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Methods for Studying Drug Absorption: In situ

Methods for Studying Drug Absorption: In situ

In situ experiments, such as the Doluisio method and Single-Pass Perfusion technique, provide critical insights into drug uptake by simulating in vivo conditions for drug absorption.
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Related Experiment Video

Updated: Jun 7, 2026

In Vivo Imaging of Transduction Efficiencies of Cardiac Targeting Peptide

In Vivo Imaging of Transduction Efficiencies of Cardiac Targeting Peptide

Published on: June 11, 2020

Comparison of CPP uptake methods.

Tina Holm¹, Samir E L Andaloussi, Ulo Langel

¹Department of Neurochemistry, Stockholm University, Stockholm, Sweden.

Methods in Molecular Biology (Clifton, N.J.)

|November 6, 2010

Summary

This summary is machine-generated.

Standardized methods are needed to compare cell-penetrating peptides (CPPs) due to hundreds of sequences and varied research approaches. This chapter presents and compares common CPP assessment techniques for better drug delivery vector evaluation.

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In Vivo Imaging of Transduction Efficiencies of Cardiac Targeting Peptide

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Published on: June 11, 2020

Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry

Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry

Published on: March 24, 2023

Area of Science:

Biochemistry
Molecular Biology
Drug Delivery Systems

Background:

The field of cell-penetrating peptides (CPPs) has rapidly expanded over the last 15 years, with hundreds of sequences now published.
Current research focuses on modifying existing CPPs to enhance their efficacy.
Significant challenges exist in comparing the effectiveness of different CPPs due to varied methodologies in assessing uptake and intracellular distribution.

Purpose of the Study:

To address the need for standardized protocols in evaluating CPPs.
To present and compare common methods used for assessing CPP efficacy.
To facilitate more consistent and reliable comparisons of CPP data across research groups.

Main Methods:

Review and comparison of commonly employed techniques for evaluating CPP uptake.
Discussion of methods for assessing intracellular distribution of CPPs.
Analysis of factors influencing CPP assessment, including cell lines, concentrations, and exposure conditions.

Main Results:

Identification of inconsistencies in current CPP assessment protocols across different research groups.
Highlighting the difficulties in directly comparing CPP efficacy data due to methodological variations.
Presentation of a comparative overview of existing CPP evaluation methods.

Conclusions:

Standardized protocols are crucial for the advancement of CPP research and application.
This work aims to guide the development of consensus methods for CPP evaluation.
Improved standardization will enhance the reliable use of CPPs as drug delivery vectors.