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Cancer stem cells (CSCs) are cancer cells that possess characteristics associated with normal stem cells, specifically the ability to give rise to all cell types found in a particular cancer sample. CSCs are therefore tumorigenic (tumor-forming), perhaps in contrast to other non-tumorigenic cancer cells. CSCs may generate tumors through the stem cell processes of self-renewal and differentiation into multiple cell types. Such cells are hypothesized to persist in tumors as a distinct population and cause relapse and metastasis by giving rise to new tumors. Therefore, development of specific therapies targeted at CSCs holds hope for improvement of survival and quality of life of cancer patients, especially for patients with metastatic disease.
A549 cells are adenocarcinomic human alveolar basal epithelial cells, and constitute a cell line that was first developed in 1972 by D. J. Giard, et al. through the removal and culturing of cancerous lung tissue in the explanted tumor of a 58-year-old caucasian male. The cells are used as models for the study of lung cancer and the development of drug therapies against it.
The epithelial–mesenchymal transition (EMT) is a process by which epithelial cells lose their cell polarity and cell–cell adhesion, and gain migratory and invasive properties to become mesenchymal stem cells; these are multipotent stromal cells that can differentiate into a variety of cell types. EMT is essential for numerous developmental processes including mesoderm formation and neural tube formation. EMT has also been shown to occur in wound healing, in organ fibrosis and in the initiation of metastasis in cancer progression.
An organoid is a miniaturized and simplified version of an organ produced in vitro in three dimensions that shows realistic micro-anatomy. They are derived from one or a few cells from a tissue, embryonic stem cells or induced pluripotent stem cells, which can self-organize in three-dimensional culture owing to their self-renewal and differentiation capacities. The technique for growing organoids has rapidly improved since the early 2010s, and it was named by The Scientist as one of the biggest scientific advancements of 2013. Organoids are used by scientists to study disease and treatments in a laboratory.
Thiamine transporter 2 (ThTr-2), also known as solute carrier family 19 member 3, is a protein that in humans is encoded by the SLC19A3 gene. SLC19A3 is a thiamine transporter.
PC3 (PC-3) is a human prostate cancer cell line used in prostate cancer research and drug development. PC3 cells are useful in investigating biochemical changes in advanced prostate cancer cells and in assessing their response to chemotherapeutic agents. PC3 cells are also used to study viral infection in mammalian cells that exhibit an immune response
DU145 (DU-145) is a human prostate cancer cell line. DU145, PC3, and LNCaP are considered to be the standard prostate cancer cell lines used in therapeutic research.
PDX1, also known as insulin promoter factor 1, is a transcription factor in the ParaHox gene cluster. In vertebrates, Pdx1 is necessary for pancreatic development, including β-cell maturation, and duodenal differentiation. In humans this protein is encoded by the PDX1 gene, which was formerly known as IPF1. The gene was originally identified in the clawed frog Xenopus laevis and is present widely across the evolutionary diversity of bilaterian animals, although it has been lost in evolution in arthropods and nematodes. Despite the gene name being Pdx1, there is no Pdx2 gene in most animals; single-copy Pdx1 orthologs have been identified in all mammals. Coelacanth and cartilaginous fish are, so far, the only vertebrates shown to have two Pdx genes, Pdx1 and Pdx2.
G protein-coupled receptor 56 also known as TM7XN1 is a protein encoded by the ADGRG1 gene. GPR56 is a member of the adhesion GPCR family. Adhesion GPCRs are characterized by an extended extracellular region often possessing N-terminal protein modules that is linked to a TM7 region via a domain known as the GPCR-Autoproteolysis INducing (GAIN) domain.
DNA polymerase beta, also known as POLB, is an enzyme present in eukaryotes. In humans, it is encoded by the POLB gene.
Granulin is a protein that in humans is encoded by the GRN gene. Each granulin protein is cleaved from the precursor progranulin, a 593 amino acid long and 68.5 kDa protein. While the function of progranulin and granulin have yet to be determined, both forms of the protein have been implicated in development, inflammation, cell proliferation and protein homeostasis. The 2006 discovery of the GRN mutation in a population of patients with frontotemporal dementia has spurred much research in uncovering the function and involvement in disease of progranulin in the body. While there is a growing body of research on progranulin's role in the body, studies on specific granulin residues are still limited.
H19 is a gene for a long noncoding RNA, found in humans and elsewhere. H19 has a role in the negative regulation of body weight and cell proliferation. This gene also has a role in the formation of some cancers and in the regulation of gene expression. .
Endoplasmic reticulum-Golgi intermediate compartment protein 2 (ERGIC2) is a gene located on human chromosome 12p11. It encodes a protein of 377 amino acid residues. ERGIC2 protein is also known as PTX1, CDA14 or Erv41.
HT1080 is a fibrosarcoma cell line which has been used extensively in biomedical research. The cell line was created from tissue taken in a biopsy of a fibrosarcoma present in a 35-year-old human male. The patient who supplied the sample had not undergone radio or chemotherapy, making it less likely that unwanted mutations were introduced into the cell line.
Somatic evolution is the accumulation of mutations and epimutations in somatic cells during a lifetime, and the effects of those mutations and epimutations on the fitness of those cells. This evolutionary process has first been shown by the studies of Bert Vogelstein in colon cancer. Somatic evolution is important in the process of aging as well as the development of some diseases, including cancer.
MCF-7 is a breast cancer cell line isolated in 1970 from a 69-year-old White woman. MCF-7 is the acronym of Michigan Cancer Foundation-7, referring to the institute in Detroit where the cell line was established in 1973 by Herbert Soule and co-workers. The Michigan Cancer Foundation is now known as the Barbara Ann Karmanos Cancer Institute.
HCT116 is a human colon cancer cell line used in therapeutic research and drug screenings.
4T1 is a breast cancer cell line derived from the mammary gland tissue of a mouse BALB/c strain. 4T1 cells are epithelial and are resistant to 6-thioguanine. In preclinical research, 4T1 cells have been used to study breast cancer metastasis as they can metastasize to the lung, liver, lymph nodes, brain and bone. The cells are known to be highly aggressive in live tissues.
Calu-3 is a human lung cancer cell line commonly used in cancer research and drug development. Calu-3 cells are epithelial and can act as respiratory models in preclinical applications.
MIA PaCa-2 is a human pancreatic cancer cell line used extensively in pancreatic cancer research and therapy development.
References
- ↑ Tan, Mong H.; et al. (1986). "Characterization of a New Primary Human Pancreatic Tumor Line". Cancer Investigation. 4 (1): 15–23. doi:10.3109/07357908609039823. PMID 3754176.
- ↑ "ECACC General Cell Collection: BxPC-3". Public Health England. Retrieved 25 June 2018.
- ↑ "Cellosaurus BxPC-3 (CVCL_0186)". Cellosaurus. Retrieved 25 June 2018.
- ↑ Berrozpe, G; et al. (15 July 1994). "Comparative analysis of mutations in the p53 and K-ras genes in pancreatic cancer". International Journal of Cancer. 58 (2): 185–191. doi:10.1002/ijc.2910580207. PMID 8026879. S2CID 40118099.
- ↑ Fredebohm, Johannes; et al. (12 November 2012). "Establishment and Characterization of a Highly Tumourigenic and Cancer Stem Cell Enriched Pancreatic Cancer Cell Line as a Well Defined Model System". PLOS ONE. 7 (11): e48503. doi: 10.1371/journal.pone.0048503 . PMC 3495919 . PMID 23152778.
- ↑ Deer, Emily; et al. (May 2010). "Phenotype and Genotype of Pancreatic Cancer Cell Lines". Pancreas. 39 (4): 425–435. doi:10.1097/MPA.0b013e3181c15963. PMC 2860631 . PMID 20418756.