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Akinyemi AO, Simpson KE, Oyelere SF, Nur M, Ngule CM, Owoyemi BCD, Ayarick VA, Oyelami FF, Obaleye O, Esoe DP, Liu X, Li Z. Unveiling the dark side of glucose-regulated protein 78 (GRP78) in cancers and other human pathology: a systematic review. Mol Med 2023; 29:112. [PMID: 37605113 PMCID: PMC10464436 DOI: 10.1186/s10020-023-00706-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/26/2023] [Indexed: 08/23/2023] Open
Abstract
Glucose-Regulated Protein 78 (GRP78) is a chaperone protein that is predominantly expressed in the lumen of the endoplasmic reticulum. GRP78 plays a crucial role in protein folding by assisting in the assembly of misfolded proteins. Under cellular stress conditions, GRP78 can translocate to the cell surface (csGRP78) were it interacts with different ligands to initiate various intracellular pathways. The expression of csGRP78 has been associated with tumor initiation and progression of multiple cancer types. This review provides a comprehensive analysis of the existing evidence on the roles of GRP78 in various types of cancer and other human pathology. Additionally, the review discusses the current understanding of the mechanisms underlying GRP78's involvement in tumorigenesis and cancer advancement. Furthermore, we highlight recent innovative approaches employed in downregulating GRP78 expression in cancers as a potential therapeutic target.
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Affiliation(s)
| | | | | | - Maria Nur
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, USA
| | | | | | | | - Felix Femi Oyelami
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, USA
| | | | - Dave-Preston Esoe
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, USA
| | - Xiaoqi Liu
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, USA
- Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, USA
| | - Zhiguo Li
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, USA.
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Godown J, Cantor R, Koehl D, Cummings E, Vo JB, Dodd DA, Lytrivi I, Boyle GJ, Sutcliffe DL, Kleinmahon JA, Shih R, Urschel S, Das B, Carlo WF, Zuckerman WA, West SC, McCulloch MA, Zinn MD, Simpson KE, Kindel SJ, Szmuszkovicz JR, Chrisant M, Auerbach SR, Carboni MP, Kirklin JK, Hsu DT. Practice variation in the diagnosis of acute rejection among pediatric heart transplant centers: An analysis of the pediatric heart transplant society (PHTS) registry. J Heart Lung Transplant 2021; 40:1550-1559. [PMID: 34598871 DOI: 10.1016/j.healun.2021.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/01/2021] [Accepted: 08/10/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Freedom from rejection in pediatric heart transplant recipients is highly variable across centers. This study aimed to assess the center variation in methods used to diagnose rejection in the first-year post-transplant and determine the impact of this variation on patient outcomes. METHODS The PHTS registry was queried for all rejection episodes in the first-year post-transplant (2010-2019). The primary method for rejection diagnosis was determined for each event as surveillance biopsy, echo diagnosis, or clinical. The percentage of first-year rejection events diagnosed by surveillance biopsy was used to approximate the surveillance strategy across centers. Methods of rejection diagnosis were described and patient outcomes were assessed based on surveillance biopsy utilization among centers. RESULTS A total of 3985 patients from 56 centers were included. Of this group, 873 (22%) developed rejection within the first-year post-transplant. Surveillance biopsy was the most common method of rejection diagnosis (71.7%), but practices were highly variable across centers. The majority (73.6%) of first rejection events occurred within 3-months of transplantation. Diagnosis modality in the first-year was not independently associated with freedom from rejection, freedom from rejection with hemodynamic compromise, or overall graft survival. CONCLUSIONS Rejection in the first-year after pediatric heart transplant occurs in 22% of patients and most commonly in the first 3 months post-transplant. Significant variation exists across centers in the methods used to diagnose rejection in pediatric heart transplant recipients, however, these variable strategies are not independently associated with freedom from rejection, rejection with hemodynamic compromise, or overall graft survival.
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Affiliation(s)
- J Godown
- Pediatric Cardiology, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee.
| | - R Cantor
- Kirklin Institute for Research in Surgical Outcomes, University of Alabama at Birmingham, Birmingham, Alabama
| | - D Koehl
- Kirklin Institute for Research in Surgical Outcomes, University of Alabama at Birmingham, Birmingham, Alabama
| | - E Cummings
- Kirklin Institute for Research in Surgical Outcomes, University of Alabama at Birmingham, Birmingham, Alabama
| | - J B Vo
- Kirklin Institute for Research in Surgical Outcomes, University of Alabama at Birmingham, Birmingham, Alabama
| | - D A Dodd
- Pediatric Cardiology, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - I Lytrivi
- Pediatric Cardiology, Columbia University Medical Center, New York, New York
| | - G J Boyle
- Pediatric Cardiology, Cleveland Clinic, Cleveland, Ohio
| | - D L Sutcliffe
- Pediatric Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - J A Kleinmahon
- Pediatric Cardiology, Ochsner Hospital for Children, New Orleans, Louisiana
| | - R Shih
- Pediatric Cardiology, University of Florida, Gainesville, Florida
| | - S Urschel
- Pediatric Cardiology, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - B Das
- Pediatric Cardiology, University of Mississippi Medical Center, Jackson, Mississippi
| | - W F Carlo
- Pediatric Cardiology, University of Alabama at Birmingham, Birmingham, Alabama
| | - W A Zuckerman
- Pediatric Cardiology, Columbia University Medical Center, New York, New York
| | - S C West
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - M A McCulloch
- Pediatric Cardiology, University of Virginia Children's Hospital, Charlottesville, Virginia
| | - M D Zinn
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - K E Simpson
- Pediatrics, Division of Cardiology, University of Colorado Anschutz Medical Campus Children's Hospital Colorado, Aurora, Colorado
| | - S J Kindel
- Pediatric Cardiology, Children's Hospital of Wisconsin, Milwaukee, Wisconsin
| | - J R Szmuszkovicz
- Pediatric Cardiology, Children's Hospital of Los Angeles, Los Angeles, California
| | - M Chrisant
- Pediatric Cardiology, Joe DiMaggio Children's Hospital, Hollywood, Florida
| | - S R Auerbach
- Pediatrics, Division of Cardiology, University of Colorado Anschutz Medical Campus Children's Hospital Colorado, Aurora, Colorado
| | - M P Carboni
- Pediatric Cardiology, Duke Children's Hospital, Durham, North Carolina
| | - J K Kirklin
- Kirklin Institute for Research in Surgical Outcomes, University of Alabama at Birmingham, Birmingham, Alabama; Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - D T Hsu
- Pediatric Cardiology, Children's Hospital at Montefiore, Bronx, New York
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Besra GS, Bolton RC, McNeil MR, Ridell M, Simpson KE, Glushka J, van Halbeek H, Brennan PJ, Minnikin DE. Structural elucidation of a novel family of acyltrehaloses from Mycobacterium tuberculosis. Biochemistry 1992; 31:9832-7. [PMID: 1390757 DOI: 10.1021/bi00155a040] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Analysis of the lipids of Mycobacterium tuberculosis H37Rv, by both normal- and reverse-phase thin-layer chromatography, revealed a series of novel glycolipids based on 2,3-di-O-acyltrehalose. The structures of these acylated trehaloses were elucidated by a combination of gas chromatography-mass spectrometry, 1H, 13C, two-dimensional 1H-1H, and 1H-13C nuclear magnetic resonance spectrometry. The fatty acyl substituents were mainly of three types: saturated straight-chain C16-C19 acids; C21-C25 "mycosanoic acids"; and C24-C28 "mycolipanolic acids." Analysis of one of the major 2,3-di-O-acyltrehaloses by two-dimensional 1H-chemical shift correlated and 1H-detected heteronuclear multiple-bond correlation spectroscopy established that the C18 saturated straight-chain acyl group was located at the 2 position and that the C24 mycosanoyl substituent was at the 3 position of the same "right-hand" glucosyl residue. At least six molecular species differing only in their fatty acid content comprised this family of di-O-acylated trehaloses. We regard these acyltrehaloses as elemental forms of the multiglycosylated acyltrehaloses (the lipooligosaccharides) perhaps due to an inability of the majority of isolates of virulent tubercle bacilli to glycosylate core acyltrehaloses. The acyltrehaloses are minor but consistent components of virulent M. tuberculosis and apparently the basis of the specific serological activity long associated with its lipid fractions.
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Affiliation(s)
- G S Besra
- Department of Microbiology, Colorado State University, Fort Collins 80523
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Hewson DC, Phillips MA, Simpson KE, Drury P, Crawford MA. Food intake in multiple sclerosis. Hum Nutr Appl Nutr 1984; 38:355-67. [PMID: 6526682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The usual dietary intake of 142 people with multiple sclerosis (MS), from different areas of Great Britain, has been assessed using the 7-day weighed intake method. This sample represents those subjects who said they had not altered their diets since diagnosis, ie, one-third of those who originally joined the management programme. Despite the low energy intakes of the subjects, intakes of other nutrients were similar to values of the general British population. The relationship of disability to energy and nutrient intake was studied. The relevance of dietary fatty acid intakes in MS is discussed with reference to epidemiological data and regional variations. The possibility that people with MS have specific requirements is considered and the need for nutritional guidance in MS is stressed.
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