Publications by authors named "Suman Kumar Samanta"

: Lung cancer is one of the deadliest cancers, and drug resistance complicates its treatment. Mahanine (MH), an alkaloid from has been known for its anti-cancer properties. However, its effectiveness and mechanisms in treating non-small cell lung cancer (NSCLC) remain largely unexplored.

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  • * The study used techniques like Western blotting and ELISA to analyze MH's effects on breast cancer cells, showing it reduces cell viability in both drug-sensitive and resistant cancer cell lines.
  • * Results indicate that MH works synergistically with tamoxifen in estrogen receptor-positive cells and inhibits specific cell cycle regulatory genes, while also reducing serum leptin levels and preventing tumor development in rats over a 12-week period.
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Preventive measures to lower the prevalence of type-2 diabetes development using dietary phytochemicals are most realistic. A phytochemical composite derived from whole grain scented joha rice (PCKJ), which is indigenous to the North-eastern Region, India, was investigated to understand its preventive efficacy in rats in which type 2 diabetes was induced using a high-fat high-fructose (HFHF) diet and a low dose of streptozotocin, and the findings were correlated with those in L6-myotubes. Studies on cultured L6 myotubes revealed that treatment with PCKJ facilitated glucose uptake and GLUT-4 translocation to the plasma membrane, as evidenced by confocal microscopy and/or cell fractionation studies.

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Ethnopharmacological Relevance: Antidesma acidum Retz, a perennial herb is known for its anti-diabetic potential among the traditional health care providers of the tribal communities of Manipur, India. Scientific validation of the ancient knowledge on traditional use of this plant with the help of modern tools and techniques can promote further research and its use in health care.

Aim Of The Study: Type 2 Diabetes (T2D) is a complex metabolic disorder and linked with hyperglycemia occurring from insufficiency in insulin secretion, action, or both.

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The ripe fruit pulp of different Musa species is known for its excellent source of nutrient contents. Musa balbisiana (MB) is one such variety of Musa species, mainly found in the southern part of Asia, especially in the North-eastern part of India, remains unexplored despite its continuous use by the local traditional healers. The present study focuses on identifying and quantifying the active chemicals present in the ripe fruit pulp of Musa balbisiana (RFPMB) to understand its combined efficacy and nutritional benefit to control human metabolic complications specially related to diabetes and cardiovascular disorder.

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Genetic change, particularly epigenetic alteration, is one of the imperative factors for sporadic breast cancer development in the worldwide population of women. The DNA methylation process is essential and natural for human cellular renewal and tissue homeostasis, but its dysregulation contributes to many pathological changes, including breast tumorigenesis. Chemopreventive agents mainly protect the abnormal DNA methylation either by hindering the division of pre-malignant cells or looming the DNA damage, which leads to malignancy.

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  • The study explores how the medicinal plant Lysimachia candida and its compound astragalin can help manage obesity caused by excessive calorie intake.
  • In tests on rats, daily administration of LCM significantly reduced body weight gain and blood fat levels over 140 days but did not alter certain hormone levels related to fat storage.
  • Results also showed that LCM and astragalin could inhibit fat cell formation by affecting key proteins, suggesting potential for further clinical research on these substances for obesity treatment.
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  • * Researchers found that the major bioactive compounds in MEPH, particularly Isoverbascoside (ISOVER), significantly enhanced glucose uptake in insulin-resistant cells and reduced high blood glucose levels in diabetic rats.
  • * The mechanisms of action for ISOVER include activating key signaling pathways related to glucose metabolism, while also modulating protein markers involved in insulin sensitivity.
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Methylguanidine, an originator of carcinogenic methylnitrosourea, has been found in many animal meats and processed stored food often in high concentration. The present study was designed to understand the multiple dose effect of N-methyl-N-nitrosourea (MNU), an end product of methylguanidine, in Swiss albino mice fertility as well as cancer induction. Accordingly, a total of five experimental groups of animal (female Swiss albino mice) were taken, considering group-I as vehicle control and group-II-V as treatment groups (whereas group-II-Vwere treated with single to quadruple doses of 50 mg/kg of MNU respectively in a three weeks interval).

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Murraya koenigii (MK) leaf being a rich source of bioactive secondary metabolites has received inordinate attention in drug development research. Formation of secondary plant metabolite(s) in medicinal plants depends on several factors and in this study the cause of variation in bioavailability and content of a vital bioactive phytochemical, mahanine in the MK leaves from different geographical locations of varying soil properties and weather parameters was determined. Accordingly, MK leaves and soil samples around the plant base in quintuplicate from each site across five states of India at similar time point were collected.

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Scented (joha) and black rice indigenous to northeast region (NER) of India are the two among 40,000 varieties of species Oryza sativa, prevalent for its great aroma, medicinal property, and/or equally noteworthy taste. Biochemical and target-based liquid chromatography mass spectrometry (LCMS) analysis was performed to identify and quantify the different phytonutrients from the selected rice grains of those two varieties. Biochemical assay revealed that the selected black rice (Chakhao Amubi) contains ∼1.

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  • Medicinal plant-based therapies, like Ricinus communis L. (castor plant) fruit extract (RCFE), show promise for cancer treatment due to their effectiveness, affordability, and minimal side effects.
  • RCFE exhibits strong anti-cancer properties, inducing cytotoxicity and apoptosis in breast cancer cells (MCF-7 and MDA-MB-231) while inhibiting their metastasis and reducing tumor volume in mice.
  • Analysis reveals four active compounds in RCFE that contribute to its anti-cancer effects, suggesting its potential as a viable treatment option for breast cancer.
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Mahanine (MH), a carbazole alkaloid isolated from an edible plant (Murraya koenigii), potentially inhibits the growth of altered subtypes of breast cancer cells in vitro and significantly reduced the mammary tumor burden in N-Methyl-N-nitrosourea (MNU) induced rat. The experimental results showed that 20-25 μM of MH for 24 h of treatment was very potent to reduce the cell proliferation through apoptosis with arresting the cells in G/G in both ER/p53 MCF-7 and triple negative/p53 MDA-MB-231 cells. On the other hand, 10-15 μM of MH exposure to those two cell lines, caused inhibition of mammosphere formation and reduction of CD44/CD24/epithelial-specific antigen-positive (ESA+) population, which ultimately led to loss of self-renewal ability of breast cancer stem cells.

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Endoplasmic reticulum (ER) stress results from protein unfolding/misfolding during cellular maturation, which requires a coordinated action of several chaperones and enzymes and Ca signalling. ER-stress possibly has a positive effect on survival of pancreatic cancer cell. Therefore, detailed insights into this complex signaling network are urgently needed.

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  • Murraya koenigii is a plant in the Rutaceae family known for its medicinal benefits in Ayurveda, particularly for its antiviral, anti-inflammatory, and anticancer properties.
  • Research has identified mahanine, a carbazole alkaloid, as the main active compound responsible for these effects, especially in cancer treatments.
  • The review aims to compile data on the plant's cytotoxic constituents, the anticancer mechanisms of mahanine, and findings on its bioavailability and toxicity from recent studies.
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5-Fluorouracil (5-FU) alone or in combination with other drugs is the main basis of chemotherapeutic treatment in colorectal cancer although patients with microsatellite instability generally show resistance to 5-FU treatment. The present investigation is focussed on the mechanistic insight of a pure herbal carbazole alkaloid, mahanine, as a single or in combination with 5-FU in colon cancer. We demonstrated that mahanine-induced apoptosis involved reactive oxygen species (ROS)-mediated nuclear accumulation of PTEN and its interaction with p53/p73.

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Pancreatic cancer is almost always fatal, in part because of its delayed diagnosis, poor prognosis, rapid progression and chemoresistance. Oncogenic proteins are stabilized by the Hsp90, making it a potential therapeutic target. We investigated the oxidative stress-mediated dysfunction of Hsp90 and the hindrance of its chaperonic activity by a carbazole alkaloid, mahanine, as a strategic therapeutic in pancreatic cancer.

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  • Barringtonia racemosa has traditional medicinal uses and demonstrates antitumor properties in mouse models, prompting research into its active components.
  • Quercetin 3-O-rutinoside (QOR) was isolated from this plant's fruits for the first time, quantified using HPLC, and identified through various spectral analyses.
  • QOR exhibited a dose- and time-dependent anti-proliferative effect on leukemic cell lines, triggering programmed cell death, particularly in T-lineage acute lymphoblastic leukemia cells, by activating the mitochondria-dependent caspase cascade.
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