Seminiferous Tubules

Seminiferous tubules are tightly coiled microscopic structures within the testes where sperm production, or spermatogenesis, occurs, making them central to male reproductive biology. Their specialized lining contains developing germ cells and Sertoli cells, which support germ-cell nutrition, organization, and progression through mitosis, meiosis, and differentiation into spermatozoa; testosterone from nearby Leydig cells and hormonal signaling help regulate this process. Studying seminiferous tubules provides insight into testicular development, fertility, reproductive disorders, and the effects of environmental exposures or medications on sperm production. Their organization also makes them an important model for investigating cell differentiation and tissue function.

Seminiferous Tubules - Related Videos

Research

JoVE EoE - Immune Systems and Components

Isolation of Immune Regulatory Sertoli Cells from Mouse Seminiferous Tubules

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2025

This video demonstrates the isolation procedure of Sertoli cells from mouse seminiferous tubules, a component of the testes. Enzymatic digestion and repeated washes promote the release of Sertoli cells into the solution, which can be cultured further for proliferation and growth.

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model

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Cited by 32 •

2018

The goal of this tubule squash technique is to rapidly assess cytological features of developing mouse spermatocytes while preserving cellular integrity. This method allows for the study of all stages of spermatogenesis, and can be easily implemented alongside other biochemical and molecular biological approaches for the study of mouse meiosis.

Isolation of Primary Human Proximal Tubule Epithelial Cells and Their Use in Creating a Microphysiological Model of the Renal Proximal Tubule

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Cited by 3 •

2025

We present an optimized protocol for processing whole human kidneys to isolate and culture primary renal proximal tubule epithelial cells and the application of these cells in a three-dimensional, microfluidic, microphysiological platform to recapitulate the renal proximal tubule.

Malpighian Tubule Dissection from an Adult Fly: Isolating an Osmoregulatory and Excretory Organ

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2023

This article describes the dissection of the anterior Malpighian tubules (MT) from a female Drosophila fly and an example protocol from Rossano et al. (2017) in which the MTs are prepared for live imaging in a perfusion chamber.

Education

JoVE Core - Anatomy and Physiology

Renal Tubule and Collecting Duct

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2024

The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT). Proximal Convoluted Tubule (PCT): The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...

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