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3. Supplementary figure S5 from Differential PI3Kδ Signaling in CD4+ T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy

Author

Ahmad, Shamim, primary, Abu-Eid, Rasha, primary, Shrimali, Rajeev, primary, Webb, Mason, primary, Verma, Vivek, primary, Doroodchi, Atbin, primary, Berrong, Zuzana, primary, Samara, Raed, primary, Rodriguez, Paulo C., primary, Mkrtichyan, Mikayel, primary, and Khleif, Samir N., primary

Published
2023
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4. Supplement Materials and Methods from Differential PI3Kδ Signaling in CD4+ T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy

Author

Ahmad, Shamim, primary, Abu-Eid, Rasha, primary, Shrimali, Rajeev, primary, Webb, Mason, primary, Verma, Vivek, primary, Doroodchi, Atbin, primary, Berrong, Zuzana, primary, Samara, Raed, primary, Rodriguez, Paulo C., primary, Mkrtichyan, Mikayel, primary, and Khleif, Samir N., primary

Published
2023
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5. Supplementary table 1 from Differential PI3Kδ Signaling in CD4+ T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy

Author

Ahmad, Shamim, primary, Abu-Eid, Rasha, primary, Shrimali, Rajeev, primary, Webb, Mason, primary, Verma, Vivek, primary, Doroodchi, Atbin, primary, Berrong, Zuzana, primary, Samara, Raed, primary, Rodriguez, Paulo C., primary, Mkrtichyan, Mikayel, primary, and Khleif, Samir N., primary

Published
2023
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6. Supplementary Figure Legends from Differential PI3Kδ Signaling in CD4+ T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy

Author

Ahmad, Shamim, primary, Abu-Eid, Rasha, primary, Shrimali, Rajeev, primary, Webb, Mason, primary, Verma, Vivek, primary, Doroodchi, Atbin, primary, Berrong, Zuzana, primary, Samara, Raed, primary, Rodriguez, Paulo C., primary, Mkrtichyan, Mikayel, primary, and Khleif, Samir N., primary

Published
2023
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12. Metastatic Neuroblastoma Presenting as a Submandibular Mass with Mandibular Bone Involvement in a Three-Year-Old Child

Author

Ullah, Asad, primary, Doroodchi, Atbin, additional, Velasquez Zarate, Luis, additional, Mattox, Samantha N., additional, Sliker, Taylor, additional, Willhite, Dorian K., additional, Khan, Jaffar, additional, Owen, Harry C., additional, Rajpurohit, Surendra K., additional, Patel, Nikhil G., additional, and Hatley, Robyn M., additional

Published
2021
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14. Gastric Mucormycosis in a Renal Transplant Patient Treated with Isavuconazole Monotherapy

Author

Gani, Imran, Doroodchi, Atbin, Falkenstrom, Kristina, Berry, Holly, Lee, Won, Mulloy, Laura, Saeed, Muhammad, and Kapoor, Rajan

Subjects
Article Subject
Abstract

Gastrointestinal mucormycosis is a rare infection in solid organ transplant recipients. Our patient, a 79-year-old male, presented with severe dysphagia and odynophagia about 2 weeks after receiving a renal transplant. An upper gastrointestinal (UGI) endoscopy revealed esophagitis and gastric ulceration, the cultures from which grew Rhizopus species. A usual treatment strategy should include Amphotericin B as monotherapy or in combination with Posaconazole or Isavuconazole for such infections. Our patient was treated with Isavuconazole monotherapy, in an effort to minimize renal toxicity from Amphotericin B to the new allograft. Unique to our case was a successful clinical response and resolution of UGI lesions with Isavuconazole monotherapy. Due to the vagueness of presenting symptoms, such infections can be easily missed in an immunocompromised patient which can have tragic outcomes. Prompt diagnosis and modulation of immunosuppression are essential to decrease mortality and morbidity. Isavuconazole is a novel agent and can be used as a monotherapy for such infections, especially in renal transplant recipients.

Published
2019
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17. Differential PI3Kδ Signaling in CD4+ T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy

Author

Ahmad, Shamim, primary, Abu-Eid, Rasha, additional, Shrimali, Rajeev, additional, Webb, Mason, additional, Verma, Vivek, additional, Doroodchi, Atbin, additional, Berrong, Zuzana, additional, Samara, Raed, additional, Rodriguez, Paulo C., additional, Mkrtichyan, Mikayel, additional, and Khleif, Samir N., additional

Published
2017
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18. 31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016): late breaking abstracts

Author

Althammer, Sonja, primary, Steele, Keith, additional, Rebelatto, Marlon, additional, Tan, Tze Heng, additional, Wiestler, Tobias, additional, Schmidt, Guenter, additional, Higgs, Brandon, additional, Li, Xia, additional, Shi, Li, additional, Jin, Xiaoping, additional, Antal, Joyce, additional, Gupta, Ashok, additional, Ranade, Koustubh, additional, Binning, Gerd, additional, Bellmunt, Joaquim, additional, de Wit, Ronald, additional, Vaughn, David J., additional, Fradet, Yves, additional, Lee, Jae Lyun, additional, Fong, Lawrence, additional, Vogelzang, Nicholas J., additional, Climent, Miguel A., additional, Petrylak, Daniel P., additional, Choueiri, Toni K., additional, Necchi, Andrea, additional, Gerritsen, Winald, additional, Gurney, Howard, additional, Quinn, David I., additional, Culine, Stéphane, additional, Sternberg, Cora N., additional, Mai, Yabing, additional, Puhlmann, Markus, additional, Perini, Rodolfo F., additional, Bajorin, Dean F., additional, Sharma, Padmanee, additional, Callahan, Margaret K., additional, Calvo, Emiliano, additional, Kim, Joseph W., additional, de Braud, Filipo, additional, Ott, Patrick A., additional, Bono, Petri, additional, Pillai, Rathi N., additional, Morse, Michael, additional, Le, Dung T., additional, Taylor, Matthew, additional, Spilliopoulou, Pavlina, additional, Bendell, Johanna, additional, Jaeger, Dirk, additional, Chan, Emily, additional, Antonia, Scott J., additional, Ascierto, Paolo A., additional, Hennicken, Delphine, additional, Tschaika, Marina, additional, Azrilevich, Alex, additional, Rosenberg, Jonathan, additional, Levy, Ofer, additional, Chan, Christopher, additional, Cojocaru, Gady, additional, Liang, Spencer, additional, Ophir, Eran, additional, Ganguly, Sudipto, additional, Toporik, Amir, additional, Kotturi, Maya, additional, Kfir, Tal Fridman, additional, Murter, Benjamin M., additional, Logronio, Kathryn, additional, Dassa, Liat, additional, Leung, Ling, additional, Greenwald, Shirley, additional, Azulay, Meir, additional, Kumar, Sandeep, additional, Alteber, Zoya, additional, Pan, Xiaoyu, additional, Machlenkin, Arthur, additional, Benita, Yair, additional, Drake, Andrew W., additional, Chajut, Ayelet, additional, Salomon, Ran, additional, Vankin, Ilan, additional, Safyon, Einav, additional, Hunter, John, additional, Levine, Zurit, additional, White, Mark, additional, Leidner, Rom, additional, Kang, Hyunseok, additional, Haddad, Robert, additional, Segal, Neil H., additional, Wirth, Lori J., additional, Ferris, Robert L., additional, Hodi, F. Stephen, additional, Sanborn, Rachel E., additional, Gajewski, Thomas F., additional, Sharfman, William, additional, McDonald, Dan, additional, Srivastava, Shivani, additional, Gu, Xuemin, additional, Phillips, Penny, additional, Passey, Chaitali, additional, Seiwert, Tanguy, additional, Habtetsion, Tsadik, additional, Zhou, Gang, additional, Sakellariou-Thompson, Donastas, additional, Haymaker, Cara, additional, Creasy, Caitlin, additional, Hurd, Mark, additional, Uraoka, Naohiro, additional, Canales, Jaime Rodriguez, additional, Koptez, Scott, additional, Hwu, Patrick, additional, Maitra, Anirban, additional, Bernatchez, Chantale, additional, Coyle, Scott M., additional, Roybel, Kole T., additional, Rupp, Levi J., additional, Santoro, Stephen P., additional, Secrest, Stephanie, additional, Spelman, Michael, additional, Ho, Hanson, additional, Gomes, Tina, additional, Tse, Tiffany, additional, Yung-Wu, Chia, additional, Taunton, Jack, additional, Lim, Wendell, additional, Emtage, Peter, additional, Moudgil, Tarsem, additional, Ballesteros-Merino, Carmen, additional, Hilton, Traci, additional, Paustian, Christopher, additional, Page, David, additional, Urba, Walter, additional, Fox, Bernard, additional, Bell, Bryan, additional, Patel, Ashish, additional, Olafsen, Tove, additional, Satpayev, Daulet, additional, Torgov, Michael, additional, Marchioni, Filippo, additional, Romero, Jason, additional, Jiang, Ziyue Karen, additional, Zamilpa, Charles, additional, Keppler, Jennifer S., additional, Mascioni, Alessandro, additional, Jia, Fang, additional, Lee, Chen-Yu, additional, Gudas, Jean, additional, Sullivan, Ryan J., additional, Hoshida, Yujin, additional, Logan, Theodore, additional, Khushalani, Nikhil, additional, Giobbie-Hurder, Anita, additional, Margolin, Kim, additional, Roder, Joanna, additional, Bhatt, Rupal, additional, Koon, Henry, additional, Olencki, Thomas, additional, Hutson, Thomas, additional, Curti, Brendan, additional, Blackmon, Shauna, additional, Mier, James W., additional, Puzanov, Igor, additional, Roder, Heinrich, additional, Stewart, John, additional, Amin, Asim, additional, Ernstoff, Marc S., additional, Clark, Joseph I., additional, Atkins, Michael B., additional, Kaufman, Howard L., additional, Sosman, Jeffrey, additional, Signoretti, Sabina, additional, McDermott, David F., additional, Anderson, Abraham A., additional, Milhem, Mohammed M., additional, Andtbacka, Robert H. I., additional, Minor, David, additional, Gorski, Kevin S., additional, Baker, Daniel M., additional, Hamid, Omid, additional, Akporiaye, Emmanuel, additional, Koguchi, Yoshinobu, additional, Sutcliffe, Kim, additional, Conder, Kristie, additional, Marron, Thomas, additional, Bhardwaj, Nina, additional, Hammerich, Linda, additional, George, Fiby, additional, Kim-Schulze, Seunghee, additional, Keler, Tibor, additional, Davis, Tom, additional, Crowley, Elizabeth, additional, Salazar, Andres, additional, Brody, Joshua, additional, Monjazeb, Arta, additional, Daly, Megan E., additional, Riess, Jonathan, additional, Li, Tianhong, additional, Murphy, William J., additional, Kelly, Karen, additional, Hu, Zhiwei, additional, Shen, Rulong, additional, Campbell, Amanda, additional, McMichael, Elizabeth, additional, Yu, Lianbo, additional, Ramaswam, Bhuvaneswari, additional, London, Cheryl A., additional, Xu, Tian, additional, Carson, William, additional, Kokolus, Kathleen M., additional, Repasky, Elizabeth A., additional, Schell, Todd D., additional, Drabick, Joseph D., additional, Messenheimer, David J., additional, Jensen, Shawn, additional, Rubinstein, Mark, additional, Andrijauskaite, Kristina, additional, Swiderska-syn, Marzena, additional, Lind, Kristin, additional, Choppin, Agnes, additional, Roell, Marina K., additional, Wrangle, John, additional, Rhode, Peter, additional, Wong, Hing, additional, Ahmad, Shamim, additional, Webb, Mason, additional, Abu-Eid, Rasha, additional, Shrimali, Rajeev, additional, Verma, Vivek, additional, Doroodchi, Atbin, additional, Berrong, Zuzana, additional, Yashar, David, additional, Samara, Raed, additional, Mkrtichyan, Mikayel, additional, Khleif, Samir, additional, Powell, Steven, additional, Gitau, Mark, additional, Sumey, Christopher, additional, Terrell, Andrew, additional, Lohr, Michele, additional, Nowak, Ryan K., additional, McGraw, Steven, additional, Jensen, Ash, additional, Blanchard, Miran, additional, Gold, Kathryn A., additional, Cohen, Ezra E. W., additional, Ellison, Christie, additional, Black, Lora, additional, Lee, John, additional, Spanos, William Chad, additional, Wennerberg, Erik, additional, Schwitzer, Emily, additional, Lhuillier, Claire, additional, Koelwyn, Graeme, additional, Hiner, Rebecca, additional, Jones, Lee, additional, Demaria, Sandra, additional, Amanda, Vandeveer, additional, Greiner, John W., additional, Schlom, Jeffrey, additional, Bookstaver, Michelle, additional, Jewell, Christopher M., additional, Gunderson, Andrew, additional, Boulmay, Brian, additional, Li, Rui, additional, Spieler, Bradley, additional, Happel, Kyle, additional, Feng, Zipei, additional, Dubay, Christopher, additional, Fisher, Brenda, additional, Aung, Sandra, additional, Mederos, Eileen, additional, Bifulco, Carlo B., additional, McNamara, Michael, additional, Bahjat, Keith, additional, Redmond, William, additional, Ochoa, Augusto, additional, Hu, Hong-Ming, additional, Mehta, Adi, additional, Lund-Johansen, Fridtjof, additional, Bedu-Addo, Frank, additional, Conn, Greg, additional, King, Michael, additional, Dutta, Panna, additional, Shepard, Robert, additional, Einstein, Mark, additional, Adams, Sylvia, additional, Wang, Ena, additional, Jin, Ping, additional, Novik, Yelena, additional, Morrison, Debra, additional, Oratz, Ruth, additional, Marincola, Franco M., additional, Stroncek, David, additional, Goldberg, Judith, additional, Formenti, Silvia C., additional, Galon, Jérôme, additional, Mlecnik, Bernhard, additional, Marliot, Florence, additional, Ou, Fang-Shu, additional, Lugli, Alessandro, additional, Zlobec, Inti, additional, Rau, Tilman T., additional, Nagtegaal, Iris D., additional, Vink-Borger, Elisa, additional, Hartmann, Arndt, additional, Geppert, Carol, additional, Roehrl, Michael H., additional, Bavi, Prashant, additional, Ohashi, Pamela S., additional, Wang, Julia Y., additional, Nguyen, Linh T., additional, Han, SeongJun, additional, MacGregor, Heather L., additional, Hafezi-Bakhtiari, Sara, additional, Wouters, Bradley G., additional, Kawakami, Yutaka, additional, Papivanova, Boryana, additional, Xu, Mingli, additional, Fujita, Tomonobu, additional, Hazama, Shoichi, additional, Suzuki, Nobuaki, additional, Nagano, Hiroaki, additional, Okuno, Kiyotaka, additional, Itoh, Kyogo, additional, Zavadova, Eva, additional, Vocka, Michal, additional, Spacek, Jan, additional, Petruzelka, Lubos, additional, Konopasek, Bohuslav, additional, Dundr, Pavel, additional, Skalova, Helena, additional, Torigoe, Toshihiko, additional, Sato, Noriyuki, additional, Furuhata, Tomohisa, additional, Takemasa, Ichiro, additional, Van den Eynde, Marc, additional, Jouret-Mourin, Anne, additional, Machiels, Jean-Pascal, additional, Fredriksen, Tessa, additional, Lafontaine, Lucie, additional, Buttard, Bénédicte, additional, Church, Sarah, additional, Maby, Pauline, additional, Angell, Helen, additional, Angelova, Mihaela, additional, Vasaturo, Angela, additional, Bindea, Gabriela, additional, Berger, Anne, additional, Lagorce, Christine, additional, Patel, Prabhu S., additional, Vora, Hemangini H., additional, Shah, Birva, additional, Patel, Jayendrakumar B., additional, Rajvik, Kruti N., additional, Pandya, Shashank J., additional, Shukla, Shilin N., additional, Wang, Yili, additional, Zhang, Guanjun, additional, Masucci, Giuseppe V., additional, Andersson, Emilia K., additional, Grizzi, Fabio, additional, Laghi, Luigi, additional, Botti, Gerardo, additional, Tatangelo, Fabiana, additional, Delrio, Paolo, additional, Cilberto, Gennaro, additional, Marincola, Franco, additional, Sargent, Daniel J., additional, Fox, Bernard A., additional, Algazi, Alain, additional, Tsai, Katy, additional, Rosenblum, Michael, additional, Nandoskar, Prachi, additional, Li, Amy, additional, Nonomura, John, additional, Takamura, Kathryn, additional, Dwyer, Mary, additional, Browning, Erica, additional, Talia, Reneta, additional, Twitty, Chris, additional, Gargosky, Sharron, additional, Campbell, Jean, additional, Le, Mai, additional, Pierce, Robert H., additional, Daud, Adil, additional, Gartrell, Robyn, additional, Marks, Douglas, additional, Stack, Edward, additional, Lu, Yan, additional, Izaki, Daisuke, additional, Beck, Kristen, additional, Jia, Dan Tong, additional, Armenta, Paul, additional, White-Stern, Ashley, additional, Fu, Yichun, additional, Blake, Zoe, additional, Taback, Bret, additional, Horst, Basil, additional, Saenger, Yvonne M., additional, Leonardo, Steven, additional, Gorden, Keith, additional, Fulton, Ross B., additional, Fraser, Kathryn, additional, Kangas, Takashi O., additional, Walsh, Richard, additional, Ertelt, Kathleen, additional, Graff, Jeremy, additional, Uhlik, Mark, additional, Sims, Jennifer S., additional, Lei, Liang, additional, Tsujiuchi, Takashi, additional, Bruce, Jeffrey N., additional, Canoll, Peter, additional, Tolcher, Anthony W, additional, Alley, Evan W, additional, Chichili, Gurunadh, additional, Canoll, Jan E, additional, Moore, Paul, additional, Bonvini, Ezio, additional, Johnson, Syd, additional, Shankar, Sadhna, additional, Vasselli, James, additional, Wigginton, Jon, additional, and Powderly, John, additional

Published
2016
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22. 31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016): late breaking abstracts

Author

Althammer, Sonja, Steele, Keith, Rebelatto, Marlon, Tan, Tze Heng, Wiestler, Tobias, Schmidt, Guenter, Higgs, Brandon, Li, Xia, Shi, Li, Jin, Xiaoping, Antal, Joyce, Gupta, Ashok, Ranade, Koustubh, Binning, Gerd, Bellmunt, Joaquim, de Wit, Ronald, Vaughn, David J., Fradet, Yves, Lee, Jae Lyun, Fong, Lawrence, Vogelzang, Nicholas J., Climent, Miguel A., Petrylak, Daniel P., Choueiri, Toni K., Necchi, Andrea, Gerritsen, Winald, Gurney, Howard, Quinn, David I., Culine, Stéphane, Sternberg, Cora N., Mai, Yabing, Puhlmann, Markus, Perini, Rodolfo F., Bajorin, Dean F., Sharma, Padmanee, Callahan, Margaret K., Calvo, Emiliano, Kim, Joseph W., de Braud, Filipo, Ott, Patrick A., Bono, Petri, Pillai, Rathi N., Morse, Michael, Le, Dung T., Taylor, Matthew, Spilliopoulou, Pavlina, Bendell, Johanna, Jaeger, Dirk, Chan, Emily, Antonia, Scott J., Ascierto, Paolo A., Hennicken, Delphine, Tschaika, Marina, Azrilevich, Alex, Rosenberg, Jonathan, Levy, Ofer, Chan, Christopher, Cojocaru, Gady, Liang, Spencer, Ophir, Eran, Ganguly, Sudipto, Toporik, Amir, Kotturi, Maya, Kfir, Tal Fridman, Murter, Benjamin M., Logronio, Kathryn, Dassa, Liat, Leung, Ling, Greenwald, Shirley, Azulay, Meir, Kumar, Sandeep, Alteber, Zoya, Pan, Xiaoyu, Machlenkin, Arthur, Benita, Yair, Drake, Andrew W., Chajut, Ayelet, Salomon, Ran, Vankin, Ilan, Safyon, Einav, Hunter, John, Levine, Zurit, White, Mark, Leidner, Rom, Kang, Hyunseok, Haddad, Robert, Segal, Neil H., Wirth, Lori J., Ferris, Robert L., Hodi, F. Stephen, Sanborn, Rachel E., Gajewski, Thomas F., Sharfman, William, McDonald, Dan, Srivastava, Shivani, Gu, Xuemin, Phillips, Penny, Passey, Chaitali, Seiwert, Tanguy, Habtetsion, Tsadik, Zhou, Gang, Sakellariou-Thompson, Donastas, Haymaker, Cara, Creasy, Caitlin, Hurd, Mark, Uraoka, Naohiro, Canales, Jaime Rodriguez, Koptez, Scott, Hwu, Patrick, Maitra, Anirban, Bernatchez, Chantale, Coyle, Scott M., Roybel, Kole T., Rupp, Levi J., Santoro, Stephen P., Secrest, Stephanie, Spelman, Michael, Ho, Hanson, Gomes, Tina, Tse, Tiffany, Yung-Wu, Chia, Taunton, Jack, Lim, Wendell, Emtage, Peter, Moudgil, Tarsem, Ballesteros-Merino, Carmen, Hilton, Traci, Paustian, Christopher, Page, David, Urba, Walter, Fox, Bernard, Bell, Bryan, Patel, Ashish, Olafsen, Tove, Satpayev, Daulet, Torgov, Michael, Marchioni, Filippo, Romero, Jason, Jiang, Ziyue Karen, Zamilpa, Charles, Keppler, Jennifer S., Mascioni, Alessandro, Jia, Fang, Lee, Chen-Yu, Gudas, Jean, Sullivan, Ryan J., Hoshida, Yujin, Logan, Theodore, Khushalani, Nikhil, Giobbie-Hurder, Anita, Margolin, Kim, Roder, Joanna, Bhatt, Rupal, Koon, Henry, Olencki, Thomas, Hutson, Thomas, Curti, Brendan, Blackmon, Shauna, Mier, James W., Puzanov, Igor, Roder, Heinrich, Stewart, John, Amin, Asim, Ernstoff, Marc S., Clark, Joseph I., Atkins, Michael B., Kaufman, Howard L., Sosman, Jeffrey, Signoretti, Sabina, McDermott, David F., Anderson, Abraham A., Milhem, Mohammed M., Andtbacka, Robert H. I., Minor, David, Gorski, Kevin S., Baker, Daniel M., Hamid, Omid, Akporiaye, Emmanuel, Koguchi, Yoshinobu, Sutcliffe, Kim, Conder, Kristie, Marron, Thomas, Bhardwaj, Nina, Hammerich, Linda, George, Fiby, Kim-Schulze, Seunghee, Keler, Tibor, Davis, Tom, Crowley, Elizabeth, Salazar, Andres, Brody, Joshua, Monjazeb, Arta, Daly, Megan E., Riess, Jonathan, Li, Tianhong, Murphy, William J., Kelly, Karen, Hu, Zhiwei, Shen, Rulong, Campbell, Amanda, McMichael, Elizabeth, Yu, Lianbo, Ramaswam, Bhuvaneswari, London, Cheryl A., Xu, Tian, Carson, William, Kokolus, Kathleen M., Repasky, Elizabeth A., Schell, Todd D., Drabick, Joseph D., Messenheimer, David J., Jensen, Shawn, Rubinstein, Mark, Andrijauskaite, Kristina, Swiderska-syn, Marzena, Lind, Kristin, Choppin, Agnes, Roell, Marina K., Wrangle, John, Rhode, Peter, Wong, Hing, Ahmad, Shamim, Webb, Mason, Abu-Eid, Rasha, Shrimali, Rajeev, Verma, Vivek, Doroodchi, Atbin, Berrong, Zuzana, Yashar, David, Samara, Raed, Mkrtichyan, Mikayel, Khleif, Samir, Powell, Steven, Gitau, Mark, Sumey, Christopher, Terrell, Andrew, Lohr, Michele, Nowak, Ryan K., McGraw, Steven, Jensen, Ash, Blanchard, Miran, Gold, Kathryn A., Cohen, Ezra E. W., Ellison, Christie, Black, Lora, Lee, John, Spanos, William Chad, Wennerberg, Erik, Schwitzer, Emily, Lhuillier, Claire, Koelwyn, Graeme, Hiner, Rebecca, Jones, Lee, Demaria, Sandra, Amanda, Vandeveer, Greiner, John W., Schlom, Jeffrey, Bookstaver, Michelle, Jewell, Christopher M., Gunderson, Andrew, Boulmay, Brian, Li, Rui, Spieler, Bradley, Happel, Kyle, Feng, Zipei, Dubay, Christopher, Fisher, Brenda, Aung, Sandra, Mederos, Eileen, Bifulco, Carlo B., McNamara, Michael, Bahjat, Keith, Redmond, William, Ochoa, Augusto, Hu, Hong-Ming, Mehta, Adi, Lund-Johansen, Fridtjof, Bedu-Addo, Frank, Conn, Greg, King, Michael, Dutta, Panna, Shepard, Robert, Einstein, Mark, Adams, Sylvia, Wang, Ena, Jin, Ping, Novik, Yelena, Morrison, Debra, Oratz, Ruth, Marincola, Franco M., Stroncek, David, Goldberg, Judith, Formenti, Silvia C., Galon, Jérôme, Mlecnik, Bernhard, Marliot, Florence, Ou, Fang-Shu, Lugli, Alessandro, Zlobec, Inti, Rau, Tilman T., Nagtegaal, Iris D., Vink-Borger, Elisa, Hartmann, Arndt, Geppert, Carol, Roehrl, Michael H., Bavi, Prashant, Ohashi, Pamela S., Wang, Julia Y., Nguyen, Linh T., Han, SeongJun, MacGregor, Heather L., Hafezi-Bakhtiari, Sara, Wouters, Bradley G., Kawakami, Yutaka, Papivanova, Boryana, Xu, Mingli, Fujita, Tomonobu, Hazama, Shoichi, Suzuki, Nobuaki, Nagano, Hiroaki, Okuno, Kiyotaka, Itoh, Kyogo, Zavadova, Eva, Vocka, Michal, Spacek, Jan, Petruzelka, Lubos, Konopasek, Bohuslav, Dundr, Pavel, Skalova, Helena, Torigoe, Toshihiko, Sato, Noriyuki, Furuhata, Tomohisa, Takemasa, Ichiro, Van den Eynde, Marc, Jouret-Mourin, Anne, Machiels, Jean-Pascal, Fredriksen, Tessa, Lafontaine, Lucie, Buttard, Bénédicte, Church, Sarah, Maby, Pauline, Angell, Helen, Angelova, Mihaela, Vasaturo, Angela, Bindea, Gabriela, Berger, Anne, Lagorce, Christine, Patel, Prabhu S., Vora, Hemangini H., Shah, Birva, Patel, Jayendrakumar B., Rajvik, Kruti N., Pandya, Shashank J., Shukla, Shilin N., Wang, Yili, Zhang, Guanjun, Masucci, Giuseppe V., Andersson, Emilia K., Grizzi, Fabio, Laghi, Luigi, Botti, Gerardo, Tatangelo, Fabiana, Delrio, Paolo, Cilberto, Gennaro, Marincola, Franco, Sargent, Daniel J., Fox, Bernard A., Algazi, Alain, Tsai, Katy, Rosenblum, Michael, Nandoskar, Prachi, Li, Amy, Nonomura, John, Takamura, Kathryn, Dwyer, Mary, Browning, Erica, Talia, Reneta, Twitty, Chris, Gargosky, Sharron, Campbell, Jean, Le, Mai, Pierce, Robert H., Daud, Adil, Gartrell, Robyn, Marks, Douglas, Stack, Edward, Lu, Yan, Izaki, Daisuke, Beck, Kristen, Jia, Dan Tong, Armenta, Paul, White-Stern, Ashley, Fu, Yichun, Blake, Zoe, Taback, Bret, Horst, Basil, Saenger, Yvonne M., Leonardo, Steven, Gorden, Keith, Fulton, Ross B., Fraser, Kathryn, Kangas, Takashi O., Walsh, Richard, Ertelt, Kathleen, Graff, Jeremy, Uhlik, Mark, Sims, Jennifer S., Lei, Liang, Tsujiuchi, Takashi, Bruce, Jeffrey N., Canoll, Peter, Tolcher, Anthony W, Alley, Evan W, Chichili, Gurunadh, Canoll, Jan E, Moore, Paul, Bonvini, Ezio, Johnson, Syd, Shankar, Sadhna, Vasselli, James, Wigginton, Jon, and Powderly, John

Subjects
Meeting Abstracts
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23. Differential PI3Kδ Signaling in CD4 + T-cell Subsets Enables Selective Targeting of T Regulatory Cells to Enhance Cancer Immunotherapy.

Author

Ahmad S, Abu-Eid R, Shrimali R, Webb M, Verma V, Doroodchi A, Berrong Z, Samara R, Rodriguez PC, Mkrtichyan M, and Khleif SN

Subjects
Animals, CD8-Positive T-Lymphocytes immunology, Cancer Vaccines immunology, Cancer Vaccines pharmacology, Drug Synergism, Enzyme Inhibitors pharmacology, Female, Immunotherapy methods, Isoenzymes, Lymphocyte Activation, Mice, Mice, Inbred C57BL, Mice, Knockout, Neoplasms, Experimental enzymology, Neoplasms, Experimental immunology, Phosphatidylinositol 3-Kinases genetics, Phosphoinositide-3 Kinase Inhibitors, Purines pharmacology, Quinazolinones pharmacology, Signal Transduction immunology, T-Lymphocyte Subsets immunology, CD4-Positive T-Lymphocytes enzymology, CD4-Positive T-Lymphocytes immunology, Neoplasms, Experimental therapy, Phosphatidylinositol 3-Kinases immunology, T-Lymphocytes, Regulatory enzymology, T-Lymphocytes, Regulatory immunology
Abstract

To modulate T-cell function for cancer therapy, one challenge is to selectively attenuate regulatory but not conventional CD4 + T-cell subsets [regulatory T cell (Treg) and conventional T cell (Tconv)]. In this study, we show how a functional dichotomy in Class IA PI3K isoforms in these two subsets of CD4 + T cells can be exploited to target Treg while leaving Tconv intact. Studies employing isoform-specific PI3K inhibitors and a PI3Kδ-deficient mouse strain revealed that PI3Kα and PI3Kβ were functionally redundant with PI3Kδ in Tconv. Conversely, PI3Kδ was functionally critical in Treg, acting there to control T-cell receptor signaling, cell proliferation, and survival. Notably, in a murine model of lung cancer, coadministration of a PI3Kδ-specific inhibitor with a tumor-specific vaccine decreased numbers of suppressive Treg and increased numbers of vaccine-induced CD8 T cells within the tumor microenvironment, eliciting potent antitumor efficacy. Overall, our results offer a mechanistic rationale to employ PI3Kδ inhibitors to selectively target Treg and improve cancer immunotherapy. Cancer Res; 77(8); 1892-904. ©2017 AACR ., (©2017 American Association for Cancer Research.)

Published
2017
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