The Wnt pathway is at the heart of organoid technology, which is set to revolutionize the cancer field. We can now predetermine a patient's response to any given anticancer therapy by exposing tumor organoids established from the patient's own tumor. This cutting-edge biomedical platform translates to patients being treated with the correct drug at the correct dose from the outset, a truly personalized and precise medical approach. A high throughput drug screen on organoids also allows drugs to be tested in limitless combinations. More recently, the tumor cells that are resistant to the therapy given to a patient were selected in culture using the patient's organoids. The resistant tumor organoids were then screened empirically to identify drugs that will kill the resistant cells. This information allows diagnosis in real-time to either prevent tumor recurrence or effectively treat the recurring tumor. Furthermore, the ability to culture stem cell-derived epithelium as organoids has enabled us to begin to understand how a stem cell becomes a cancer cell or to pin-point the genetic alteration that underlies a given genetic syndrome. Here we summarize these advances and the central role of Wnt signaling, and identify the next challenges for organoid technology.
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http://dx.doi.org/10.1016/bs.pmbts.2017.11.009 | DOI Listing |
Biotechnol J
December 2024
Department of Biomedical Engineering, Tulane University, New Orleans, USA.
Microphysiological systems (MPS) containing perfusable vascular beds unlock the ability to model tissue-scale elements of vascular physiology and disease in vitro. Access to inexpensive stereolithography (SLA) 3D printers now enables benchtop fabrication of polydimethylsiloxane (PDMS) organ chips, eliminating the need for cleanroom access and microfabrication expertise, and can facilitate broader adoption of MPS approaches in preclinical research. Rapid prototyping of organ chip mold designs accelerates the processes of design, testing, and iteration, but geometric distortion and surface roughness of SLA resin prints can impede the development of standardizable manufacturing workflows.
View Article and Find Full Text PDFJ Chin Med Assoc
December 2024
Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
Background: Induced pluripotent stem cell (iPSC) technology has emerged as a powerful tool for disease modeling, providing an innovative platform for investigating disease mechanisms. iPSC-derived organoids, including retinal organoids, offer patient-specific models that closely replicate in vivo cellular environments, making them ideal for studying retinal neurodegenerative diseases where retinal ganglion cells (RGCs) are impacted. N6-methyladenosine (m6A), a prevalent internal modification in eukaryotic mRNAs, plays a critical role in RNA metabolic processes such as splicing, stability, translation, and transport.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Department of Neonatology, Shenzhen Guangming District People's Hospital, Shenzhen, Guangdong Province, 518107, China. Electronic address:
Background: Streptococcus agalactiae poses a significant threat to neonatal health, causing morbidity and mortality when transmitted from the maternal vagina to the newborn's respiratory tract. Among its various strains, serotype III is predominant in severe neonatal infections in Asia. However, the mechanisms of pathogenesis and host responses underlying serotype-specific disease outcomes remain poorly understood.
View Article and Find Full Text PDFCell Biosci
December 2024
Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Background: c-Jun is a key regulator of gene expression. Through the formation of homo- or heterodimers, c-JUN binds to DNA and regulates gene transcription. While c-Jun plays a crucial role in embryonic development, its impact on nervous system development in higher mammals, especially for some deep structures, for example, thalamus in diencephalon, remains unclear.
View Article and Find Full Text PDFBMC Cancer
December 2024
The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
Ampullary carcinoma (AC) of the intestinal type represents a distinct variant within the broader category of ampullary neoplasms. The scarcity of pertinent cellular models has constrained investigations centered on this particular malignancy. This research effectively generated a cell line (CL) of intestinal-type AC (DPC-X3).
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