Evidence map›Paper›PMID 26499490›Full record

ArticleBMC cancer2015

Molecular mechanism of anti-cancer activity of phycocyanin in triple-negative breast cancer cells.

Mathangi Ravi, Shilpa Tentu, Ganga Baskar, Surabhi Rohan Prasad, Swetha Raghavan, Prajisha Jayaprakash, Jeyaraman Jeyakanthan, Suresh K Rayala, Ganesh Venkatraman

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 110 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Marine drugs · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Crystal structure of3 Biotech · 2023
    Article
  14. Review
  15. Review
  16. The Bioactivities of Phycocyanobilin from Spirulina.Journal of immunology research · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. Phycocyanin fromLife (Basel, Switzerland) · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Mathangi RaviDepartment of Human Genetics, Sri Ramachandra University, Chennai, 600116, India. matty_mir@yahoo.co.in.
Shilpa TentuDepartment of Biotechnology, Indian Institute of Technology Madras (IITM), Chennai, 600036, India. gsiitm011@gmail.com.
Ganga BaskarDepartment of Human Genetics, Sri Ramachandra University, Chennai, 600116, India. ganga.baskar@gmail.com.
Surabhi Rohan PrasadDepartment of Biotechnology, Indian Institute of Technology Madras (IITM), Chennai, 600036, India. surabirohan@gmail.com.
Swetha RaghavanDepartment of Biotechnology, Indian Institute of Technology Madras (IITM), Chennai, 600036, India. swetha.r@gmail.com.
Prajisha JayaprakashDepartment of Bioinformatics, Alagappa University, Karaikudi, India. prajishasujaya@gmail.com.
Jeyaraman JeyakanthanDepartment of Bioinformatics, Alagappa University, Karaikudi, India. jjkanthan@gmail.com.
Suresh K RayalaDepartment of Biotechnology, Indian Institute of Technology Madras (IITM), Chennai, 600036, India. rayala@iitm.ac.in.
Ganesh VenkatramanDepartment of Human Genetics, Sri Ramachandra University, Chennai, 600116, India. ganeshv@sriramachandra.edu.in.
Indian Institute of Technology Madras · INSri Ramachandra Institute of Higher Education and Research · INAlagappa University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTriple-negative breast cancers represent an important clinical challenge, as these cancers do not respond to conventional endocrine therapies or other available targeted agents. Phycocyanin (PC), a natural, water soluble and non-toxic molecule is shown to have potent anti-cancer property.

methodsIn this study, we determined the efficacy of PC as an anti-neoplastic agent in vitro on a series of breast cancer cell lines. We studied effects of PC in inducing DNA damage and apoptosis through western blot and qPCR. Also, anti-metastatic and anti-angiogenic properties were studied by classic wound healing and vasculogenic mimicry assays.

resultsWe found that triple negative MDA-MB-231 cells were most sensitive to PC (IC50 : 5.98 ± 0.95 μM) as compared to other cells. They also showed decreased cell proliferation and reduced colony formation ability upon treatment with PC. Profile of Cell cycle analysis showed that PC caused G1 arrest which could be attributed to decreased mRNA levels of Cyclin E and CDK-2 and increased p21 levels. Mechanistic studies revealed that PC induced apoptosis as evident by increase in percentage of annexin positive cells, increase in γ-H2AX levels, and by changing the Bcl-2/Bax ratio followed by release of cytochrome C and increased Caspase 9 levels. MDA MB 231 cells treated with PC resulted in decreased cell migration and increased cell adhesive property and also showed anti-angiogenic effects. We also observed that PC suppressed cyclooxygenase-2 (COX-2) expression and prostaglandin E(2) production. All these biological effects of phycocyanin on MDA MB 231 cells could be attributed to decreased MAPK signaling pathway. We also observed that PC is non-toxic to non-malignant cells, platelets and RBC's.

conclusionTaken together, these findings demonstrate, for the first time, that PC may be a promising anti-neoplastic agent for treatment of triple negative breast cancers.

Indexed as

Antineoplastic AgentsApoptosisBlotting, WesternCaspase 9Cell CycleCell Line, TumorCell MovementCell ProliferationCyclooxygenase 2DNA DamageFemaleFlow CytometryHumansMolecular Targeted TherapyPhycocyaninSignal TransductionAntineoplastic AgentsCaspase 9Cyclooxygenase 2Phycocyanin

Identifiers

PMID26499490
PMCPMC4619068
OpenAlexW1949444667

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.