Podocyte Calcium Imaging
Podocyte Calcium Imaging - Related Videos
12:19
Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli
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Cited by 25 •
2015
Changes in the intracellular calcium levels in the podocytes are one of the most important means to control the filtration function of glomeruli. Here we explain a high-throughput approach that allows detection of real-time calcium handling and single ion channels activity in the podocytes of the freshly isolated glomeruli.
04:19
Deriving Human Kidney Podocytes from Induced Pluripotent Stem Cells: A Procedure for Directed Differentiation of Mature Kidney Podocytes from Stem Cells
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2023
In this video, we describe the protocol to derive human kidney podocytes from induced pluripotent stem cells through cell differentiation under defined chemical conditions. The generated podocytes can be used for nephrotoxicity testing and disease modeling.
08:43
Calcium Imaging in Neurons
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2023
Calcium ions play an integral role in neuron function: They act as intracellular signals that can elicit responses such as altered gene expression and neurotransmitter release from synaptic vesicles. Within the cell, calcium concentration is highly dynamic due to the presence of pumps that selectively transport these ions in response to a variety of signals. Calcium imaging takes advantage of intracellular calcium flux to directly visualize calcium signaling in living neurons.This video begins...
07:45
Imaging Calcium in Drosophila at Egg Activation
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Cited by 6 •
2016
This article describes an adaptable ex vivo protocol for visualizing Ca2+ during egg activation in Drosophila.
11:06
In vivo Neuronal Calcium Imaging in C. elegans
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Cited by 20 •
2013
With its small transparent body, well-documented neuroanatomy and a host of amenable genetic techniques and reagents, C. elegans makes an ideal model organism for in vivo neuronal imaging using relatively simple, low-cost techniques. Here we describe single neuron imaging within intact adult animals using genetically encoded fluorescent calcium indicators.
FAQs
Fluorescent calcium indicators report intracellular calcium through a measurable optical change: calcium binding alters either fluorescence intensity or the emitted wavelength. Time-lapse microscopy then follows that signal in living podocytes or tissue, making it possible to examine when calcium changes occur and how they evolve. This temporal information is important because podocyte responses may change during mechanical, hormonal, or injury-related stimulation.
Calcium measurements become more informative when interpreted alongside podocyte structure and function. Changes in intracellular calcium can be linked to cytoskeletal remodeling, cell contraction, and the condition of the glomerular filtration barrier. Tracking signals over time therefore helps researchers ask whether a stimulus is associated with functional changes in podocytes rather than simply recording that calcium is present.
Mechanical forces, hormones, and injury can each influence podocyte calcium responses, providing distinct biological contexts for imaging experiments. Comparing the resulting signal changes helps researchers investigate how podocytes react to conditions that affect their structure and function. The method is especially useful for connecting an external challenge with downstream changes in contraction, cytoskeletal organization, or filtration-barrier integrity.
An experiment uses fluorescent calcium indicators together with microscopy to observe podocytes in living cells or tissue. Researchers monitor the indicator’s intensity or wavelength as conditions change, then relate those optical changes to intracellular calcium responses. This workflow preserves the time dimension of signaling, allowing observations to be connected with exposure to mechanical forces, hormones, injury, or other relevant stimuli.
By following calcium dynamics while assessing podocyte behavior, the method can associate intracellular signaling with cytoskeletal remodeling and cell contraction. Those relationships are relevant to the glomerular filtration barrier, which podocytes help maintain. Consequently, imaging can reveal how calcium-linked responses may accompany changes in podocyte structure and barrier integrity, rather than treating calcium signals as an isolated measurement.
It is useful when researchers need to connect podocyte responses to disease-related injury or to other conditions that may disrupt filtration-barrier function. Calcium measurements provide a way to study signaling alongside structural and functional consequences in these specialized kidney cells. The resulting relationships can support investigation of glomerular disease mechanisms and help identify calcium-related processes as potential therapeutic targets.