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Updated: May 7, 2026

Enrichment and Characterization of the Tumor Immune and Non-immune Microenvironments in Established Subcutaneous Murine Tumors

Enrichment and Characterization of the Tumor Immune and Non-immune Microenvironments in Established Subcutaneous Murine Tumors

Published on: June 7, 2018

Structural evaluation and analyses of tumor differentiation factor.

Urmi Roy¹, Alisa G Woods, Izabela Sokolowska

¹Structural Biology Unit, Biochemistry and Proteomics Group, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY, 13699-5810, USA.

The Protein Journal

|September 17, 2013

Summary

Tumor differentiation factor (TDF) is a pituitary protein. Molecular dynamics simulations explored TDF

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Area of Science:

Biochemistry
Structural Biology
Molecular Dynamics

Background:

Tumor differentiation factor (TDF) is a pituitary-produced protein with an unelucidated mechanism of action.
The TDF protein lacks homology with known proteins, and its crystal structure is unavailable.
The TDF receptor has been identified, but its interaction with TDF remains unclear.

Purpose of the Study:

To investigate the structural properties of the TDF protein.
To evaluate the structural stability of a model TDF structure over time.
To explore time-dependent structural changes in TDF's cysteine residues.

Main Methods:

Molecular dynamics (MD) simulation of a model TDF structure.
Analysis of structural stability as a function of simulation time.

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Enrichment and Characterization of the Tumor Immune and Non-immune Microenvironments in Established Subcutaneous Murine Tumors

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Examination of the dynamic behavior of four specific cysteine residues within the TDF model.

Main Results:

The molecular dynamics simulation provided insights into the structural dynamics of TDF.
The study evaluated the structural stability of the TDF model over the simulated period.
Time-dependent structural changes, particularly involving cysteine residues, were observed and analyzed.

Conclusions:

Molecular dynamics simulations are a valuable tool for studying the structure of underexplored proteins like TDF.
The findings offer preliminary insights into TDF's structural behavior, aiding future research.
Further investigation is warranted to fully elucidate TDF's structure-function relationship and mechanism of action.