsourcing initiative gathered input from families, researchers, and clinicians to define and rank research priorities. Outcomes from this project continue to shape the foundation’s funding strategy.


Dr. Sarah Donoghue is an experienced pediatrician and clinical geneticist with specialized training in neurodevelopmental disability and metabolic genetics. She studied medicine at the University of Tasmania, graduating with honors, and has completed extensive pediatric and clinical genetics training, including fellowships at The Royal Children’s Hospital in Brisbane and Melbourne. Her clinical focus includes treatable causes of intellectual disability, complex developmental disorders, and the management of metabolic conditions in children and adults. Dr. Donoghue is currently pursuing a PhD investigating potential treatments that influence metabolism in chromatin machinery disorders and has published multiple peer-reviewed articles in her field. She is a member of national and international genetics and metabolism societies and works closely with families to support diagnosis, management, and further investigations for developmental and intellectual disabilities.

Gilles Maussion is a Research Associate at McGill University specializing in developmental, cellular, and molecular biology applied to neurological and psychiatric disorders. He completed his education at the University Paris V René Descartes, where his PhD focused on molecular deregulations in the autistic brain and the subcellular mechanisms affected by these changes. In 2009, he joined the McGill Group for Suicide Studies as a postdoctoral fellow, gaining experience with human post-mortem brain samples and projects in epigenetics, microRNA, and non-coding RNA research. Since 2012, he has been part of the McGill Psychiatric Genetics Group, developing expertise in induced pluripotent stem cells and neuronal models to study molecular phenotypes associated with psychiatric disorders. His work combines developmental biology and mental health research to better understand the cellular and molecular mechanisms underlying brain function.

Dr. Mostoslavsky received his MD from the University of Tucuman in Argentina and his PhD from the Hebrew University in Jerusalem, Israel. His longstanding interest in basic science and regenerative medicine brought him to Harvard Medical School to pursue postdoctoral studies with stem cells and gene therapy. In 2008 Dr. Mostoslavsky opened his own lab at Boston University. He is currently Professor of Medicine in the Section of Gastroenterology in the Department of Medicine at Boston University School of Medicine. His main research interests are stem cells, disease modeling, regenerative medicine, gene correction and lentiviral vectors as tools for gene transfer. Dr. Mostoslavsky is a founder and Co-Director of the BU Center for Regenerative Medicine (CReM).

Shabih Shakeel is Lab Head at WEHI and an Associate Professor at the University of Melbourne, where he studies gene regulation using structural biology approaches. His research focuses on understanding virus-host interactions and the molecular mechanisms that control gene expression, employing techniques such as electron cryo-microscopy, electron cryo-tomography, and mass spectrometry. At WEHI, he leads a team applying these methods to uncover new insights into cellular regulation and therapeutic targets. His previous experience includes postdoctoral research on picornavirus structure and entry at the University of Helsinki and an MRC Career Development Fellowship at the MRC Laboratory of Molecular Biology. Shabih holds master’s degrees in Biotechnology and Computer Science from Jamia Millia Islamia and a PhD from the University of Helsinki.

Dr. Thomas M. Durcan is an Associate Professor within the Montreal Neurological Institute (The Neuro) and McGill University. He is also Director of the Neuro’s Early Drug Discovery Unit (EDDU), focused on the use of human induced pluripotent stem cells (iPSCs) for fundamental and translational discovery project through partnerships with academia and industry. Founded under a decade ago, the group has established a cohort of 240+ iPSCs that have been advanced across different target or therapeutic assessment projects within the group and used to generate a wide range of neuronal and glial subtypes, in addition to more advanced 3D brain organoid models. In the context of KAT6A and KAT6B syndromes, his research is focused on the development and characterization of CA3 hippocampal neurons and how mutations in KAT6A or KAT6B might influence their normal function.

Faïza Benaliouad has completed her PhD in Neuroscience at the University of Montreal and then continued her research on the neural circuit of reward as a postdoctoral fellow at the National Institute on Drug Abuse in Baltimore, Maryland. Following her fellowship, Faïza joined the Department of Pharmacology and Therapeutics of McGill University to develop in vivo assays with FRET biosensors to study bias signaling of G-protein coupled receptors and to implement primary neural culture. Currently, Faïza is working within the High-Content Screening (HCS) group to develop assays with iPSCs-derived neural progenitor cells (NPCs) and NPC-derived neurons. She is also doing HCS of compound libraries.
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Effie Apostolou is an Associate Professor of Molecular Biology at Weill Cornell Medicine with prior training on transcriptional regulation (PhD in Athens, Greece) and reprogramming (postdoc in Mass General Hospital and Harvard Stem Cell Institute). Her group investigates the critical interplay between 3D chromatin organization, epigenetic modulators and transcription during either (i) maintenance of cell fate (self-renewal) or (ii) during transition to a new fate during reprogramming, differentiation or tumorigenesis. The Apostolou group has made important contributions in dissecting the mechanisms that ensure faithful propagation of stem cell identity after cell division and functionally interrogated the role of mitotic bookmarking in this process (Molecular Cell, 2021; Stem Cell Reports 2020; Cell Reports 2017). In parallel, by generating cell-type specific 3D enhancer-promoter networks, her group recently identified complex hyperconnected 3D hubs topological assemblies as potential regulatory centers of cell identity, responsible for the coordinated and robust activation of multiple, cell-type specific gene expression modules (Molecular Cell 2025, Nature Structural and Molecular Biology, 2024, Nature Cell Biology 2019). Effie Apostolou has received several awards, including Jane Coffin Child Foundation and EMBO postdoctoral fellowships, the NIH Director’s New Innovator award, and the Emerging Leader award from the Mark Foundation.

Dr. Voss investigates the genetic regulation of embryonic development, adult stem cells, and cancer with emphasis on chromatin modifications. She is Joint Head of the Epigenetics and Development Division at WEHI and has led major translational research initiatives.

Dr. Xiang-Jiao Yang’s research centers on understanding how physiological and environmental signals enter individual cells in multicellular organisms and influence chromatin structure and gene expression in both normal and diseased states. His work focuses on deciphering the function and regulation of histone-modifying enzymes, particularly histone acetyltransferases and deacetylases. KAT6A and KAT6B are histone acetyltransferases, and a growing area of research in his laboratory explores how these enzymes and their regulators contribute to stem cell self-renewal and differentiation.

Dr Miya St John is a post-doctoral researcher and speech pathologist, with a background in speech pathology, genetics and neurodevelopmental conditions. She has been a researcher in the Speech and Language Group at the Murdoch Children’s Research Institute since 2016 as a Masters student, research assistant, PhD candidate and now a post-doctoral researcher in her own right. She has published key research on communication profiles in KAT6A and KAT6B gene variations.

Dr. Angie Serrano leads a research program at the Serrano Lab within Boston University’s Center for Regenerative Medicine, focused on understanding the cellular and molecular mechanisms underlying rare, epigenetic-based disorders, including Kabuki syndrome and KAT6 syndromes. She established and maintains the KAT6 iPSC Bank, a critical resource supporting research across the rare disease community. Her work uses innovative disease models, including zebrafish and human iPSC-derived organoids, to study neurodevelopment and blood vessel formation.
Dr. Serrano is committed to advancing rare disease research through interdisciplinary collaboration, mentoring, and advocacy for diversity, equity, and inclusion, while strengthening connections between researchers, clinicians, and patient communities.

Dr. Sadikovic’s research centers on clinical epigenomics and DNA methylation episignatures for diagnosing genetic conditions. His work has demonstrated diagnostic utility for KAT6A and KAT6B mutations and led to the commercialization of the EpiSign analysis pipeline.

Dr. Qiu is an assistant professor and principal investigator of the Qiu Lab at Johns Hopkins University School of Medicine. His research focuses on ion channels and their roles in neurological disease, including discoveries with implications for stroke, cancer, and inflammation.

Dr. Ng is a pediatric neurologist whose research focuses on social-affective and cognitive development associated with genetic and neurological disorders. In collaboration with colleagues, she is studying the neuropsychological profile of children with KAT6A and KAT6B gene variations beginning in early infancy.

Dr. Marcogliese’s research focuses on unraveling the molecular and cellular mechanisms underlying neurological diseases using Drosophila melanogaster as a model organism. His work centers on developing mutant fruit fly models to study variants in the KAT6A and KAT6B genes and screen potential drug therapies.

Dr. Liu is a postdoctoral fellow in the Department of Physiology at Johns Hopkins School of Medicine and a member of the Qiu Lab. His research focuses on understanding the role of epigenetic factors in the brain. In 2024, Dr. Liu and colleagues discovered that KAT6A plays a key role in supporting brain connections essential for memory and learning.

Dr. Harris specializes in patients with genetic and epigenetic disorders with neurologic and cognitive manifestations including Kabuki syndrome, Rubinstein-Taybi syndrome, Wiedemann-Steiner syndrome, Angelman syndrome, Kleefstra syndrome, Sotos syndrome, and KAT6A syndrome. Dr. Harris is interested in genetic and epigenetic causes of neurodevelopmental disorders and how specific genetic and epigenetic changes lead to specific neuroanatomic, neurophysiologic and cognitive phenotypes.

Dr. Kelley is the former director of Kennedy Krieger Institute’s Clinical Mass Spectrometry Laboratory. He is also a professor of pediatrics at Johns Hopkins University. Dr. Kelley’s research has focused on the elucidation of the biochemical basis of genetic disorders. Through biochemical analysis and mass spectrometry, Dr. Kelley has discovered the biochemical cause of more than a dozen diseases.

Dr. Campeau and his team used exome sequencing to discover that a variant in the KAT6B gene causes genitopatellar syndrome (GPS), a finding published in 2012. Today, his lab focuses on epilepsy, epigenetic, and skeletal diseases, identifying disease-causing genes, understanding disease mechanisms, and improving care for affected children. Their work has uncovered genetic causes for several conditions, including GPS (KAT6B), a form of osteopetrosis (SLC29A3), osteogenesis imperfecta and early-onset osteoporosis (WNT1), Yunis-Varon syndrome (FIG4), and DOORS syndrome (TBC1D24). They are currently using murine models to further explore the functions of these genes.

Dr. Arboleda is a physician and scientist trained in human genetics, genomics and clinical pathology. The overarching research goals in her lab is to integrate large-scale data sets to improve our biological understanding and clinical treatment of human disease. Dr. Arboleda says “In no other time in human history, we have such rich biological and clinical data, the bioinformatics tools to explore these relationships on a large scale, and the molecular genetic tools to rapidly, experimentally validate findings in model systems.”

Dr. Yehuda G. Assaraf has special expertise in the molecular basis of anticancer drug resistance and novel strategies to overcome multidrug resistance phenomena. Professor Assaraf was the Dean of the Faculty of Biology at the Technion Institute in Israel from 2012 to 2019. He is currently serving as the Head of the Fred Wyszkowski Cancer Research Lab. Since 2017, Dr. Assaraf has been conducting multiplex analysis of the KAT6A mutation in children, including analysis of transcriptomics, interactomics, proteomics, and metabolomics in dermal fibroblasts and lymphocytes. In collaboration with the KAT6 Foundation, he is launching a metabolomics analysis on dermal fibroblasts from multiple patients harboring KAT6 mutations.

Dr. Sánchez Alcázar’s lab has four lines of investigation: i) Role and modulation of autophagy and mitophagy in Mitochondrial disease physiopathology; ii) Apoptosis; iii) Lysosomal diseases; and iv) Molecular characterization of Neurodegeneration Brain Iron Accumulation (NBIA). Dr. Sánchez-Alcázar and his team led the Brain Cure project launched in 2014. Through this project, his team applies the concept of personalized medicine to develop treatment programs for rare genetic disorders.