BioImpacts. 2021;11(2): 111-117.
doi: 10.34172/bi.2021.18
PMID: 33842281
PMCID: PMC8022235
  Abstract View: 242
  PDF Download: 147

Original Research

Role of cellulose family in fibril organization of collagen for forming 3D cancer spheroids: In vitro and in silico approach

Elaheh Dalir Abdolahinia 1,2, Behzad Jafari 3, Sepideh Parvizpour 2, Jaleh Barar 2,4 ORCID logo, Samad Nadri 5*, Yadollah Omidi 6* ORCID logo

1 Department of Medical Biotechnology, Zanjan University of Medical Sciences, Zanjan, Iran
2 Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
3 Department of Medicinal Chemistry, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
4 Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
5 Department of Medical Nanotechnology, Zanjan University of Medical Sciences, Zanjan, Iran
6 Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, USA
Corresponding authors: Samad Nadri, Email: nadri_s@zums.ac.ir; Yadollah Omidi, Email: yomidi@tbzmed.ac.ir nadri_s@zums.ac.ir


Introduction: Cell aggregation of three-dimensional (3D) culture systems (the so-called spheroids) are designed as in vitro platform to represent more accurately the in vivo environment for drug discovery by using semi-solid media. The uniform multicellular tumor spheroids can be generated based on the interaction of cells with extracellular matrix (ECM) macromolecules such as collagen and integrin. This study aimed to investigate the possible interactions between the cellulose family and collagen using both in vitro and in silico approaches.
Methods: The 3D microtissue of JIMT-1 cells was generated using hanging drop method to study the effects of charge and viscosity of the medium containing cellulose family. To determine the mode of interaction between cellulose derivatives (CDs) and collagen-integrin, docking analysis and molecular simulation were further performed using open source web servers and chemical simulations (GROMACS), respectively.
Results: The results confirmed that the addition of CDs into the 3D medium can promote the formation of solid spheroids, where methylcellulose (MC) yielded uniform spheroids compared to carboxymethyl cellulose (CMC). Moreover, the computational analysis showed that MC interacted with both integrin and collagen, while sodium carboxymethyl cellulose (NaCMC) only interacted with collagen residues. The stated different behaviors in the 3D culture formation and collagen interaction were found in the physicochemical properties of CDs.
Conclusion: Based on in vitro and in silico findings, MC is suggested as an important ECM-mimicking entity that can support the semi-solid medium and promote the formation of the uniform spheroid in the 3D culture.
Keywords: Spheroid, Methylcellulose, Sodium carboxymethylcellulose, Collagen, Integrin, 3D cell culture, Tumoroid
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Submitted: 22 Feb 2020
Revision: 13 Aug 2020
Accepted: 17 Aug 2020
ePublished: 02 Nov 2020
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