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cGMP, feeder-free maintenance medium for human ES and iPS cells
Need a high-quality cell source? Choose from our hiPSC healthy control lines, manufactured with mTeSRâ„¢ Plus.
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What Our Scientist Says
It makes me proud knowing that my work is critical to keeping thousands of hPSC lines reliably healthy and consistent around the world.
Arwen HunterAssociate Director, Stem Cell Biology
Overview
Data Figures
Protocols and Documentation
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
The Certificate of Analysis for this product has been updated for newly released materials. To access respective CoAs please use this tool.
Applications
This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.
Resources and Publications
Educational Materials (41)
Publications (1849)
Improving cellular fitness of human stem cell-derived islets under hypoxia
Nature Communications 2025 May
Abstract
Stem cell-derived islet cell therapy can effectively treat type 1 diabetes, but its efficacy is hindered by low oxygen supply post-transplantation, particularly in subcutaneous spaces and encapsulation devices, leading to cell dysfunction. The response to hypoxia and effective strategies to alleviate its detrimental effects remain poorly understood. Here, we show that ? cells within stem cell-derived islets gradually undergo a decline in cell identity and metabolic function in hypoxia. This is linked to reduced expression of immediate early genes (EGR1, FOS, and JUN), which downregulates key ? cell transcription factors. We further identified genes important for maintaining ? cell fitness in hypoxia, with EDN3 as a potent player. Elevated EDN3 expression preserves ? cell identity and function in hypoxia by modulating genes involved in ? cell maturation, glucose sensing and regulation. These insights improve the understanding of hypoxia’s impact on stem cell-derived islets, offering a potential intervention for clinical applications. Hypoxia impairs the efficacy of stem cell-derived islet cell therapy, making it a potential barrier for treatment of type 1 diabetes. Wang et al. identify EDN3 as a key factor that preserves ? cell identity and function in hypoxia, offering possible strategies to improve therapeutic outcomes.
Evidence that minocycline treatment confounds the interpretation of neurofilament as a biomarker
Brain Communications 2025 May
Abstract
AbstractNeurofilament light (NfL) concentration in CSF and blood serves as an important biomarker in neurology drug development. Changes in NfL are generally assumed to reflect changes in neuronal damage, while little is known about the clearance of NfL from biofluids. In a study of asymptomatic individuals at risk for prion disease, both blood and CSF NfL spiked in one participant following a 6-week course of minocycline, absent any other biomarker changes and without subsequent onset of symptoms. We subsequently observed high NfL after minocycline treatment in discarded clinical plasma samples from inpatients, in mouse plasma and in conditioned media from neuron–microglia co-cultures. The specificity and kinetics of NfL response lead us to hypothesize that minocycline does not cause or exacerbate neuronal damage, but instead affects NfL by inhibiting its clearance, posing a potential confounder for the interpretation of this important biomarker. Gentile et al. report that treatment with the drug minocycline may cause neurofilament light concentration to rise in CSF and blood. This effect appears mediated by changes in clearance of the protein, rather than release from tissue, confounding this biomarker normally held to report on neuronal health. Graphical Abstract
Graphical Abstract
Optimized AAV capsids for basal ganglia diseases show robust potency and distribution
Nature Communications 2025 May
Abstract
Huntington’s disease and other disorders of the basal ganglia create challenges for biomolecule-based medicines given the poor accessibility of these deep brain structures following intracerebral or intravascular delivery. Here, we found that low dose, low volume delivery of unbiased AAV libraries into the globus pallidus allowed recovery of novel capsids capable of broad access to key deep brain and cortical structures relevant for human therapies. One such capsid, AAV-DB-3, provided transduction of up to 45% of medium spiny neurons in the adult NHP striatum, along with substantial transduction of relevant deep layer neurons in the cortex. Notably, AAV-DB-3 behaved similarly in mice as in NHPs and potently transduced human neurons derived from induced pluripotent stem cells. Thus, AAV-DB-3 provides a unique AAV for network level brain gene therapies that translates up and down the evolutionary scale for preclinical studies and eventual clinical use. To date, brain gene therapies require high vector doses. Here, authors devised an AAV capsid screen and found variants with unprecedented potency for transduction of deep brain and cortical neurons and human iPSC-neurons with cell tropism relevant for Huntington’s and Parkinson’s disease.
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Need a high-quality cell source? Choose from our hiPSC healthy control lines, manufactured with mTeSRâ„¢ Plus.
Legal Statement:
This product was developed under license to intellectual property owned by WiCellâ„¢ Research Institute. This product is sold for research use only (whether the buyer is an academic or for-profit entity) under a non-transferable, limited-use license. Purchase of this product does not include the right to sell, use or otherwise transfer this product for commercial purposes (i.e., any activity undertaken for consideration, such as use of this product for manufacturing, or resale of this product or any materials made using this product, or use of this product or any materials made using this product to provide services) or clinical use (i.e., administration of this product or any material using this product to humans) or the right to implant any material made using this product into an animal by, or in collaboration with, a for-profit entity, for purposes other than basic pre-clinical research applications (including without limitation teratoma assays) to validate the function of the cells. Purchasers who do not agree to the terms and conditions set forth above should return the product in acceptable conditions to the seller for a refund.
This product was developed under license to intellectual property owned by WiCellâ„¢ Research Institute. This product is sold for research use only (whether the buyer is an academic or for-profit entity) under a non-transferable, limited-use license. Purchase of this product does not include the right to sell, use or otherwise transfer this product for commercial purposes (i.e., any activity undertaken for consideration, such as use of this product for manufacturing, or resale of this product or any materials made using this product, or use of this product or any materials made using this product to provide services) or clinical use (i.e., administration of this product or any material using this product to humans) or the right to implant any material made using this product into an animal by, or in collaboration with, a for-profit entity, for purposes other than basic pre-clinical research applications (including without limitation teratoma assays) to validate the function of the cells. Purchasers who do not agree to the terms and conditions set forth above should return the product in acceptable conditions to the seller for a refund.
Quality Statement:
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT º£½ÇÆƽâ°æ, REFER TO WWW.º£½ÇÆƽâ°æ.COM/COMPLIANCE.
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT º£½ÇÆƽâ°æ, REFER TO WWW.º£½ÇÆƽâ°æ.COM/COMPLIANCE.
