Cephalotaxus harringtonia
Cephalotaxus harringtonia · Accepted scientific name
Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆
Cephalotaxus harringtonia is a significant botanical species recognized for its diverse pharmacological potential in medicinal research. The plant's leaves and stems are frequently utilized to create various preparations, including heartwood and ethanolic extracts. These extracts contain potent chemical compounds such as harringtonine, homoharringtonine, and Taiwanhomoflavone A. Scientific studies highlight its impressive anticancer and anticarcinomic activities, particularly in relation to conditions involving Cathepsin L. Furthermore, the plant exhibits beneficial antiinflammatory and antiedemic properties, making it a subject of great interest in oncology and immunology.
- Synonyms
- Cephalotaxus Harringtonia Lusus Koraiana · Cephalotaxus Harringtonia Var. Koraiana · 29 more
- Common names
- Not available
- Family
- Cephalotaxaceae
- Distribution
- Not available
- Plant Parts
- Leaf · Stem
Classification
Common Names
Cephalotaxus harringtonia is a versatile evergreen known by a variety of regional and linguistic identifiers. In Spanish-speaking contexts, it is frequently referred to as Cefalotasso di Harrington or Cefalotaxo drupáceo. German speakers recognize the species as Chinesische Kopfeibe, while French nomenclature identifies it as Céphalotaxus d'Harrington. Additionally, the plant is sometimes known by the name Druebarlind in certain botanical circles. Understanding these diverse common names is essential for accurately identifying this species across different cultures.
Sources: Catalogue of Life (COL)
Synonyms
Cephalotaxus harringtonia is a botanical subject characterized by a complex web of taxonomic synonyms. It is frequently identified in scientific literature under the name Cephalotaxus buergeri. Furthermore, the plant is closely linked to Cephalotaxus drupacea, which serves as a primary synonym for the species. This relationship extends to several specific forms, including the varieties f. fastigiata and f. sphaeralis. Ultimately, these overlapping designations, such as Cephalotaxus drupacea var. harringtonia, highlight the intricate nomenclature surrounding this evergreen.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Cephalotaxus harringtonia is a distinctive plant belonging to the vast kingdom Plantae. Within this biological realm, it is classified under the class Equisetopsida. Its specific evolutionary lineage places it in the order Pinales, a group of significant importance in botanical studies. The species is further categorized into the family Cephalotaxaceae, showcasing its unique structural characteristics. Ultimately, it finds its place within the genus Cephalotaxus, defining its precise botanical identity.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Pinidae |
| Order | Pinales |
| Family | Cephalotaxaceae |
| Genus | Cephalotaxus |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Cephalotaxus harringtonia is a notable species primarily distributed throughout the temperate regions of Asia. Within China, its presence is widespread, stretching from the north-central provinces to the south-central and southeastern territories. The plant also makes an appearance on the tropical island of Hainan, showcasing its adaptable range. Beyond mainland China, the species extends its reach into Eastern Asia, where it can be found growing in Japan. This broad geographic footprint highlights the significant role the species plays within its diverse Asian habitats.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Cephalotaxus harringtonia grows in a distinct shrub form, providing structural beauty to any landscape. As a self-supporting species, it maintains its upright posture without the need for external assistance.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Cephalotaxus harringtonia is recognized as a significant plant source in the ongoing search for effective natural anticancer agents. Scientific reviews highlight this species among several other clinically important plants used in the treatment of various forms of cancer. Its medicinal value is further supported by the broader biological potential found within the Cephalotaxus genus, which includes the isolation of potent compounds. Specifically, research into related species has identified novel biflavones that exhibit strong cytotoxic activity against diverse cancer cell lines. Consequently, these findings underscore the therapeutic importance of this plant in modern pharmacological studies.
Compounds
Cephalotaxus harringtonia is a plant species of significant biochemical interest due to its diverse array of secondary metabolites. Research indicates that the species contains several specialized compounds, including the homoerythrina alkaloid C-3-epi-wilsonione and the alkaloid cephalotaxine. Additionally, the plant serves as a source for the stereoisomer desmethylcephalotaxinone. Investigations into its chemical profile have also identified the presence of unique flavones such as taiwanhomoflavone A and taiwanhomoflavone C. These various alkaloids and flavonoids highlight the complex chemical composition and potential medicinal value of the plant.
Conditions
Cephalotaxus harringtonia demonstrates significant therapeutic potential by inhibiting FoxO1 and 3a activity. Specifically, the plant extracts and their constituent harringtonine alkaloids effectively treat FoxO1 and 3a activity within C2C12 myotubes. This action further extends to treating the expression of target atrophy genes associated with these transcription factors. Additionally, the plant's influence is seen in its ability to treat atrophy-related gene expression in these muscle cells. While the provided text also notes the cytotoxicity of a related species against COLO-205 colon carcinoma, Cephalotaxus harringtonia is primarily highlighted for its modulation of muscle atrophy pathways.
Preparations
Cephalotaxus harringtonia is prepared as various plant extracts that demonstrate potent inhibitory activities against FoxO1 and FoxO3a. These specific extracts from the plant are evaluated for their ability to suppress the expression of atrophy-related target genes in C2C12 myotubes. Additionally, the species is prepared as an ethanolic extract to study the effects of its constituent harringtonine alkaloids. Research also indicates that Cephalotaxus harringtonia is prepared as leaves and heartwood for the isolation of diverse chemical compounds. Through these different preparations, scientists can better understand the pharmacological potential of the plant's secondary metabolites.
Parts used
Cephalotaxus harringtonia is a plant species characterized by several distinct anatomical structures. Specifically, the plant features leaves that serve as important sites for the isolation of various alkaloids and flavonoids. In addition to its foliage, the plant possesses a stem that can yield novel bioactive compounds such as C-methylated biflavones. These different parts of the plant are frequently studied due to their potential cytotoxic activities against various cancer cell lines. Understanding the relationship between these specific organs and their chemical constituents is essential for botanical research.