A neuroscientist, Dr Shaker received his PhD in 2017 from Korea University, Seoul-South Korea, after working on the cellular behaviour of embryonic neural stem cells during the brain and spinal cord development as well as axial elongation. Dr Shaker obtained the Brain Korea 21 Plus Fellowship from the Korea Univesity Medical School before being appointed in AIBN-UQ to work in Professor Ernst Wolvetang's laboratory as a Postdoctoral Research Fellow in Organoid Biology to continue his research into the importance of modelling the human central nervous system in health and disease using organoid technology. Dr Shaker demonstrated:
1- Successful generation of white matter like tissues in organoids, this tissue is enriched with myelinating oligodendrocytes, neurons and astrocytes (Shaker MR et al, Frontiers in Cellular Neuroscience 2021). This protocol is robust and rapid that involves a 42-day exposure of neuroectoderm-derived organoids to a cocktail of growth factors and small molecules that collectively foster oligodendrocyte specification and survival along with neurons and astrocytes. This platform prompted the discovery of NELL2 expression in human oligodendroglial cell types and NELL2 was further linked with human white mater development and diseases by using artificial intelligence prediction (Shaker MR et al, Frontiers in Cell and Developmental Biology, 2022).
2- Human cortical organoids develop the typical hallmarks of senescent cells when maintained in vitro for prolonged periods of time, and moderate upregulation of endogenous KL expression in cortical organoids inhibits neuronal senescence (Shaker MR et al, NPJ Aging and Mechanisms of Disease 2021). This platform offers new mechanistic insight into its role in human brain ageing.
3- Successful modelling Down Syndrome using patient and isogenic human iPSCs lines with Choroid Plexus-Ventricle-Cortical organoid. (Shaker MR et al, BioRxiv 2023), this model is useful for dissecting the role of the choroid plexus in euploid and DS forebrain development and enables screening for therapeutics that can inhibit SARS-CoV-2 induced neuro-pathogenesis.
Currently, Dr Shaker is working on two main projects:
1- Modelling leukodystrophy using 4 reprogrammed patients' iPSCs lines with an oligodendrocyte brain organoid.
2- Modelling children with defects in neural tube elongation using spinal cord organoids. This research program will use organoid technology combined with cutting-edge transcriptomics techniques to understand the cellular processes driving neural tube elongation. This will improve our capacity to how cells arrange into a continuous elongating neural tube to provide insight into the cause of defects in human neural tube.
Journal Article: Protocol for generating embedding-free brain organoids enriched with oligodendrocytes
Al-mhanawi, Bahaa, Marti, Marta Boira, Morrison, Sean D., Gupta, Pallavi, Alani, Maath, Noakes, Peter G., Wolvetang, Ernst J. and Shaker, Mohammed R. (2023). Protocol for generating embedding-free brain organoids enriched with oligodendrocytes. STAR Protocols, 4 (4) 102725, 102725. doi: 10.1016/j.xpro.2023.102725
Journal Article: Transcriptional Signature of Valproic Acid-Induced Neural Tube Defects in Human Spinal Cord Organoids
Lee, Ju-Hyun, Shaker, Mohammed R., Park, Si-Hyung and Sun, Woong (2023). Transcriptional Signature of Valproic Acid-Induced Neural Tube Defects in Human Spinal Cord Organoids. International Journal of Stem Cells, 16 (4), 385-393. doi: 10.15283/ijsc23012
Conference Publication: Chemogenetic modulation of human in vitro motoneuron development accelerates maturation trajectory and electrophysical properties
Morrison, Sean, Shaker, Mohammed, Pietrogrande, Giovanni, Wolvetang, Ernst and Noakes, Peter (2023). Chemogenetic modulation of human in vitro motoneuron development accelerates maturation trajectory and electrophysical properties. ISN‐ESN 2023 Meeting, Porto, Portugal, 8‐11 August 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
(2022–2024) ELA International
The oligodendrocyte brain organoid models children with leukodystrophy and enables drug screening
(2022–2024) Preclinical and Clinical Early Career Research
Transforming the paradigm of epilepsy care with precision medicine
(2021–2024) NHMRC MRFF Stem Cells Therapies Mission
Elucidating the role of Human Aminoacyl multi- tRNA synthetase complex (MSC) in Hypomyelination with brainstem and spinal cord involvement and leg spasticity (HBSL)
Doctor Philosophy
Understanding neuromuscular synaptic loss in motor neuron disease
Doctor Philosophy
Protocol for generating embedding-free brain organoids enriched with oligodendrocytes
Al-mhanawi, Bahaa, Marti, Marta Boira, Morrison, Sean D., Gupta, Pallavi, Alani, Maath, Noakes, Peter G., Wolvetang, Ernst J. and Shaker, Mohammed R. (2023). Protocol for generating embedding-free brain organoids enriched with oligodendrocytes. STAR Protocols, 4 (4) 102725, 102725. doi: 10.1016/j.xpro.2023.102725
Lee, Ju-Hyun, Shaker, Mohammed R., Park, Si-Hyung and Sun, Woong (2023). Transcriptional Signature of Valproic Acid-Induced Neural Tube Defects in Human Spinal Cord Organoids. International Journal of Stem Cells, 16 (4), 385-393. doi: 10.15283/ijsc23012
Choroid plexus defects in Down syndrome brain organoids enhance neurotropism of SARS-CoV-2
Shaker, Mohammed R., Slonchak, Andrii, Al-mhanawi, Bahaa, Morrison, Sean D., Sng, Julian D. J., Cooper-White, Justin, Khromykh, Alexander A. and Wolvetang, Ernst J. (2023). Choroid plexus defects in Down syndrome brain organoids enhance neurotropism of SARS-CoV-2. bioRxiv. doi: 10.1101/2023.06.12.544552
Shaker, Mohammed R., Hunter, Zoe L. and Wolvetang, Ernst J. (2022). Robust and highly reproducible generation of cortical brain organoids for modelling brain neuronal senescence in vitro. Journal of Visualized Experiments, 2022 (183) e63714. doi: 10.3791/63714
Hunter, Zoe L., Leeson, Hannah C., Shaker, Mohammed R., Wolvetang, Ernst J. and Vadlamudi, Lata (2022). Human induced pluripotent stem cells generated from epilepsy patients for use as in vitro models for drug screening. Stem Cell Research, 60 102673, 102673. doi: 10.1016/j.scr.2022.102673
Production of human spinal-cord organoids recapitulating neural-tube morphogenesis
Lee, Ju-Hyun, Shin, Hyogeun, Shaker, Mohammed R., Kim, Hyun Jung, Park, Si-Hyung, Kim, June Hoan, Lee, Namwon, Kang, Minjin, Cho, Subin, Kwak, Tae Hwan, Kim, Jong Woon, Song, Mi-Ryoung, Kwon, Seung-Hae, Han, Dong Wook, Lee, Sanghyuk, Choi, Se-Young, Rhyu, Im Joo, Kim, Hyun, Geum, Dongho, Cho, Il-Joo and Sun, Woong (2022). Production of human spinal-cord organoids recapitulating neural-tube morphogenesis. Nature Biomedical Engineering, 6 (4), 435-448. doi: 10.1038/s41551-022-00868-4
Neural epidermal growth factor-like like protein 2 is expressed in human oligodendroglial cell types
Shaker, Mohammed R., Kahtan, Amna, Prasad, Renuka, Lee, Ju-Hyun, Pietrogrande, Giovanni, Leeson, Hannah C., Sun, Woong, Wolvetang, Ernst J. and Slonchak, Andrii (2022). Neural epidermal growth factor-like like protein 2 is expressed in human oligodendroglial cell types. Frontiers in Cell and Developmental Biology, 10 803061, 803061. doi: 10.3389/fcell.2022.803061
Hypermethylation of Mest promoter causes aberrant Wnt signaling in patients with Alzheimer's disease
Prasad, Renuka, Jung, Hwajin, Tan, Anderson, Song, Yonghee, Moon, Sungho, Shaker, Mohammed R., Sun, Woong, Lee, Junghee, Ryu, Hoon, Lim, Hyun Kook and Jho, Eek-hoon (2021). Hypermethylation of Mest promoter causes aberrant Wnt signaling in patients with Alzheimer's disease. Scientific Reports, 11 (1) 20075, 20075. doi: 10.1038/s41598-021-99562-9
Hunter, Zoe L., Leeson, Hannah C., Shaker, Mohammed R., Wolvetang, Ernst J. and Vadlamudi, Lata (2021). Generation of induced pluripotent stem cell lines from peripheral blood mononuclear cells of three drug resistant and three drug responsive epilepsy patients. Stem Cell Research, 56 102564, 102564. doi: 10.1016/j.scr.2021.102564
Shaker, Mohammed R., Lee, Ju-Hyun, Kim, Kyung Hyun, Ban, Saeli, Kim, Veronica Jihyun, Kim, Joo Yeon, Lee, Ji Yeoun and Sun, Woong (2021). Spatiotemporal contribution of neuromesodermal progenitor-derived neural cells in the elongation of developing mouse spinal cord. Life Sciences, 282 119393, 1-11. doi: 10.1016/j.lfs.2021.119393
Aguado, Julio, Chaggar, Harman K., Gómez‐Inclán, Cecilia, Shaker, Mohammed R., Leeson, Hannah C., Mackay‐Sim, Alan and Wolvetang, Ernst J. (2021). Inhibition of the cGAS‐STING pathway ameliorates the premature senescence hallmarks of Ataxia‐Telangiectasia brain organoids. Aging Cell, 20 (9) e13468, 1-16. doi: 10.1111/acel.13468
Klotho inhibits neuronal senescence in human brain organoids
Shaker, Mohammed R., Aguado, Julio, Chaggar, Harman Kaur and Wolvetang, Ernst J. (2021). Klotho inhibits neuronal senescence in human brain organoids. npj Aging and Mechanisms of Disease, 7 (1) 18, 1-12. doi: 10.1038/s41514-021-00070-x
Embryonal neuromesodermal progenitors for caudal central nervous system and tissue development
Shaker, Mohammed R., Lee, Ju-Hyun and Sun, Woong (2021). Embryonal neuromesodermal progenitors for caudal central nervous system and tissue development. Journal of Korean Neurosurgical Society, 64 (3), 359-366. doi: 10.3340/jkns.2020.0359
Rapid and efficient generation of myelinating human oligodendrocytes in organoids
Shaker, Mohammed R., Pietrogrande, Giovanni, Martin, Sally, Lee, Ju-Hyun, Woong, Sun and Wolvetang, Ernst J. (2021). Rapid and efficient generation of myelinating human oligodendrocytes in organoids. Frontiers in Cellular Neuroscience, 15 631548, 1-11. doi: 10.3389/fncel.2021.631548
Lee, Ju-Hyun, Shin, Hyogeun, Shaker, Mohammed R., Kim, Hyun Jung, Kim, June Hoan, Lee, Namwon, Kang, Minjin, Cho, Subin, Kwak, Tae Hwan and Sun, Woong (2020). Human spinal cord organoids exhibiting neural tube morphogenesis for a quantifiable drug screening system of neural tube defects.
Shaker, Mohammed R., Lee, Ju-Hyun, Park, Si-Hyung, Kim, Joo Yeon, Son, Gi Hoon, Son, Jong Wan, Park, Bae Ho, Rhyu, Im Joo, Kim, Hyun and Sun, Woong (2020). Anteroposterior Wnt-RA gradient defines adhesion and migration properties of neural progenitors in developing spinal cord. Stem Cell Reports, 15 (4), 898-911. doi: 10.1016/j.stemcr.2020.08.016
Self-organizing 3D human choroid plexus-ventricle-cortical organoids
Shaker, Mohammed R. , Cooper-White, Justin and Wolvetang, Ernst J. (2020). Self-organizing 3D human choroid plexus-ventricle-cortical organoids.
Shaker, Mohammed R. , Lee, Ju-Hyun , Kim, Kyung Hyun , Kim, Veronica Jihyun , Kim, Joo Yeon , Lee, Ji Yeoun and Sun, Woong (2020). Spatiotemporal contribution of neuromesodermal progenitor-derived neural cells in the elongation of developing mouse spinal cord.
NeuroCore formation during differentiation of neurospheres of mouse embryonic neural stem cells
Lee, Ju-Hyun, Shaker, Mohammed R., Lee, Eunsoo, Lee, Boram and Sun, Woong (2020). NeuroCore formation during differentiation of neurospheres of mouse embryonic neural stem cells. Stem Cell Research, 43 101691, 101691. doi: 10.1016/j.scr.2019.101691
High-performance acellular tissue scaffold combined with hydrogel polymers for regenerative medicine
Lee, Eunsoo, Kim, Hyun Jung, Shaker, Mohammed R., Ryu, Jae Ryun, Ham, Min Seok, Seo, Soo Hong, Kim, Dai Hyun, Lee, Kiwon, Jung, Neoncheol, Choe, Youngshik, Son, Gi Hoon, Rhyu, Im Joo, Kim, Hyun and Sun, Woong (2019). High-performance acellular tissue scaffold combined with hydrogel polymers for regenerative medicine. Acs Biomaterials Science and Engineering, 5 (7), 3462-3474. doi: 10.1021/acsbiomaterials.9b00219
Micropillar-based microfluidic device to regulate neurite networks of uniform-sized neurospheres
Kim, Da Eun, Lee, Jong Min, Ahrberg, Christian D., Shaker, Mohammed R., Lee, Ju-Hyun, Sun, Woong and Chung, Bong Geun (2018). Micropillar-based microfluidic device to regulate neurite networks of uniform-sized neurospheres. Electrophoresis, 40 (3), 419-424. doi: 10.1002/elps.201800119
Uniform-sized neurosphere-mediated motoneuron differentiation in microwell arrays
Lee, Jong Min, Moon, Joo Yoon, Shaker, Mohammed R., Sun, Woong and Chung, Bong Geun (2017). Uniform-sized neurosphere-mediated motoneuron differentiation in microwell arrays. Electrophoresis, 38 (24), 3161-3167. doi: 10.1002/elps.201700118
Gunasekaran, Renuka, Shaker, Mohammed Rafid, Mohd-Zin, Siti Waheeda, Abdullah, Aminah, Ahmad-Annuar, Azlina and Abdul-Aziz, Noraishah Mydin (2017). Maternal intake of dietary virgin coconut oil modifies essential fatty acids and causes low body weight and spiky fur in mice. BMC Complementary and Alternative Medicine, 17 (1) 79. doi: 10.1186/s12906-017-1600-z
Kim, Joo Yeon, Shaker, Mohammed R., Lee, Ju-Hyun, Lee, Boram, Kim, Hyun and Sun, Woong (2017). Identification of molecular markers distinguishing adult neural stem cells in the subventricular and subcallosal zones. Animal Cells and Systems, 21 (3), 152-159. doi: 10.1080/19768354.2017.1324522
Yim, Nambin, Ryu, Seung-Wook, Choi, Kyungsun, Lee, Kwang Ryeol, Lee, Seunghee, Choi, Hojun, Kim, Jeongjin, Shaker, Mohammed R., Sun, Woong, Park, Ji-Ho, Kim, Daesoo, Heo, Won Do and Choi, Chulhee (2016). Exosome engineering for efficient intracellular delivery of soluble proteins using optically reversible protein-protein interaction module. Nature Communications, 7 (1) 12277, 12277. doi: 10.1038/ncomms12277
Promotion of Cortical Neurogenesis from the Neural Stem Cells in the Adult Mouse Subcallosal Zone
Kim, Joo Yeon, Choi, Kyuhyun, Shaker, Mohammed R., Lee, Ju-Hyun, Lee, Boram, Lee, Eunsoo, Park, Jae-Yong, Lim, Mi-Sun, Park, Chang-Hwan, Shin, Ki Soon, Kim, Hyun, Geum, Dongho and Sun, Woong (2016). Promotion of Cortical Neurogenesis from the Neural Stem Cells in the Adult Mouse Subcallosal Zone. Stem Cells, 34 (4), 888-901. doi: 10.1002/stem.2276
Kim, Hyun Jung, Shaker, Mohammed R., Cho, Bongki, Cho, Hyo Min, Kim, Hyun, Kim, Joo Yeon and Sun, Woong (2015). Dynamin-related protein 1 controls the migration and neuronal differentiation of subventricular zone-derived neural progenitor cells. Scientific Reports, 5 (1) 15962. doi: 10.1038/srep15962
Shaker, Mohammed R., Kim, Joo Yeon, Kim, Hyun and Sun, Woong (2015). Identification and Characterization of Secondary Neural Tube-Derived Embryonic Neural Stem Cells In Vitro. Stem Cells and Development, 24 (10), 1171-1181. doi: 10.1089/scd.2014.0506
Is There a Risk of Suburban Transmission of Malaria in Selangor, Malaysia?
Braima, Kamil A., Sum, Jia-Siang, Ghazali, Amir-Ridhwan M., Muslimin, Mustakiza, Jeffery, John, Lee, Wenn-Chyau, Shaker, Mohammed R., Elamin, Alaa-Eldeen M., Jamaiah, Ibrahim, Lau, Yee-Ling, Rohela, Mahmud, Kamarulzaman, Adeeba, Sitam, Frankie, Mohd-Noh, Rosnida and Abdul-Aziz, Noraishah M. (2013). Is There a Risk of Suburban Transmission of Malaria in Selangor, Malaysia?. PL o S One, 8 (10) e77924, e77924. doi: 10.1371/journal.pone.0077924
Morrison, Sean, Shaker, Mohammed, Pietrogrande, Giovanni, Wolvetang, Ernst and Noakes, Peter (2023). Chemogenetic modulation of human in vitro motoneuron development accelerates maturation trajectory and electrophysical properties. ISN‐ESN 2023 Meeting, Porto, Portugal, 8‐11 August 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
Human neural organoid model exhibiting early neural tube morphogenesis
Lee, Ju-Hyun, Shaker, Mohammed R., Kim, Hyun Jung, Kim, June Hoan, Shin, Hyogeun, Kang, Minjin, Kwak, Tae Hwan, Rhyu, Im Joo, Kim, Hyun, Han, Dong Wook, Cho, Il-Joo, Geum, Dongho and Sun, Woong (2019). Human neural organoid model exhibiting early neural tube morphogenesis. IBRO World Congress, Daegu, South Korea, 21-25 September 2019. Amsterdam, Netherlands: Elsevier BV. doi: 10.1016/j.ibror.2019.07.678
Lumican is required for axial neural stem cells adhesion gradient and proper spinal cord elongation
Shaker, M. (2019). Lumican is required for axial neural stem cells adhesion gradient and proper spinal cord elongation. ISN-ASN Meeting, Montreal, Canada, 4-8 August 2019. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
Shaker, M., Lee, J. -H. and Sun, W. (2017). Adhesive property of neuromesodermal progenitor-derived neural stem cells is regulated by wnt signalling. ISN-ESN Meeting, Paris, France, 20-24 August, 2017. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing.
(2022–2024) ELA International
The oligodendrocyte brain organoid models children with leukodystrophy and enables drug screening
(2022–2024) Preclinical and Clinical Early Career Research
Transforming the paradigm of epilepsy care with precision medicine
(2021–2024) NHMRC MRFF Stem Cells Therapies Mission
(2021–2022) Motor Neurone Disease Research Institute of Australia Inc
Elucidating the role of Human Aminoacyl multi- tRNA synthetase complex (MSC) in Hypomyelination with brainstem and spinal cord involvement and leg spasticity (HBSL)
Doctor Philosophy — Associate Advisor
Understanding neuromuscular synaptic loss in motor neuron disease
Doctor Philosophy — Associate Advisor