[Retracted] MicroRNA181a regulates epithelialmesenchymal transition by targeting PTEN in drugresistant lung

Haihui Li1, Pei Zhang2, Xiaojin Sun2

  • 1Shandong University, Jinan, Shandong, P.R. China.

PubMed

Insights

This study on cell migration and invasion assays was retracted due to significant data duplication concerns. The International Journal of Oncology lost confidence in the presented findings.

Area of Science:

  • Oncology
  • Cell Biology
  • Scientific Publishing Ethics

Background:

  • A study published in the International Journal of Oncology presented findings from scratch wound, cell migration, and invasion assays.
  • Concerns were raised by a reader regarding potential data manipulation in the published figures.

Purpose of the Study:

  • To address concerns of data duplication and overlapping panels in figures.
  • To evaluate the integrity of the presented experimental data.

Main Methods:

  • Review of figures (2A, 2B, 5A-C, 6A, 7B, 8B) for evidence of overlapping and duplicated data panels.
  • Microscopic image analysis to identify data duplication.

Main Results:

  • Significant evidence of overlapping data was found within and between figure panels.
  • Duplication of cell microscopic images was identified across multiple figures.
  • A large number of data duplication events were confirmed.

Conclusions:

  • The identified data duplication events led to a retraction of the paper.
  • The International Journal of Oncology lost confidence in the presented data.
  • Authors did not provide a response to the editorial office regarding the concerns.

Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
21.7K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
3.9K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
4.0K