Viscum album
What's the taxonomical classification of Viscum album?
Viscum album belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is placed in the class Equisetopsida and the subclass Magnoliidae. The plant follows the order Santalales and is a member of the family Santalaceae. Finally, its taxonomic hierarchy is completed by its designation within the genus Viscum and the specific species album.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Santalales |
| Family | Santalaceae |
| Genus | Viscum |
| Species | album |
What are the morphological characteristics of this plant?
Viscum album has evergreen, leathery, oblong leaves that grow in opposite pairs along a woody, branched stem. The plant lacks true roots, instead using a specialized haustorium to penetrate the host tree for nutrients. Its small, inconspicuous flowers are typically yellowish-green and are borne in clusters at the ends of branches. During the fruiting stage, the plant produces translucent, white or yellowish berries that are highly attractive to birds. These berries are held in small clusters that remain visible throughout the winter months.
What is the geographical distribution of this plant?
This plant is native to a broad range spanning much of Europe, western Asia, and parts of northern Africa. Its presence is heavily influenced by the availability of host trees, which dictates its specific localized clusters. In many temperate regions, it can be found from the Mediterranean basin up through much of the British Isles and into Scandinavia. Certain subspecies have also established themselves in more varied climates, showing a remarkable ability to adapt to different woodland environments. Its distribution is often patchy because it relies on specific avian species for seed dispersal between isolated tree canopies.
How is this plant cultivated?
This plant, commonly known as European mistletoe, is a hemiparasite that is cultivated by attaching its roots to the branches of host trees such as apple, hawthorn, or birch.
Because it relies on a living host for water and minerals, cultivation requires careful selection of a suitable tree species to ensure the parasite thrives without killing its support. Growers typically propagate the plant by collecting ripe berries and manually rubbing the sticky seeds onto host limbs to facilitate attachment. Once established, the mistletoe remains evergreen and requires regular monitoring to manage its growth and prevent it from overtaxing the host's resources.
Proper environmental conditions, including sufficient sunlight and moderate moisture, are essential for maintaining healthy clusters in a cultivated setting.
What parts of this plant are used medicinally?
This plant, Viscum album, is utilized medicinally through its whole plant, including the berries, branches, leaves, and seeds. The berries and leaves are frequently harvested to create extracts used in various traditional therapies. Medicinal preparations often incorporate the branches to derive specific bioactive compounds. While the seeds are a component of the organism, they are used with extreme caution due to their high toxicity. Overall, the entire structure of the mistletoe provides the various elements necessary for its pharmacological applications.
According to a study published by "Scientific reports", Viscum album L. is an important medicinal plant traditionally used to treat several diseases, including cancer therapy. The plant features green leaves, stems, and berries that are utilized for these purposes. The dioecious inflorescences usually consist of 3-flowered cymes with 3 flowers, where female flowers generate white fleshy berries containing 1 seed embedded in a mucilaginous mesocarp that normally contains 2 embryos. Anatomically, the leaves possess a midrib with a single vascular bundle and a strongly shortened petiole containing 5 bundles. The stems show a primary structure with a ring of 9 vascular bundles enclosing the pith.
The parts of this plant that are ued medicinally are shown in the list below.
- berries
- branches
- leaves
- seeds
- whole plant
What traditional systems uses this plant?
This plant, known as European mistletoe, has been utilized across various historical medical traditions to treat a wide range of ailments including respiratory issues and neurological conditions. In Anthroposophical medicine, Viscum album is prepared as a specialized remedy used primarily in cancer therapy to support the body's immune response and enhance the therapeutic effects of other treatments. Historically, different cultures employed the plant in folk medicine to address inflammation and various skin disorders. Practitioners of these traditional systems often focused on the plant's unique parasitic nature to influence the biological processes of the patient. The specific preparation methods, such as creating tinctures or infusions, vary significantly depending on the specific traditional school of thought being applied.
According to a study published by "Alternative therapies in health and medicine", total extracts of Viscum album have been developed in anthroposophical medicine to treat cancer patients. Iscador is the oldest such product and is the most commonly used oncological drug in Germany. In a cohort study involving 10,226 cancer patients, 1668 patients were treated with Iscador compared to 8475 control patients. Within a pool of 396 matched pairs, the mean survival time for Iscador groups was 4.23 years, which was roughly 40% longer than the 3.05 years observed in control groups. Patients with good self-regulation showed a 56% relative survival advantage compared to the control group.
The hystorical systems that uses this plant are shown in the list below.
- Anthroposophical medicine
What are the pharmacological activities of Viscum album?
This plant has anti-tumor, immunomodulatory, and apoptosis-inducing pharmacological activities that allow it to function as a potent biological response modifier. It works primarily by stimulating the host's immune system to better recognize and combat malignant cells. One of its key mechanisms is the significant enhancement of NK cytotoxicity, which strengthens the body's natural killer cell response. Furthermore, the bioactive compounds in the plant can trigger programmed cell death within cancerous tissues. These combined effects make it a subject of intense study in integrative oncology.
According to a study published by "Extracellular vesicles and circulating nucleic acids", Viscum album L. contains a large number of miRNAs associated with human diseases such as cancer, cardiovascular diseases, and neurological disorders. One specific miRNA, val-miR218, shows high potential anti-cancer effects against osteosarcoma by inhibiting cell growth and arresting cells in the G0/G1 phase. Through RNA-seq, 61 genes were identified as the direct targets of val-miR218. These targets relate to essential cellular functions including cell cycle, DNA replication, and cell morphology. Additionally, mistletoe extracellular vesicles offer val-miR218 protection and facilitate the uptake of val-miR281 by human cells. The study demonstrates that val-miR218 provides significant anti-tumor effects in vivo and inhibits proliferation in various tumor cell lines in vitro.
The primary pharmacological activities of this plant are shown in the list below.
- 1. NK cytotoxicity enhancement
- 2. anti-tumor
- 3. immunomodulatory
- 4. apoptosis induction
- 5. adjuvant cancer therapy
What medicinal compounds this plant contains?
This plant contains several potent medicinal compounds including Viscum album agglutinin, Viscumin, Viscotoxin, Mistletoe lectin, and Thionin. Viscum album agglutinin and Mistletoe lectin are categorized as lectins that can bind to specific carbohydrates on cell surfaces. Viscumin serves as a specialized enzyme that facilitates the cleavage of certain proteins within the plant. Viscotoxin is a small protein known for its ability to disrupt cell membranes and induce apoptosis in cancer cells. Thionin further contributes to the plant's bioactive profile through its specific toxicological properties. These diverse constituents work together to produce the complex pharmacological effects associated with mistletoe extracts.
According to a study published by "Natural immunity", the plant Viscum album contains the lectin Viscum album agglutinin-I (VAA-I) and its recombinant form (rVAA). In 24-hour cultures of PBMC, 10 ng/ml of VAA-I and 50 ng/ml of rVAA induced significant increases in the secretion of total IL-12 and its p70 form. Preincubation with rVAA in concentrations ranging between 10 pg/ml and 100 pg/ml resulted in moderate enhancements of NK-mediated cytotoxicity, while a low dose of 100 pg/ml combined with 60 U/ml of IL-2 and 2 U/ml of IL-12 led to additive stimulation. Following a single intravenous injection of 0.5 and 1 ng/kg of rVAA into Wistar rats, NK cytotoxicity against YAC-1 targets doubled. These doses also caused 2.1- and 3-fold increases in the frequency of large granular lymphocytes in peripheral blood compared to control animals. Additionally, 0.5 ng/kg of rVAA induced a significant augmentation in the percentage of peripheral Mac-1+ mononuclear cells after 48 h.
The primary medicinal compounds of this plant are shown in the list below.
- Viscum album agglutinin
- Viscumin
- Viscotoxin
- Mistletoe lectin
- Thioinin
What health conditions is this plant used for?
This plant is used for treating various types of cancer, malignant diseases, tumors, lymphoma, and leukemia. In homeopathic medicine, it is frequently applied to manage growths and abnormal cellular development within the body. Practitioners often utilize it to address specific hematological conditions such as leukemia and lymphoma. It is also frequently indicated for the management of solid tumors and other forms of malignant diseases. This botanical remedy aims to support the body through these serious systemic health challenges.
According to a study published by "American journal of therapeuetics", Viscum album is used as an unconventional anticancer and immunomodulating therapy. The study evaluated its use in 16 HIV-positive patients and 8 healthy subjects over a period of 6 to 8 months. Doses were administered twice per week subcutaneously in amounts of 0.01 mg, 0.1 mg, 1.0 mg, 2.0 mg, 5.0 mg, and 0.1 mg/kg for 2-6 weeks per dose. None of the 16 HIV-positive patients progressed in disease stage during the administration. Although side effects like fever and eosinophilia occurred, they were never severe.
The main health conditions this plant is used for are shown in the list below.
- cancer
- malignant diseases
- tumor
- lymphoma
- leukemia
What are the herbal preparations of this plant?
This plant is Viscum album, a parasitic mistletoe used to create specialized medicinal preparations including 80% ethanol extracts, bacterially fermented mistletoe preparations, Helixor, Iscador, and Viscum album Quercus Frischsaft. These various formulations are primarily utilized in integrative oncology to support the body's immune response during cancer treatments. Different extraction methods and host plant combinations, such as the use of oak in the Quercus variant, alter the specific bioactive profile of each remedy. Clinicians select between these standardized products based on the patient's specific needs and the desired therapeutic effect. These preparations play a significant role in complementary medicine protocols worldwide.
According to a study published by "Experientia", bacterially fermented mistletoe preparations were tested on rat hepatoma tissue culture cells and human leukemia Molt 4 cells. A dose-dependent inhibition of the growth rate of the cells was observed for these preparations. Samples withdrawn at different times during fermentation showed that action on HTC cells increased up to the 4th day of fermentation. These mistletoe preparations showed a different effect compared to non-fermented extracts and a purified mistletoe lectin, which showed a greater inhibition of the growth of Molt 4 cells than of HTC cells. The results are discussed in relation to the cytotoxic substances of mistletoe already characterized.
The main herbal preparations of this plant are shown in the list below.
- 80% ethanol extracts
- Bacterially fermented mistletoe preparations
- Helixor
- Iscador
- Viscum album Quercus Frischsaft
What side effects this plant can have?
This plant can cause severe health side effects including anaphylactic reaction, cardiovascular collapse, dizziness, fainting, and liver injury. Individuals consuming viscum album may experience sudden drops in blood pressure that lead to fainting or extreme dizziness. In severe cases, the body may undergo a life-threatening anaphylactic reaction that results in rapid cardiovascular collapse. Long-term or excessive use has also been linked to the development of significant liver injury. These toxic effects make the plant highly dangerous if not managed with extreme caution.
According to a study published by "AntiCancer Research", the treatment of 16 patients with mistletoe involved subcutaneous injections of 1 ng per kg body weight twice a week. Apart from one anaphylactic reaction, which necessitated suspension of treatment for a few days, no severe side effects were observed. While no partial or complete remission was seen, 8 patients or 50% showed a status of no change for at least 8 weeks. The median survival time for all patients was 5.6 months, with a range of 1.5 to 26.5 months. All except 2 patients claimed that mistletoe had a positive effect on their quality of life.
The main side effects this plant can have are shown in the list below.
- anaphylactic reaction
- cardiovascular collapse
- dizziness
- fainness
- liver injury
What herbs are paired with Viscum album?
This plant Viscum album is most commonly paired with rosemary, lavender, and elderberry in traditional herbal preparations.
These combinations are often utilized to create synergistic effects within therapeutic tinctures or topical salves. Rosemary is frequently added to enhance circulatory stimulation when using mistletoe extracts. Lavender provides a soothing aromatic profile that balances the potency of the plant during aromatherapy applications.
Additionally, elderberry can be integrated into wellness blends to support the body's natural defenses.