Lumen Like Structures
Lumen Like Structures - Related Videos
03:21
Localized Delivery of Bacteria into the Intestinal Lumen of a Zebrafish Larva Using Microinjection
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2025
Source: Li, J. et al. Development of a Larval Zebrafish Infection Model for Clostridioides difficile. J. Vis. Exp. (2020)This video demonstrates the microinjection-based delivery of fluorescently labeled Clostridioides difficile into the intestinal lumen of an anesthetized zebrafish larva. It outlines the steps involved in larval preparation, bacterial injection, and fluorescence microscopy–based confirmation of bacterial localization within the intestine.
03:36
Gold Immunostaining of Exosomal Sections: A Technique to Visualize Diagnostic Markers in Exosomal Lumen
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2023
In this video, we demonstrate gold immunostaining of biomarkers localized within the lumen region of ultrathin exosomal sections. This technique enables early diagnosis of diseases by visualization of target molecules within the exosomes secreted by the diseased cells.
02:34
Quantification of Group B Streptococcus Load in the Mouse Vaginal Lumen via Swabbing and Chromogenic Culture
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2026
Source: Patras, K. A. & Doran, K. S. A Murine Model of Group B Streptococcus Vaginal Colonization. J. Vis. Exp. (2016)This video demonstrates the quantification of vaginal Group B Streptococcus (GBS) load in a mouse model using swabbing and chromogenic culture. It outlines the steps involved in sample collection, plating, and colony counting to quantify GBS load in the mouse vaginal lumen.
03:21
Gut Acidification Monitoring Assay: A Technique to Study the Acidification of the Intestinal Lumen in Drosophila using Bromophenol Blue Dye
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2025
This video demonstrates an assay to monitor gut acidification in Drosophila flies. After the ingestion of food supplemented with a pH indicator dye, the acidification of the intestinal lumen results in a change in the color of the dye. Visual inspection of the digestive tract of the flies to examine the color change provides evidence of acidification.
12:03
Dynamics of Structures
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2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA It is rare nowadays that a whole year goes by without a major earthquake event wreaking havoc somewhere around the world. In some cases, like the 2005 Banda Ache earthquake in Indonesia, the damage involved large geographic areas and casualties in the six figures. In general, the number and intensity of earthquakes is not increasing, however, the vulnerability of the built environment is...
FAQs
Cell polarity establishes an organized orientation within the developing tissue, while cell-cell junctions connect neighboring cells into a continuous lining. Cytoskeletal remodeling helps cells change shape and position as the cavity forms. Together, these processes create a defined inner surface, which is important for studying tissue architecture in three-dimensional culture.
Extracellular matrix composition provides environmental cues that influence how cells organize and form a cavity. Altering that composition can change morphogenesis, the process by which tissue architecture develops, even when the participating cells remain the same. For bioengineers, matrix-dependent differences offer a way to investigate how tissue surroundings regulate lumen formation and organization.
The fluid-filled space creates an internal compartment with a recognizable inner surface, allowing the model to represent an important spatial feature of tubes, ducts, and glands. That compartment also supports investigations of transport across tissue barriers. Consequently, researchers can connect structural organization with barrier-related behavior rather than evaluating cell arrangement alone.
Researchers can examine whether cells establish a cavity, orient their polarity toward an inner surface, form cell-cell junctions, and remodel the cytoskeleton while interacting with extracellular matrix. Three-dimensional culture supplies the setting for this assessment. Tracking these features helps distinguish organized morphogenesis from simple cell aggregation.
Lumen-like structures support vascular, epithelial, and glandular models because these applications require organized tissue surrounding an internal space. In these contexts, the structures help bioengineers examine tissue architecture and, where relevant, transport across barriers. Their shared spatial organization also provides a common platform for comparing how matrix or signaling changes influence morphogenesis.
Changes in cavity organization, the inner surface, or surrounding tissue can be related to altered morphogenesis, while transport measurements can reveal effects on tissue-barrier function. This approach links experimental perturbations to both structural outcomes and functional behavior in engineered systems, helping researchers determine how environmental or signaling changes reshape tissue organization.
These structures connect three-dimensional cell organization with broader bioengineering goals. They contribute to organoid design, disease modeling, drug testing, and construction of more physiologically relevant engineered tissues. Their value comes from combining a defined internal surface with surrounding tissue, enabling studies that better reflect organized biological architecture than simpler cell arrangements.