Special Issue "Primary and Continued Cell Cultures"

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell Methods".

Deadline for manuscript submissions: 8 July 2025 | Viewed by 7143

Special Issue Editor

1. Center for Cell Reprograming, Departments of Pathology and Oncology, Georgetown University Medical Center, Washington, DC 20057, USA
2. Departments of Pathology and Urology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
Interests: cell reprogramming; telomerase and telomeres; patient-derived models; cell therapies; living biobanks; viruses; cancer
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Special Issue Information

Dear colleagues,

Traditional cancer cell lines and transformed cell lines are widely used in medical research. These cells usually have abnormalities resulting from the original tumor itself, but may also develop abnormalities due to genetic manipulation, or due to genetic and epigenetic changes during long-term passage. Primary cultures may maintain the lineage functions of their original tissue types, yet their life span and population doubling time are limited due to the nature of cellular senescence. Primary cultures usually have low yields and high variability compared to original tissue specimens, limiting their applications in research. Conditional cell reprogramming (CR) makes it possible to rapidly expand and continually culture primary cells from surgical specimens, core or needle biopsies, and other minimally invasive or noninvasive specimens—for example, nasal cavity brushing from a variety of species, including human, mouse, rat, horse, and ferret. These conditionally reprogrammed cells (CRCs) preserve their lineage functions and provide biologically relevant and physiological conditions suitable for studies of toxicity, virology, and tissue repair and the discovery of antiviral or anticancer drugs. This Special Issue will focus on primary cell cultures (protocols, reviews, and original articles) using conditionally reprogrammed cells, organoids, and other recent approaches.

Prof. Dr. Xuefeng Liu
Guest Editor

Manuscript Submission Information

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Keywords

  • primary normal cells
  • primary tumor cells
  • patient-derived cells
  • CRC (conditionally reprogrammed cells)
  • organoids
  • circulating tumor cells
  • human diseases
  • toxicity
  • cancer models
  • drug discovery

Published Papers (3 papers)

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Research

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17 pages, 3985 KiB  
Article
StemRegenin-1 Attenuates Endothelial Progenitor Cell Senescence by Regulating the AhR Pathway-Mediated CYP1A1 and ROS Generation
Cells 2023, 12(15), 2005; https://doi.org/10.3390/cells12152005 - 05 Aug 2023
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Abstract
Endothelial progenitor cell (EPC)-based stem cell therapy is a promising therapeutic strategy for vascular diseases. However, continuous in vitro expansion for clinical studies induces the loss of EPC functionality due to aging. In this study, we investigated the effects of StemRegenin-1 (SR-1), an [...] Read more.
Endothelial progenitor cell (EPC)-based stem cell therapy is a promising therapeutic strategy for vascular diseases. However, continuous in vitro expansion for clinical studies induces the loss of EPC functionality due to aging. In this study, we investigated the effects of StemRegenin-1 (SR-1), an antagonist of aryl hydrocarbon receptor (AhR), on replicative senescence in EPCs. We found that SR-1 maintained the expression of EPC surface markers, including stem cell markers, such as CD34, c-Kit, and CXCR4. Moreover, SR-1 long-term-treated EPCs preserved their characteristics. Subsequently, we demonstrated that SR-1 showed that aging phenotypes were reduced through senescence-associated phenotypes, such as β-galactosidase activity, SMP30, p21, p53, and senescence-associated secretory phenotype (SASP). SR-1 treatment also increased the proliferation, migration, and tube-forming capacity of senescent EPCs. SR-1 inhibited the AhR-mediated cytochrome P450 (CYP)1A1 expression, reactive-oxygen species (ROS) production, and DNA damage under oxidative stress conditions in EPCs. Furthermore, as a result of CYP1A1-induced ROS inhibition, it was found that accumulated intracellular ROS were decreased in senescent EPCs. Finally, an in vivo Matrigel plug assay demonstrated drastically enhanced blood vessel formation via SR-1-treated EPCs. In summary, our results suggest that SR-1 contributes to the protection of EPCs against cellular senescence. Full article
(This article belongs to the Special Issue Primary and Continued Cell Cultures)
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Review

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25 pages, 5252 KiB  
Review
Unlocking Translational Potential: Conditionally Reprogrammed Cells in Advancing Breast Cancer Research
Cells 2023, 12(19), 2388; https://doi.org/10.3390/cells12192388 - 30 Sep 2023
Viewed by 756
Abstract
Preclinical in vitro models play an important role in studying cancer cell biology and facilitating translational research, especially in the identification of drug targets and drug discovery studies. This is particularly relevant in breast cancer, where the global burden of disease is quite [...] Read more.
Preclinical in vitro models play an important role in studying cancer cell biology and facilitating translational research, especially in the identification of drug targets and drug discovery studies. This is particularly relevant in breast cancer, where the global burden of disease is quite high based on prevalence and a relatively high rate of lethality. Predictive tools to select patients who will be responsive to invasive or morbid therapies (radiotherapy, chemotherapy, immunotherapy, and/or surgery) are relatively lacking. To be clinically relevant, a model must accurately replicate the biology and cellular heterogeneity of the primary tumor. Addressing these requirements and overcoming the limitations of most existing cancer cell lines, which are typically derived from a single clone, we have recently developed conditional reprogramming (CR) technology. The CR technology refers to a co-culture system of primary human normal or tumor cells with irradiated murine fibroblasts in the presence of a Rho-associated kinase inhibitor to allow the primary cells to acquire stem cell properties and the ability to proliferate indefinitely in vitro without any exogenous gene or viral transfection. This innovative approach fulfills many of these needs and offers an alternative that surpasses the deficiencies associated with traditional cancer cell lines. These CR cells (CRCs) can be reprogrammed to maintain a highly proliferative state and reproduce the genomic and histological characteristics of the parental tissue. Therefore, CR technology may be a clinically relevant model to test and predict drug sensitivity, conduct gene profile analysis and xenograft research, and undertake personalized medicine. This review discusses studies that have applied CR technology to conduct breast cancer research. Full article
(This article belongs to the Special Issue Primary and Continued Cell Cultures)
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23 pages, 5283 KiB  
Review
A Beginner’s Guide to Cell Culture: Practical Advice for Preventing Needless Problems
Cells 2023, 12(5), 682; https://doi.org/10.3390/cells12050682 - 21 Feb 2023
Cited by 3 | Viewed by 4969
Abstract
The cultivation of cells in a favorable artificial environment has become a versatile tool in cellular and molecular biology. Cultured primary cells and continuous cell lines are indispensable in investigations of basic, biomedical, and translation research. However, despite their important role, cell lines [...] Read more.
The cultivation of cells in a favorable artificial environment has become a versatile tool in cellular and molecular biology. Cultured primary cells and continuous cell lines are indispensable in investigations of basic, biomedical, and translation research. However, despite their important role, cell lines are frequently misidentified or contaminated by other cells, bacteria, fungi, yeast, viruses, or chemicals. In addition, handling and manipulating of cells is associated with specific biological and chemical hazards requiring special safeguards such as biosafety cabinets, enclosed containers, and other specialized protective equipment to minimize the risk of exposure to hazardous materials and to guarantee aseptic work conditions. This review provides a brief introduction about the most common problems encountered in cell culture laboratories and some guidelines on preventing or tackling respective problems. Full article
(This article belongs to the Special Issue Primary and Continued Cell Cultures)
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