Related Experiment Video
Updated: Jan 25, 2026
05:45
Author Spotlight: Integrating Organoid Models with Single-Cell and Spatial Transcriptomics Technologies
Published on: March 29, 2024
3.4K
Generation, transcriptome profiling, and functional validation of cone-rich human retinal organoids.
Sangbae Kim1, Albert Lowe2,3, Rachayata Dharmat1
1Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030.
Summary
Researchers developed cone-rich human retinal organoids from stem cells. These organoids mimic retinal development and offer valuable resources for studying macular degeneration and vision loss.
Area of Science:
- Ophthalmology
- Developmental Biology
- Stem Cell Biology
Background:
- Macular degenerations cause incurable vision loss, impacting central vision and acuity.
- Cone photoreceptors, crucial for sharp vision, are concentrated in the macula.
- Human embryonic stem cells (hESCs) offer potential for regenerative medicine in retinal diseases.
Purpose of the Study:
- To generate and characterize cone-rich human retinal organoids using an improved differentiation system.
- To create a valuable resource for studying retinal development and diseases like macular degeneration.
- To validate the functional and transcriptomic similarity of organoid-derived cells to native retinal cells.
Main Methods:
- Human embryonic stem cells (hESCs) were differentiated into retinal organoids using an improved system.
- Aggregates formed cysts, which were passaged and developed into retinal progenitor cell colonies.
- Retinal progenitor cells self-assembled into organoids, differentiated into stratified retinal tissue, and were analyzed via transcriptomics and electrophysiology.
Main Results:
- The differentiation system successfully generated cone-rich retinal organoids.
- Transcriptome profiling confirmed that in vitro retinogenesis recapitulates in vivo development.
- Single-cell RNA sequencing revealed cone and rod clusters, with organoid cones showing similar transcriptomes and electrophysiological function to macular cones.
Conclusions:
- Cone-rich human retinal organoids were successfully established using an improved differentiation protocol.
- These organoids serve as a valuable resource for studying retinal development and diseases.
- The established transcriptomic reference aids in understanding retinal cell biology and disease mechanisms.
Related Concept Videos
01:29Reliability and Validity
13.8K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.8K
01:03Data Validation
6.4K
Data validation is an essential part of a comprehensive assessment. Validation is confirming or verifying and opening the door to gathering more assessment data as it clarifies vague or unclear data. The process of checking and verifying the collected information is called data validation. The primary purpose of data validation is to ensure data is as free from error, bias, and misinterpretation as possible.
Nursing assessment guides are generally based on holistic models rather than medical...
Nursing assessment guides are generally based on holistic models rather than medical...
6.4K
01:15Data Validation
713
Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
Key parameters for method validation include:
Key parameters for method validation include:
713
01:25Compounds Essential to Human Function
10.1K
The human body is composed of cells that are fundamentally made up of several different molecules. These molecules are essential to carry out all physiological processes in the body and are broadly classified into organic and inorganic based on their chemical structures.
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
10.1K
02:24Ribosome Profiling
4.1K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
4.1K
01:25Formulating and Validating Nursing Diagnosis II
3.6K
Nursing diagnoses represent a problem validated by major defining characteristics. There are four categories of nursing diagnoses: problem-focused, risk, health promotion or wellness, and syndrome. The anatomy of a nursing diagnosis includes three components: problem statement or diagnostic label, defining characteristics, and related factors.
Risk nursing diagnoses represent clinical judgments of an individual, family, or community more vulnerable to developing the health problem than others...
Risk nursing diagnoses represent clinical judgments of an individual, family, or community more vulnerable to developing the health problem than others...
3.6K