Tissue-specific Delivery
Tissue-specific Delivery - Related Videos
11:19
Fabrication of Extracellular Matrix-derived Foams and Microcarriers as Tissue-specific Cell Culture and Delivery Platforms
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Cited by 26 •
2017
The tissue-specific extracellular matrix (ECM) is a key mediator of cell function. This article describes methods for synthesizing pure ECM-derived foams and microcarriers that are stable in culture without the need for chemical crosslinking for applications in advanced 3D in vitro cell culture models or as pro-regenerative bioscaffolds.
03:11
Recombinant Adeno Associated Virus Based Gene Delivery: A Technique for Transgene Delivery and Cardiac-Specific Expression in Rodent Model
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2025
In this video, we demonstrate recombinant adeno associated virus-based gene delivery in the mouse pup. This method helps in studying gene expression in the targeted cells.
05:00
Ex Vivo Culture of Patient Tissue & Examination of Gene Delivery
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Cited by 4 •
2010
This article describes the culture of patient tissue slices for gene delivery studies and subsequent analysis of gene expression using IVIS bioluminescence imaging.
08:00
Intubation-mediated Intratracheal (IMIT) Instillation: A Noninvasive, Lung-specific Delivery System
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Cited by 34 •
2014
Intubation-mediated intratracheal (IMIT) instillation of reagents is an excellent, noninvasive method for studying respiratory disease, as well as a method for instilling therapeutic reagents directly into the lung. It is a rapid and highly reproducible method which is suitable for preclinical testing.
01:20
Magnetic Millirobots for Region-Specific Drug Delivery in the Rat Central Nervous System
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2025
Begin with a harvested rat brain submerged in artificial cerebrospinal fluid in a petri dish.Deposit the magnetic millirobot onto the brain cortex.The millirobot, termed MANiAC, consists of magnetically aligned nickel nanorods embedded within a microcapsule composed of the biocompatible hydrogel alginate and loaded with a dye as a model drug.Position an external magnetic field generator beneath the petri dish to generate a uniform rotating magnetic field.The nickel nanorods align and rotate...
FAQs
Targeting features determine where a delivery vehicle can accumulate and which cells can interact with it. Surface ligands or antibodies provide molecular recognition, whereas physicochemical properties influence circulation and passage across tissue barriers. Selecting among these features therefore affects localization before uptake occurs, helping match the vehicle’s behavior to the intended tissue.
Localization depends on more than recognition at the cell surface. A vehicle must remain in circulation long enough to reach the selected tissue and possess properties that support passage through relevant barriers. These conditions influence how much cargo reaches the target compared with other sites, so they are central variables when tissue exposure and specificity are evaluated.
When a delivery vehicle binds a suitable receptor, the cell can internalize the receptor-cargo complex through receptor-mediated endocytosis, a process that brings material inside the cell. This step connects tissue recognition with intracellular access. In practice, successful targeting requires not only reaching the correct tissue but also enabling uptake by its cells.
Cargo release can be linked to local conditions, including pH or enzyme activity. A vehicle designed to respond to one of these cues may release its contents after localization rather than releasing them uniformly during transport. This adds a second layer of control, because delivery depends on both where the vehicle travels and when the cargo becomes available.
A development workflow begins by selecting the therapeutic cargo and intended tissue, then pairing the cargo with a vehicle that has an appropriate recognition feature or physicochemical profile. Researchers must consider circulation, barrier passage, cellular uptake, and release conditions as connected stages. This sequence helps identify where delivery may succeed or where exposure outside the target could remain.
It is useful when therapeutic activity is needed in a selected tissue while limiting effects elsewhere. The approach supports drug treatment, gene therapy, and regenerative research, each of which may require delivery of therapeutic molecules, genes, or other biological agents. Tissue selection can therefore improve the alignment between where an intervention acts and where its biological effect is wanted.
Key outcomes include how effectively the cargo localizes to the selected tissue, whether target cells internalize it, and whether release occurs under the intended pH or enzyme conditions. Researchers can also examine therapeutic activity alongside exposure in non-target tissues. Together, these observations indicate whether targeting improved precision and reduced off-target effects.