1
|
Tian Y, Sun H, Bao Y, Feng H, Pang J, En R, Jiang H, Wang T. ERp44 Regulates the Proliferation, Migration, Invasion, and Apoptosis of Gastric Cancer Cells Via Activation of ER Stress. Biochem Genet 2022; 61:809-822. [PMID: 36178559 DOI: 10.1007/s10528-022-10281-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 09/01/2022] [Indexed: 11/24/2022]
Abstract
Gastric cancer (GC) is one of the most prevalent malignancies worldwide. Endoplasmic reticulum (ER) stress plays a key role in the progression of GC. Rapid proliferation of tumor cells interferes with ER homeostasis, leading to ER stress and triggering unfolded protein response. Therefore, it is very necessary to investigate abnormally expressed ER resident proteins (ERp) in cancer cells. This study aimed to investigate the possible roles of ERp44. The mRNA and protein expression of genes were detected using qRT-PCR and western blot. Cell apoptosis was calculated using flow cytometry. Cell proliferation was determined using CCK-8 and colony formation assay. Cell migration was detected by wound healing, and cell invasion was measured by transwell assay. We found that ERp44 was obviously decreased in GC tissues. Furthermore, ERp44 overexpression distinctly suppressed the proliferation, migration, and invasion of MGC-803 and KATO III cells. In contrast, apoptosis was promoted by ERp44 overexpression. Furthermore, mechanistic studies revealed that overexpression of ERp44 inhibited malignant biological processes by regulating the eIF-2α/CHOP signaling pathway. Taken together, our data demonstrated that ERp44 regulated the proliferation, migration, invasion, and apoptosis via ERp44/eIF-2α/CHOP axis in GC. Targeting the ERp44and ER stress may be a promising strategy for GC.
Collapse
Affiliation(s)
- Yongjing Tian
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Haibin Sun
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Yinshengboer Bao
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Haiping Feng
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Jian Pang
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Riletu En
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Hongliang Jiang
- Department of Gastrointestinal Surgery, Inner Mongolia Bayannur Hospital, Inner Mongolia, 015000, China
| | - Tengqi Wang
- Department of Cancer Center, Inner Mongolia Bayannur Hospital, No. 98, Ulan Buhe Road, Bayan Nur, Inner Mongolia, 015000, China.
| |
Collapse
|
2
|
|
3
|
Lorson T, Lübtow MM, Wegener E, Haider MS, Borova S, Nahm D, Jordan R, Sokolski-Papkov M, Kabanov AV, Luxenhofer R. Poly(2-oxazoline)s based biomaterials: A comprehensive and critical update. Biomaterials 2018; 178:204-280. [DOI: 10.1016/j.biomaterials.2018.05.022] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 02/06/2023]
|
4
|
Lestini E, Blackman LD, Zammit CM, Chen T, Williams RJ, Inam M, Couturaud B, O'Reilly RK. Palladium-polymer nanoreactors for the aqueous asymmetric synthesis of therapeutic flavonoids. Polym Chem 2018. [DOI: 10.1039/c7py02050c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Polymeric core–shell micelles incorporating a chiral palladium pyridinooxazoline catalyst are presented as nanoreactors for the aqueous asymmetric synthesis of flavanones, a class of flavonoids, with therapeutic properties.
Collapse
Affiliation(s)
- E. Lestini
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | | | - C. M. Zammit
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - T. Chen
- University of Warwick
- Department of Chemistry
- Coventry
- UK
- College of Materials and Textiles
| | | | - M. Inam
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - B. Couturaud
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | | |
Collapse
|