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| Berbamine — berbamine is a natural bisbenzylisoquinoline alkaloid with pleiotropic anticancer signaling activity. It is best classified as a plant-derived small-molecule natural product and investigational anticancer lead rather than an approved oncology drug. Standard abbreviation: BBM. It is chiefly isolated from Berberis species, especially Berberis amurensis, and has also been reported in other alkaloid-containing medicinal plants. The strongest mechanistic signal in cancer appears to be inhibition of CaMKIIγ-centered survival signaling, with downstream effects on c-Myc, STAT3, β-catenin, PI3K/Akt-related survival programs, apoptosis, and in some models ROS-linked stress responses. Clinical oncology translation remains limited; most evidence is preclinical, and formulation constraints have been noted because native berbamine has limited tumor-site exposure and short plasma persistence in vivo. Primary mechanisms (ranked):
Bioavailability / PK relevance: Native berbamine appears PK-limited for systemic oncology use. Multiple papers describe short plasma half-life or poor tumor-site exposure as a practical limitation, which is one reason nanoparticle and derivative strategies have been pursued. I did not find a robust modern human PK package for parent berbamine suitable for quantitative clinical extrapolation; stronger PK data were easier to find for derivatives than for the native compound. In-vitro vs systemic exposure relevance: Many mechanistic cancer studies use micromolar in-vitro concentrations, often around 5–20 μM and sometimes higher. That makes direct translation to achievable free systemic exposure uncertain for native berbamine. Mechanistic direction is plausible, but potency-to-exposure matching remains a major translational bottleneck unless formulation or structural optimization is used. Clinical evidence status: Preclinical for cancer. Evidence includes cell culture and xenograft studies across leukemia and several solid tumors, plus medicinal-chemistry optimization work on derivatives. I did not find established randomized oncology trials or standard clinical deployment for cancer treatment. Berbamine is a bisbenzylisoquinoline alkaloid, meaning it is composed of two benzylisoquinoline moieties. Its unique structure distinguishes it from many other natural alkaloids Berbamine is most often isolated from the plant Berberis, commonly known as barberry. Various species within this genus have been used in traditional Chinese medicine and other herbal traditions. plants in genera like Stephania have also been reported to contain bisbenzylisoquinoline alkaloids like berbamine. These plants are used in various parts of Asia both for their stimulant effects and other medicinal purposes.Oxidative Stress: Berbamine can increase the production of reactive oxygen species within cancer cells. Elevated ROS levels may push cancer cells beyond their threshold of tolerance, leading to oxidative stress–induced cell death. This property also ties in with its ability to modulate apoptosis and autophagy. Berbamine is a promising natural compound with multifaceted anticancer properties. Its ability to induce apoptosis, cause cell cycle arrest, modulate key signal transduction pathways (such as JAK/STAT, NF-κB, and PI3K/Akt/mTOR), and affect autophagy, makes it a candidate for further investigation in various cancer models. A calcium channel blocker. Mechanistic relevance in cancer
P: 0–30 min |
| Source: TCGA |
| Type: Antiapoptotic |
| Nrf2 is responsible for regulating an extensive panel of antioxidant enzymes involved in the detoxification and elimination of oxidative stress. Thought of as "Master Regulator" of antioxidant response. -One way to estimate Nrf2 induction is through the expression of NQO1. NQO1, the most potent inducer: SFN 0.2 μM, quercetin (2.5 μM), curcumin (2.7 μM), Silymarin (3.6 μM), tamoxifen (5.9 μM), genistein (6.2 μM ), beta-carotene (7.2μM), lutein (17 μM), resveratrol (21 μM), indol-3-carbinol (50 μM), chlorophyll (250 μM), alpha-cryptoxanthin (1.8 mM), and zeaxanthin (2.2 mM) 1. Raising Nrf2 enhances the cell's antioxidant defenses and ↓ROS. This strategy is used to decrease chemo-radio side effects. 2. Downregulating Nrf2 lowers antioxidant defenses and ↑ROS. In cancer cells this leads to DNA damage, and cell death. 3. However there are some cases where increasing Nrf2 paradoxically causes an increase in ROS (cancer cells). Such as cases of Mitochondial overload, signal crosstalk, reductive stress -In some cases, Nrf2 is overexpressed in cancer cells, which can lead to the activation of genes involved in cell proliferation, angiogenesis, and metastasis. This can contribute to the development of resistance to chemotherapy and targeted therapies. -Increased Nrf2 expression: Lung, Breast, Colorectal, Prostrate. Decreased Nrf2 expression: Skine, Liver, Pancreatic. -Nrf2 is a cytoprotective transcription factor which demonstrated both a negative effect as well as a positive effect on cancer - "promotes Nrf2 translocation from the cytoplasm to the nucleus," means facilitates the movement of Nrf2 into the nucleus, thereby enhancing the cell's antioxidant and cytoprotective responses. -Major regulator of Nrf2 activity in cells is the cytosolic inhibitor Keap1. Nrf2 Inhibitors and Activators Nrf2 Inhibitors: Brusatol, Luteolin, Trigonelline, VitC, Retinoic acid, Chrysin Nrf2 Activators: SFN, OPZ EGCG, Resveratrol, DATS, CUR, CDDO, Api - potent Nrf2 inducers from plants include sulforaphane, curcumin, EGCG, resveratrol, caffeic acid phenethyl ester, wasabi, cafestol and kahweol (coffee), cinnamon, ginger, garlic, lycopene, rosemany Nrf2 plays dual roles in that it can protect normal tissues against oxidative damage and can act as an oncogenic protein in tumor tissue. – In healthy tissues, NRF2 activation helps protect cells from oxidative damage and maintains cellular homeostasis. – In many cancers, constitutive activation of NRF2 (often through mutations in NRF2 itself or loss-of-function mutations in KEAP1) leads to an enhanced antioxidant capacity. – This upregulation can promote tumor cell survival by enabling cancer cells to thrive under oxidative stress, resist chemotherapeutic agents, and sustain metabolic reprogramming. – Elevated NRF2 levels have been implicated in promoting tumor growth, metastasis, and resistance to therapy in various malignancies. – High or sustained NRF2 activity is frequently associated with aggressive tumor phenotypes, poorer prognosis, and decreased overall survival in several cancer types. – While its activation is essential for protecting normal cells from oxidative stress, aberrant or sustained NRF2 activation in tumor cells can lead to enhanced survival, therapeutic resistance, and tumor progression. NRF2 inhibitors: (to decrease antioxidant defenses and increase cell death from ROS). -Brusatol: most cited natural inhibitors of Nrf2. -Luteolin: luteolin can reduce Nrf2 activity in specific cancer models and may enhance cell sensitivity to chemotherapy. However, luteolin is also known as an antioxidant, and its influence on Nrf2 can sometimes be context dependent. -Apigenin: certain studies to down‑regulate Nrf2 in cancer cells: Dose and context dependent . -Oridonin: -Wogonin: although its effects might be cell‑ and dose‑specific. - Withaferin A |
| - | in-vivo, | Stroke, | NA |
| 5551- | BBM, | Berbamine Suppresses the Progression of Bladder Cancer by Modulating the ROS/NF-κB Axis |
| - | vitro+vivo, | Bladder, | NA |
| 5536- | BBM, | Regulation of Cell-Signaling Pathways by Berbamine in Different Cancers |
| - | Review, | Var, | NA |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
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