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Piperine: An Anticancer and Senostatic Drug
Jae Sung Lim1,2, Da Young Lee1, Ju Hyeon Lim3
1Department of Biochemistry, Chonnam National University Medical School, 58128 Jeonnam-do, Republic of Korea.
Background:
Cancer is a representative geriatric disease closely related to senescent cells and cell aging in tissues. Senescent cells that surround cancer tissues reduce the effects of various cancer treatments and induce cancer recurrence through senescence-associated secretory phenotype (SASP) secretion. Thus, for good therapeutic effect, candidate drugs should be selective for both cancer and senescent cells. In this study, we investigated the selective effect of piperine as a potential senostatic agent as well as an anticancer drug.
Methods:
The effect of piperine on cytotoxicity and cell proliferation was tested by lactate dehydrogenase (LDH) or water-soluble tetrazolium salt (WST) assay. The levels of p16INK4a and p21, mitogen-activated protein kinases (MAPKs), and mammalian target of rapamycin (mTOR) were analyzed by Western blot analysis. The rejuvenation effects of piperine on the senescent cells were investigated by senescence-associated beta-galactosidase (SA-β-Gal) stain, mitochondria membrane potential (MMP) and reactive oxygen species (ROS) levels, and senescence-associated secretory phenotype (SASP) secretion after treatment with piperine in senescent cells.
Results:
While piperine induced high cytotoxicity in various cancer cell lines, it led to proliferating of premature senescent cells similar with nicotinamide (NA), which is known as a rejuvenating drug of senescent cells. Piperine differently affected cancer cells and premature senescent cells due to the different responses of intracellular signaling pathways and also reversed premature senescence phenotypes and modulated SASP secretion in premature senescent cells.
Conclusions:
From these results, we propose piperine as an effective cancer treatment that can simultaneously induce senostatic effects and the removal of cancer cells, not as an adjuvant to the existing senostatics for cancer treatment.
Insights
Piperine effectively targets cancer cells and senescent cells, offering a dual approach to cancer treatment by inducing senostatic effects and eliminating cancer cells. This study positions piperine as a primary cancer therapeutic, not an adjunct therapy.
Area of Science:
- Oncology
- Gerontology
- Cell Biology
Background:
- Cancer is linked to aging and senescent cells, which impede cancer treatments via SASP secretion.
- Targeting both cancer and senescent cells is crucial for effective cancer therapy.
- Piperine is investigated for its potential as a senostatic and anticancer agent.
Purpose of the Study:
- To investigate the selective effects of piperine on cancer and senescent cells.
- To evaluate piperine's potential as a senostatic agent and anticancer drug.
Main Methods:
- Cytotoxicity and proliferation assays (LDH, WST).
- Western blot analysis for p16INK4a, p21, MAPKs, and mTOR.
- Assessment of senescence markers (SA-β-Gal, MMP, ROS) and SASP secretion.
Main Results:
- Piperine exhibited high cytotoxicity in cancer cell lines.
- Piperine promoted proliferation in senescent cells, similar to nicotinamide.
- Piperine modulated intracellular pathways, reversed senescence phenotypes, and altered SASP in senescent cells.
Conclusions:
- Piperine demonstrates selective effects on cancer and senescent cells.
- Piperine acts as a senostatic agent and anticancer drug.
- Piperine is proposed as a standalone cancer treatment for simultaneous senostasis and cancer cell removal.
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