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1. Vaccination induces broadly neutralizing antibody precursors to HIV gp41

Author

Schiffner, Torben, Phung, Ivy, Ray, Rashmi, Irimia, Adriana, Tian, Ming, Swanson, Olivia, Lee, Jeong Hyun, Lee, Chang-Chun D., Marina-Zárate, Ester, Cho, So Yeon, Huang, Jiachen, Ozorowski, Gabriel, Skog, Patrick D., Serra, Andreia M., Rantalainen, Kimmo, Allen, Joel D., Baboo, Sabyasachi, Rodriguez, Oscar L., Himansu, Sunny, Zhou, Jianfu, Hurtado, Jonathan, Flynn, Claudia T., McKenney, Katherine, Havenar-Daughton, Colin, Saha, Swati, Shields, Kaitlyn, Schultze, Steven, Smith, Melissa L., Liang, Chi-Hui, Toy, Laura, Pecetta, Simone, Lin, Ying-Cing, Willis, Jordan R., Sesterhenn, Fabian, Kulp, Daniel W., Hu, Xiaozhen, Cottrell, Christopher A., Zhou, Xiaoya, Ruiz, Jennifer, Wang, Xuesong, Nair, Usha, Kirsch, Kathrin H., Cheng, Hwei-Ling, Davis, Jillian, Kalyuzhniy, Oleksandr, Liguori, Alessia, Diedrich, Jolene K., Ngo, Julia T., Lewis, Vanessa, Phelps, Nicole, Tingle, Ryan D., Spencer, Skye, Georgeson, Erik, Adachi, Yumiko, Kubitz, Michael, Eskandarzadeh, Saman, Elsliger, Marc A., Amara, Rama R., Landais, Elise, Briney, Bryan, Burton, Dennis R., Carnathan, Diane G., Silvestri, Guido, Watson, Corey T., Yates, III, John R., Paulson, James C., Crispin, Max, Grigoryan, Gevorg, Ward, Andrew B., Sok, Devin, Alt, Frederick W., Wilson, Ian A., Batista, Facundo D., Crotty, Shane, and Schief, William R.

Published
2024
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2. Affinity gaps among B cells in germinal centers drive the selection of MPER precursors

Author

Ray, Rashmi, Schiffner, Torben, Wang, Xuesong, Yan, Yu, Rantalainen, Kimmo, Lee, Chang-Chun David, Parikh, Shivang, Reyes, Raphael A., Dale, Gordon A., Lin, Ying-Cing, Pecetta, Simone, Giguere, Sophie, Swanson, Olivia, Kratochvil, Sven, Melzi, Eleonora, Phung, Ivy, Madungwe, Lisa, Kalyuzhniy, Oleksandr, Warner, John, Weldon, Stephanie R., Tingle, Ryan, Lamperti, Edward, Kirsch, Kathrin H., Phelps, Nicole, Georgeson, Erik, Adachi, Yumiko, Kubitz, Michael, Nair, Usha, Crotty, Shane, Wilson, Ian A., Schief, William R., and Batista, Facundo D.

Published
2024
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3. Author Correction: Vaccination induces broadly neutralizing antibody precursors to HIV gp41

Author

Schiffner, Torben, Phung, Ivy, Ray, Rashmi, Irimia, Adriana, Tian, Ming, Swanson, Olivia, Lee, Jeong Hyun, Lee, Chang-Chun D., Marina-Zárate, Ester, Cho, So Yeon, Huang, Jiachen, Ozorowski, Gabriel, Skog, Patrick D., Serra, Andreia M., Rantalainen, Kimmo, Allen, Joel D., Baboo, Sabyasachi, Rodriguez, Oscar L., Himansu, Sunny, Zhou, Jianfu, Hurtado, Jonathan, Flynn, Claudia T., McKenney, Katherine, Havenar-Daughton, Colin, Saha, Swati, Shields, Kaitlyn, Schultze, Steven, Smith, Melissa L., Liang, Chi-Hui, Toy, Laura, Pecetta, Simone, Lin, Ying-Cing, Willis, Jordan R., Sesterhenn, Fabian, Kulp, Daniel W., Hu, Xiaozhen, Cottrell, Christopher A., Zhou, Xiaoya, Ruiz, Jennifer, Wang, Xuesong, Nair, Usha, Kirsch, Kathrin H., Cheng, Hwei-Ling, Davis, Jillian, Kalyuzhniy, Oleksandr, Liguori, Alessia, Diedrich, Jolene K., Ngo, Julia T., Lewis, Vanessa, Phelps, Nicole, Tingle, Ryan D., Spencer, Skye, Georgeson, Erik, Adachi, Yumiko, Kubitz, Michael, Eskandarzadeh, Saman, Elsliger, Marc A., Amara, Rama R., Landais, Elise, Briney, Bryan, Burton, Dennis R., Carnathan, Diane G., Silvestri, Guido, Watson, Corey T., Yates, III, John R., Paulson, James C., Crispin, Max, Grigoryan, Gevorg, Ward, Andrew B., Sok, Devin, Alt, Frederick W., Wilson, Ian A., Batista, Facundo D., Crotty, Shane, and Schief, William R.

Published
2024
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4. Mouse and human antibodies bind HLA-E-leader peptide complexes and enhance NK cell cytotoxicity

Author

Li, Dapeng, Brackenridge, Simon, Walters, Lucy C., Swanson, Olivia, Harlos, Karl, Rozbesky, Daniel, Cain, Derek W., Wiehe, Kevin, Scearce, Richard M., Barr, Maggie, Mu, Zekun, Parks, Robert, Quastel, Max, Edwards, Robert J., Wang, Yunfei, Rountree, Wes, Saunders, Kevin O., Ferrari, Guido, Borrow, Persephone, Jones, E. Yvonne, Alam, S. Munir, Azoitei, Mihai L., Gillespie, Geraldine M., McMichael, Andrew J., and Haynes, Barton F.

Published
2022
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7. Effects of Bacillus subtilis ATCC PTA-122264 on macronutrient digestibility and fecal characteristics, metabolites, and microbiota of healthy adult dogs subjected to an abrupt diet change.

Author

Oba, Patrícia M., Swanson, Olivia, Yifei Kang, Mioto, Julio, Menton, John, Vinay, Elena, Millette, Mathieu, Kelly, Melissa, and Swanson, Kelly S.

Subjects
*ESCHERICHIA coli, *MAGIC squares, *BLOOD collection, *CALORIC content of foods, *BACTERIAL diversity, *PROBIOTICS
Abstract

Probiotic use in dogs is increasing, with spore-forming Bacillus species gaining interest due to their viability during processing, storage, and in the gastrointestinal tract. B. subtilis is known for its adaptable metabolism that may be useful in pets subjected to abrupt dietary changes. The objective of this study was to determine dietary apparent total tract macronutrient digestibility (ATTD) and fecal characteristics, metabolites, and microbiota of healthy adult dogs supplemented with B. subtilis ATCC PTA-122264. All procedures were approved by the University of Illinois IACUC prior to experimentation. Dogs [n = 12; 6 ± 1 yr; 8.71 ± 0.91 kg body weight (BW)] were used in a replicated 3x3 Latin square design (n = 12/group) and fed to maintain BW. In each 42-d experimental period, dogs were allotted to one of three treatments: Control (kibble diet only), Low [kibble diet + 1×109 colonyforming units (CFU) of B. subtilis], and High (kibble diet + 5×109 CFU of B. subtilis). After a 22-d adaptation phase, a 5-d fecal collection phase was followed by a blood collection phase. On d 28, dogs were abruptly changed to a canned diet and fed for 14 d, with fecal samples collected on d 30 (2 d post change), 34 (6 d post change), 38 (10 d post change), and 42 (14 d post change). Fecal microbiota data were evaluated using QIIME2. All other data were analyzed using the Mixed Models procedure of SAS, with P < 0.05 being considered significant. B. subtilis supplementation of the kibble diet did not influence food or energy intake, fecal output, ATTD, most serum metabolites, hematology, fecal characteristics, fecal bacterial alpha and beta diversity indices, and dysbiosis index, demonstrating the safety of the strain in dogs. However, fecal Streptococcus and Blautia abundances were higher in High dogs than Low or Control dogs, while E. coli abundance was less in Low dogs than High and Control dogs. The abrupt change to a canned diet led to significant alterations in fecal characteristics, dysbiosis index, and bacterial abundances, which were not influenced by B. subtilis supplementation. Bacterial alpha diversity measures were affected, with observed ASV (amplicon sequence variants) and the Fisher Index reducing, and the Shannon Index increasing by dietary change. The abrupt dietary change caused a distinct shift in microbial communities, as evidenced by principal coordinates analysis plots. The relative abundances of various fecal bacterial taxa, including Bifidobacterium, Faecalibaculum, Turicibacter, and Lactobacillus were decreased, while Collinsella, Ruminococcus gnavus group, and Escherichia-Shigella were increased with the dietary change. Our data support the notion that daily supplementation of 1 – 5×109 CFU of B. subtilis ATCC PTA-122264 in healthy dogs is safe and does not affect markers of general health and fecal characteristics, warranting further exploration. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Rapid selection of HIV envelopes that bind to neutralizing antibody B cell lineage members with functional improbable mutations

Author

Swanson, Olivia, primary, Rhodes, Brianna, additional, Wang, Avivah, additional, Xia, Shi-Mao, additional, Parks, Robert, additional, Chen, Haiyan, additional, Sanzone, Aja, additional, Cooper, Melissa, additional, Louder, Mark K., additional, Lin, Bob C., additional, Doria-Rose, Nicole A., additional, Bonsignori, Mattia, additional, Saunders, Kevin O., additional, Wiehe, Kevin, additional, Haynes, Barton F., additional, and Azoitei, Mihai L., additional

Published
2021
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11. Mouse and Human Antibodies that Bind HLA-E-Leader Peptide Complexes and Enhance NK Cell Cytotoxicity

Author

Li, Dapeng, primary, Brackenridge, Simon, additional, Walters, Lucy C., additional, Swanson, Olivia, additional, Harlos, Karl, additional, Rozbesky, Daniel, additional, Cain, Derek W., additional, Wiehe, Kevin, additional, Scearce, Richard M., additional, Barr, Maggie, additional, Mu, Zekun, additional, Parks, Robert, additional, Quastel, Max, additional, Edwards, Robert J., additional, Wang, Yunfei, additional, Rountree, Wes, additional, Saunders, Kevin O., additional, Ferrari, Guido, additional, Borrow, Persephone, additional, Yvonne Jones, E., additional, Munir Alam, S., additional, Azoitei, Mihai L., additional, Gillespie, Geraldine M., additional, McMichael, Andrew J., additional, and Haynes, Barton F., additional

Published
2020
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17. Changes in Fertility Associated with Nutritional Programming and Excess Dietary Protein and its Influence on Primordial Follicle Numbers and Uterine pH

Author

Swanson, Olivia L.

Abstract

Proper management of replacement heifers from post-weaning to pre-breeding, to a large extent influences the time when puberty, pregnancy and parturition will occur. Furthermore, in order for a heifer to achieve maximum lifetime productivity she should calve by 24 mo of age (Patterson et al., 1992), therefore, reproductive success becomes essential. Heifers that give birth early in their first calving season remain in the herd longer (Lesmeister et al., 1973; Cushman et al., 2013). In order for a female to pay for her development costs she needs to wean 3 to 5 calves (Clark et al., 2005). Therefore, a reproductively efficient female becomes important to the profitability of any operation. Post-weaning development has historically focused on feeding cereal grains to allow heifers to enter the production system earlier. However, overfeeding heifers has decreased number of calves weaned and increased dystocia (Pinney et al., 1961). Therefore, a Stair-Step compensatory growth program, where females were restricted in caloric intake from 8 mo to 11 mo and then re-fed from 11 mo to 14 mo saw no detrimental effect on fertility (Chapter 3). Heifers on this Stair-Step diet saw an increase in primordial follicles at 14 mo of age. Additionally, mechanisms of primordial follicle action are poorly understood, therefore, serum leptin concentrations, roundabout axon guidance receptor, homolog 4 (ROBO4) and anti-Müllerian hormone (AMH) mRNA abundance were investigated. Leptin was not associated with follicle formation, however, ROBO4 and AMH may be important regulators controlling the number of follicles in the ovary (Chapter 3). Management and feeding strategies are important to reproductive success of beef heifers. Excess dietary protein in diets has been associated with elevated plasma urea nitrogen concentrations (PUN) and decreased fertility through an increase in uterine ion concentrations (pH) in cattle (Jordan and Swanson, 1979; Kiam et al., 1983; and Canfield et al., 1990). We examined the effect of elevated systemic concentrations of blood urea nitrogen on the uterine environment as well as pregnancy success (Chapter 4). Heifers fed a High Protein diet had elevated PUN’s, however, there were no deleterious effects on uterine pH or pregnancy success. Post-weaning to pre-breeding development is important to the reproductive success of a female. These are some development strategies we can address through calving distribution data. However, management of calving distributions could see improvement within the Great Plains. Therefore, to provide insight into the importance of a defined calving season, calving data was gathered from across the state of Nebraska (Chapter 5). Fifteen herds out of 28 (53%) manage an average calving day > 21 d and only 6 herds (21.4%) had heifers calving prior to the cowherd. Our results demonstrate that calving distribution management has room for improvement through different reproductive management strategies and record keeping. In summary, different nutritional strategies during post-weaning and prebreeding are important to the lifetime productivity of replacement heifers. By correctly managing replacement heifers during this time to conceive early can be beneficial to the lifetime productivity and stayability of that female. A female who calves early in the calving season will calve earlier for the remainder of her life and produce more pounds of weaned calf in her lifetime. Therefore, understanding nutritional strategies as well as a calving distribution can help manage a reproductively sound female.

Published
2017

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