Exploring the Importance of Differential Expression of Autophagy Markers in Term Placentas from Late-Onset Preeclamptic Pregnancies
Abstract
:1. Introduction
2. Results
2.1. Clinical Characteristics of Patients
2.2. The Placentas of Women with Late-Onset Preeclampsia Exhibit Increased Expression of Autophagic Proteins Involved in the Initiation Phase, ULK-1 and ATG9A
2.3. The Placental Tissue of Women with Late-Onset Preeclampsia Displays Augmented Expression of Autophagic Proteins Involved in the Elongation Phase, LC3 and ATG5
2.4. The Chorionic Villi of Women with Late-Onset Preeclampsia Show Augmented Expression of Autophagic Proteins Involved in the Fusion Phase, LAMP-1 and STX-17
2.5. The Chorionic Villi of Women with Late-Onset Preeclampsia Report Diminished Expression of Autophagic Regulator NUP62
3. Discussion
4. Materials and Methods
4.1. Study Design and Participants
4.2. Sample Processing
4.3. Gene Expression Determination
4.4. Immunohistochemistry
4.5. Statistical Analysis
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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HC (n = 43) | LO-PE (n = 68) | p-Value | |
---|---|---|---|
Maternal age (years) mean ± SD | 31.4 ± 5.1 | 29 ± 4.8 | * p = 0.0154 |
Nulliparous (%) total number | 14 (32.6) | 53 (77.9) | *** p < 0.0001 |
Gestation (weeks) | 39.1 ± 1.5 | 38.6 ± 1.4 | NS (p = 0.075) |
C-section (%) Total number | 8 (18.6) | 15 (22.1) | NS (p = 0.270) |
Placental weight (g) | 501 ± 65.3 | 370.3 ± 61.7 | *** p < 0.0001 |
GENE | SEQUENCE Fwd (5′ → 3′) | SEQUENCE Rev (5′ → 3′) | Temp |
---|---|---|---|
TBP | TGCACAGGAGCCAAGAGTGAA | CACATCACAGCTCCCCACCA | 60 °C |
ULK1 | GTTCCAAACACCTCGGTCCT | CGATCTCCATGGGCTTCTCC | 59 °C |
LC3 | GAGTTACCTCCCGCAGCC | ACCCAGAGGGACAACCCTAA | 60 °C |
NUP62 | CGAGGTGGATGTCCGTCTTT | GTCTGCAGCCTTGGGAAGAT | 61 °C |
STX17 | CCCGGCGGGAGGTTTTT | AAGTCAGTGACCAGTTGGCT | 60 °C |
LAMP1 | GGCCTCTTGCGTCTGGTAAC | AAAGGTACGCCTGGATGGTG | 57 °C |
ATG9A | GGCTGGAGAGGAGCACATAC | ACCAGCAATGACCAGGATGG | 60 °C |
ATG5 | GCAACTCTGGATGGGATTGC | TTGCAGCAGCGAAGTGTTTC | 61 °C |
Antigen | Species | Dilution | Provider | Protocol Specifications |
---|---|---|---|---|
ULK1 | Rabbit polyclonal | 1:100 | Abcam (ab203207) | 10 mM sodium citrate. pH = 6, before incubation with blocking solution |
LC3 | Rabbit monoclonal | 1:150 | Abcam (ab192890) | ------ |
NUP62 | Rabbit monoclonal | 1:1000 | Abcam (ab207305) | EDTA, pH = 9, before incubation with blocking solution |
STX17 | Rabbit polyclonal | 1:200 | Abcam (ab229646) | ------ |
LAMP1 | Rabbit polyclonal | 1:250 | Abcam (ab24170) | EDTA, pH = 9, before incubation with blocking solution |
ATG9A | Rabbit monoclonal | 1:500 | Abcam (ab108338) | 100% Triton 0.1% in PBS for 10 min before incubation with blocking solution |
ATG5 | Rabbit monoclonal | 1:100 | sc-133158 | 100% Triton 0.1% in PBS for 10 min before incubation with blocking solution |
IgG (Rabbit) | Mouse | 1:1000 | Sigma-Aldrich (Saint Louis, MO, USA) (RG96/B5283) | ------ |
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Garcia-Puente, L.M.; García-Montero, C.; Fraile-Martinez, O.; Bujan, J.; De León-Luis, J.A.; Bravo, C.; Rodríguez-Benitez, P.; López-González, L.; Díaz-Pedrero, R.; Álvarez-Mon, M.; et al. Exploring the Importance of Differential Expression of Autophagy Markers in Term Placentas from Late-Onset Preeclamptic Pregnancies. Int. J. Mol. Sci. 2024, 25, 2029. https://doi.org/10.3390/ijms25042029
Garcia-Puente LM, García-Montero C, Fraile-Martinez O, Bujan J, De León-Luis JA, Bravo C, Rodríguez-Benitez P, López-González L, Díaz-Pedrero R, Álvarez-Mon M, et al. Exploring the Importance of Differential Expression of Autophagy Markers in Term Placentas from Late-Onset Preeclamptic Pregnancies. International Journal of Molecular Sciences. 2024; 25(4):2029. https://doi.org/10.3390/ijms25042029
Chicago/Turabian StyleGarcia-Puente, Luis M., Cielo García-Montero, Oscar Fraile-Martinez, Julia Bujan, Juan A. De León-Luis, Coral Bravo, Patrocinio Rodríguez-Benitez, Laura López-González, Raul Díaz-Pedrero, Melchor Álvarez-Mon, and et al. 2024. "Exploring the Importance of Differential Expression of Autophagy Markers in Term Placentas from Late-Onset Preeclamptic Pregnancies" International Journal of Molecular Sciences 25, no. 4: 2029. https://doi.org/10.3390/ijms25042029